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유리섬유 보강재를 삽입한 하악 레진의치 인상면의 정밀성 평가

Precision evaluation of impression surface of lower complete dentures reinforced with glass fiber

대한치과기공학회지 2020년 42권 1호 p.27 ~ 33
김동연 ( Kim Dong-Yeon ) - 4RD Dental Laboratory

양천승 ( Yang Cheon-Seung ) - Donga University of Health Department of Dental Laboratory
이광영 ( Lee Gwang-Young ) - Wonkwang Health Science University Department of Dental Laboratory Technology
김지환 ( Kim Ji-Hwan ) - Korea University College of Health Science Department of Dental Laboratory Science and Engineering

Abstract


Purpose: This study is to compare and analyze the precision of glass fiber resin dentures.

Methods: A lower edentulous model was prepared. Ten study models were produced using Type IV stone. Ten wax lower resin dentures containing artificial teeth were prepared. The lower wax denture was buried with plaster and deflasking was performed to remove the wax. Five conventional lower resin dentures and five glass fiber lower resin dentures were produced. The scanning spray was coated on the impression surface and then scanned. Independent sample t-test were performed using statistical software.

Results: In the color different map, which is a qualitative evaluation, the green area of the precision of the conventional lower resin denture occupied the whole. The glass fiber conventional resin dentures had many negative and positive area. In quantitative evaluation, the RMS of conventional lower resin was 89.83 ㎛ and that of fiberglass resin was 224.92 ㎛. The two groups showed statistically significant differences (p<0.05).

Conclusion: Conventional lower resin dentures were superior in precision, and glass fiber resin dentures would have to improve the process.

키워드

Complete denture; Glass fiber; PMMA; Precision
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