Browse > Article
http://dx.doi.org/10.14347/jtd.2020.42.3.234

Comparison of marginal fit of metal copings according to wax blocks and oral scanning methods  

Chung, In-Sung (Department of Dental Laboratory Science, College of Health Science, Catholic University of Pusan)
Kim, Won-Young (Department of Dental Laboratory Science, College of Health Science, Catholic University of Pusan)
Jeon, Byung-Wook (Department of Dental Laboratory Science, College of Health Science, Catholic University of Pusan)
Publication Information
Journal of Technologic Dentistry / v.42, no.3, 2020 , pp. 234-239 More about this Journal
Abstract
Purpose: We investigated the marginal fit between abutment and metal copings according to impression technique, wax block types, and metal types. Methods: We selected the traditional impression method of using rubber impression materials and the digital impression method of using oral scanners, three types of wax blocks, and two types of metal, both of which were domestically and commercially available, were selected to produce metal copings, and the marginal fit was determined through the use of silicon replication. Results: The measurements of axial wall fit revealed that the IYV specimens had the best fit, with a mean gap of 24.11±5.95 ㎛, followed by CEV, CHV, CSS, CSV, CES, CHS, and IYS specimens (mean: 33.44±8.41 ㎛). The differences were not statistically significant. The marginal gap measurements showed that the CEV specimen had the smallest gap, 17.25±4.13 ㎛, followed by the CSV, CHV, CSS, CES, CHS, IYV, and IYS specimen (mean: 43.47±15.63 ㎛). The differences were statistically significant. Conclusion: The axial wall fit of the metal coping (VeraBond2V; Aalba Dent, Inc., Fairfield, CA, USA) produced by the lost wax technique with the traditional impression method was excellent. The marginal fit of the metal coping (VeraBond 2V) produced by wax milling with the use of an oral scanner was also excellent. The marginal fit of the metal coping was within the clinically acceptable limits in all groups.
Keywords
Impression technique; Marginal fitness; Oral scanner; Wax block;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Goujat A, Abouelleil H, Colon P, Jeannin C, Pradelle N, Seux D, et al. Marginal and internal fit of CAD-CAM inlay/onlay restorations: a systematic review of in vitro studies. J Prosthet Dent. 2019;121:590-597.e3.   DOI
2 Fischer H, Weber M, Marx R. Lifetime prediction of allceramic bridges by computational methods. J Dent Res. 2003;82:238-242.   DOI
3 Park TH. A comparison of digital impression with conventional impression [master's thesis]. Seoul: Seoul National University, 2014.
4 Guth JF, Keul C, Stimmelmayr M, Beuer F, Edelhoff D. Accuracy of digital models obtained by direct and indirect data capturing. Clin Oral Investig. 2013;17:1201-1208.   DOI
5 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. 2015;43:201-208.   DOI
6 Abdel-Azim T, Rogers K, Elathamna E, Zandinejad A, Metz M, Morton D. Comparison of the marginal fit of lithium disilicate crowns fabricated with CAD/CAM technology by using conventional impressions and two intraoral digital scanners. J Prosthet Dent. 2015;114:554-559.   DOI
7 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. 2015;15:12-17.   DOI
8 Kim KB, Kim SH, Kim JH. Marginal adaptation of Zirconium dioxide core according to the abutment teeth. J Dent Hyg Sci. 2015;15:54-59.   DOI
9 Chung IS, Jeon BW, Kim WY. Comparison of marginal fitness of zirconia copings according to impression techniques and zirconia blocks. J Korea Contents Assoc. 2016;16:151-157.   DOI
10 Laurent M, Scheer P, Dejou J, Laborde G. Clinical evaluation of the marginal fit of cast crowns--validation of the silicone replica method. J Oral Rehabil. 2008;35:116-122.   DOI
11 Park JY, Bae SY, Lee JJ, Kim JH, Kim HY, Kim WC. Evaluation of the marginal and internal gaps of three different dental prostheses: comparison of the silicone replica technique and three-dimensional superimposition analysis. J Adv Prosthodont. 2017;9:159-169.   DOI
12 Kim DY, Sin CH, Jung ID, Kim JH, Kim WC. Evaluation of marginal and internal gap of Cobalt-Chromium sintering metal coping fabricated by dental CAD/CAM system. J Dent Hyg Sci. 2015;15:536-541.   DOI
13 Ghodsi S, Pirmoazen S, Beyabanaki E, Rostami M, Alikhasi M. The effect of milling metal versus milling wax on implant framework retention and adaptation. J Prosthodont. 2019;28:e739-e743.   DOI
14 McLean JW, von Fraunhofer JA. The estimation of cement film thickness by an in vivo technique. Br Dent J. 1971;131:107-111.   DOI
15 Yang JH, Yeo IS, Lee SH, Han JS, Lee JB. Marginal fit of Celay/in-Ceram, conventional In-Ceram and Empress 2 all-ceramic single crowns. J Korean Acad Prosthodont. 2002;40:131-139.
16 Besimo C, Jeger C, Guggenheim R. Marginal adaptation of titanium frameworks produced by CAD/CAM techniques. Int J Prosthodont. 1997;10:541-546.
17 Kim JE, Kim SY, Lee CH. The effect of heat and press-onmetal technique on marginal fit of metal-ceramic crown. J Korean Acad Prosthodont. 2014;52:90-96.   DOI
18 Kim KB, Kim JH, Kim WC, Kim HY, Kim JH. Evaluation of the marginal and internal gap of metal-ceramic crown fabricated with a selective laser sintering technology: two- and three-dimensional replica techniques. J Adv Prosthodont. 2013;5:179-186.   DOI