title: Efficacy of denture adhesives in maxillary dentures using gnathodynamometry: a comparative study.
abstract: The purpose of this study was to investigate the effect of four commercially available denture adhesives on the incisal and premolar dislodgement forces of maxillary complete dentures by using an electronic and disposable gnathodynamometer and compare the measured incisal forces for differences. This study was conducted with 12 complete maxillary denture wearers. Four commercially available denture adhesives Super Corega(®), Corega Ultra(®), Super Corega Powder(®) and Fittydent Cationic(®) were investigated. Testing protocol and sequence included baseline measurements without adhesives (control) for previous and new dentures and then replications of measurements with the four adhesives. Maximum dislodgement forces were recorded in two sites between central incisors and the left 2nd premolars by using an electronic and disposable gnathodynamometer. To estimate the effect of the different adhesives on the dislodgement forces, data were analyzed by a 2- and 3-way ANOVA, while for estimating the agreement of the two devices a Bland-Altman and Mountain plots were used. ANOVAs indicated significant differences between adhesives (p < 0.05), denture types (p < 0.05) and biting sites (p < 0.05) with both devices. Bland-Altman plot and Mountain plots indicated a poor agreement of the two devices. It was concluded that denture adhesives increase the denture dislodgement forces, but with differences among them. The two devices do not highly agree with each other, but each one alone is useful in estimating dislodgement forces in clinical practice and research.
authors.affiliation: Department of Prosthodontics, Dental School, University of Athens, 2 Thivon Str, 115 27, Athens, Greece. grepolyz@dent.uoa.gr
authors.forename: Gregory
authors.initials: G
authors.lastname: Polyzois
authors.forename: Panagiotis
authors.initials: P
authors.lastname: Lagouvardos
authors.forename: Maria
authors.initials: M
authors.lastname: Frangou
authors.forename: Theodoros
authors.initials: T
authors.lastname: Stefaniotis
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D000368:Aged; D000369:Aged, 80 and over; D001641:Bicuspid; D001732:Bite Force; D003738:Dental Cements / Q000737:chemistry; D003819:Denture Bases; D003781:Denture Retention; D003827:Denture, Complete, Upper; D004209:Disposable Equipment; D004581:Electronics / Q000295:instrumentation; D004867:Equipment Design; D005260:Female; D006801:Humans; D007180:Incisor; D008297:Male; D008422:Materials Testing; D008875:Middle Aged; D011145:Polyvinyls / Q000737:chemistry; D015203:Reproducibility of Results; D013314:Stress, Mechanical; D014093:Tooth, Artificial; D014160:Transducers, Pressure
chemical_list: D000269:Adhesives; D003738:Dental Cements; C095403:Fittydent; D011145:Polyvinyls; C073208:Super Corega