5º FICHAMENTO
Autor: Anni Odonto | Publicado: 2011-06-05T16:34:00-07:00

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5º FICHAMENTO
Prevalência de manchas dentais extrínsecas negras e sua relação com a cárie dentária em crianças do município de Santa Terezinha de Itaipu – PR
Prevalence of black extrinsic dental stains and its relationship withchildren dental decay in the town of Santa Terezinha de Itaipu – PR

Cristiana Trevisan Caldas*Fábio Luiz Mialhe**Renato Pereira da Silva***
“A pigmentação extrínseca negra apresenta-se sob a forma de pontos ou pequenas áreas de coloração escura que podem vir a coalescer, formando uma linha que segue o contorno da gengiva marginal, ou sob a forma difusa, recobrindo boa parte da coroa do dente. Os sulcos, fóssulas e fissuras podem também se encontrar impregnados por tais pigmentações, as quais, particularmente nessas áreas, são de difícil remoção4.”
“Dessa forma, o objetivo deste trabalho foi avaliar a prevalência de manchas extrínsecas negras do esmalte em crianças de 6 a 12 anos matriculadas em escolas públicas municipais e numa escola particular do município de Santa Terezinha de Itaipu - PR, bem como verificar sua possível associação com a cárie dentária nessa faixa etária.”
“Numa primeira fase foram examinados 404 escolares (194 do gênero masculino e 210 do gênero feminino), na faixa etária de 6 a 12 anos, provenientes das cinco escolas públicas municipais e de uma escola particular do município de Santa Terezinha de Itaipu, localizado no extremo oeste do Paraná, com uma população aproximada de 22 mil habitantes. A seleção dos escolares examinados foi feita por amostragem aleatória simples e representou cerca de 51,5% de todas as crianças matriculadas nesta faixa etária nas escolas.”
“Para comparar a prevalência de cárie entre os grupos selecionou-se uma amostra aleatória de 120 crianças para compor o grupo de controle, sem manchas extrínsecas negras, mas que constituíssem um grupo semelhante ao experimental em relação à escola onde estudavam, idade e gênero.”
“Da amostra total estudada, somente 23 crianças, 14 meninas (67%) e 9 meninos (33%), todaspertencentes às escolas públicas do município, apresentaram pigmentações extrínsecas negras, o que corresponde a uma prevalência de 5,75%.”
“Das 404 crianças examinadas, 23 apresentaram pigmentações extrínsecas negras, sendo todas pertencentes às escolas públicas do município, numa proporção de 14 meninas (67%) para 9 meninos (33%), chegando a uma prevalência de 5,75%. Bastos5 (1989) observou uma prevalência similar de 5,88% de pigmentações extrínsecas numa amostra de 1564 escolares de 6 a 13 anos.”
“A prevalência de pigmentações extrínsecas negras foi pequena na amostra pesquisada, sendo a prevalência de cárie na dentição decídua de crianças portadoras de manchas negras menor do que a das crianças sem manchas. Entretanto, essas diferenças não foram estatisticamente significativas.”