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LASER é um acrônimo que sumariza a amplificação da luz por emissão estimulada de radiação (eletromagnética). O Programa Saúde em Ação equipou diversas Unidades Básicas de Saúde com aparelhos de laser diodo. Cirurgiões Dentistas têm aplicado a laserterapia de baixa potência para acelerar a remissão de várias condições clínicas, sem necessidade de encaminhamento imediato para Atenção Secundária. O objetivo deste artigo é apresentar protocolos de laserterapia de baixa potência empregados por Cirurgiões Dentistas da Atenção Primária à Saúde de Campinas-SP, por meio da ilustração com casos clínicos atendidos em consultas de urgência. Aplicações para ulceração traumática e desordem temporomandibular foram realizadas em uma senhora de 60 anos de idade, que aguardava a substituição das próteses totais. Irradiou-se por laser vermelho (660nm) com energia de 1J as margens da ulceração. Após palpação da articulação e dos músculos mastigatórios para mapeamento, os pontos álgicos foram irradiados por laser infravermelho (808nm) com energia de 4J. Um homem de 50 anos de idade queixava-se de paralisia hemifacial havia 10 dias. A tentativa de recuperação do nervo facial ocorreu com irradiação por laser infravermelho com energia de 8J por ponto, em 22 pontos dos ramos do nervo facial. Em ambos os casos, a regressão do quadro clínico desconfortável foi observada. Os Profissionais do Sistema Único de Saúde (SUS) que são aptos ao uso dos equipamentos para laserterapia de baixa potência podem utilizar este recurso de modo seguro e bem sucedido, observando comprimento de onda do laser e doses protocolares para cada alteração a ser tratada.

LASER is an acronym which means light amplification by stimulated emission of radiation (electromagnetic). Many Primary Health Care Units received diode laser devices from the Brazilian Health in Action Program. Dental practitioners have applied low-level laser therapy for accelerating the resolution of several clinical problems, without the need to prompt referral for Secondary Attention. This manuscript aimed at presenting low-level laser therapy protocols, used by Dentists in Primary Health Care Units from Campinas-SP, illustrated with case reports of urgency consultations. Applications for traumatic ulcers and temporomandibular disorder were performed in a 60-year-old woman who was waiting for dental prosthesis replacement. Red laser irradiation (660nm) with 1J energy was delivered at the margins of the ulcer. Upon articular and masticatory muscles palpation for mapping, trigger points were irradiated with infrared laser (808nm), 4J energy. A 50-year-old man complained of hemifacial paresis for 10 days. The recovery attempt of the facial nerve was carried out by infrared laser irradiation with 8J energy per point in 22 points of the facial nerve branches. In both case reports, regression of the uncomfortable clinical problem was noted. Professionals from the Unified Health System (SUS) who are able to use a low-level laser device may safe and successfully operate this equipment, selecting the appropriate laser wavelength and protocol doses for managing each clinical problem.

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BACKGROUND: Peripheral Facial Palsy (PFP) is a facial paralysis with various etiologies, including idiopathic causes (Bell's palsy), infections, trauma, and genetic factors. Traditional treatments involve antiviral medications, corticosteroids, and physiotherapy. However, new therapies, such as Low-Level Laser Therapy (LLLT), are emerging with promising results. METHODS: This case series reports on two patients with PFP treated with LLLT combined with Vitamin B1, B6, and B12 supplementation. The first case involved a 52-year-old female with PFP due to a viral infection. The second case was a 33-year-old male who developed PFP following a traumatic brain injury. Both patients received LLLT sessions every two weeks, targeting 10 points along the facial nerve pathway from the facial notch across the face. The laser device used was the Theraphy EC (DMC, Sao Carlos, SP, Brazil), with each point receiving 4 Joules of energy applied perpendicular to the skin after cleaning the face with water and soap to remove lipids that could interfere. The administration of Vitamin B was done using NEUROBIONTA tablets (Vitamin B1 + Vitamin B6 + Vitamin B12; Procter & Gamble, Santiago, Chile) with one tablet taken daily for 30 days. RESULTS: After six to seven sessions, both patients showed significant improvement in facial muscle function and overall facial symmetry. In the first case, improvements were noted in muscle tonicity and facial movements, with the patient reporting reduced facial disfigurement. In the second case, notable recovery in facial mobility and symmetry was observed, with the patient experiencing decreased paresthesia and restored muscle functionality. CONCLUSION: These findings suggest that LLLT, combined with Vitamin B1, B6, and B12 supplementation, may effectively improve facial muscle function and symmetry in PFP patients. The non-invasive nature and ease of application make LLLT a viable option for PFP treatment. Further studies with larger sample sizes and standardized protocols are necessary to confirm these results and establish LLLT as a standard treatment for PFP.

