Earticle

초록

영어

Purpose: This study aimed to evaluate the trueness of three-dimensional (3D) printed zirconia single crowns using digital light processing with different build angles. Methods: A prepped maxillary right first molar model was scanned using a dental laboratory scanner (E4, 3Shape A/S). The anatomically contoured crown was designed using computer- aided design software (Dental Designer, 3Shape A/S) and saved as a standard tessellation language file. Three build angles (0°, 30°, and 60°) were defined using the slicing software (Zipros, AON). The crowns were printed using a digital light-processing 3D printer (N=30), followed by debonding and sintering to achieve the final shape. The crowns were scanned postprocessing and analyzed for trueness using 3D inspection software. Data were statistically analyzed with the one-way analysis of variance and Bonferroni post hoc tests. Results: The root mean square (RMS) values for the internal segments were 40.23 (0°), 53.01 (30°), and 82.49 (60°) μm. The marginal segments recorded RMS values of 34.63 (0°), 59.97 (30°), and 84.16 (60°) μm. Statistical analysis revealed significant differences among the groups (p<0.001). Conclusion: The results indicate that a 0° build angle with uniform height support structures provides the highest accuracy in digital light processing of 3D printed zirconia crowns.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 연구 시편 제작
2. 3차원 정확도 분석
3. 통계 분석
RESULTS
DISCUSSION
CONCLUSIONS
FUNDING
ACKNOWLEDGEMENTS
CONFLICT OF INTEREST
ORCID
REFERENCES

키워드

저자

• 이주희 [ Juhee Lee | 대전보건대학교 치기공학과 ]
• 이하빈 [ Ha-Bin Lee | (주)큐라움 ] 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