Effect of an acrylic resin-based resilient liner applied to mandibular complete dentures on satisfaction ratings among edentulous patients.
OBJECTIVE
The aim of this study was to investigate whether an acrylic resin-based resilient liner (ARL) could improve the satisfaction ratings of complete denture wearers. The null hypothesis was that no difference exists between the satisfaction ratings of conventional acrylic resin denture (CARD) wearers and those of ARL denture (ARLD) wearers.


METHODS
From April 2004 to July 2006, a randomized controlled trial was conducted at two centers, including 74 edentulous patients. Of these, 37 patients were each randomly allocated to the ARLD and CARD groups. All of the patients rated their satisfaction with dentures, including general satisfaction and satisfaction with chewing ability, speaking, cleaning, stability, retention, comfort, and esthetics. These satisfaction ratings were measured by a 100-mm visual analog scale. Perceived chewing ability of different foods, divided into five grades, was measured using a questionnaire. The mastication index (MI) was calculated for each grade.


RESULTS
General satisfaction, satisfaction with chewing, and satisfaction with speaking were significantly higher in the ARLD than in the CARD group (P = .049, .025, and .049, respectively). The chewing satisfaction with maxillary dentures in the ARLD group was significantly higher than that of the CARD group (P = .02). No significant difference existed between the MI of the ARLD (69.2 ± 17.0) and CARD groups (66.7 ± 18.7).


CONCLUSIONS
Within its limitations, this study showed that the ARL improves a complete denture wearer's satisfaction ratings.
Suguru
S
Kimoto
Katsuhiko
K
Kimoto
Hiroshi
H
Murakami
Gunji
G
Atsuko
Akina
A
Ogawa
Yasuhkio
Y
Kawai
D000180:Acrylic Resins / Q000737:chemistry*; D000368:Aged; D003764:Dental Materials / Q000737:chemistry; D003819:Denture Bases; D003822:Denture Liners / Q000523:psychology; D003781:Denture Retention / Q000523:psychology; D003826:Denture, Complete, Lower / Q000523:psychology*; D003827:Denture, Complete, Upper / Q000523:psychology; D004955:Esthetics, Dental; D005260:Female; D006801:Humans; D008297:Male; D008409:Mastication / Q000502:physiology; D008768:Methylmethacrylates / Q000737:chemistry; D009910:Oral Hygiene; D017060:Patient Satisfaction; D010968:Plasticizers / Q000737:chemistry; D013060:Speech / Q000502:physiology; D064232:Visual Analog Scale
D000180:Acrylic Resins; D003764:Dental Materials; D008768:Methylmethacrylates; D010968:Plasticizers; C009931:poly(ethylmethacrylate)