Association of infantile bruxism and the terminal relationships of the primary second molars

The aim of this study was to analyze the association between infantile bruxism and the terminal relationships of the primary second molars. A total of 937 pre-school children (both genders), aged from 2 to 6 years, from municipal schools in São Paulo were evaluated. In this study, a questionnaire considering the bruxism habit and the presence of headaches and/or restless sleep was answered by the parents/guardians. A clinical exam of occlusion in the anteroposterior direction (vertical plane - VP, mesial step - MS and distal step - DS) was performed by the examiners in the school environment. Student's t test, Fisher's test and a logistic regression test were applied for the statistical analysis at a significance level of 5%. The prevalence of the bruxism habit was 29.3% among the total sample. Because there was no significant difference between the sides evaluated, the left side was taken as the standard. Among those children with bruxism, 25.7% presented a mesial step terminal relationship at the primary second molars, 29.1% had DS, and 30.2% had VP. Regarding the association of the parafunctional habit with the type of terminal relationship, no significant results were found. Children who slept restlessly or suffered from headaches were verified to show a higher chance of expressing the habit (OR = 2.4 and 1.6, respectively). The prevalence of bruxism in the studied sample was 29.3%, and its association with the primary second molars' terminal relationship was not statistically significant.

Association of infantile bruxism and the terminal relationships of the primary second molars.

The aim of this study was to analyze the association between infantile bruxism and the terminal relationships of the primary second molars. A total of 937 pre-school children (both genders), aged from 2 to 6 years, from municipal schools in São Paulo were evaluated. In this study, a questionnaire considering the bruxism habit and the presence of headaches and/or restless sleep was answered by the parents/guardians. A clinical exam of occlusion in the anteroposterior direction (vertical plane - VP, mesial step - MS and distal step - DS) was performed by the examiners in the school environment. Student's t test, Fisher's test and a logistic regression test were applied for the statistical analysis at a significance level of 5%. The prevalence of the bruxism habit was 29.3% among the total sample. Because there was no significant difference between the sides evaluated, the left side was taken as the standard. Among those children with bruxism, 25.7% presented a mesial step terminal relationship at the primary second molars, 29.1% had DS, and 30.2% had VP. Regarding the association of the parafunctional habit with the type of terminal relationship, no significant results were found. Children who slept restlessly or suffered from headaches were verified to show a higher chance of expressing the habit (OR = 2.4 and 1.6, respectively). The prevalence of bruxism in the studied sample was 29.3%, and its association with the primary second molars' terminal relationship was not statistically significant.

Associação entre bruxismo infantile as características oclusais, sonoe dor de cabeça / Association between infantile bruxism and the anteroposterior

O objetivo desse estudo foi avaliar a associação entre o bruxismo infantil e a relação decaninos e terminal dos segundos molares decíduos, em fase de dentadura decídua. A amostrafoi composta por 937 crianças de ambos os gêneros, na faixa etária dos 2 aos 6 anos de idade,procedentes de seis EMEls localizadas no bairro Tatuapé, zona leste da cidade de São Paulo. Osdados foram coletados por meio de questionários respondidos pelos pais/responsáveis e examesclínicos realizados em ambiente escolar, para a obtenção das características oclusais no sentidoanteroposterior. Mediante os resultados obtidos, a prevalência do hábito parafuncional do bruxismoinfantil foi de 29,3% do total da amostra e as prevalências quanto à relação terminal dossegundos molares decíduos, para o lado direito, foram de 15,4% para o Degrau Mesial, 12,50J0para o Degrau Distal e 72,1% para o Plano Terminal Reto. Já para a relação de caninos, considerandoo lado direito, 49,6% para a Classe 1, 45,5% para a Classe 2, 4,9% para a Classe 3. Oslados direito e esquerdo apresentaram-se semelhantes quantos às características. Não se detectouassociação do bruxismo com o tipo de relação de caninos e terminal dos segundos molaresdecíduos. Contudo, verificou-se que crianças com sono agitado apresentaram 2,4 vezes maischances de terem bruxismo (P = 0,000) e as crianças com dor de cabeça, 1,6 vezes (P = 0,003).

The aim of this study was to analyse the association between the bruxism and the anteroposteriorrelationship of the dental arches in complete primary dentition. The sample comprised937 children of both genders, aged from 2 to 6 years old, who attended municipal preschoolsin the eastern zone of São Paulo city. The information related to the bruxism was investigatedby means of questionnaires filled out by parents/guardians. The occlusal characteristics correspondingto the terminal relationships of the primary second molars and the relationshipsof the canines were performed by the examiners, in the school environment. According to theresults, among the total sample, 29.3% of children had bruxism. Considering the right side, asboth sides didn't show statistical difference, 15.4% of children presented mesial step terminalrelationship, 12.5% distal step and 72.1% vertical plane. For the canine relationship, 49.60J0presented Class 1, 45.5% Class 2, and 4.9% Class 3. The association between bruxism and theanteroposterior relationship of dental arches was not significant. It was verified that childrenwho slept restlessly (OR= 2.4) and suffering from headaches (OR= 1.6) showed more chancesof expressing the bruxism.

Estudo epidemiológico das lesões bucais no período de 05 anos / Epidemiological study of oral lesion in the period of 05 years

Introdução: Os estudos epidemiológicos perfazem uma grande área da pesquisa desempenhando um importante papel, pois revelam a prevalência de inúmeras doenças, e particularizam a sua distribuição dentro de características próprias do ambiente onde estão sendo executados. Métodos: Este estudo tem como o principal objetivo avaliar os prontuários dos pacientes da disciplina de Semiologia da Universidade Cidade de São Paulo entre os anos de 2003 a 2008, avaliando as informações referentes à ocorrência das lesões; isoladamente e por grupos de classificação; características como: idade, gênero, etnia; tipo de biópsia e diagnóstico histopatológico. Conclusões: Entre as lesões diagnosticadas através de anátomo-patológico, a hiperplasia fibrosa inflamatória ocorreu com mais frequência e o gênero mais acometido foi feminino entre a 5ª e 6ª década.

Introduction: Epidemiological studies make up a large area of research and play an important role, highlighting the prevalence of various diseases, and specify the distribution of characteristics in the environment they are running. Methods: This study evaluates the main patients? charts of Semiology University of São Paulo City between the years 2003 to 2008, evaluating the information related to the occurrence of injuries, isolation and classification groups; characteristics such as age, gender, race, type of biopsy and histopathological diagnosis. Conclusions: Among the lesions studied inflammatory fibrous hyperplasia was the most frequent diagnosis, the most affected gender was female between the 5th and 6th decade.