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Background: To evaluate the efficacy of intra-alveolar administration of dexamethasone 4 mg in the control of edema, trismus, and pain resulting from the extraction of impacted lower third molars and the drug permeability through the oral mucosa by in silico prediction. Material and Methods: The randomized, double-blind, split-mouth clinical trial included patients who had both impacted lower third molars in equivalent positions. Hemiarches were divided into control side when dexamethasone was administered orally and experimental side when dexamethasone was administered using the intra-alveolar route. Patients were evaluated considering edema, trismus, and pain. The permeability of dexamethasone through the oral mucosa was assessed by in silico prediction. Students t-test was selected for comparative analysis of edema and trismus, and the chi-square test analyzed the distribution of postoperative pain between the sides. Results: There were no significant differences between the routes of administration in measuring symptoms between the pre and postoperative times (p>0.05). In silico prediction suggested that dexamethasone molecular characteristics facilitate intra-alveolar administration. Conclusions: Intra-alveolar administration had similar efficacy to oral administration in controlling symptoms of post-surgical inflammation of impacted lower third molars.(AU)
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Humanos , Edema/etiología , Edema/prevención & control , Tercer Molar/cirugía , Dolor Postoperatorio/prevención & control , Dolor Postoperatorio/terapia , Diente Impactado , Trismo/etiología , Trismo/prevención & control , Humanos , DexametasonaRESUMEN
Aim: To histologically evaluate dental follicles of impacted third molars with no radiographic evidence of pathology. Methods: We carried out both a quantitative and qualitative analysis of pericoronal follicles removed from impacted third molars and investigated the association with clinical data. The sample included 36 extracted dental follicles of impacted third molars, obtained from 28 patients, which presented with no radiographic evidence of pathologies. Results: None of the follicles analyzed showed any pathological entity. The epithelial lining was observed in 61.1% of samples, being identified as reduced enamel epithelium. We found a significant relation between the the presence of inflammatory infiltrate and the group aged over 21 years (64.3%; p<0.05). Conclusions: Considering the absence of pathological lesions, we suggest that impacted third molars should only be extracted in young-aged individuals due to specific pathologies or indications
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Humanos , Masculino , Femenino , Patología Bucal , Diente Impactado , Saco Dental , Tercer MolarRESUMEN
Aim: To investigate the distribution of odontogenic cysts in patients aged 0 to 18, referred toDepartment of Pathology, University Hospital of the Federal University of Maranhão, Brazil, todetermine the most common types of lesions and their distribution according to gender and anatomicalsite involved. Methods: Histopathological data were collected from a database of lesions classifiedas odontogenic cysts that were indicated for surgical removal and histopathological analysis. Datawere subjected to descriptive analysis. Results: Thirty cases of odontogenic cysts were identified,and dentigerous cysts were the most frequent (n=17). Most occurrences were in males (66.7%)and the most frequent site was the posterior mandible (73.3%). Conclusions: Odontogenic cystsin children and adolescents are mostly developmental cysts, especially dentigerous cysts, occurringpredominantly in males, with a predilection for the posterior mandible.
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Adolescente , Niño , Quistes OdontogénicosRESUMEN
Objetivo: avaliar a resistência de união às forças de cisalhamento de dois sistemas adesivos, um convencional e um autocondicionante, em esmalte de dente bovino. Métodos: trinta e duas placas de esmalte bovino (16mm2) foram confeccionadas e divididas aleatoriamente, em dois grupos experimentais (n=16): G1-adesivo convencional Magic Bond (Vigodent) e G2- adesivo autocondicionante AdheSE DC Activator (Ivoclar Vivadent). A área de adesão foi delimitada em 4mm de diâmetro, e o sistema adesivo, aplicado de acordo com as recomendações do fabricante. Em seguida, um de cilindro de resina composta de 2x2mm (diâmetro x altura) foi confeccionado por placa. As amostras foram armazenadas em soro fisiológico por 2 dias, VG a 37°C e submetidas a ensaio mecânico de resistência de união ao cisalhamento (0,5mm/min - TIRAtest 2420). Foi utilizada estatística descritiva e teste t de Student (5%). Resultados: o adesivo Magic Bond (11,2 ± 1,9) apresentou maior média de resistência de união que o adesivo AdheSE DC Activator (4,4 ± 1,5). Conclusão: os dados sugerem que a resistência de união ao esmalte bovino é maior nos sistemas adesivos convencionais que nos autocondicionantes.
Objective: This study evaluated the shear bond strength of two adhesive systems, one etch-and-rinse adhesive and one self-etching adhesive, in bovine tooth enamel. Methods: Thirty-two plates of bovine enamel (16mm2) were fabricated and randomly divided into two experimental groups (n=16): G1- etch-and-rinse adhesive Magic Bond (Vigodent) and G2- self-etching adhesive AdheSE DC Activator (Ivoclar Vivadent). The adhesion area was enclosed in 4mm of diameter and adhesive system applied according to the manufacturer's recommendations. Then a cylinder of composite resin (2mm diameter x 2mm height) was made by the plate. The samples were stored in saline solution for 2 days at 37°C and subjected to mechanical testing of shear bond strength (0,5mm/min - TIRAtest 2420). Was used descriptive statistics and Student's t test (5%). Results: Magic Bond (11.2 ± 1.9) showed higher mean strength than AdheSE DC Activator (4.4 ± 1.5). Conclusion: The data suggest that the bond strength to bovine enamel is higher in etch-and-rinse adhesives than in self-etching adhesives.
