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Abstract: To compare the diagnostic accuracy of digital radiography (DR) and cone beam computed tomography (CBCT) in the detection of peri-implant bone defects. Materials and methods: Implants were placed in 5 fresh bovine ribs (3 without peri-implant bone defects, 12 with 1.4mm peri-implant bone defects) and images were taken using (i) portable x-ray system (DEXCOWIN 3000), (ii) intraoral x-ray sensor (SENSOR H1/SENSOR H2), (iii) volume-limited HSCT with 3D Accuitomo 80 (CASTELLINI). Images of each were randomly presented to 10 examiners. Confidence in the diagnosis of the presence or absence of a peri-implant radiolucency was recorded on a scale of bone defect definitely absent, doubts about the defect if absent or present, defect definitely present. Analyzes was performed using a kappa test. Results: There has been a coincidence between the direct digital radiography and the cone beam computed tomography in piece A of 83.3%, in piece B of 100% and in piece C of 88%, giving an average total coincidence 90.43%.Conclusion: Direct digital radiography provided the same results as cone beam computed tomography in the detection of peri-implant bone defects at an early stage. Digital radiographs are a reliable and valid method and perform significantly better than cone beam computed tomography for detecting peri-implant bone defects at an early stage.

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Introducción: La recesión gingival es uno de los defectos estético-funcionales más comunes en la cavidad oral. Se caracteriza por la exposición de la superficie de la raíz debido a un desplazamiento del margen gingival apical a la unión amelocementaria. La literatura reporta un porcentaje de recubrimiento de la raíz favorable en recesiones gingivales clases I y II de Miller; sin embargo, varios estudios no lograron el recubrimiento total, lo que ha sido asociado a varios factores. Objetivo: Identificar los factores asociados al recubrimiento total de recesiones gingivales clases I y II de Miller en dientes tratados con colgajo de reposición coronal. Métodos: Se consultaron las bases de datos PubMed SciELO, Redalyc, Lilacs y Scopus. De 105 investigaciones, se analizaron 7 que cumplieron los criterios de inclusión. Análisis e integración de las informaciones: El metaanálisis dio resultados no concluyentes, debido a la alta heterogeneidad de los estudios. Sin embargo, se detectaron los siguientes factores: el uso de ácido etilendiaminotetraacético (p < 0,0001), la presencia de tejido queratinizado adjunto ≥ 2 mm (p = 0,019), una profundidad de recesión gingival inicial > 3 mm (p = 0,020) y pacientes que fumaban más de 10 cigarrillos diarios (p < 0,05). Conclusiones: Se identificaron el uso de ácido etilendiaminotetracético, la presencia de tejido queratinizado, la profundidad de la recesión y pacientes fumadores como posibles factores que intervienen el recubrimiento total de recesiones gingivales clases I y II de Miller en dientes tratados con colgajo de reposición coronal(AU)

Introduction: Gingival recession is one of the most common esthetic-functional defects of the oral cavity. It is characterized by exposure of the root surface due to displacement of the apical gingival margin to the cementoenamel junction. The literature about the topic reports a percentage of favorable root coverage of Miller class I and II gingival recessions. However, several studies do not report complete coverage, which has been associated to a number of factors. Objective: Identify the factors associated to complete coverage of Miller class I and II gingival recessions in teeth treated with coronally repositioned flap. Methods: A search was conducted in the databases PubMed, SciELO, Redalyc, Lilacs and Scopus. Of a total 105 studies retrieved, seven met the inclusion criteria. Data analysis and integration: The meta-analysis did not achieve conclusive results, due to the high heterogeneity of the studies. However, the following factors were identified: use of ethylenediaminetetraacetic acid (p < 0.0001), presence of adjacent keratinized tissue ≥ 2 mm (p = 0.019), initial gingival recession depth > 3 mm (p = 0.020) and patients who smoked more than 10 cigarettes a day (p < 0.05). Conclusions: Use of ethylenediaminetetraacetic acid, presence of keratinized tissue, recession depth and smoker patients were identified as possible factors involved in the complete coverage Miller class I and II gingival recessions in teeth treated with coronally repositioned flap(AU)

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With the spread of coronavirus disease 2019 (COVID-19), strict isolation strategies to limit virus transmission have been applied worldwide. The lockdown has affected and challenged different medical areas. Doctors, nurses, dentists, and other health care workers are concerned about contagion, not only for themselves, but also for their families and colleagues. Furthermore, the oral mucosa has been accepted as a high-risk route of transmission for COVID-19. In many countries, dentists have been forced to stop working during quarantine until further notification. Isolation and its financial impact have produced physical and psychological pressure, depression, social anxiety, and other mental health concerns. This article aims to provide a comprehensive review of the consequences of past epidemics on mental health and to assess possible aspects that might be associated with mental implications in dentists during the COVID-19 pandemic. Finally, some concrete actions to avoid subsequent potential consequences are recommended.