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La parálisis facial periférica es una condición que impacta negativamente en la calidad de vida y psiquis de los pacientes. Se aborda como una afección relativamente frecuente, con diversas causas, con un manejo multidisciplinario para su tratamiento. Se presenta un estudio retrospectivo de cuatro pacientes femeninas que sufrieron parálisis facial periférica crónica, causada por cirugías previas. Se emplearon técnicas estáticas y dinámica para su tratamiento, incluyendo una nueva técnica estática no descrita anteriormente para parálisis faciales basada en el lifting de tercio medio de plano profundo. Se evaluó la satisfacción de los pacientes mediante el cuestionario FACE Q pre- y posoperatorio, mostrando resultados positivos en ambos grupos de tratamiento. Se destaca la importancia de la kinesiología motora en el proceso de rehabilitación. Demostramos la efi cacia de técnicas accesibles y de bajo costo, así como la introducción exitosa de técnicas más complejas, como la transferencia muscular con anastomosis nerviosa.

Peripheral facial paralysis is a condition that negatively impacts the quality of life and psyche of patients. It is addressed as a relatively frequent condition with various causes, managed through a multidisciplinary approach for its treatment. A retrospective study is presented involving four female patients who suff ered from chronic peripheral facial paralysis caused by previous surgeries. Both static and dynamic techniques were used for their treatment, including a new static technique not previously described for facial paralysis based on deep plane midface lifting. Patient satisfaction was evaluated using the FACE Q questionnaire pre- and post-operatively, showing positive results in both treatment groups. The importance of motor kinesiology in the rehabilitation process is highlighted. We demonstrate the effi cacy of accessible and low-cost techniques, as well as the successful introduction of more complex techniques, such as muscle transfer with nerve anastomosis.

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PURPOSE: To verify the efficacy of using athletic tape associated with myofunctional therapy in the speech-language-hearing treatment of facial palsy after stroke in the acute phase. METHOD: Randomized controlled clinical study with 88 patients with facial palsy in the acute phase of stroke. The sample was allocated in: Group 1: rehabilitation with orofacial myofunctional therapy and use of athletic tape on the paralyzed zygomaticus major and minor muscles; Group 2: rehabilitation alone with orofacial myofunctional therapy on the paralyzed face; Group 3: no speech-language-hearing intervention for facial paralysis. In the evaluation, facial expression movements were requested, and the degree of impairment was determined according to the House and Brackmann scale. Movement incompetence was obtained from measurements of the face with a digital caliper. After the evaluation, the intervention was carried out as determined for groups 1 and 2. The participants of the three groups were reassessed after 15 days. The statistical analysis used was the generalized equations. RESULTS: The groups were homogeneous in terms of age, measure of disability and functioning, severity of neurological impairment and pre-intervention facial paralysis. Group 1 had a significant improvement in the measure from the lateral canthus to the corner of the mouth, with better results than groups 2 and 3. CONCLUSION: The athletic tape associated with orofacial myofunctional therapy had better results in the treatment of facial paralysis after stroke in the place where it was applied.

OBJETIVO: Verificar a eficácia do uso da bandagem elástica funcional associada à terapia miofuncional no tratamento fonoaudiológico da paralisia facial pós-acidente vascular cerebral na fase aguda. MÉTODO: Estudo clínico controlado randomizado com 88 pacientes com paralisia facial na fase aguda do acidente vascular cerebral. A amostra foi alocada em: Grupo 1: reabilitação com terapia miofuncional orofacial e utilização da bandagem elástica funcional nos músculos zigomáticos maior e menor paralisados; Grupo 2: reabilitação apenas com terapia miofuncional orofacial na face paralisada; Grupo 3: sem qualquer intervenção fonoaudiológica para paralisia facial. Na avaliação foram solicitados os movimentos de mímica facial e o grau do comprometimento foi determinado de acordo com a escala de House e Brackmann. A incompetência do movimento foi obtida a partir de medições da face com paquímetro digital. Após a avaliação, a intervenção foi realizada de acordo como determinado para os grupos 1 e 2. Os participantes dos três grupos foram reavaliados após 15 dias. A análise estatística utilizada foi das equações generalizadas. RESULTADOS: Os grupos foram homogêneos quanto à idade, medida de incapacidade e funcionalidade, gravidade do comprometimento neurológico e da paralisia facial pré-intervenção. O grupo 1 teve melhora significativa na medida canto externo do olho à comissura labial, com melhores resultados quando comparado aos grupos 2 e 3. CONCLUSÃO: A bandagem elástica funcional associada a terapia miofuncional orofacial apresentou melhor resultado no tratamento da paralisia facial após acidente vascular cerebral no local onde foi aplicado.

