Browse > Article
http://dx.doi.org/10.14368/jdras.2018.34.3.157

Comparative study of two CAD software programs on consistency between custom abutment design and the output  

Lim, Hyun-Mi (Department of Prosthodontics, School of Dentistry, Kyungpook National University)
Lee, Kyu-Bok (Department of Prosthodontics, School of Dentistry, Kyungpook National University)
Lee, Wan-Sun (Advanced Dental Device Development Institute, Kyungpook National University)
Son, KeunBaDa (Advanced Dental Device Development Institute, Kyungpook National University)
Publication Information
Journal of Dental Rehabilitation and Applied Science / v.34, no.3, 2018 , pp. 157-166 More about this Journal
Abstract
Purpose: This study was aimed to compare the consistency between the custom abutment design and the output in two CAD software programs. Materials and Methods: Customized abutments were designed by using 3Shape Dental System CAD software and Delta9 CAD software on a plaster model with implants (CRM STL file). After milling of the designed abutments, the abutments were scanned with a contact method scanner (Test STL file). We overlaid the Test STL file with each CRM STL file by using inspection software, and then compared the milling reproducibility by measuring the output error of the specimens from each CAD software program. Results: The Delta9 showed better milling reproducibility than 3Shape when comparing the milling errors obtained with a full scan of all specimens (P < .05) and also when comparing the axial wall region specifically according to the axial angle. With 0.9 mm marginal radius, the Delta9 showed better consistency between the design and the output than 3Shape (P < .05). While, anti-rotation form had no significant difference in error between the two systems. When cumulative errors were compared, the Delta9 showed better milling reproducibility in almost cases (P < .05). Conclusion: Delta9 showed a significantly smaller error for most of the abutment design options. This means that it is possible to facilitate generation of printouts with reliable reproducibility and high precision with respect to the planned design.
Keywords
CAD software; titanium custom abutment; precise reproducibility; 3D evaluation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kim JW, Heo YR, Kim HJ, Chung CH. A comparative study on the fit and screw joint stability of ready-made abutment and CAD-CAM custommade abutment. J Korean Acad Prosthodont 2013;51:276-83.   DOI
2 Priest G. Virtual-designed and computer-milled implant abutments. J Oral Maxillofac Surg 2005;63:22-32.
3 Alshhrani WM, Al Amri MD. Customized CADCAM healing abutment for delayed loaded implants. J Prosthet Dent 2016;116:176-9.   DOI
4 Thulasidas S, Givan DA, Lemons JE, O'Neal SJ, Ramp LC, Liu PR. Influence of implant angulation on the fracture resistance of zirconia abutments. J Prosthodont 2015;24:127-35.   DOI
5 Vinnakota DN. Effect of preparation convergence on retention of multiple unit restorations-An in vitro study. Contemp Clin Dent 2015;6:409-13.   DOI
6 Alghazzawi TF. Advancements in CAD/CAM technology: options for practical implementation. J Prosthodont Res 2016;60:72-84.   DOI
7 Corazza PH, Feitosa SA, Borges AL, Della Bona A. Influence of convergence angle of tooth preparation on the fracture resistance of Y-TZP-based allceramic restorations. Dent Mater 2013;29:339-47.   DOI
8 Tiu J, Al-Amleh B, Waddell JN, Duncan WJ. Reporting numeric values of complete crowns. Part 2: Retention and resistance theories. J Prosthet Dent 2015;114:75-80.   DOI
9 Shillingburg HT, Sather DA, Wilson EL, Cain JR, Mitchell DL, Blanco LJ, Kessler JC. Fundamentals of fixed prosthodontics. 4th ed. Hanover Park; Quintessence; 2012. p. 132-3.
10 Yamanishi Y, Yamaguchi S, Imazato S, Nakano T, Yatani H. Effects of the implant design on periimplant bone stress and abutment micromovement: three-dimensional finite element analysis of original computer-aided design models. J Periodontol 2014;85:e333-8.   DOI
11 Komine F, Iwai T, Kobayashi K, Matsumura H. Marginal and internal adaptation of zirconium dioxide ceramic copings and crowns with different finish line designs. Dent Mater J 2007;26:659-64.   DOI
12 Beuer F, Aggstaller H, Edelhoff D, Gernet W. Effect of preparation design on the fracture resistance of zirconia crown copings. Dent Mater J 2008;27:362-7.   DOI
13 May KB, Russell MM, Razzoog ME, Lang BR. Precision of fit: the Procera AllCeram crown. J Prosthet Dent 1998;80:394-404.   DOI
14 Lee GT, Kim JH, Kim WC, Kim JH. Three-dimensional evaluation on the repeatability and reproducibility of dental scanner-based digital models. J Korean Acad Dent Tech 2012;34:213-20.   DOI
15 Kim CM, Jeon JH, Lee JJ, Kim JH, Kim WC. Precision evaluation of crown prosthesis manufactured by two bur and three bur. J Korean Acad Dent Tech 2016;38:57-62.   DOI
16 Schaefer O, Watts DC, Sigusch BW, Kuepper H, Guentsch A. Marginal and internal fit of pressed lithium disilicate partial crowns in vitro: a three-dimensional analysis of accuracy and reproducibility. Dent Mater 2012;28:320-6.   DOI
17 International Organization for Standardization. ISO-12836:2015. Dentistry - digitizing devices for CAD/CAM systems for indirect dental restorations - Test methods for assessing accuracy. Available from: https://www.iso.org/standard/68414.html (updated 2018 Sep 12).
18 Persson A, Andersson M, Oden A, Sandborgh-Englund G. A three-dimensional evaluation of a laser scanner and a touch-probe scanner. J Prosthet Dent 2006;95:194-200.   DOI
19 Sahu N, Lakshmi N, Azhagarasan NS, Agnihotri Y, Rajan M, Hariharan R. Comparison of the effect of implant abutment surface modifications on retention of implant-supported restoration with a polymer based cement. J Clin Diagn Res 2014;8:239-42.
20 Enkling N, Ueda T, Gholami H, Bayer S, Katsoulis J, Mericske-Stern R. Precision of fit and retention force of cast non-precious-crowns on standard titanium implant-abutment with different design and height. Clin Oral Implants Res 2014;25:451-7.
21 Huh JB, Shim JS. The factors caused errors in the production process of CAD/CAM prosthesis based on experience. J Korean Dent Assoc 2014;52:332-45.