Presença de nódulo pulpar e reabsorção radicular externa em dentes tratados ortodonticamente

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

27/07/2008

RESUMO

Orthodontic treatment, even when properly performed, may cause pulp alterations as calcification and resorption. The purpose of this study is to evaluate the presence of root resorption and pulp nodules in three different techniques of orthodontic treatment: Ricketts Technique (group 1-n=23), Plain Straight Wire (group 2-n=21) and Straight Wire (group 3-n=26). Previous Orthopantogram of seventy patients were analyzed and compared with post orthodontic treatment panoramic X-Ray, using a negatoscope and a 4 X magnifying lens. Presence or absence of nodules were observed, as well as the root resorption degree: first degree (minimum or absence of resorption); second degree (>than 1mm and 2mm); third degree (between 2 mm and 1/3 of the root) and fourth degree (more than 1/3 of the root). The results according with the numbers of pulp nodules were, in decreasing order: G1 (4/23) >G3 (3/26) >G2 (1/21), however, there were no statistic difference among the groups in the level of 5%. About resorption, no group had fourth degree of it, the third degree of resorption were the most frequent on G3 (3/26), followed by G1 (2/23). The second degree was, in decreasing order: G1 (16/23) >G3 (14/26) >G2 (7/21). For first degree: G2 (14/21) >G3 (7/26) >G1 (5/23). There were significant statistic difference (p<0,05) about the resorption on interactions G1 x G2 and G2 x G3. The study concluded that different orthodontic techniques may influence significantly on pulp nodules and root resorption developing.

ASSUNTO(S)

ortodontia reabsorção externa nódulos pulpares external resorption pulp nodules orthodontic endodontia

ACESSO AO ARTIGO

Documentos Relacionados