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PURPOSE: Despite various existing surgical techniques, treatment of facial nerve palsy remains difficult. The purpose of this report is to present the cerclage sling technique using temporalis fascia to manage paralytic lagophthalmos. METHODS: A series of six patients underwent a cerclage sling technique using temporalis muscle fascia to treat paralytic lagophthalmos. The technique is presented in detail. Symptoms, palpebral fissures, and lagophthalmos were assessed pre- and postoperatively. Data were submitted for statistical analysis. RESULTS: After surgery, all patients achieved a reduction in clinical symptoms. The upper eyelids had lowered, and the inferior eyelids had elevated, reducing ocular exposure even if mild residual lagophthalmos was present. CONCLUSION: Cerclage using the temporalis muscle fascia sling technique is a safe and effective procedure to treat facial nerve paralytic lagophthalmos. A reduction in ocular exposure and lagophthalmos provides improvement in clinical symptoms and eyelid function.

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BACKGROUND: Facial nerve dysfunction can be a devastating trouble for post-parotidectomy patients. OBJECTIVE: To assess rehabilitation outcomes concerning patients with post-parotidectomy facial nerve dysfunction, comparing benign versus malignant neoplasms. METHODS: Prospective study enrolling adults who underwent parotidectomy with facial nerve sparing between 2016 and 2020. The Modified Sunnybrook System (mS-FGS) was used for facial assessments. Physiotherapy began on the first post-operative day with a tailored program of facial exercises based on Neuromuscular Retraining, to be performed at home 3 times/day. From the first outpatient consultation, Proprioceptive Neuromuscular Facilitation was added to the treatment of cases with moderate or severe facial dysfunctions. RESULTS: Benign and malignant groups had a statistically significant improvement in mS-FGS (p < 0.001 and p = 0.005, respectively). There was no significant difference between groups regarding treatment duration or number of physiotherapy sessions performed. The history of previous parotidectomy resulted in more severe initial dysfunctions and worse outcome. Age over 60 years and initially more severe dysfunctions impacted the outcome. CONCLUSION: Patients with benign and malignant parotid neoplasms had significant and equivalent improvement in postoperative facial dysfunction following an early tailored physiotherapy program, with no significant difference in the final facial score, treatment duration, or number of sessions required.

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OBJECTIVE: To review key evidence-based recommendations for the diagnosis and treatment of peripheral facial palsy in children and adults. METHODS: Task force members were educated on knowledge synthesis methods, including electronic database search, review and selection of relevant citations, and critical appraisal of selected studies. Articles written in English or Portuguese on peripheral facial palsy were eligible for inclusion. The American College of Physicians' guideline grading system and the American Thyroid Association's guideline criteria were used for critical appraisal of evidence and recommendations for therapeutic interventions. RESULTS: The topics were divided into 2 main parts: (1) Evaluation and diagnosis of facial palsy: electrophysiologic tests, idiopathic facial palsy, Ramsay Hunt syndrome, traumatic peripheral facial palsy, recurrent peripheral facial palsy, facial nerve tumors, and peripheral facial palsy in children; and (2) Rehabilitation procedures: surgical decompression of the facial nerve, facial nerve grafting, surgical treatment of long-term peripheral facial palsy, and non-surgical rehabilitation of the facial nerve. CONCLUSIONS: Peripheral facial palsy is a condition of diverse etiology. Treatment should be individualized according to the cause of facial nerve dysfunction, but the literature presents better evidence-based recommendations for systemic corticosteroid therapy.

