RESUMEN
The aim of this case report was to describe the inferior alveolar nerve (IAN) lateralization technique using the piezoelectric device for the posterior rehabilitation of an atrophic mandible with implants. The patient presented the absence of elements 35 and 36 associated with a vertical defect impairing the adequate dental implant placement without IAN damage. A full-thickness mucoperiosteal flap was raised, and a bone window was made with a piezoelectric device centralized on the IAN canal position. After dissection, the IAN was moved buccally with a sterile elastic strip. Morse cone 4.0 × 1.5-mm implants were inserted while the IAN remained retracted. At the 4-month follow-up, the screw-retained prosthesis was installed guaranteeing the recovering masticatory function. In conclusion, the case report showed that the IAN lateralization performed with an adequate surgical technique can be successfully indicated for longer implant placement in edentulous atrophic posterior mandible with no permanent neural damage.
Asunto(s)
Implantación Dental Endoósea/métodos , Arcada Parcialmente Edéntula/cirugía , Mandíbula/cirugía , Nervio Mandibular/cirugía , Piezocirugía/métodos , Adulto , Tomografía Computarizada de Haz Cónico , Implantes Dentales , Diseño de Prótesis Dental , Femenino , Humanos , Mandíbula/diagnóstico por imagen , Mandíbula/inervación , Nervio Mandibular/fisiología , Colgajos QuirúrgicosRESUMEN
Paracoccidioidomycosis (PCM) is a granulomatous disease caused by fungi of the species complex of the Paracoccidioides genus. One of the main clinical manifestations of PCM is the presence of oral lesions with the presence of epithelioid granulomas. In this work, we aimed to evaluate the frequency of SNPs in the TNF-α, JAK1, VDR, DC-SIGN and FcγRIIa genes in patients with chronic PCM and verify possible association of these SNPs with the organisation pattern of the granulomas in the oral lesions. A total of 66 samples of DNA were obtained from oral lesions biopsies and 106 DNA samples were obtained from healthy individuals. The individuals were genotyped for SNPs in DC-SIGN (rs4804803), FcγRIIa (rs1801274), JAK1 (rs11208534), TNF-α (rs1800629) and VDR (rs7975232) by real-time PCR and allele discrimination method. Granulomas were classified as loose or dense according to the histological pattern. In the VDR (rs7975232), the CC genotype (P < 0.001, OR = 5.94, 95% CI = 2.07-17.05), and the C allele (P = 0.027, OR = 2.71, 95% CI = 1.07-6.86), as well as the GG genotype in DC-SIGN (rs4804803) (P = 0.032, OR: 3.76, 95%, I = 1.06-13.38) are associated with an increased risk of oral PCM. Our data indicate that VDR and DC-SIGN genetics variations are related to the susceptibility of oral PCM in the group of patients analysed.
Asunto(s)
Moléculas de Adhesión Celular/genética , Predisposición Genética a la Enfermedad , Lectinas Tipo C/genética , Enfermedades de la Boca/genética , Enfermedades de la Boca/patología , Paracoccidioidomicosis/genética , Paracoccidioidomicosis/patología , Receptores de Calcitriol/genética , Receptores de Superficie Celular/genética , Adulto , Alelos , Enfermedad Crónica , Estudios de Cohortes , Femenino , Granuloma/patología , Histocitoquímica , Humanos , Masculino , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple , Reacción en Cadena en Tiempo Real de la PolimerasaRESUMEN
Low-level laser therapy (LLLT) is known to enhance mitochondrial electron transfer and ATP production; thus, this study asked whether LLLT could stimulate the oxidative burst in human neutrophils (PMN) and improve their ability to kill microorganisms. Blood from healthy human subjects was collected and PMN were isolated from the samples. PMN were treated in vitro with 660 nm or 780 nm CW laser light at 40 mW power and increasing energies up to 19.2 J and were subsequently incubated with Candida albicans cells. Generation of hydroxyl radicals, hypochlorite anions and superoxide anions by PMN were checked using fluorescent probes and chemiluminescence assays; a microbicidal activity assay against C. albicans was also performed. LLLT excited PMN to a higher functional profile, which was translated as superior production of reactive oxygen species (ROS) and increased fungicidal capacity. The most efficacious energy was 19.2 J and, interestingly, the 660 nm light was even more efficacious than 780 nm at increasing the respiratory burst of PMN and the fungicidal capacity. Human neutrophils (PMN) were stimulated in vitro with 660 nm or 780 nm CW laser light at 40 mW of power and a total energy of 19.2 J. Low-level laser therapy (LLLT) excited PMN to a higher functional profile, which was translated as a superior production of reactive oxygen species (ROS) such as hydroxyl radicals (HO⢠) and hypochlorite anions (ClO- ) (Figure) and increased fungicidal capacity against Candida albicans cells.
Asunto(s)
Candida albicans , Terapia por Luz de Baja Intensidad , Neutrófilos/efectos de la radiación , Estallido Respiratorio/efectos de la radiación , Humanos , Neutrófilos/inmunología , Especies Reactivas de Oxígeno/metabolismoRESUMEN
Warthin tumor (papillary cystadenoma lymphomatosum) is a benign salivary gland tumor involving almost exclusively the parotid gland. The lip is a very unusual location for this type of tumor, which develops only rarely in minor salivary glands. The case of 42-year-old woman with Warthin tumor arising in minor salivary glands of the upper lip is reported.
Asunto(s)
Adenolinfoma/patología , Neoplasias de los Labios/patología , Adulto , Femenino , HumanosRESUMEN
AIM: The purpose of the present study was to evaluate the correlation between clinical and histopathological diagnoses of periapical inflammatory lesions, focusing mainly on cystic conditions. METHODS: Files dating from 1998 to 2006 at the Oral Pathology Laboratory, School of Dentistry, Alfenas Federal University, Brazil, were reviewed to identify cases with histopathological diagnoses of periapical inflammatory lesions. A total of 1788 files were analyzed, and 255 cases were identified with clinical diagnoses of periapical inflammatory lesions. RESULTS: The most prevalent clinical diagnosis was apical periodontal cyst (59%), followed by periapical granuloma (20%), and dentoalveolar abscess (2%). After histopathological analysis, 53% of the cases represented apical periodontal cyst, 42% periapical granuloma, and 5% dentoalveolar abscess. CONCLUSIONS: The outcomes of the present study show a high prevalence of periapical cysts among periapical inflammatory lesions. Moreover, this study highlights the importance of histopathological evaluation for the correct diagnosis of periapical inflammatory lesions.