Earticle

초록

영어

Purpose: This study aimed to evaluate and compare the marginal and internal fit of provisional dental prostheses fabricated using two different printing techniques with identical computer-aided design data and design parameters, as well as to assess their clinical applicability. Methods: A three-unit fixed dental prosthesis was designed using the maxillary right first premolar and first molar as abutments, with the missing right second premolar serving as a pontic. Based on the design, a negative mold was fabricated using silicone impression material, and dental stone was poured to create working models. Each model was scanned using a dental scanner, and a total of 20 specimens (10 per group) were fabricated from the resulting STL data. The fit of the specimens was assessed using the silicone replica technique and examined under an optical microscope at 12 measurement points, including the marginal area, axial wall, and occlusal surface. Statistical analysis was performed using an independent sample t-test (α=0.05). Results: Prostheses fabricated using the liquid crystal display (LCD) method demonstrated significantly smaller gap values at all measured sites compared with those produced using the digital light processing method (p<0.05). Although most gap measurements in both groups remained within the clinically acceptable limit of 120 μm, the LCD-fabricated restorations consistently demonstrated superior overall adaptation. Conclusion: The findings of this study indicate that the type of printing method significantly affects the fit of provisional restorations. For improved restoration accuracy, the use of the LCD printing method is recommended.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 모형 및 시편 제작
2. 적합도 측정
3. 통계 분석
RESULTS
DISCUSSION
CONCLUSIONS
FUNDING
ACKNOWLEDGEMENTS
CONFLICT OF INTEREST
ORCID
REFERENCES

키워드

저자

• 장수영 [ Su-Yeong Jang | 부산가톨릭대학교 보건과학대학 치기공학과 ]
• 김세연 [ Se-Yeon Kim | 부산가톨릭대학교 보건과학대학 치기공학과 ]
• 김재홍 [ Jae-Hong Kim | 부산가톨릭대학교 보건과학대학 치기공학과 ] Corresponding Author

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