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BACKGROUND: Moebius syndrome (MS) is a rare, non-progressive, neuromuscular, congenic disease involving the oral maxillofacial region. The present study aimed to describe the oral and extraoral findings in MS patients and their comprehensive dental management. METHODS: A digital search was carried out in PubMed/MEDLINE, Scopus, Web of Science, and Google Scholar, restricted to articles in English from Jan 01, 2000, to Apr 02, 2023, following PRISMA guidelines. The methodological quality of the studies was evaluated following the JBI guidelines. Qualitative analysis was carried out on the overall result, extraoral and intraoral manifestations, considering dental management as appropriate. RESULTS: Twenty-three studies were included, and a total of 124 cases of patients with MS were analyzed. The 82% of patients with MS were younger than 15 years of age. The most frequent extraoral manifestations were blinking and visual problems (78,22%), malformations of the upper and lower limbs (58,22%), bilateral facial paralysis (12,90%), lack of facial expression (12.09%), and unilateral facial paralysis (6,45%). On the other hand, the most frequent oral manifestations were tongue deformities (78,22%), micrognathia (37,90%), labial incompetence (36,29%), cleft palate (22,87%), gothic palate (16,12%), microstomia (15,32%), anterior open bite (15,32%), dental caries (8,87%), and periodontal disease (8,06%). The majority of MS patients were treated by pediatric dentistry (60,86%), using a surgical approach (56,52%), and orthodontic and orthopedic maxillary (43,47%) followed by restorative (39,13%), and periodontal treatments (21,73%). CONCLUSIONS: This systematic review demonstrates that patients with MS present a wide variety of oral and extraoral manifestations, for which dental treatments are planned and tailored to each patient in accordance with oral manifestations. These treatments encompass problem resolution and oral health maintenance, incorporating recent techniques in managing and treating patients with MS.

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Moebius syndrome (MBS) is a congenital cranial dysinnervation disorder (CCDD) characterized by a bilateral palsy of abducens and facial cranial nerves, which may coexist with other cranial nerves palsies, mostly those found in the dorsal pons and medulla oblongata. MBS is considered a "rare" disease, occurring in only 1:50,000 to 1:500,000 live births, with no gender predominance. Three independent theories have been described to define its etiology: the vascular theory, which talks about a transient blood flow disruption; the genetic theory, which takes place due to mutations related to the facial motor nucleus neurodevelopment; and last, the teratogenic theory, associated with the consumption of agents such as misoprostol during the first trimester of pregnancy. Since the literature has suggested the existence of these theories independently, this review proposes establishing a theory by matching the MBS molecular bases. This review aims to associate the three etiopathogenic theories at a molecular level, thus submitting a combined postulation. MBS is most likely an underdiagnosed disease due to its low prevalence and challenging diagnosis. Researching other elements that may play a key role in the pathogenesis is essential. It is common to assume the difficulty that patients with MBS have in leading an everyday social life. Research by means of PubMed and Google Scholar databases was carried out, same in which 94 articles were collected by using keywords with the likes of "Moebius syndrome," "PLXND1 mutations," "REV3L mutations," "vascular disruption AND teratogens," and "congenital facial nerve palsy." No exclusion criteria were applied.

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Background: The objective outcomes of masseteric nerve transfer in the setting of parotid malignancy are unclear. Objective: To measure objective facial reanimation outcomes of masseteric nerve transfer in patients with parotid malignancy who underwent parotidectomy with facial nerve resection. Materials and Methods: Retrospective review of patients who underwent masseteric nerve transfer for facial paralysis secondary to parotid malignancy was carried out at a tertiary referral hospital from August 2017 to November 2021. Objective facial reanimation outcomes were analyzed using Emotrics. Minimal follow-up of 6 months was required for inclusion. Results: Eight patients (five males) with a median age of 75.5 years (range 53-91) met inclusion criteria. Fifty percent had metastatic squamous cell carcinoma, and 50% had primary parotid malignancy. Five patients underwent concomitant cancer resection with facial nerve reconstruction. Seven patients received postoperative adjuvant radiotherapy. After reinnervation, patients had improved oral commissure excursion (from 1.51 mm ±1.27 to 3.77 mm ±1.81; p < 0.01) and facial symmetry during smile. Conclusion: In this study, masseteric nerve transfer enhanced oral commissure excursion and facial symmetry during smile in patients with parotid malignancy and facial nerve resection.

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BACKGROUND: Facial nerve dysfunction is the principal postoperative complication related to parotidectomy. OBJECTIVE: To test the hypothesis that the modified Sunnybrook Facial Grading System (mS-FGS) is superior to the original S-FGS in the assessment of facial nerve function following parotidectomy. METHODS: Prospective, longitudinal study evaluating patients with primary or metastatic parotid neoplasms undergoing parotidectomy with facial nerve-sparing between 2016 and 2020. The subjects were assessed twice, on the first postoperative day and at the first outpatient evaluation, 20-30 days post-surgery. Facial assessments were performed using the original and modified (plus showing the lower teeth) versions of the Sunnybrook System and documented by pictures and video recordings. Intra- and inter-rater agreements regarding the assessment of the new expression were analyzed. RESULTS: 101 patients were enrolled. In both steps, the results from the mS-FGS were significantly lower (p < 0.001). Subjects with a history of previous parotidectomy and those who underwent neck dissection had more severe facial nerve impairment. The mandibular marginal branch was the most frequently injured, affecting 68.3% of the patients on the first postoperative day and 52.5% on the first outpatient evaluation. Twenty patients (19.8%) presented an exclusive marginal mandibular branch lesion. The inter-rater agreement of the new expression assessment ranged from substantial to almost perfect. The intra-rater agreement was almost perfect (wk = 0.951). CONCLUSION: The adoption of the Modified Sunnybrook System, which includes evaluation of the mandibular marginal branch, increases the accuracy of post-parotidectomy facial nerve dysfunction appraisal.

