Effect of scan path on accuracy of complete arch intraoral scan
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
PURPOSE. This study aimed to compare the accuracy of an alternative scan path with that of traditional scan paths to obtain a more accurate method for complete arch scans. MATERIALS AND METHODS. A mandibular stone cast, including tooth preparations for the inlay, crown, and fixed prosthesis, was scanned 10 times using four different scan paths (A, B, C, and D). The scans were converted into stereolithography files, resized, and superimposed onto a control file obtained from a desktop scanner. The scan time, total surface deviation, and local deviation of the mandibular teeth were measured. One-way analysis of variance (ANOVA) and Welch ANOVA were used for statistical analyses (α = .05). The relative standard deviation and standard error of the mean were calculated to evaluate accuracy. RESULTS. The total surface deviation differed significantly according to the scanning path despite a similar scan time. Path D had the highest accuracy and the most uniform color maps, showing minimal deformation of the digital model. Meanwhile, no significant differences were found in the local deviations in the individual tooth assessments, likely owing to issues with the superimposition method. CONCLUSION. Among all scan paths, the scan path with the shortest distance from the starting point to the end point showed the smallest total surface deviation and the highest accuracy. No differences were observed in the deviations of specific teeth based on the scan path
Abstract
PURPOSE. This study aimed to compare the accuracy of an alternative scan path with that of traditional scan paths to obtain a more accurate method for complete arch scans. MATERIALS AND METHODS. A mandibular stone cast, including tooth preparations for the inlay, crown, and fixed prosthesis, was scanned 10 times using four different scan paths (A, B, C, and D). The scans were converted into stereolithography files, resized, and superimposed onto a control file obtained from a desktop scanner. The scan time, total surface deviation, and local deviation of the mandibular teeth were measured. One-way analysis of variance (ANOVA) and Welch ANOVA were used for statistical analyses (α = .05). The relative standard deviation and standard error of the mean were calculated to evaluate accuracy. RESULTS. The total surface deviation differed significantly according to the scanning path despite a similar scan time. Path D had the highest accuracy and the most uniform color maps, showing minimal deformation of the digital model. Meanwhile, no significant differences were found in the local deviations in the individual tooth assessments, likely owing to issues with the superimposition method. CONCLUSION. Among all scan paths, the scan path with the shortest distance from the starting point to the end point showed the smallest total surface deviation and the highest accuracy. No differences were observed in the deviations of specific teeth based on the scan path
참고문헌 (29)
- Susic I, "The application of CAD", CAM technology in dentistry, 2017, pp.200, 012020~
- Seelbach P, "Accuracy of digital and conventional impression techniques and workflow", Clin Oral Investig, 17, pp.1759~1764 (2013)
- Pesce P, "Precision and accuracy of a digital impression scanner in full-arch implant rehabilitation", Int J Prosthodont, 31, pp.171~175 (2018)
- Renne W, "Evaluation of the accuracy of 7 digital scanners : an in vitro analysis based on 3-dimensional comparisons", J Prosthet Dent, 118, pp.36~42 (2017)
- Park JM, "Comparative reproducibility analysis of 6 intraoral scanners used on complex intracoronal preparations", J Prosthet Dent, 123, pp.113~120 (2020)
- Ahlholm P, "Digital versus conventional impressions in fixed prosthodontics : a review", J Prosthodont, 27, pp.35~41 (2018)
- Chochlidakis KM, "Digital versus conventional impressions for fixed prosthodontics : a systematic review and meta-analysis", J Prosthet Dent, 116, pp.184~190 (2016)
- Kihara H, "Accuracy and practicality of intraoral scanner in dentistry : a literature review", J Prosthodont Res, 64, pp.109~113 (2020)
- Menditto A, "Understanding the meaning of accuracy, trueness and precision", Accredit Qual Assur, 12, pp.45~47 (2007)
- Prenesti E, "Trueness, precision and accuracy : A critical overview of the concepts as well as proposals for revision", Accredit Qual Assur, 20, pp.33~40 (2015)
- Wu MT, "Scan time and accuracy of full-arch scans with intraoral scanners : a comparative study on conditions of the intraoral head-simulator and the hand-held model", Zhonghua Kou Qiang Yi Xue Za Zhi, 56, pp.570~575 (2021)
- Mai HY, "Impact of scanning strategy on the accuracy of complete-arch intraoral scans : a preliminary study on segmental scans and merge methods", J Adv Prosthodont, 14, pp.88~95 (2022)
- Cortes ARG, "Factors affecting trueness of intraoral scans : An update", Appl Sci, 12, pp.6675~ (2022)
- Abduo J, "Accuracy of intraoral scanners : a systematic review of influencing factors", Eur J Prosthodont Restor Dent, 26, pp.101~121 (2018)
- Angelone F, "Diagnostic applications of intraoral scanners : a systematic review", J Imaging, 9, pp.134~ (2023)
- Goracci C, "Accuracy, reliability, and efficiency of intraoral scanners for fullarch impressions : a systematic review of the clinical evidence", Eur J Orthod, 38, pp.422~428 (2016)
- Van der Meer WJ, "Application of intra-oral dental scanners in the digital workflow of implantology", PLoS One, 7, pp.e43312~ (2012)
- Waldecker M, "Influence of artificial landmarks on the accuracy of complete arch scans in the partially edentulous maxilla : An in vitro study", J Prosthet Dent, 132, pp.829~837 (2024)
- Mai HN, "Effects of image and education on the precision of the measurement method for evaluating prosthesis misfit", J Prosthet Dent, 119, pp.600~605 (2018)
- Park JS, "A review on the accuracy assessment methods of 3-dimensional digital dental models", J Dent Rehabil Appl Sci, 35, pp.55~63 (2019)
- Müller P, "Impact of digital intraoral scan strategies on the impression accuracy using the TRIOS Pod scanner", Quintessence Int, 47, pp.343~349 (2016)
- Imburgia M, "Continuous Scan Strategy(CSS) : a novel technique to improve the accuracy of intraoral digital impressions", Eur J Prosthodont Restor Dent, 28, pp.128~141 (2020)
- Mandelli F, "Full-arch intraoral scanning : comparison of two different strategies and their accuracy outcomes", J Osseointegr, 10, pp.65~74 (2018)
- Gavounelis NA, "The effect of scanning strategy on intraoral scanner’s accuracy", Dent J(Basel), 10, pp.123~ (2022)
- Rotar RN, "Scanning distance influence on the intraoral scanning accuracy-an in vitro study", Materials(Basel), 15, pp.3061~ (2022)
- Imburgia M, "Accuracy of four intraoral scanners in oral implantology : a comparative in vitro study", BMC Oral Health, 17, pp.92~ (2017)
- Schmalzl J, "The impact of software updates on accuracy of intraoral scanners", BMC Oral Health, 23, pp.219~ (2023)
- Narkbuakaew W, "A combination of a 3D surface model and CBCT images for dental applications using VTK library", Paper presented at: 2022 14th Biomedical Engineering International Conference (BMEiCON), pp.1~4 (2022)
- Revilla-León M, "Best-fit algorithm influences on virtual casts’ alignment discrepancies", J Prosthodont, 32, pp.331~339 (2023)