Effect of Surface Treatments and Bonding Agents on the Bond Strength of Repaired Composites

Abstract

Only air abrasion associated with a self-etching system provided repair bond strength comparable to composite UTS.

Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs

“…16 These monomers are fundamental during the incremental execution of the composite resin restoration, since they allow for co-polymerization with the monomers of the new layer of composite resin, thereby maintaining the cohesive strength of the material. 18 Moreover, there was an increase in roughness of the resin surface prior to the repair in Groups 3, 4, 5, and 6, which may have contributed to the bond strength. 19 The groups treated only with 37% phosphoric acid were effective only when repaired in 24 h, regardless of the time of the mechanical assay.…”

Durability of Surface Treatments and Intermediate Agents Used for Repair of a Polished Composite

“…14 Primary bonding to these particles is not likely and probably relies on the micromechanical interlocking produced by roughening with diamond burs [15][16][17] or air abrasion with aluminum oxide. 1,[6][7]9,[18][19] Thus, the effectiveness of surface treatments for recently polished restorations should be a matter of further study.…”

Effect of surface conditioning methods, adhesive systems and resin composite on repair strength of dimethacrylate and silorane resin composites

“…The specimens were removed from the matrix and the area to be repaired was finished with abrasive discs (Soflex, 3M ESPE) to remove the oxygen-inhibited layer. The specimens were stored in distilled water at 37 o C for 24 h [3,15].…”

“…Type I: Adhesive failure at the interface; Type II: Mixed failure (a combination of more than one type of fracture); Type III: Cohesive failure in the substrate composite [3].…”

“…Resin composite materials used in restorative dentistry offers the advantage of repair approach that prolongs the service life of failed restorations [3][4][5][6][7]. Repair procedures are considered minimal invasive and economic solutions in restorative dentistry since replacement of old restorations yield to removal of sound dental tissues surrounding of the restoration due to the difficulty to distinguish the restoration margins from the cavity walls [8,9].…”