치과용 캐드캠을 이용하여 연질금속 재료로 제작한 고정성보철물의 변연 간격 평가
Evaluation of Marginal Gap of Fixed Dental Prostheses Fabricated by Soft Metal Material Using Dental CAD/CAM
2
조회
0
다운로드
7
인용
0
참고문헌
키워드
초록
The purpose of this study was to evaluate marginal gap of fixed dental prostheses (FDPs) fabricated by soft metal material with using dentalcomputer aided design/computer aided manufacturing (CAD/CAM) system and to compare gap of its by a conventional method. Ten same casesof study models were manufactured and scanned for digital models fabricating. Ten FDPs were fabricated by soft metal material using dentalCAD/CAM (SMB group). Then, ten FDPs were fabricated by cast metal using lost wax technique and casting method (LWC group). Marginal gapwas measured by silicone replica technique. Gap was measured by digital microscope (×160). Mann-Whitney test for statistical analysis wasexecuted (α=0.05). The mean (standard deviations) of marginal gap was 76.5 μm (35.2) for the SMB group, and 82.9 μm (22.1) for the LWC group. Statistically significant differences were not found between SMB and LWC. As results, FDPs fabricated by soft metal material were clinicallyacceptable range.
Abstract
The purpose of this study was to evaluate marginal gap of fixed dental prostheses (FDPs) fabricated by soft metal material with using dentalcomputer aided design/computer aided manufacturing (CAD/CAM) system and to compare gap of its by a conventional method. Ten same casesof study models were manufactured and scanned for digital models fabricating. Ten FDPs were fabricated by soft metal material using dentalCAD/CAM (SMB group). Then, ten FDPs were fabricated by cast metal using lost wax technique and casting method (LWC group). Marginal gapwas measured by silicone replica technique. Gap was measured by digital microscope (×160). Mann-Whitney test for statistical analysis wasexecuted (α=0.05). The mean (standard deviations) of marginal gap was 76.5 μm (35.2) for the SMB group, and 82.9 μm (22.1) for the LWC group. Statistically significant differences were not found between SMB and LWC. As results, FDPs fabricated by soft metal material were clinicallyacceptable range.
참고문헌 (18)
- Kim KB, "An evaluation of marginal fit of three-unit fixed dental prostheses fabricated by direct metal laser sintering system", Dent Mater, 29, pp.e91~e96 (2013)
- 한만소, "주조에 의한 Core와 CAD-CAM에 의한 Core의 적합도 비교평가", 치위생과학회지, 12(4), pp.368~374 (2012), 한국치위생과학회
- 김재홍, "도재 소성 과정에서의 고온이 지르코니아 코어의 변연적합도에 미치는 영향", 치위생과학회지, 13(2), pp.135~141 (2013), 한국치위생과학회
- Foster LV, "Failed conventional bridge work from general dental practice: clinical aspects and treatment needs of 142cases", Br Dent J, 168, pp.199~201 (1990)
- 김기백, "Evaluation of the marginal and internal gap of metal-ceramic crown fabricated with a selective laser sintering technology: two- and threedimensional replica techniques", The Journal of Advanced of Prosthodontics, 5(2), pp.179~186 (2013), 대한치과보철학회[DOI]
- Ucar Y, "Internal fit evaluation of crowns prepared using a new dental crown fabrication technique: laser-sintered Co-Cr crowns", J Prosthet Dent, 102, pp.253~259 (2009)
- Örtorp A, "The fit of cobalt-chromium three-unit fixed dental prostheses fabricated with four different techniques: a comparative in vitro study", Dent Mater, 27, pp.356~363 (2011)
- Quante K, "Marginal and internal fit of metal-ceramic crowns fabricated with a new laser melting technology", Dent Mater, 24, pp.1311~1315 (2008)
- Kokubo Y, "Clinical marginal and internal gaps of zirconia all-ceramic crowns", J Prosthodont Res, 55, pp.40~43 (2011)
- Holmes JR, "Considerations in measurement of marginal fit", J Prosthet Dent, 62, pp.405~408 (1989)
- 김재홍, "고정성 보철물의 적합도 측정 시 사용하는 실리콘 복제본 기술의 정확도 평가", 치위생과학회지, 12(6), pp.566~571 (2012), 한국치위생과학회
- McLean JW, "The estimation of cement film thickness by an in vivo technique", Br Dent J, 131, pp.107~111 (1971)
- Blackman R, "Marginal accuracy and geometry of cast titanium copings", J Prosthet Dent, 67, pp.435~440 (1992)
- Gavelis JR, "The effect of various finish line preparations on the marginal seal and occlusal seat of full crown preparations", J Prosthet Dent, 92, pp.1~7 (2004)
- Oruc S, "Fit of titanium and a base metal alloy metal-ceramic crown", J Prosthet Dent, 83, pp.14~318 (2000)
- Beuer F, "Marginal and internal fits of fixed dental prostheses zirconia retainers", Dent Mater, 25, pp.94~102 (2009)
- Witkowski S, "Marginal accuracy of titanium copings fabricated by casting and CAD", CAM techniques, 2006, pp.96, 47~52
- Tan PL, "An in vitro comparison of vertical marginal gaps of CAD", CAM titanium and conventional cast restorations, 2008, pp.17, 378~383