Comparison of the Retention of Conventional Dentures after the use of Common Adhesive Brands on Poor Denture Foundations. An in vitro Study

Abstract

There is no information about the possible impact in denture retention after the use of common denture adhesives (DAs) when poor denture foundations (PDF) are present. Moreover, there is a lack of information about which current formulation provides greater retention and for how long. Twelve models from edentulous patients with different ridge shape and border height were used and complete dentures were manufactured. Four different formulation brands of DAs were tested after 10 minutes and three, six, nine, and 12 hours of DA application using a universal testing machine. The Fittydent® and Fixodent® adhesives had the highest retention at 12 hours. The PDF group increased on average its retention by 400 %. However, the group presented lower retention compared to the good denture foundation group. In conclusion, DAs significantly increased denture retention. The PDF group were the most benefited with the application of DAs. The Fixodent® paste had the highest retention.

Retention Capacity of Original Denture Adhesives and White Brands for Conventional Complete Dentures: An In Vitro Study

“…According to Johnson et al, the saliva used in a DA retention study is of crucial importance as in vivo retention depends on it. The use of artificial saliva is important due to its viscosity, as compared to studies using water [36,37]. The hydration time of the models and DA was 10 min, using the method described by Flores-León et al Saliva was maintained at 37 • C, reproducing the conditions of the oral cavity, as reported by Ikemura et al [30].…”

“…The maximum force was recorded, and the retention force was calculated, according to tests performed by several authors [27,30]. The measurements were performed after the DA application and the following 10 min of hydration [37]. This selected time interval was based on several articles described in the literature and, according to ISO 10873, for type 1, class 2 dental adhesives [31,37].…”

“…The measurements were performed after the DA application and the following 10 min of hydration [37]. This selected time interval was based on several articles described in the literature and, according to ISO 10873, for type 1, class 2 dental adhesives [31,37].…”

A randomized controlled trial assessing denture adhesive efficacy on denture retention across 13 hours

“…The Ca/Zn partial salt of PVM‐MA provides a stronger longer‐term hold due to its lower water solubility level. This unique formulation warrants evaluation with respect to retention efficacy, because studies have shown that various adhesive formulations exhibit differential efficacy 15–18 …”

“…This unique formulation warrants evaluation with respect to retention efficacy, because studies have shown that various adhesive formulations exhibit differential efficacy. [15][16][17][18] Gnathodynamometry is an established method of measuring maxillary denture retention. 11,12,19,20 In this method, study participants bite on the gnathodynamometer mouthpiece, which alters the length of the wire contained therein; the resultant differential resistance of the wire reflects the bite force.…”