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Evaluation of Marginal Gap of Fixed Dental Prostheses Fabricated by Soft Metal Material Using Dental CAD/CAM
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치과용 캐드캠을 이용하여 연질금속 재료로 제작한 고정성보철물의 변연 간격 평가

논문 기본 정보

Type
Academic journal
Author
Journal
한국치위생과학회 치위생과학회지 치위생과학회지 제14권 제3호 KCI Accredited Journals
Published
2014.1
Pages
349 - 355 (7page)

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Evaluation of Marginal Gap of Fixed Dental Prostheses Fabricated by Soft Metal Material Using Dental CAD/CAM
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Abstract· Keywords

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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.
#CAD-CAM #Fitness #Soft metal

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References (18)

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Beuer F / 2009 / Marginal and internal fits of fixed dental prostheses zirconia retainers / Dent Mater 25 : 94 ~ 102 google schola Blackman R / 1992 / Marginal accuracy and geometry of cast titanium copings / J Prosthet Dent 67 : 435 ~ 440 google schola Foster LV / 1990 / Failed conventional bridge work from general dental practice: clinical aspects and treatment needs of 142cases / Br Dent J 168 : 199 ~ 201 google schola Gavelis JR / 2004 / The effect of various finish line preparations on the marginal seal and occlusal seat of full crown preparations / J Prosthet Dent 92 : 1 ~ 7 google schola Holmes JR / 1989 / Considerations in measurement of marginal fit / J Prosthet Dent 62 : 405 ~ 408 google schola

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