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RESUMEN La elevación de piso de seno maxilar ha sido sumamente documentada en implantología como una técnica segura y predecible en el procedimiento de ganancia vertical ósea, en el maxilar posterior atrófico. Sin embargo, conjuntamente se han reportado complicaciones en este procedimiento, las cuales podrían poner en peligro los resultados de la regeneración, y por consiguiente la colocación del implante. El propósito de esta revisión de literatura es exponer y analizar diferentes complicaciones que pueden presentarse en la elevación de piso de seno maxilar.

ABSTRACT Maxillary sinus floor elevation has been extensively documented as a safe and predictable procedure for gaining vertical bone height in the atrophic posterior maxilla. Even though, complications have been reported, which can potentially jeopardize the outcome of the regeneration and implant therapy. Therefore, the purpose of this literature review is to present, debate and analyze the different complications that can occur during a sinus floor elevation.

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OBJECTIVES: Patients are mask-free during dental attention. In addition, dentists and dental staff after working for hours need to hydrate or eat. Removing the mask makes them vulnerable to the risk of contamination. For those cases, a prophylactic decontamination protocol could be useful as an adjunct to the most recommended biosecurity protocols. This article aims to provide a comprehensive review of the published evidence about the use of povidone-iodine (PVP-I) against SARS-CoV-2 and to propose a prophylactic protocol for dental attention using PVP-I during the COVID-19 pandemic. MATERIALS AND METHODS: An electronic search in Medline via PubMed, Scopus, Cochrane Library and Scielo databases was performed up to July 24, 2020, to identify relevant literature focusing on Povidone Iodine, SARS-CoV-2, COVID-19, SARS-COV, MERS, antiviral mouthwashes, and oral cavity. RESULTS: Clinical studies on the virucidal effectiveness of PVP-I against SARS-CoV-2 have not yet been reported. We identify a recent in vitro study showing PVP-I effectiveness at 0.5, 1, and 1.5% within 15s of contact. Moreover, another in vitro study has shown ≥99.99% virucidal activity as 1% mouthwash and 0.45% throat spray. The only study in SARS-CoV-2 confirmed patients reported a significant 3h drop in viral load after rinsing with 15 mL of 1% PVP-I for 1min. CONCLUSIONS: Although no clinical trials have reported the efficacy of PVP-I on SARS-CoV-2, recent studies in patients with positive PCR to SARS-CoV-2 found a significant 3-h drop in viral load. We believe that an oral prophylactic protocol with PVP-I for dental healthcare workers and patients as an adjunct to the current biosecurity protocol could minimize the transmission risk during COVID-19 pandemic.

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RESUMEN: La emergencia sanitaria mundial, originada debido a la Pandemia del Covid -19, ha modificado nuestras costumbres y ha desnudado las carencias de un fragmentado sistema de salud en latinoamérica. Es crucial en estos momentos, para preservar la odontología y el bienestar de los pacientes, que a través de los ministerios de salud y colegios profesionales se tomen medidas de emergencia para ayudar al odontólogo con los altos costos de mantener la seguridad del personal y la de los pacientes en su práctica profesional.

ABSTRACT: The worlwide sanitary emergency caused by the Covid-19 Pandemy, has modified our costums and has showed big deficiencies in the latinoamerican health system. At present time, is crucial for the dentistry field and patients, that through the goverment Health Ministeries and Professionals organisms, emergency meausures be taken to help the dentist with the high cost of keeping the security of his personnel and patients in the dental practice during this pandemy.

