Earticle

초록

영어

Purpose: The present study aimed to assess the effect of palatal thickness and reinforcement insertion on the three-dimensional precision of the mucosal surface of maxillary denture bases after polymerization. Methods: Fifteen edentulous maxillary casts were fabricated and divided into three groups (n=5). The convention, complete denture, double-layer of base plate wax (CCD) group was fabricated with a double-layer baseplate wax without reinforcement. The reinforcement material, complete denture, double-layer of base plate wax (RCD) group used the same wax thickness with reinforcement insertion, whereas the reinforcement, complete denture, triple- layer of base plate wax (RCT) group was fabricated with triple-layer wax and reinforcement. After conventional heat polymerization, the mucosal surfaces were scanned, and the STL data were analyzed using best-fit superimposition. Precision was quantified by measuring the surface deviation values (μm), and the color difference maps were generated for visual analysis. Statistical analysis was performed using one-way ANOVA and Duncan’s post hoc test (α=0.05). Results: The CCD group showed the lowest mean surface deviation (46.69±10.65 μm), followed by the RCD group (63.10±16.70 μm), and the RCT group (82.76±20.94 μm). Significant differences were observed among all groups (p<0.001). The color difference maps revealed more uniform deviation patterns in the CCD group, whereas the RCT group presented with broader negative deviations in the central palatal region and mixed deviation patterns in the peripheral areas. Conclusion: Increased palatal thickness and reinforcement insertion significantly influenced the three-dimensional precision of the denture based-mucosal surface. Thus, structural optimization considering both reinforcement design and thickness control is required to maintain morphological stability.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 연구설계
2. 연구 모형 제작 및 기성 보강재 제작
3. 기초상 제작
4. 매몰 및 왁스 제거
5. 레진 주입 및 온성
6. 모형 스캔 및 3차원 분석
7. 통계 및 분석
RESULTS
DISCUSSION
CONCLUSIONS
FUNDING
ACKNOWLEDGEMENTS
CONFLICT OF INTEREST
ORCID
REFERENCES

키워드

저자

• 김동연 [ Dong-Yeon Kim | 연성대학교 치기공과 ] Corresponding Author
• 이혜은 [ Hye Eun Lee | 연성대학교 치기공과 ]
• 전진훈 [ Jin-Hun Jeon | 주식회사 리얼티쓰 ]
• 유승규 [ Seung-Gyu You | 주식회사 리얼티쓰 ]
• 유승민 [ Seung-Min You | 주식회사 리얼티쓰 ]
• 이범일 [ Beom-Il Lee | 주식회사 리얼티쓰 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한치과기공학회지 [THE JOURNAL OF KOREAN ACADEMY OF DENTAL TECHNOLOGY]

• 간기

  계간

• pISSN

  1229-3954

• eISSN

  2288-5218

• 수록기간

  1979~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 515 DDC 617