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Introdução: As restaurações proximais ainda representam um desafio na prática da Odontologia Restauradora. Margens com excesso de material são frequentemente observadas, favorecendo o acúmulo de placa na região e interferindo na manutenção de uma gengiva saudável. Objetivo: O objetivo deste trabalho foi verificar as alterações gengivais em áreas de restaurações classe II com excesso de material restaurador bem como detectar a prevalência de restaurações classe II com excessos de material restaurador em duas Clínicas do Curso de Odontologia da Universidade Federal do Maranhão. Materiais e Métodos: Foram selecionados 20 pacientes por meio de exame clínico e radiográfico, nos quais foram analisados excessos de material restaurador, profundidade clínica de sondagem e sangramento gengival nas áreas adjacentes às restaurações proximais. Resultados: Foram encontradas 55 superfícies proximais restauradas com amálgama ou resina composta, as quais demonstraram um número relativamente alto de superfícies com excessos (50,9%), aumento da profundidade clínica de sondagem e presença de sangramento gengival nas áreas adjacentes a essas restaurações. Conclusões: Os autores concluíram que os excessos de material restaurador representam danos aos tecidos gengivais, estando diretamente relacionados ao aumento da profundidade de sondagem e sangramento gengival.
Introduction: The proximal restorations still represent a challenge in the practice of restorative dentistry. Overhanging restorations are frequently observed, favoring the accumulation of plaque in the region and may interfere in the maintenance of healthy gums. Objective:The aim of this study was to detect the prevalence of overhanging class II restorations and the relationship with gingival alterations in two Dental Clinics at the School of Dentistry of Federal University of Maranhão. Materials and Methods: Twenty patients were assessed by clinical and radiographic examination in order to observe overhanging restorations, probing pocket depth and gingival bleeding in the areas adjacent to the proximal restorations. Results: There were found 55 proximal surfaces restored with amalgam or composite resin which showed a relatively high number of overhanging surfaces (50,9%), increased probing pocket depth and presence of gingival bleeding in the adjacent areas to the restorations. Conclusions: Authors had concluded that overhanging restorative material represents damage to gingival tissues, being directly related to increased periodontal pocket depth and gingival bleeding.
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O cisto dentígero é o cisto odontogênico mais frequente e está normalmente associado com um dente permanente normal não erupcionado. O presente artigo relata caso clínico de paciente infantil de sete anos de idade com presença de cisto dentígero extenso na mandíbula do lado direito, envolvendo os germes do canino e dos prémolares (43, 44 e 45). A opção de tratamento, de acordo com as características das lesões, a idade paciente e o número de dentes acometidos, foi a marsupialização e o acompanhamento clínico e radiográfico, a fim de evitar uma fragilização da mandíbula e permitir a conservação e a erupção dos dentes permanentes envolvidos noprocesso. Após um ano de acompanhamento, observou-se radiograficamente uma regressão do cisto e uma discretamovimentação dos germes, e após dois anos constatou-se clinicamente a presença dos dentes na cavidade oral. Dessa forma, conclui-se que o tratamento escolhido apresentou sucesso.
The dentigerous cyst is the most common odontogenic cyst and it is normally associated with a non erupted permanent tooth. This article is a clinical case report of a 7 year old patient with an extended mandible dentigerous cyst on the right side involving the canine and bicuspids germs (43, 44 and 45). The treatment of choice, according to the lesion?s characteristics, patient age and number of teeth affected, was marsupialization and the clinical and radiographic follow-up in order to avoid a weakening of the jaw and allow the preservation and eruption of the permanent teeth involved in the process. After a year of follow up, there was a radiographic regression of the cyst and a slight movement of the germs and, after two years, it was found clinically the presence of those teeth in the oral cavity. Thus, we conclude that the chosen treatment was successful.
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Humanos , Femenino , Niño , Diente Impactado , Quiste Dentígero , Dentición Mixta , MandíbulaRESUMEN
Os pacientes com transtornos de coagulação sanguínea constituem um grupo que requer atenção e cuidados especiais na prática odontológica. A hemofilia e a doença de von Willebrand são as mais comuns das coagulopatias hereditárias e devem ser detectadas antes que qualquer tratamento odontológico seja realizado. Uma boa anamnese, associada a um bom exame físico e bucal podem ajudar na detecção dessas patologias. O cirurgião-dentista deve estar preparado para oferecer o tratamento adequado a esses pacientes, o qual depende da severidade da doença e do tipo de procedimento a ser realizado. Procedimentos menos invasivos geralmente não necessitam de cuidados especiais e podem ser realizados rotineiramente, desde que alguns cuidados básicos sejam tomados. Cirurgias e técnicas anestésicas de bloqueio do nervo alveolar inferior devem ser realizadas com maior precaução, a fim de minimizar os riscos de sangramento e outras complicações. O hematologista deve ser consultado sempre que qualquer tratamento invasivo for planejado.