Browse > Article
http://dx.doi.org/10.17135/jdhs.2015.15.5.536

Evaluation of Marginal and Internal Gap of Cobalt-Chromium Sintering Metal Coping Fabricated by Dental CAD/CAM System  

Kim, Dong-Yeon (Dental Laboratory Science and Engineering, Department of Public Health Science, Korea University Graduate School)
Sin, Chun-Ho (S.M Dental Laboratory)
Jung, Il-Do (Dental Laboratory Science and Engineering, Department of Public Health Science, Korea University Graduate School)
Kim, Ji-Hwan (Dental Laboratory Science and Engineering, Department of Public Health Science, Korea University Graduate School)
Kim, Woong-Chul (Dental Laboratory Science and Engineering, Department of Public Health Science, Korea University Graduate School)
Publication Information
Journal of dental hygiene science / v.15, no.5, 2015 , pp. 536-541 More about this Journal
Abstract
The purpose of this study was to evaluate the marginal and internal gap of Cobalt (Co)-Chromium (Cr) sintering metal coping fabricated by dental computer-aided design/computer-aided manufacturing systems. Abutment tooth 46 of universal numbering system was selected for the study. Twenty Co-Cr metal copings of two groups were manufactured and scanned. Co-Cr cast metal copings (CCM) group of ten were fabricated using investment, burnout and casing after subtractive manufacturing of wax block. Also, Co-Cr sintering metal copings (CSM) group of ten were fabricated using sintering processing after subtractive manufacturing of Co-Cr soft metal bock. Marginal and internal gap of Co-Cr metal copings of twenty were measured by digital microscope (${\times}160$) with silicone replica technique. The data was analyzed from IBM SPSS Statistics ver. 22.0 Statistical software for Mann-Whitney U test (${\alpha}=0.05$). $Mean{\pm}standard$ deviation of marginal gap of CCM group was $90.12{\pm}61.73{\mu}m$ of CSM group was $60.17{\pm}24.83{\mu}m$. However, two groups was statistically not different (p>0.05). This study showed that CSM group was clinically acceptable adaptation.
Keywords
Adaptation; Cobalt; Computer-aided design; Chromium; Marginal;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Duret F, Preston J: CAD/CAM imaging in dentistry. Curr Opin Dent 1: 150-154, 1991.
2 Pradies G, Zarauz C, Valverde A, Ferreiroa A, Martinez-Rus F: Clinical evaluation comparing the fit of all-ceramic crowns obtained from silicone and digital intraoral impressions based on wavefront sampling technology. J Dent 43: 201-208, 2015.   DOI
3 van Noort R: The future of dental devices is digital. Dent Mater 28: 3-12, 2012.   DOI   ScienceOn
4 Kim KB, Kim JH, Kim WC, Kim JH: Three-dimensional evaluation of gaps associated with fixed dental prostheses fabricated with new technologies. J Prosthet Dent 112: 1432-1436, 2014.   DOI
5 Hildebrand HF, Veron C, Martin P: Nickel, chromium, cobalt dental alloys and allergic reactions: an overview. Biomaterials 10: 545-548, 1989.   DOI
6 Magnusson B, Bergman M, Bergman B, Soremark R: Nickel allergy and nickel-containing dental alloys. Eur J Oral Sci 90: 163-167, 1982.   DOI
7 Lee JH, Ahn JS: The effect of a au based bonding agent coating on non precious metals-ceramic bond strength. J Dent Hyg Sci 9: 153-160, 2009.
8 Colpani JT, Borba M, Della Bona A: Evaluation of marginal and internal fit of ceramic crown copings. Dent Mater 29: 174-180, 2013.   DOI   ScienceOn
9 Napankangas R, Raustia A: Twenty-year follow-up of metalceramic single crowns: a retrospective study. Int J Prosthodont 21: 307-311, 2007.
10 Kim DY, Jeon JH, Park JY, Kim JH, Kim HY, Kim WC: Comparison of the marginal and internal gap of metal coping according to processing method of dental CAD/CAM System. J Dent Hyg Sci 15: 12-17, 2015.   DOI
11 Kim KB, Kim WC, Kim HY, Kim JH: An evaluation of marginal fit of three-unit fixed dental prostheses fabricated by direct metal laser sintering system. Dent Mater 29: 91-96, 2013.
12 Kokubo Y, Tsumita M, Kano T, Sakurai S, Fukushima S: Clinical marginal and internal gaps of zirconia all-ceramic crowns. J Prosthodont Res 55: 40-43, 2011.   DOI
13 Boening KW, Wolf BH, Schmidt AE, Kastner K, Walter MH: Clinical fit of procera allceram crowns. J Prosthet Dent 84: 419-424, 2000.   DOI
14 Fransson B, Oilo G, Gjeitanger R: The fit of metal-ceramic crowns, a clinical study. Dent Mater 1: 197-199, 1985.   DOI
15 Tinschert J, Natt G, Mautsch W, Spiekermann H, Anusavice K: Marginal fit of alumina-and zirconia-based fixed partial dentures produced by a CAD/CAM system. Oper Dent 26: 367-374, 2001.
16 Molin M, Karlsson S: The fit of gold inlays and three ceramic inlay systems: a clinical and in vitro study. Acta Odontol Scand 51: 201-206, 1993.   DOI
17 Kohorst P, Brinkmann H, Li J, Borchers L, Stiesch M: Marginal accuracy of four-unit zirconia fixed dental prostheses fabricated using different computer-aided design/computer-aided manufacturing systems. Eur J Oral Sci 117: 319-325, 2009.   DOI
18 McLean JW, von Fraunhofer JA: The estimation of cement film thickness by an in vivo technique. Br Dent J 131: 107-111, 1971.   DOI
19 Ng J, Ruse D, Wyatt C: A comparison of the marginal fit of crowns fabricated with digital and conventional methods. J Prosthet Dent 112: 555-560, 2014.   DOI
20 Behr M, Rosentritt M, Leibrock A, Schneider-Feyrer S, Handel G: In-vitro study of fracture strength and marginal adaption of fibre-reinforced adhesive fixed partial inlay dentures. J Dent 27: 163-168, 1999.   DOI
21 Behr M, Rosentritt M, Regnet T, Lang R, Handel G: Marginal adaptation in dentin of a self-adhesive universal resin cement compared with well-tried systems. Dent Mater 20: 191-197, 2004.   DOI   ScienceOn