ANTECEDENTES: A disfunção do nervo facial é a principal complicação pós-operatória relacionada à parotidectomia. OBJETIVO: Testar a hipótese de que o sistema Sunnybrook de graduação facial modificado (mS-FGS) é superior ao S-FGS original na avaliação da função do nervo facial após parotidectomia. MéTODOS:: Estudo longitudinal prospectivo avaliando o pós-operatório de pacientes com neoplasias parotídeas primárias ou metastáticas, submetidos à parotidectomia com preservação do nervo facial, entre 2016 e 2020. Os indivíduos foram avaliados duas vezes, no primeiro dia de pós-operatório e na primeira avaliação ambulatorial, 20-30 dias após a cirurgia. As avaliações faciais foram realizadas usando as versões original e modificada (que incluem mostrar os dentes inferiores) do sistema Sunnybrook e documentadas por fotos e vídeos. Foram adicionalmente analisadas as concordâncias intra e interexaminadoras da avaliação da nova expressão. RESULTADOS: Cento e um pacientes foram incluídos. Em ambas as etapas, os resultados do mS-FGS foram significativamente menores (p < 0,001). Indivíduos com história de parotidectomia prévia e aqueles submetidos ao esvaziamento cervical apresentaram comprometimento mais grave do nervo facial. O ramo marginal mandibular foi o mais afetado, acometendo 68,3% dos pacientes no primeiro dia de pós-operatório e 52,5% na primeira avaliação ambulatorial. Vinte pacientes (19,8%) apresentaram lesão exclusiva do ramo marginal mandibular. A concordância interexaminadores da avaliação da nova expressão variou de substancial a quase perfeita. A concordância intraexaminador foi quase perfeita (wk = 0,951). CONCLUSãO:: A adoção do sistema Sunnybrook modificado, que inclui a análise do ramo marginal mandibular, aumenta a precisão da avaliação da disfunção do nervo facial pós-parotidectomia.

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BACKGROUND: Early onset facial paralysis is usually managed with cross-face nerve grafts, however the low number of axons that reach the target muscle may result in weakness or failure. Multiple-source innervation, or 'supercharging', seeks to combine the advantages of different donor nerves while minimizing their weaknesses. We propose a combination of cross-face nerve grafts with local extra-facial nerve transfers to achieve earlier facial reanimation in our patients. METHODS: A retrospective cohort including all patients with early unilateral facial palsy (<12 months evolution) who underwent triple nerve transfer between 2019 and 2021 was conducted. We performed single-stage procedure including zygomatic-to-zygomatic and buccal-to-buccal cross-face grafts, a nerve-to-masseter to bucozygomatic trunk transfer, and a mini-hypoglossal to marginal branch transfer. Results were evaluated using the clinician-graded facial function scale (eFACE). RESULTS: Fifteen patients were included (eight females, seven males), mean age at the time of surgery was 48.9 ± 13.3 years. Palsy was right-sided in eight cases. The mean time from palsy onset to surgery was 5.5 ± 2.8 months. Patients showed improvement in static (70.8 ± 21.9 vs. 84.15 ± 6.68, p = 0.002) and dynamic scores (20 ± 16.32 vs. 74.23 ± 7.46, p < 0.001), as well as periocular (57.33 ± 15.23 vs. 74 ± 7.18, p = 0.007), smile (54.73 ± 11.93 vs. 85.62 ± 3.86, p < 0.001), mid-face (46.33 ± 18.04 vs. 95 ± 7.21, p < 0.001) and lower face scores (67.4 ± 1.55 vs. 90.31 ± 7.54, p < 0.001). CONCLUSION: The triple nerve transfer technique using cross-face nerve grafts, the nerve-to-masseter, and the hypoglossal nerve, is an effective and reproducible technique to obtain middle and lower face reanimation in cases of early facial palsy.

