Intraoral scanner-based monitoring of tooth wear in young adults: 24-month results

Clinical Oral Investigations · 5 authors, 3 centres

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TL;DR

This prospective observational study used intraoral scanners to monitor the occlusal surface of a mandibular first molar in 81 young adults over 24 months, finding a significant but reduced progression of tooth wear compared to the first year.

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The study monitored tooth wear on a mandibular first molar in 81 young adults over 24 months using intraoral scanning. The buccal load-bearing cusps, especially the mesiobuccal, showed the highest wear. While wear progressed significantly from 12 to 24 months, the rate of progression was significantly less than in the first 12 months. Males had significantly higher loss values than females, but no other aetiological factors from the questionnaire were significantly associated with wear.

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cohort

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ophthalmology

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ORIGINAL PAPER

PMC10264267

Intraoral scanner-based monitoring of tooth wear in young adults: 24-month results

Clinical Oral Investigations

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ABSTRACT

Abstract Objectives Tooth wear causes irreversible cumulated surface loss and already occurs at a young age. Therefore, the objective of this clinical prospective observational study was to monitor the occlusal surface of a mandibular first molar in young adults for a period of 24 months. Furthermore, potential aetiological factors obtained by a questionnaire were considered. Materials and methods The study teeth (FDI #36 or #46) of 81 participants (mean age 22.8 ± 2.2 years) were scanned with the intraoral scanner (IOS, Trios 3, 3Shape) at the second follow-up (T2) after an observation period of 24 months. Standard-tessellation-language datasets were superimposed with baseline (T0) and T2 scans in 3D analysis software (GOM Inspect). The maximum vertical substance loss was measured between T0 and T2 at 6/7 areas (4/5 cusps and 2 ridges) of each study tooth and data compared to the already published data of the first follow-up (T1) after 12-month observation period. The morphology of tooth wear was classified into three groups: cupping (C), facet (F) and combined cupping-facet (CF). The analysis of aetiological factors, such as acid impacts, was based on a questionnaire filled out by participants at time points T0, T1 and T2. Non-parametric tests were used for statistical analysis ( p < 0.05). Results The buccal load-bearing cusps (mesiobuccal: median 15 μm, 95%CI 11/18 μm; mesiolingual 8 μm, 0/11 μm) were most affected by tooth wear. Loss values increased significantly at T2 compared to T1 for all areas, although significantly less than in the first 12 months (T0–T1). Areas that already exhibited F at T0 mostly displayed them also at T2 and only rarely developed further into C or CF. The only association between aetiological factors and loss values could be detected for sex as males had significantly higher loss values than females. Conclusions Progression of tooth wear could be clearly shown with high interindividual variations in loss values among participants. This indicates the need for individual monitoring with IOS. Clinical relevance IOSs show the potential for patient-specific monitoring to detect the progression of tooth wear. Thus, data of 24 months fills the gap of tooth wear data for young adults in literature. Further studies over a longer observation period are highly recommended to gain more information about the dynamic of tooth wear and aetiological factors. Keywords: Tooth wear, Erosion, Attrition, Young adults, Intraoral scanner, Monitoring

CITATION EXPORT

Maximiliane Amelie Schlenz, Moritz Benedikt Schlenz, Bernd Wöstmann et al.. Intraoral scanner-based monitoring of tooth wear in young adults: 24-month results. Clinical Oral Investigations. (2023). https://doi.org/10.1007/s00784-023-04858-x

AUTHORS

5 · 3 CENTRES

Maximiliane Amelie Schlenz, Moritz Benedikt Schlenz, Bernd Wöstmann, Anna Sophia Glatt, Carolina Ganss

1Department of Prosthodontics, Dental Clinic of the Justus Liebig University Giessen, Schlangenzahl 14, 35392, Giessen, Germany
2Department of Conservative and Preventive Dentistry, Dental Clinic of the Justus Liebig University Giessen, Giessen, Germany
3Department of Operative Dentistry, Endodontics and Paediatric Dentistry, Section Cariology, Dental Clinic of the Philipps-University Marburg, Marburg, Germany