Evaluation of the reproducibility of various abutments using a blue light model scanner
2
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
PURPOSE. To evaluate the reproducibility of scan-based abutments using a blue light model scanner. MATERIALS AND METHODS. A wax cast abutment die was fabricated, and a silicone impression was prepared using a silicone material. Nine study dies were constructed using the prepared duplicable silicone, and the first was used as a reference. These dies were classified into three groups and scanned using a blue light model scanner. The first three-dimensional (3D) data set was obtained by scanning eight dies separately in the first group. The second 3D data set was acquired when four dies were placed together in the scanner and scanned twice in the second group. Finally, the third 3D data set was obtained when eight dies were placed together in the scanner and scanned once. These data were then used to define the data value using third-dimension software. All the data were then analyzed using the non-parametric Kruskal–Wallis H test (α=.05) and the posthoc Mann-Whitney U-test with Bonferroni’s correction (α=.017). RESULTS. The means and standard deviations of the eight dies together were larger than those of the four dies together and of the individual die. Moreover, significant differences were observed among the three groups (P<.05). CONCLUSION. With larger numbers of abutments scanned together, the scan becomes more inaccurate and loses reproducibility. Therefore, scans of smaller numbers of abutments are recommended to ensure better results.
Abstract
PURPOSE. To evaluate the reproducibility of scan-based abutments using a blue light model scanner. MATERIALS AND METHODS. A wax cast abutment die was fabricated, and a silicone impression was prepared using a silicone material. Nine study dies were constructed using the prepared duplicable silicone, and the first was used as a reference. These dies were classified into three groups and scanned using a blue light model scanner. The first three-dimensional (3D) data set was obtained by scanning eight dies separately in the first group. The second 3D data set was acquired when four dies were placed together in the scanner and scanned twice in the second group. Finally, the third 3D data set was obtained when eight dies were placed together in the scanner and scanned once. These data were then used to define the data value using third-dimension software. All the data were then analyzed using the non-parametric Kruskal–Wallis H test (α=.05) and the posthoc Mann-Whitney U-test with Bonferroni’s correction (α=.017). RESULTS. The means and standard deviations of the eight dies together were larger than those of the four dies together and of the individual die. Moreover, significant differences were observed among the three groups (P<.05). CONCLUSION. With larger numbers of abutments scanned together, the scan becomes more inaccurate and loses reproducibility. Therefore, scans of smaller numbers of abutments are recommended to ensure better results.
참고문헌 (32)
- Hung SH, "Marginal fit of porcelain-fused-to-metal and two types of ceramic crown", J Prosthet Dent, 63, pp.26~31 (1990)[DOI]
- Tjan AH, "Marginal leakage of cast gold crowns luted with an adhesive resin cement", J Prosthet Dent, 67, pp.11~15 (1992)[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)[DOI]
- Hamza TA, "In vitro evaluation of marginal discrepancy of monolithic zirconia restorations fabricated with different CAD-CAM systems", J Prosthet Dent, 117, pp.762~766 (2017)[DOI]
- Liebermann A, "Physicomechanical characterization of polyetheretherketone and current esthetic dental CAD", CAM polymers after aging in different storage media, 2016, pp.115, 321~328
- Ruse ND, "Resin-composite blocks for dental CAD", CAM applications, 2014, pp.93, 1232~1234
- Ciocca L, "Work flow for the prosthetic rehabilitation of atrophic patients with a minimal-intervention CAD", CAM approach, 2015, pp.114, 22~26
- Gonzalez de Villaumbrosia P, "In vitro comparison of the accuracy (trueness and precision) of six extraoral dental scanners with different scanning technologies", J Prosthet Dent, 116, pp.543~550 (2016)[DOI]