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El Síndrome de Ramsay Hunt es una entidad infrecuente, con una incidencia de 5 por cada 100.000 personas por año. Esta condición se caracteriza por una reactivación del virus de la varicela-zoster en el nervio facial. Su diagnóstico implica un reto para el médico puesto que suele ser netamente clínico, con la aparición de una triada consistente en: otalgia, parálisis facial ipsilateral y vesículas en el canal auditivo. El objetivo del artículo es presentar el caso de una mujer de 49 años de edad, con antecedente de epilepsia en tratamiento anticonvulsivante, quien ingresa con la triada clínica antes descrita, asociada a visión borrosa derecha y vértigo. La paciente fue tratada con antivirales y corticoides orales, presentando una resolución clínica favorable dado una reducción de más del 50% de las lesiones cutáneas. No se identificaron diferencias respecto a la presentación clínica de este síndrome al compararse con pacientes no epilépticos.

Ramsay Hunt Syndrome is a rare entity, with an incidence of 5 per 100,000 people per year. This condition is characterized by a reactivation of the varicella-zoster virus in the facial nerve. Its diagnosis implies a challenge for the physician since it is usually a clinical diagnosis, with the appearance of a clinical triad consisting of: otalgia, ipsilateral facial paralysis and vesicles in the ear canal. The objective of the article is to present the case of a 49-year-old woman, with a history of epilepsy receiving anticonvulsant treatment, who was admitted with the aforementioned clinical triad, associated with blurred right vision and vertigo. The patient was treated with oral antiviral management and oral corticosteroids, presenting a favorable clinical resolution given a reduction of more than 50% of the skin lesions. No differences were identified regarding the clinical presentation of this syndrome when compared with non-epileptic patients.

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La parálisis o paresia facial alternobárica es una neuropraxia del séptimo nervio cra-neal debido a cambios de presión. Se produce en el contexto de una disfunción de la trompa de Eustaquio, una dehiscencia canal del nervio facial y cambios en la presión atmosférica. Se considera una rara complicación de barotrauma. Su prevalencia es difícil de estimar y, probablemente, se encuentre subreportada. La forma de presentación más habitual incluye paresia facial, plenitud aural, hipoacusia, otalgia, parestesias faciales y linguales. La mayoría de los episodios son transitorios, con una duración entre minutos y algunas horas, con recuperación posterior completa. Entre los diagnósticos diferenciales se encuentran causas periféricas y centrales de paresia facial, las cuales hay que sospechar ante la persistencia de los síntomas en el tiempo o ante la presencia de otros signos o síntomas neurológicos. La evaluación inicial debe incluir un examen otoneurológico completo. La tomografía computarizada de hueso temporal favorece la visualización de posibles dehiscencias del canal del facial. La prevención de nuevos episodios incluye la práctica de ecualización efectiva, la resolución de la disfunción de la trompa de Eustaquio y en algunos casos específicos, métodos alternativos de ventilación del oído medio como la colocación de tubos de ventilación. Una vez instalada la parálisis facial, si no se produce recuperación espontánea, el uso de corticoides es una opción. Se presenta un caso de paresia facial alternobárica recurrente y una revisión de literatura.

Alternobaric facial palsy or paralysis is a neuropraxia of the seventh cranial nerve due to pressure changes. It occurs in the context of Eustachian tube dysfunction, facial nerve canal dehiscence, and changes in atmospheric pressure. It is considered a rare complication of barotrauma. Its prevalence is difficult to estimated, and this condition is probably underreported. The most common form of presentation includes facial weakness, ear fullness or pressure, hearing loss, otalgia, facial and lingual paresthesias. Most episodes are transient, lasting from minutes to a few hours, with a subsequent complete recovery. Among the possible differential diagnoses are peripheral and central causes of facial paralysis, which must be suspected due to the persistence of symptoms over time or the presence of other neurological signs or symptoms. The initial evaluation should include a complete otoneurological examination. Computed tomography of the temporal bone is useful for the visualization of facial canal dehiscence. Prevention of further episodes includes practicing effective equalization, Eustachian tube dysfunction treatment, and in certain specific cases, alternative middle ear ventilation methods such as tympanostomy tubes. Once facial paralysis is established, if spontaneous recovery does not occur, the use of corticosteroids is considered an option. A case of recurrent alternobaric facial paresis and a review of the literature are presented.

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Laser acupuncture can be used to treat neurosensory alterations and motor disorders caused by dental treatments. This study aimed to review the existing literature on the effects of laser acupuncture on neuropathies in the context of dentistry and to search for treatment modalities in which this technique is used. This systematic review was conducted in accordance with the Cochrane Collaboration guidelines and the PICOS strategy. Randomized clinical trials that evaluated laser acupuncture as a primary intervention for facial neuropathy were included. We searched the database for relevant studies and manually searched the gray literature until April 2022, and finally included four studies. The study was considered eligible if it included patients with paresthesia, facial paralysis, or neuralgia, neuropathies within dentistry, and referred to the application of laser acupuncture as a treatment method. The risk of bias was assessed using the RoB 2 tool. It was observed that the recommended wavelengths ranged from 790 nm to 810 nm, with a frequency of at least two applications per week, and to a greater or lesser degree, all evaluated studies obtained an improvement in sensory or motor recovery of the facial nerves. The use of laser acupuncture presented itself as a viable alternative in dentistry for the treatment of paresthesia and facial paralysis due to its therapeutic potential in neuropathic treatment (CRD42022344339).

