The Effect of Autopolymerizing Acrylic Resin Thickness on the Bond Strength of a Repaired Denture Tooth

Abstract

The bond strength of a replaced denture tooth is affected by the thickness of the autopolymerizing acrylic resin. The failure mode of a rebonded denture tooth follows the same trend of the original failure. If possible, replace teeth with no relief. If combination failure occurs, leave residual base acrylic resin on the ridge lap.

<p>Assessing Tensile Bond Strength Between Denture Teeth and Nano-Zirconia Impregnated PMMA Denture Base</p>

“…2,6 In addition, several countries have their own national specification standards. 28 It is also worth detailing that other studies presented the bond quality in terms of strength (MPa) calculated by dividing the breaking force with a flat contact area at the interface. Unfortunately, these results cannot be compared as the contact areas were not flat but grooved in this study.…”

Effect of Repair Gap Width on the Strength of Denture Repair: An In Vitro Comparative Study

“…Clark and Hsu studied the effect of varying thickness of autopolymerized repair resin (0, 1, or 3 mm) on the bond strength of repaired acrylic denture teeth. They concluded that there is an inverse relation between the bond strength of repaired teeth and the amount of repair resin …”

“…They concluded that there is an inverse relation between the bond strength of repaired teeth and the amount of repair resin. 26 Autopolymerized acrylic resin has 3% to 5% free monomer, which adversely affects the surface roughness and mechanical properties of the resin, and compromises biocompatibility. 27 In addition to autopolymerized repair resin's drawbacks, such as polymerization shrinkage, color mismatch, and poor surface properties (low hardness and high roughness), increased Candida adhesion has been reported.…”