Resumo

GALLARDO-LOPEZ, Nuria Esther; DE NOVA-GARCIA, M. Joaquín  e  MOURELLE-MARTINEZ, Mª. Rosa. Evaluation of Compoglass® microleakage in primary molars. RCOE [online]. 2004, vol.9, n.1, pp.39-45. ISSN 1138-123X.

The purpose of this study has been to evaluate the marginal seal of Compoglass® (Vivadent), a polyacid-modified composite resin, in primary molars. Twelve clase II-cavities were prepared on the distal surfaces of 12 extracted healthy primary molars, restoring them with Compoglass. After a thermocycling process, the teeth were sealed except in the area of the restorations and were immersed in methylene blue 5% for 4 hours. Next, they were longitudinally sectioned and photographs were taken at a 40x magnification. The microleakage was limited to dental enamel in all the samples.  Microleakage was onlyobserved in the gingival margins and just in the 36,36% of the samples.Compoglass offers an acceptable marginal seal for its clinical use in primary dentition.

Palavras-chave : Microleakage; Marginal seal; Polyacid-modified composite resins; Compoglass.