Earticle

초록

영어

Purpose: To evaluate and compare the dimensional accuracy of maxillary denture bases fabricated using digital light processing (DLP) and liquid crystal display (LCD) 3D printing technologies with the same materials and standardized printing parameters. Methods: A standard edentulous maxillary model was used to design a computer-aided design (CAD)-based denture base, which was then printed using DLP (Asiga Pro 4K, 10 specimens) and LCD (UNIZ NBEE, 10 specimens) printers. After post-processing, all specimens were scanned and analyzed using Geomagic Control X. Dimensional accuracy was assessed by calculating the root mean square (RMS) deviation between the printed and reference CAD data. Data were analyzed using Welch’s t-test (α=0.05). Results: RMS values were significantly lower in the LCD group (98.30±3.41 μm) than in the DLP group (166.59±24.18 μm) (p<0.001), indicating superior geometric fidelity. Color difference maps revealed consistent accuracy across the LCD-printed surfaces, whereas DLPprinted samples showed distortion in margin and palatal regions. Conclusion: Under standardized conditions, the LCD printing method demonstrated higher dimensional accuracy and consistency than the DLP method, suggesting its relative clinical suitability for complete denture fabrication.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 기준 모형 제작
2. CAD 설계 및 STL 파일 생성
3. 3D 프린팅 장비 및 조건
4. 시편 세척 및 후경화
5. 3차원 형상 정밀도 분석
6. 통계 분석
RESULTS
DISCUSSION
CONCLUSIONS
FUNDING
ACKNOWLEDGEMENTS
CONFLICT OF INTEREST
ORCID
REFERENCES

키워드

저자

• 이희정 [ Hee-Jung Lee | 부천대학교 치기공과, 치과캐드캠기공학회 ]
• 배은정 [ Eun-Jeong Bae | 부천대학교 치기공과, 치과캐드캠기공학회 ]
• 이완선 [ Wan-Sun Lee | 부천대학교 치기공과 ] 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