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Chinese Journal of Stomatology ; (12): 353-354, 2007.
Article Dans Chinois | WPRIM | ID: wpr-333322

Résumé

<p><b>OBJECTIVE</b>To evaluate the periodontal conditions after the wedge-shaped defect was restored by gingival retraction technique.</p><p><b>METHODS</b>A total of 138 mandibular premolars with wedge-shaped defect were selected and divided into A, B groups. Group A was restored with Dyract after using retraction cord. Group B was directly restored with Dyract. Clinical parameters including plaque index (PLI), gingival index (GI), sulcus bleeding index (SBI), probing depth (PD), volumes of gingival crevicular fluid (GCF) and levels of aspartate aminotransferases (AST) of gingival crevicular fluid were measured at baseline, 1 week, 1 month, 3 months and 6 months after operation.</p><p><b>RESULTS</b>There was no difference in PLI, GI, SBI, PD between group A and B during 6 months after operation, while the difference of GCF and AST was significant between group A and B at 3 months and 6 months after operation (P < 0.05, P < 0.01).</p><p><b>CONCLUSIONS</b>Gingival retraction technique applied in wedge-shaped defect restoration can reduce the damage to the periodontal tissue.</p>


Sujets)
Adolescent , Adulte , Femelle , Humains , Mâle , Jeune adulte , Aspartate aminotransferases , Indice de plaque dentaire , Restaurations dentaires permanentes , Méthodes , Exsudat gingival , Indice parodontal
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