Earticle

초록

영어

Purpose: The purpose of this study was to assess the internal fitness of the PMMA 3-unit bridge that was fabricated with 5-axis milling machine and to verify the clinically allowable values. Methods: For fabrication of the crown bridge in this study, 25-27 abutment teeth were used. The prepare abutment teeth were scanned with a scanner and 3-unit bridge was designed by using design software. Upon the completion of the design, the 3-unit bridge was fabricated by using a PMMA block with 5-axis milling machine. The internal surface of the fabricated 3-unit bridge was scanned by using a scanner and the difference between the 3-unit bridge and the abutment teeth was assessed by merging them together. Results: RMS±SD values for PRE group, MOL group, and BRI group were 51.2±18.2, 44.8±10.0, and 52.1±8.3㎛, respectively. The mean of the PRE group was bigger than that of the MOL and BRI group; however, statistically significant difference was not found (p>0.05). Conclusion: The PMMA 3-unit bridge that was fabricated with 5-axis milling machine presented stable internal values for each crown and overall internal values were within the range of clinically allowable values.

목차

[Abstract]
 Ⅰ. 서론
 Ⅱ. 연구 방법
  1. 지대치 제작 및 스캔
  2. 디자인 및 밀링
  3. 3차원 측정
  4. 통계분석
 Ⅲ. 결과
 Ⅳ. 고 찰
 Ⅴ. 결론
 REFERENCES

키워드

저자

• 김총명 [ Chong-Myeong Kim | 고려대학교 대학원 보건과학과 치의기공전공 ]
• 김재홍 [ Jae-Hong Kim | 경동대학교 치기공학과 ]
• 김지환 [ Ji-Hwan Kim | 고려대학교 대학원 보건과학과 치의기공전공 ]
• 김웅철 [ Woong-Chul Kim | 고려대학교 대학원 보건과학과 치의기공전공 ] 교신저자

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