Earticle

초록

영어

Purpose: This study aimed to evaluate the impact of pressurization on the three-dimensional accuracy—trueness and precision—of full-arch type IV dental stone models used in prosthodontics. Methods: Dental stone models were categorized into three groups based on the applied pressurization levels during the setting process: 0 bars (0B group), 2 bars (2B group), and 4 bars (4B group). A dental pressurization system was employed to maintain pressure levels of 0, 2, and 4 bars, respectively. The models were analyzed using three-dimensional scanning and superimposition techniques, comparing them with a master model. A colordifference analysis was performed, with a 10-μm tolerance for green zones to standardize error evaluation. Results: The 2B group (2 bars) exhibited the highest accuracy, with minimal mean errors in trueness and precision relative to the 0B and 4B groups. The 0B group demonstrated significant deformation, attributed to microbubble formation and structural instability during the setting process. In contrast, the 4B group experienced increased internal stress and uneven curing, leading to slight distortions. Conclusion: Moderate pressurization at 2 bars significantly enhances the accuracy of type IV dental stone models by reducing deformations and minimizing trueness and precision errors. These findings suggest that controlled pressurization during the setting process improves the overall quality of dental prostheses.

목차

Article Info
INTRODUCTION
MATERIALS AND METHODS
1. 연구 시편 제작
2. 모형 스캔
3. 모형 중첩
4. 통계분석
RESULTS
DISCUSSION
CONCLUSIONS
FUNDING
ACKNOWLEDGEMENTS
CONFLICT OF INTEREST
ORCID
REFERENCES

키워드

저자

• 김동연 [ Dong-Yeon Kim | 경동대학교 치기공학과 ] Corresponding Author
• 황성식 [ Seong-Sig Hwang | 경동대학교 치기공학과 ]

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