Date of Degree
MS (Master of Science)
First Committee Member
Holloway, Julie A
Second Committee Member
Dawson, Deborah V
Third Committee Member
Fourth Committee Member
Drake, David R
Objectives: The primary objective was to assess the impact of two denture fabrication techniques, conventional and CAD/CAM, on oral health-related quality of life (OHRQoL) and patient satisfaction in complete denture wearers. The secondary objective was to compare the level of microorganisms present on complete dentures from the two fabrication techniques.
Methods: Twenty-eight completely edentulous subjects (16 men and 21 women, age range from 49 to 87 years old.), who had been edentulous for at least 6 months, were wearing ill-fitting complete dentures, or unsatisfied with their existing complete dentures were recruited. Subjects were randomized to conventional and computer-aided design/ computer-aided manufacturing (CAD/CAM) treatment groups. Subjects in both groups were given the OHIP-EDENT (Oral Health Impact Profile for Edentulous Patients) and patient satisfaction questionnaires to record the data at baseline and at 1 month post-delivery of the new prostheses. Plaque samples were collected from intaglio surfaces of maxillary complete dentures at 1 month post-delivery to culture for any colonization of bacteria and/or yeasts.
Results: There was a significant reduction in OHIP-EDENT scores within both treatment groups at the 1 month follow-up (p < 0.05). There was also a significant reduction in almost all OHIP-EDENT domains scores at 1 month. Gender was significantly associated with OHIP-EDENT score at baseline (p = 0.0419) and at 1 month (p = 0.0152). Female subjects tend to have higher OHIP-EDENT scores than male subjects. There was no significant difference in patient satisfaction between treatment groups both at baseline and at the 1 month visit for almost all aspects of satisfaction (p> 0.05). Appearance of maxillary denture was the only significant difference in patient satisfaction across treatment groups (p = 0.0213). The comparisons of microbial counts showed no significant difference between treatment groups.
Conclusions: There were no significant difference on oral health-related quality of life (OHRQoL) and patient satisfaction between two treatment groups at baseline and 1 month. There was no significant difference in microbial counts between two treatment groups.
The absence of natural teeth affects people’s lives in both a physical and psychosocial way. As a result, they may avoid socializing with others. In contrast, complete dentures can improve appearance, speech and function, resulting in more self-esteem and participation in social activities.
Complete dentures have been the main treatment for edentulous people for decades. However, the process of making conventional complete dentures can sometimes be complicated and requires multiple steps. Furthermore, fit may be compromised because of dimensional change in the polymers during denture processing. Recently, digital dentures have become more well-known and accepted in dentistry. The limited available literature claims that digital dentures can reduce number of appointments and can simplify the fabrication procedure. However, there is still a lack of evidence to support this new technology.
This study aimed to assess the impact of two denture fabrication techniques; conventional and digital, on quality of life and patient satisfaction of denture wearers. This study also tried to compare the level of microorganisms present on a denture’s surface between the two fabrication techniques.
Our results revealed that there was an increased in quality of life for both treatment groups at the 1 month follow-up but no different between treatment groups. Females reported poorer quality of life than males. There was no significant difference in patient satisfaction between treatment groups except the subjects that received conventional treatment reported more satisfaction with the appearance of maxillary denture. The comparisons of microbial counts showed no significant difference between treatment groups.
CAD/CAM, CAD/CAM complete denture, Complete denture, digital complete denture, Oral health-related quality of life, Patient satisfaction
xi, 114 pages
Includes bibliographical references (pages 105-114).
Copyright © 2017 Wissanee Jia-mahasap
Jia-mahasap, Wissanee. "Comparative assessment of conventional vs. CAD/CAM complete denture fabrication techniques on patient satisfaction, quality of life and prosthesis biofilm." MS (Master of Science) thesis, University of Iowa, 2017.