Portal de Periódicos da CAPES

Effect of two dentin bonding agents on microleakage in two different cavity designs

1992; Elsevier BV; Volume: 67; Issue: 4 Linguagem: Inglês

10.1016/0022-3913(92)90069-m

1097-6841

James M. Mixson, J. David Eick, David L. Moore, Daniel E. Tira,

Dental Implant Techniques and Outcomes

Abstract Studies have shown that cavity design and dentinal bonding agents can affect composite resin microleakage. This study compared the microleakage at cementum-dentin margins of ☐- and Vshaped preparations restored with two different bonding agents. Twenty freshly extracted, human third molars were prepared with one ☐-shaped and one V-shaped preparation on the mesial or distal surface. Occlusal margins were terminated in etched enamel and gingival margins were in cementum-dentin. There was no statistically significant difference ( p > 0.05) between Dual Cure Scotchbond and Scotchbond 2 samples restored in the ☐-shaped preparations, but Scotchbond 2 had statistically significantly less microleakage ( p < 0.05) than Dual Cure adhesive in V-shaped preparations. The sealing of dentinal bonding agents varied in different cavity designs.