| Project/Area Number |
17592038
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
補綴理工系歯学
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| Research Institution | Showa University |
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Principal Investigator |
KITAGAWA Noboru (2006) Showa University, School of Dentistry, associate professor, 歯学部, 助教授 (80177831)
積田 正和 (2005) 昭和大学, 歯学部, 助教授 (00138504)
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| Co-Investigator(Kenkyū-buntansha) |
SATO Yuji Showa University, School of Dentistry, chief professor, 歯学部, 教授 (70187251)
SHIMODAIRA Osamu Showa University, School of Dentistry, assistant professor, 歯学部, 講師 (30235684)
SHICHITA Toshiharu Showa University, School of Dentistry, assistant professor, 歯学部, 助手 (70307057)
IMAI Tomoko Showa University, School of Dentistry, assistant professor, 歯学部, 助手 (20384331)
北川 昇 昭和大学, 歯学部, 助教授 (80177831)
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| Project Period (FY) |
2005 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2005: ¥2,300,000 (Direct Cost: ¥2,300,000)
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| Keywords | outcome / complete denture / technology assessment / chewing function / satisfaction / complete denture quality / denture-supporting tissues / quality of life / 歯学 / 医療 / QOL / 臨床 / 老化 / アウトカム |
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| Research Abstract |
Purpose : As the aged population in Japan increases, clinicians are expected to provide high-quality treatment to improve patients' QOL. The purpose of this study was to evaluate the change of outcome before and after insertion of new dentures and to clarify the causes.
Methods : Thirty-five patients wearing complete dentures were selected after obtaining informed consent. Chewing function score, satisfaction score and supporting tissue score were used as the assessment factors. These were evaluated at three stages in complete denture treatment : before insertion of new dentures (old denture), first visit after insertion of new dentures (1st visit), and one month after insertion (1 month). Changes in scores were analyzed with ANOVA, t-test and correlation coefficient. Factors for evaluating chewing function and satisfaction were analyzed in detail.
Results : In chewing function, when the score of "old denture" was high, the score after insertion decreased greatly. Satisfaction increased from old denture to 1st visit, and increased further at 1 month. In addition, there were significant relationships between the changes in satisfaction and the satisfaction factor "fit of the maxillary denture" and "comfort of the mandibular denture". There was also a significant correlation between the changes in chewing function and the changes in satisfaction.
Conclusion : The changes in outcome were evaluated before and after inserting new dentures and the causes were clarified. In case of the good outcome of old denture, the outcome of new denture tended to decrease. The satisfaction factors "fit of the maxillary denture" and "comfort of the mandibular denture" were suggested to be the key factors after insertion of new dentures.
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