Different Methods of Scan Alignment in Erosive Tooth Wear Measurements: An In Vitro Study
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Different Methods of Scan Alignment in Erosive Tooth Wear Measurements : An In Vitro Study. / Loumprinis, Nikolaos; Michou, Stavroula; Rahiotis, Christos.
I: Dentistry Journal, Bind 12, Nr. 2, 34, 2024.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Different Methods of Scan Alignment in Erosive Tooth Wear Measurements
T2 - An In Vitro Study
AU - Loumprinis, Nikolaos
AU - Michou, Stavroula
AU - Rahiotis, Christos
PY - 2024
Y1 - 2024
N2 - BACKGROUND: Model alignment in cases of erosive tooth wear can be challenging, and no method has been reported to outweigh the others.METHODS: Extracted human teeth were mounted on two models and scanned at different times, from 1 h to 2 weeks, with an intraoral scanner (3Shape TRIOS 4) before and after immersion in Monster® energy drink and tap water. The scans were superimposed (3Shape TRIOS Patient Monitoring, Version 2.2.3.3, 3Shape A/S, Copengagen, Denmark). Best fit, best-fit tooth comparison, reference best fit using fillings, and palatal rugae as reference points were used for alignment. Surface profile differences were calculated in a cross-section view. The nonparametric Bland-Altman and Kruskal-Wallis tests were used.RESULTS: First, statistically significant differences were marked after 4 days of immersion. The measurements obtained after 2 weeks of immersion were statistically significantly different from the measurements obtained at the different time points until 1 week. No statistically significant differences (p < 0.05) were observed among the alignment methods at any time.CONCLUSION: In comparison to the best-fit model, both palatal rugae and fillings can be used. The best-fit tooth comparison method is a reliable option; however, it should be used with caution in cases of major surface loss.
AB - BACKGROUND: Model alignment in cases of erosive tooth wear can be challenging, and no method has been reported to outweigh the others.METHODS: Extracted human teeth were mounted on two models and scanned at different times, from 1 h to 2 weeks, with an intraoral scanner (3Shape TRIOS 4) before and after immersion in Monster® energy drink and tap water. The scans were superimposed (3Shape TRIOS Patient Monitoring, Version 2.2.3.3, 3Shape A/S, Copengagen, Denmark). Best fit, best-fit tooth comparison, reference best fit using fillings, and palatal rugae as reference points were used for alignment. Surface profile differences were calculated in a cross-section view. The nonparametric Bland-Altman and Kruskal-Wallis tests were used.RESULTS: First, statistically significant differences were marked after 4 days of immersion. The measurements obtained after 2 weeks of immersion were statistically significantly different from the measurements obtained at the different time points until 1 week. No statistically significant differences (p < 0.05) were observed among the alignment methods at any time.CONCLUSION: In comparison to the best-fit model, both palatal rugae and fillings can be used. The best-fit tooth comparison method is a reliable option; however, it should be used with caution in cases of major surface loss.
U2 - 10.3390/dj12020034
DO - 10.3390/dj12020034
M3 - Journal article
C2 - 38392238
VL - 12
JO - Dentistry Journal
JF - Dentistry Journal
SN - 2304-6767
IS - 2
M1 - 34
ER -
ID: 385504167