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BACKGROUND Recurrent facial nerve palsy, orofacial edema, and fissured tongue are a triad of manifestations that characterize a rare disorder named Melkersson-Rosenthal syndrome. It is important to consider this syndrome when diagnosing atypical, unilateral, or bilateral facial palsies with characteristics of familial prevalence. There is no established outcome prediction for this disease and the syndrome does not have a specific duration or prospective timeline. Recurrent facial paralysis can require surgery and a multidisciplinary approach with regular follow-up. CASE REPORT We describe a 38-year-old woman presenting with a third episode of facial paralysis and discuss her pedigree chart and the treatment course chosen. After conservative treatment with oral corticosteroids, antiviral therapy, and motor physical therapy with no significant improvements, the patient underwent facial nerve decompression surgery with outstanding results. Eight months after surgery and intense postoperative physical therapy, the patient improved from grade VI to grade II palsy on the House-Brackmann Scale. The patient's older brother also presented a fissured tongue and had a history of 2 episodes of facial paralysis. The patient's son, mother, and sister also presented tongue fissuring but did not have any other clinical signs of the syndrome. CONCLUSIONS Despite being rare, Melkersson-Rosenthal syndrome is associated with a family inheritance and its diagnosis has prognostic implications. Therefore, it is of the utmost importance to have suspicion of this disorder in order to improve quality of care and target the treatment accordingly. Surgical treatment in these cases seems to be an excellent choice to treat current facial paralysis and prevent further episodes.

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BACKGROUND: Paralytic lagophthalmos can have devastating consequences for vision if left untreated. Several surgical techniques have been described, including the utilization of alloplastic and autologous materials. OBJECTIVES: The authors sought to evaluate the effectiveness of the surgical treatment of paralytic lagophthalmos with combined techniques employing autologous material and involving the upper and lower eyelids. METHODS: Patients with paralytic lagophthalmos underwent stretching of the levator aponeurosis with interposition of conchal cartilage in the upper eyelid associated with sectioning of the orbitomalar ligament and lateral canthoplasty in the lower eyelid. The effectiveness of the technique was evaluated employing subjective (symptomatology) and objective parameters (ophthalmologic evaluation and measurements of lagophthalmos and marginal reflex distances 1 and 2). RESULTS: Eight patients with paralytic lagophthalmos were subjected to the proposed technique. In the postoperative period, 85.7% reported complete improvement of symptoms and 62.5% presented a normal eye examination. The mean lagophthalmos measurement was reduced by 5.93 mm, the mean marginal reflex distance 2 was reduced by 2.61 mm, and the mean marginal reflex distance 1 was reduced by 0.69 mm. CONCLUSIONS: The technique presented herein, employing autologous material associated with sectioning of the orbitomalar ligament and lateral canthoplasty, was effective in the treatment of paralytic lagophthalmos and did not present significant complications, such as extrusion.

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OBJECTIVES: A low Neutrophil Lymphocyte Ratio (NLR) has been shown to be associated with good prognosis in Bell's Palsy (BP). However, the effect of chronic diseases that may affect the NLR, including Diabetes Mellitus (DM), has not been clarified in this context. This study aimed to evaluate the relationship between NLR and Mean Platelet Volume (MPV) in BP according to whether it is accompanied by DM, and their relationship with prognosis. METHODS: A prospective observational study was conducted from May 2014 to May 2020 in a tertiary referral center, of all 79 consecutive participants diagnosed with BP in department of otolaryngology and 110 consecutive healthy participants admitted to the check-up unit. Patients diagnosed with BP were divided into two groups according to whether they were diagnosed with DM: diabetic BP patients (DM-BP, n = 33) and non-diabetic BP patients without any chronic disease (nonDM-BP, n = 46). Neutrophil (NEUT) and Lymphocyte (LYM) counts, and Mean Platelet Volume (MPV) were assessed from peripheral blood samples, and the NLR was calculated. Prognosis was evaluated using the House-Brackmann Score (HBS) six months after diagnosis. RESULTS: The mean NLR was 2.85 ±â€¯1.85 in BP patients and 1.69 ±â€¯0.65 in the control group. The mean NLR was significantly higher in BP patients than healthy controls (p < 0.001). The mean NLR was 2.58 ±â€¯1.83 in the nonDM-BP group, 3.23 ±â€¯1.83 in the DM-BP group, and 1.69 ±â€¯0.65 in the control group. The NLR was significantly higher in the nonDM-BP and DM-BP groups than in the control group (p < 0.05). The recovery was 90% according to the HBS. The optimal cut-off value was 2.41 (p = 0.5). CONCLUSION: The NLR was increased in both diabetic and non-diabetic BP and had similar prognostic value in predicting the HBS before treatment in diabetic and non-diabetic patients with BP. MPV wasn't significantly different in diabetic and non-diabetic BP patients compared with the normal population.