- Goracci C, "Accuracy, reliability, and efficiency of intraoral scanners for full-arch impressions: a systematic review of the clinical evidence", Eur J Orthod, 38, pp.422~428 (2016)[DOI]
- Atia MA, "Validity of 3 shape scanner techniques: A comparison with the actual plaster study casts", Biom Biostat Int J, 2, pp.00026~ (2015)
- Jeon JH, "Three-dimensional evaluation of the repeatability of scanned conventional impressions of prepared teeth generated with white- and blue-light scanners", J Prosthet Dent, 114, pp.549~553 (2015)[DOI]
- Keeling A, "Confounding factors affecting the marginal quality of an intra-oral scan", J Dent, 59, pp.33~40 (2017)[DOI]
- Lee JJ, "Accuracy of single-abutment digital cast obtained using intraoral and cast scanners", J Prosthet Dent, 117, pp.253~259 (2017)[DOI]
- Lee WS, "New approach to accuracy verification of 3D surface models: An analysis of point cloud coordinates", J Prosthodont Res, 60, pp.98~105 (2016)[DOI]
- Mandelli F, "Evaluation of the accuracy of extraoral laboratory scanners with a singletooth abutment model: A 3D analysis", J Prosthodont Res, 61, pp.363~370 (2017)[DOI]
- Ender A, "In-vitro evaluation of the accuracy of conventional and digital methods of obtaining full-arch dental impressions", Quintessence Int, 46, pp.9~17 (2015)
- Jeon JH, "Three-dimensional evaluation of the repeatability of scans of stone models and impressions using a blue LED scanner", Dent Mater J, 34, pp.686~691 (2015)[DOI]
- 전진훈, "Repeatability and reproducibility of individual abutment impression, assessed with a blue light scanner", The Journal of Advanced of Prosthodontics, 8(3), pp.214~218 (2016), 대한치과보철학회[DOI]
- 전진훈, "White light scanner-based repeatability of 3-dimensional digitizing of silicon rubber abutment teeth impressions", The Journal of Advanced of Prosthodontics, 5(4), pp.452~456 (2013), 대한치과보철학회[DOI]
- Jeong ID, "Accuracy of complete-arch model using an intraoral video scanner: An in vitro study", J Prosthet Dent, 115, pp.755~759 (2016)[DOI]
- 전진훈, "Accuracy of 3D white light scanning of abutment teeth impressions: evaluation of trueness and precision", The Journal of Advanced of Prosthodontics, 6(6), pp.468~473 (2014), 대한치과보철학회[DOI]
- Rudolph H, "Accuracy of intraoral and extraoral digital data acquisition for dental restorations", J Appl Oral Sci, 24, pp.85~94 (2016)[DOI]
- Ulusoy AO, "Robust one-shot 3D scanning using loopy belief propagation", Proceedings of the computer vision and pattern recognition workshops, pp.15~22 (2010)
- Bae SY, "Three-dimensional analysis of marginal and internal fit of copings fabricated with polyetherketoneketone (PEKK) and zirconia", J Prosthodont Res, 61, pp.106~112 (2017)[DOI]
- Kim CM, "Threedimensional evaluation of the reproducibility of presintered zirconia single copings fabricated with the subtractive method", J Prosthet Dent, 116, pp.237~241 (2016)[DOI]
- Kim CM, "Trueness of milled prostheses according to number of ball-end mill burs", J Prosthet Dent, 115, pp.624~629 (2016)[DOI]
- Kim DY, "Reproducibility of different arrangement of resin copings by dental microstereolithography: Evaluating the marginal discrepancy of resin copings", J Prosthet Dent, 117, pp.260~265 (2017)[DOI]
- Kim DY, "Reproducibility of different coping arrangements fabricated by dental microstereolithography: Evaluation of marginal and internal gaps in metal copings", J Dent Sci (2017)
- 김동연, "Evaluation of marginal and internal gap of three-unit metal framework according to subtractive manufacturing and additive manufacturing of CAD", CAM systems, 2017, pp.9(6), 463~469[DOI]
- Kim DY, "Comparison and evaluation of marginal and internal gaps in cobalt-chromium alloy copings fabricated using subtractive and additive manufacturing", J Prosthodont Res, 62, pp.56~64 (2018)[DOI]
- 박진영, "Evaluation of the marginal and internal gaps of three different dental prostheses: comparison of the silicone replica technique and three-dimensional superimposition analysis", The Journal of Advanced of Prosthodontics, 9(3), pp.159~169 (2017), 대한치과보철학회[DOI]
- Trifkovic B, "Comparative analysis on measuring performances of dental intraoral and extraoral optical 3D digitization systems", Measurement, 47, pp.45~53 (2014)[DOI]