Effect of Denture Adhesive on Biting Force of Complete Dentures

Objective: Although has been proved to be effective and widely used abroad, denture adhesives are still questioned by many dentists. This in vivo study was to measure the effects of a new form of denture adhesive on the maximum biting force of complete dentures. Methods: 10 edentulous patients with complete dentures worn for more than 8 years were selected for this study. All of their complete dentures were remade. Maximum force required to displace the dentures or cause pain were measured and recorded when the 10 patients had been wearing both their old and new dentures with and without denture adhesives for 5 min, as well as 8 of them wearing new dentures with denture adhesives 6 hours post-insertion using a force transducer(MPM-3000, Japan). Results: The maximum biting force were greater with new dentures than with old dentures(P < 0.01). The results of old dentures with adhesive were substantially greater than that without adhesive (P < 0.01), even was not substantially different from that with the new dentures (P > 0.5). Biting forces with adhesive to the new dentures were not significantly different from that without adhesive (P > 0.05). No significant reduction in biting forces (P > 0.5) showed 6 hours post-insertion. Conclusion: The improvement in retention of complete dentures with the use of denture adhesives allowed patients to increase their biting capability.