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Many complications can occur after the injection of local intraoral anesthetics (ILIA) before dental intervention. Facial paralysis (FP) is one of these complications. The purpose of this study was to systematically analyze the association between ILIA and FP. A systematic review was carried out taking into account the methodology of the Cochrane Handbook for Systematic Reviews of Interventions and the PRISMA statement. The search strategy used "Palsy AND Facial" and "Paralysis AND Facial" as search terms. The ScienceDirect, PubMed and Scopus databases were searched using the "dentistry journal" filter. The inclusion criteria included studies describing FP after or during ILIA that were published in dental journals. The CAse REports (CARE) checklist was applied in evaluating the methodological quality of case reports. A total of 2,462 articles (algorithm) were identified. After reviewing titles and abstracts, 18 articles were deemed relevant taking into account the objectives of this study. Only 13 of them, after reading the full text, met the inclusion criteria and were analyzed. Case reports on 18 cases of FP were analyzed, 12 of which described the early development of FP (onset within 24 h) and 6 the late development (onset after 24 h). Acceptable compliance with CARE guidelines was observed in the included studies . Early FP CRs presented the effect of the administered anesthetic on the facial nerve, and the vascular effect of the vasoconstrictor included in the anesthetic formula, while more recent FP CRs focused on the reactivation of herpes simplex virus type 1 (HSV-1), human herpesvirus 6 (HHV-6) or varicella-zoster virus (VZV).

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Los terceros molares son piezas dentarias correspondientes a la dentición permanente y se encuentran por detrás de los segundos molares. Erupcionan entre los 18 y 27 años aproximadamente, tienen variedad de formas, anomalías y disposición diversa. Normalmente se encuentran total o parcialmente retenidos en el hueso maxilar. La retención es muy frecuente y afecta aproximadamente al 75% de la población. La causa principal es por la falta de espacio dentro de la boca. La patología derivada de la retención de un tercer molar puede generar diferentes alteraciones: abscesos, sinusitis, reabsorción de las raíces de los dientes adyacentes, caries del molar retenido y/o del segundo molar, úlceras en la mucosa contigua, podrían generar quistes, ameloblastomas y ulceraciones leucoqueratósicas que pueden degenerar en carcinomas, alteraciones nerviosas o vasomotoras: dolores faciales, trismus, y parálisis facial ipsilateral. Las extracciones profilácticas de terceros molares asintomáticos están justificadas cuando los terceros molares se encuentran bajo prótesis removible que puede estimular su erupción, molares semierupcionados que pueden generar pericoronitis, caries o problemas periodontales; pacientes que van a ser sometidos a radioterapia; cuando el diente incluido interfiera en una cirugía ortognática. Si el molar retenido presenta sintomatología por parte del paciente está aconsejada su extracción quirúrgica.

The third molars are dental pieces corresponding to the permanent dentition and are located behind the second molars. They erupt between the ages of 18 and 27 approximately, have a variety of shapes, anomalies, and diverse dispositions. They are normally fully or partially retained in the maxillary bone. Retention is very frequent and affects approximately 75% of the population. The main cause is due to the lack of space inside the mouth. The pathology derived from the retention of a third molar can generate different alterations: abscesses, sinusitis, resorption of the roots of adjacent teeth, caries of the retained molar and/or second molar, ulcers in the contiguous mucosa, could generate cysts, ameloblastomas and leukokeratotic ulcerations that can degenerate into carcinomas, nervous or vasomotor disorders: facial pain, trismus, and ipsilateral facial paralysis. Prophylactic extractions of asymptomatic third molars are justified when the third molars are under removable prosthesis that can stimulate their eruption, semi-erupted molars that can generate pericoronitis, caries or periodontal problems; patients who are going to undergo radiotherapy; when the included tooth interferes with orthognathic surgery. If the retained molar presents symptoms on the part of the patient, its surgical extraction is recommended.

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