Dye-enhanced laser fluorescence detection on natural caries lesions in primary teeth

Objective: This study aimed to investigate the association of two fluorescent dyes and Laser Fluorescence (LF) device in detecting smooth and occlusal natural caries in primary teeth in vitro.Methods: Measurements were performed with the LF and with LF associated with tetrakis (N-methylpyridyl)porphyrin (LF TMPyP) and protoporphyrin IX (LF PPIX) in 72 smooth (63 primary molars) and 134 occlusal sites (81 primary molars). For validation, surfaces were sectioned and sections obtained were evaluated under stereomicroscope. Smooth surfaces were also evaluated using polarized light microscopy and Knoop microhardness. For both smooth and occlusal surfaces, ROC analyses were performed, and sensitivities, specificities and accuracies were assessed. In smooth surfaces, Pearson’s correlation coefficients between LF values and lesions hardness or lesions depth were calculated.Results: LF TMPyP presented higher correlation with hardness and lesion depth than other methods in smooth surfaces. No differences were observed in other parameters among the methods, in both smooth and occlusal surfaces.Relevance: The LF TMPyP might improve performance in quantifying smooth-surface caries lesions in primary teeth. However, the sensitivity is improved at D2 (caries extending into inner half of the enamel but not to amelodentinal junction) threshold when using PPIX in smooth caries lesions. The association of LF with fluorescent dyes does not improve the performance on occlusal caries

Bonding of permanent tooth fracture without pulp exposure: a case report

Dental trauma is a serious oral health problem which is prevalent in the population, especially in children with protrusion of the maxillary incisors. Enamel and dentin combined fractures are the most prevalent among permanent tooth fractures. Bonding of the fractured tooth is described as an alternative therapy for fractured teeth; however, it involves factors that infl uence treatment success: the existence of the tooth remainder, the time elapsed between trauma and treatment, the involvement of enamel, dentin and pulp chamber, and the bonding technique. This study was conducted in the undergraduate clinic of the Discipline of Pediatric Dentistry, School of Dentistry, University of Sao Paulo, and describes a simplifi ed bonding technique applied to a combined enamel and dentin fracture of a right maxillary central incisor, without pulp involvement, in a nine-year-old male child. The importance of patient management, proper indication, therapy limitations, prognosis and follow-up are also discussed in this study.O traumatismo dentário é um problema de saúde pública bucal altamente prevalente na população, sobretudo em crianças com maxilas prognatas. As fraturas conjugadas de esmalte e dentina são as mais predominantes dentre as fraturas de dentes permanentes. A colagem dentária é uma alternativa terapêutica para dentes fraturados. Entretanto, envolve fatores que influenciam no sucesso do tratamento: existência do remanescente dentário, tempo de espera para o tratamento, envolvimento de esmalte, dentina e câmara pulpar e a técnica de colagem. Este trabalho descreve uma técnica simplificada de colagem do dente 11 de uma criança de 9 anos do sexo masculino com fratura de esmalte e dentina sem envolvimento pulpar da clínica de graduação da Disciplina de Odontopediatria da Faculdade de Odontologia da Universidade de São Paulo. A importância do manejo do paciente, a indicação, a limitação e o prognóstico dessa alternativa terapêutica também são assuntos discutidos neste estudo

Colagem de dente permanente com fratura sem exposição pulpar: relato de caso clínico

O traumatismo dentário é um problema de saúde pública bucal altamente prevalente na população, sobretudo em crianças com maxilas prognatas. As fraturas conjugadas de esmalte e dentina são as mais predominantes dentre as fraturas de dentes permanentes. A colagem dentária é uma alternativa terapêutica para dentes fraturados. Entretanto, envolve fatores que influenciam no sucesso do tratamento: existência do remanescente dentário, tempo de espera para o tratamento, envolvimento de esmalte, dentina e câmara pulpar e a técnica de colagem. Este trabalho descreve uma técnica simplificada de colagem do dente 11 de uma criança de 9 anos do sexo masculino com fratura de esmalte e dentina sem envolvimento pulpar da clínica de graduação da Disciplina de Odontopediatria da Faculdade de Odontologia da Universidade de São Paulo. A importância do manejo do paciente, a indicação, a limitação e o prognóstico dessa alternativa terapêutica também são assuntos discutidos neste estudo.Dental trauma is a serious oral health problem which is prevalent in the population, especially in children with protrusion of the maxillary incisors. Enamel and dentin combined fractures are the most prevalent among permanent tooth fractures. Bonding of the fractured tooth is described as an alternative therapy for fractured teeth; however, it involves factors that infl uence treatment success: the existence of the tooth remainder, the time elapsed between trauma and treatment, the involvement of enamel, dentin and pulp chamber, and the bonding technique. This study was conducted in the undergraduate clinic of the Discipline of Pediatric Dentistry, School of Dentistry, University of Sao Paulo, and describes a simplifi ed bonding technique applied to a combined enamel and dentin fracture of a right maxillary central incisor, without pulp involvement, in a nine-year-old male child. The importance of patient management, proper indication, therapy limitations, prognosis and follow-up are also discussed in this study