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La rehabilitación con implantes dentales es un tratamiento ya común en estos tiempos. Este tratamiento es considerado costoso, y requiere también de inversión de tiempo de parte del paciente/odontólogo tratante. Si el paciente presenta las condiciones ideales, el tiempo requerido desde la colocación del implante hasta su rehabilitación puede variar entre 2 a 6 meses; pudiendo este tiempo prolongarse, si el paciente requiere procedimientos quirúrgicos previos o conjuntamente a la colocación del implante. A pesar de la creciente aceptación y éxito de la rehabilitación con implantes dentales, se han reportado diversas complicaciones. Entre estas, la periimplantitis es cada vez mas frecuente, y a pesar de eso, es una enfermedad para la cual aún no se ha encontrado una cura 100% efectiva, conllevando muchas veces a la pérdida del implante dental. La periimplantitis es una enfermedad con una prevalencia, según la literatura, de 10% en implantes y 20% en pacientes, y que se espera aumente su ocurrencia a la par como va aumentando la frecuencia de las rehabilitaciones con implantes dentales. No se ha encontrado aún una causa específica para esta enfermedad, por lo que se han definido según varios estudios factores e indicadores de riesgo con la finalidad de prevenirla y tratarla tempranamente. Es por eso que esta revisión de literatura busca informar sobre cuáles son los factores e indicadores de riesgo conocidos actualmente para la periimplantitis. (AU)

Nowadays rehabilitation with dental implants is a common treatment. This treatment is considered expensive, and also requires investment of time from the patient / dentist. If the patient presents ideal conditions, the required treatment time can vary between 2 to 6 months. This time may be extended if the patient requires prior procedures before or with the implant placement. Many complications have been reported with dental implants rehabilitation. Between these, Periimplantitis has increase its appeareance in the last years. However, a cure 100% effective for this has not be found yet and therefore, often leads to the loss of the dental implant.The periimplantitis is a disease with a prevalence according to the literature up to 20% among patients with dental implants and is expected to increase its occurrence. The specific cause of this disease has not be yet defined. That is the reason why several risk factors and risk indicators has been studied in order to prevent it and treat it early. This literature review aims to show what factors and risk indicators are currently known for periimplantitis. (AU)

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Los dientes con restauraciones subgingivales y zonas estrechas de encía queratinizada tienen puntajes altos de inflamación gingival superiores a los dientes con restauraciones similares y áreas de encía insertada ancha. En tales casos, las técnicas de aumento de encía insertada se consideran como técnicas quirúrgicas periodontales preprotesicas; teniendo como objetivos : mejorar la eliminación de la placa alrededor del margen gingival, mejorar la cosmética y reducir la inflamación que circunda a los dientes restaurados Estudios han demostrado buenos resultados y predictibilidad de los injertos de tejido conectivo subepitelial (TCSE) en zonas donde se requiere el aumento de encía queratinizada, logrando ganar de 3 mm de grosor a 3 mm de altura. La toma de un injerto palatino de adecuadas dimensiones, sin embargo, puede complicarse dependiendo de las variaciones anatómicas en tamaño y forma del paladar; o el caso de paladares sometidos previamente a otro tipo de intervenciones. Estas características no ideales pueden dificultar la técnica quirúrgica y crear complicaciones en el sitio donador. Se han descrito varias técnicas para recolectar el injerto de la zona donadora, pero todas ellas en paladares sin previas intervenciones quirúrgicas. El siguiente reporte de caso tiene como finalidad sugerir el uso de la técnica Bosco - Días en este tipo de pacientes. La variación que esta técnica ofrece es la de reposicionar en la zona donadora el epitelio cuidadosamente retirado del injerto obtenido. El objetivo es facilitar la obtención del injerto en tejidos palatinos, además de favorecer la cicatrización y disminución de molestias en el sitio donador.

Teeth with restorations subgingivales and areas close gum queratinizada have high scores higher gingival inflammation of the teeth with restorations and similar areas gum inserted wide. In such cases, the techniques of increased gum inserted regarded as preprotesicas periodontal surgical techniques, with the following objectives: improve the removal of plaque around the gingival margin, improved cosmetics and reduce inflammation around the teeth restored Studies have shown good results and predictability of the connective tissue grafts subepithelial (TCSE) in areas where it requires increased queratinizada gum, making winning 3 mm thickness 3 mm in height. Taking a graft palatal appropriate size, however, may be complicated depending on the anatomical variations in size and shape of the palate, or if palates previously subjected to other interventions. These features not ideal can impede the surgical technique and create complications in the donor site. Several techniques have been described to collect the donor graft in the area, but all of them palates without prior surgery. Following a case report is intended to suggest the use of technical Bosco Dias in these patients. Variation that this technique offers is the repositioning in the area donor epithelium carefully removed graft obtained. The aim is to facilitate the procurement graft in palatal tissue, in addition to supporting Healing and decreased discomfort at the donor site.

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