Eymar Sampaio Lopes

Anatomic variations of lower first permanent molar roots in two ethnic groups

Abstract In a roentgenographic study of 655 children of European and Japanese descent, it was found that supplementary molar roots occurred much more frequently among Japanese descendants.

Prevalência de cárie dentária em crianças da faixa etária de 0 a 6 anos matriculadas em creches: importância de fatores socioeconômicos

Foi avaliada a prevalencia de carie na denticao decidua de criancas entre 0 e 6 anos, matriculadas em creches dos Municipios de Bauru e Sao Paulo, SP (Brasil). O primeiro grupo (Bauru) nao recebia cuidados sistematizados de saude na instituicao e o segundo (Sao Paulo) apresentava uma rotina de cuidados como norma institucional. Foram analisadas as variaveis relativas aos modos de viver desses grupos populacionais e sua associacao com a ocorrencia de carie, efetuando um estudo de caso para caracterizacao de fatores coletivos de risco a carie. Atraves de analise de regressao multipla, verificou-se a influencia da idade e frequencia de consultas odontologicas sobre a prevalencia de carie na amostra estudada (p<0,05). Na faixa etaria de 5-6 anos, 23,3% das criancas de Bauru e 9,3% de Sao Paulo estavam isentas de carie, contra a expectativa de 50% prevista na Meta n.o 1 da Organizacao Mundial da Saude para o ano 2000. A prevalencia de carie foi mais elevada em Bauru nas criancas de 3-4 e 5-6 anos, apresentando significância estatistica apenas para o grupo 3-4 anos (p<0,05). Nao foram observadas diferencas estatisticamente significantes entre os sexos quanto a ocorrencia de carie.Oral health condition in samples of children from zero to six years old, examined in day nurseries for children from Bauru and S. Paulo County (Brazil) by the caries indicator in primary dentition-dmfs, is assessed. The first group did not receive oral health care where any as the second group received the standard oral care provided by the institution. Variables related to way of life and their relationship to the presence of caries were evaluated. Multiple regression analysis showed a statistically significant association of age and frequency of dental visits with the prevalence of dental caries (p < 0.05). The data also showed that 23.3% of the children from Bauru, and 9.3% of those from S. Paulo were free of caries, numbers that are very far from the 50% proposed by WHO for the year 2000. The overall prevalence of dental caries was greater for the Bauru group than for the S. Paulo group; however, statistical significance was only found in the 3-4 age-group (p < 0.05). Sex differences in the occurrence of dental caries were not statistically significant.

Percepção de fala dos deficientes auditivos usando aparelho de amplificação com algoritmo de redução de ruído

UNLABELLED Often, individuals with hearing loss have difficulties understanding speech in noisy environments. AIM It was the aim of this study to assess the performance of adult individuals with sensorineural hearing loss, associated with speech perception using digital hearing aids with a sound reduction algorithm called Speech Sensitive Processing, on and off, in the presence of noise. MATERIALS AND METHODS This case study was performed with 32 individuals with sensorineural hearing loss of mild, moderate or mild to moderate level. Our evaluation involved a speech perception test, where we investigated the recognition of sentences in noise, in order to get a signal/noise ratio, with a digital hearing aid. Result DESCRIPTION The algorithm provided a benefit for most hearing impaired individuals, in the investigation of signal/noise ratio and the results pointed to a statistically significant difference when the algorithm was on, compared to when the algorithm was off. CONCLUSION The use of a sound reduction algorithm must be considered as a clinical alternative - since we observed an efficacy in noise reduction and heightened speech perception.

The accuracy of soldering investment.

Testing soldering investments of different thermal expansions established that an acceptable dimensional change in a three-unit fixed partial denture occurs with an investment which expands at 0.70% to 0.72%.

Condições de saúde bucal e diabetes mellitus na população nipo-brasileira de Bauru-SP

The aim of this cross-sectional study was to determine the oral health condition in a Japanese population aged 40 to 79, in Bauru, Brazil as well as its association with the occurrence of diabetes mellitus and impaired glucose tolerance. It involved 530 subjects, from both sexes. All persons of first generation (Issei) and a random sample of one third of second generation (Nisei) were submitted to a home interview. A clinical examination, oral glucose tolerance test, and examination of oral health conditions took place at the Hospital of Rehabilitation of Craniofacial Anomaly - USP. The data were processed by Epi-Info program and 22.9% of the individuals presented diabetes mellitus (group I), 15.1% impaired glucose tolerance (group II), and 61.9% were considered normoglycemics (group III). The percentage of edentulous subjects was 45.9% for the total sample, and values of 58.4%, 46.7%, and 41.2% were observed for groups I, II, and III, respectively. Among the edentulous subjects, no one showed necessity of making a total prothesis. These data indicate that tooth loss showed significant association with the occurrence of diabetes mellitus, but there was no significant association with glucose intolerance.

Influence of axiopulpal line angle and proximal retention on fracture strength of amalgam restorations

Proximal retentive grooves significantly increase the strength of amalgam restorations in Class II cavities. There were no remarkable differences that could have clinical significance between sharp or rounded axiopulpal line angles and rounded or rounded and sloped pulpal walls. Chromium-cobalt dies are effective for tests of fracture strength of amalgam restorations.