The aim of the present study was to analyze the prevalence of nonsyndromic oral clefts in children receiving treatment at the Center for the Rehabilitation of Craniofacial Anomalies, José do Rosário Vellano University, Alfenas, MG, Brazil. All the data for the epidemiological study was retrieved from the files of 126 pediatric patients with oral clefts without any additional malformation, who came to the center for treatment between 2000 and 2005. A predominance of clefts was observed in Caucasians, and the ratio of male to female was 1.3. Males were 2.57 times more affected by cleft lip and palate (CLP) than females. CLP with a prevalence of 39.68% and isolated cleft lip (CL) with a prevalence of 38.09% were the most common anomalies, followed by isolated cleft palate (CP; 22.23%). Complete and unilateral CLP (26.19%) presented the highest prevalence, followed by incomplete and unilateral CL (23.81%). The present study presents the experience of a reference hospital in the state of Minas Gerais; however, the real prevalence of oral clefts in Brazil is still unknown. Our findings differ from those of a few previous Brazilian reports because they suggest similar prevalences of CLP and CL, and a higher prevalence of CLP in Caucasian males.

Objective : To compare the caries experience of adolescents and young adults with cleft lip and/or palate (CL/P) with a noncleft control group. Design : Thirty CL/P subjects and 30 controls were clinically examined to obtain the decayed, missing and filled teeth (DMFT) and the decayed, missing and filled surfaces (DMFS) indices, gingival bleeding index, plaque index, and active caries lesions. Data concerning oral hygiene, access to fluoridated water, mother's education level, and family income were also collected. Setting : Pro-Smile Center, a reference center for the treatment of facial deformities, Alfenas, Minas Gerais, Brazil. Subjects : Subjects aged 12 to 21 years with CL/P and without associated syndromes were matched to noncleft controls by sex, age, living habits, and use of orthodontic devices. Null Hypothesis Formulated Prior to Data Collection : Caries experience in CL/P adolescents and young adults is similar to that observed in noncleft controls. Statistical Analysis : Data were analyzed using SPSS 17.0 software for Windows Data Editor. The CL/P and control groups were compared using the McNemar test, paired t test and Wilcoxon test. A significance level of 5% was adopted for all tests. Results : There were no significant differences between the groups for oral hygiene and contact with fluoride. Significant differences were found in per capita income, presence of active caries, decayed surfaces, plaque index, and gingival bleeding. Conclusions : The caries experience of CL/P subjects was higher than that of the noncleft individuals.

, Cláudia Silami de MAGALHÃES 5 Objetivo: Avaliar aspectos relacionados ao uso de dentes humanos extraídos nos cursos de graduação e pós-graduação do Brasil e a existência de Banco de Dentes Humanos (BDH) nas Instituições de Ensino Superior (IES) em Odontologia. Método: Foi realizado um estudo transversal, por meio de um questionário semiestruturado enviado, via endereço eletrônico, aos Coordenadores e/ou Diretores dos Cursos de Odontologia cadastrados no Ministério da Educação (MEC). Após envio do questionário, no caso da não-resposta após três tentativas, o instrumento impresso foi enviado às IES pelo correio. O instrumento foi testado por um coordenador de um curso de Odontologia de uma instituição diferente daquela na qual o projeto foi desenvolvido, para verificação de problemas de entendimento e formatação. Os dados foram analisados por meio da estatística descritiva (distribuições absolutas e percentuais). Resultados: Das 187 instituições localizadas junto ao MEC, 57 (30,48%) responderam. Os dentes humanos são utilizados para treinamento em 55 IES (96,5%): (87,70% em Endodontia; 63,20% em Dentística; 56,10% em Prótese, 47,40% em Anatomia Dental e 5,30% em Periodontia). A Endodontia é a disciplina que utiliza maior número de dentes (1.299 dentes/semestre). Em 42% das IES, os dentes foram fornecidos pelo BDH; em 44% pelos alunos; em 12% por ambos. O BDH foi também a principal fonte de dentes humanos para pesquisa para 64,3% de 46 IES (19.570 dentes/ano). Das 50 IES com cursos de Pós-graduação, 21 relataram utilizar dentes extraídos. Declararam conhecer a origem dos dentes 44 instituições e oito utilizam termo de doação, quando o dente não é proveniente do BDH. Possuem BDH 37 (64,91%) IES com 3,1±2,5 anos de existência. O BDH foi considerado autossuficiente em 16 delas. Conclusão: Embora o uso de dentes extraídos seja frequente no ensino e na pesquisa, nas diferentes áreas da Odontologia, a existência de BDH é fenômeno recente e incompletamente difundido nas IES.Dente; Instituições de Ensino Superior; Pesquisa em Odontologia; Ética odontológica; Comitês de Ética em Pesquisa.Objective: The purpose of this study was to evaluate aspects related to the use of extracted human teeth in Brazilian undergraduate and graduate dental courses and the existence of a Human Tooth Bank (HTB) at the higher education institutions. Method: A semi-structured questionnaire was sent by e-mail to the coordinators and/or directors of dental courses registered with the Ministry of Education (MEC). In case of no response after three attempts, the questionnaire was sent to the institutions by mail. To check if there were understanding and formatting problems, the questionnaire was tested by a coordinator from a different institution from the one where it was designed. The data were analyzed and reported descriptively. Results: Out of the 187 institutions listed by MEC, 57 (30.48%) responded. Human teeth are used for training in 55 (96.5%) institutions (87.70% in endodontics; 63.20% in dentistry, in prosthodontics 56.10%, 47.40%...

This study determined the validity of marginal ditching and staining as criteria for the diagnosis of secondary caries around amalgam restorations. One hundred and twenty-four Class I amalgam restorations on extracted human teeth were submitted to standardized clinical examinations. A calibrated examiner recorded the presence of ditching in the tooth/restoration interface, the occurrence of bluish-grey staining on the occlusal surface, and their relationship with the presence and severity of secondary carious lesions. Examinations were repeated after 4 days to calculate the intra-examiner reliability. Stereomicroscopic inspection of the serial tooth sections was used as the gold-standard. Six teeth were lost during the study. Of the 118 remaining teeth, 19 (16%) showed occlusal bluish-grey staining and 26 showed more than 0.20 mm wide marginal ditches. Of the latter, 14 presented narrow ditches (0.20-0.45 mm), while 12 presented wide ditches (0.45 mm). The evaluation criteria presented low sensitivity and positive predictive values. Positive and negative likelihood ratios showed that the criteria exhibited, indistinctly, the same odds to determine a positive or negative result for a diseased or healthy tooth. It was concluded that marginal ditching and staining were not valid criteria for the diagnosis of secondary caries around occlusal amalgam restorations.

No abstract