Investigation into the validity of WearCompare, a purpose-built software to quantify erosive tooth wear progression

O’Toole, Saoirse; Osnes, Cecilie; Bartlett, David; Keeling, Andrew

doi:10.1016/j.dental.2019.07.023

Cited by 30 publications

(26 citation statements)

References 26 publications

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“…Thus, even in the unfavorable scenario of extensive changes in non-occlusal surfaces, this method performs quite satisfactorily. A freeware and easy to use software (WearCompare, School of Dentistry, University of Leeds, Leeds, UK) [27] providing tooth wear measurements, following serial tooth surface model superimpositions, showed high performance when identical (duplicated) surfaces were used as superimposition references. However, when the original position of the duplicated models was altered, the software showed errors in volumetric assessment as high as 1 mm 3 .…”

Section: Discussionmentioning

confidence: 99%

3D Method for Occlusal Tooth Wear Assessment in Presence of Substantial Changes on Other Tooth Surfaces

Gkantidis

Dritsas

Katsaros

et al. 2020

JCM

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Early diagnosis and timely management of tooth or dental material wear is imperative to avoid extensive restorations. Previous studies suggested different methods for tooth wear assessment, but no study has developed a three-dimensional (3D) superimposition technique applicable in cases where tooth surfaces, other than the occlusal, undergo extensive morphological changes. Here, we manually grinded plaster incisors and canines to simulate occlusal tooth wear of varying severity in teeth that received a wire retainer bonded on their lingual surfaces, during the assessment period. The corresponding dental casts were scanned using a surface scanner. The modified tooth crowns were best-fit approximated to the original crowns using seven 3D superimposition techniques (two reference areas with varying settings) and the gold standard technique (GS: intact adjacent teeth and alveolar processes as superimposition reference), which provided the true value. Only a specific technique (complete crown with 20% estimated overlap of meshes), which is applicable in actual clinical data, showed perfect agreement with the GS technique in all cases (median difference: −0.002, max absolute difference: 0.178 mm3). The outcomes of the suggested and the GS technique were highly reproducible (max difference < 0.040 mm3). The presented technique offers low cost, convenient, accurate, and risk-free tooth wear assessment.

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Section: Discussionmentioning

confidence: 99%

3D Method for Occlusal Tooth Wear Assessment in Presence of Substantial Changes on Other Tooth Surfaces

Gkantidis

Dritsas

Katsaros

et al. 2020

JCM

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“…A more suitable method would be to capture 3-D images using scanners, which has already been suggested as the preferred method for measurement of tooth wear [DeLong, 2006]. To monitor wear in various contexts, the majority of studies have used 3-D datasets of study models [Wulfman et al, 2018;O'Toole et al, 2019a;Marro et al, 2020]. However, dimensional changes in the materials might affect the accuracy, especially at the micrometer level.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of Erosive Tooth Wear with Intraoral Scanners In vitro

et al. 2021

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Intraoral scanners (IOS) have been used to quantify tooth wear, but so far they have not been systematically validated for monitoring of tissue loss. The aim of this in vitro study was to investigate whether progression of tissue loss can be detected with an IOS and whether IOS values agree with those obtained with noncontacting profilometry (PRO) serving as a standard method. Model jaws were mounted in a phantom head positioned in a dental chair. Flattened areas were prepared on the non-load-bearing cusps of the first molars (model teeth; n = 16) in order to fix flat enamel samples with an experimental area and a reference area. After baseline PRO and IOS, the experimental enamel area was stepwise etched with 35% H3PO4 gel (4 × 30 s and 4 × 15 s). After each etching, PRO and IOS was performed and the vertical tissue loss between the reference and experimental areas was measured, each at the same 3 measurement points. Furthermore, cupped cusps were simulated by stepwise preparation of the load-bearing cusps of the model teeth with a spherical diamond bur, and the maximum vertical depth after each preparation step was measured only by IOS. Trios3 (3Shape, Denmark), Carestream CS3600 (Carestream, USA) and an optical profilometer (MicroProf, Fries, Germany) were used to measure the flat areas of the enamel samples, whereas only IOS were used to measure curved surfaces on the load-bearing cupped cusps of the model teeth. The IOS data were analyzed with an external software (GOM Inspect, Germany) and with the respective internal IOS software. PRO revealed a mean (±SD) tissue loss of 17.1 ± 4.7 µm after 30-s etching steps and 10.1 ± 5.1 µm after the 15-s etching steps. IOS and software types were able to detect the progression of tissue loss after each etching step (p ≤ 0.001 each); Bland-Altmann plots revealed good agreement with PRO regardless of the order of tissue loss, and no systematic difference was found. Increasing cupped lesion depths were detected by all IOS, with no significant differences between IOS and analysis methods. IOS were able to detect small amounts of tissue loss under simulated clinical conditions and seem to be a promising tool for monitoring even initial erosive tooth wear.

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“…The IOS scan of each occlusal molar surface was aligned and measured individually in WearCompare (www.leedsdigitaldentistry.com/WearCompare) using a previously validated selective surface alignment protocol [14,15]. Initially a global alignment between the two scans at separate time points was performed to bring the two scans into closer approximation.…”

Section: Methodsmentioning

confidence: 99%

“…The occlusal surface of the lower first molar is a known index surface when assessing ETW [20]. There are also several published and validated protocols assessing the occlusal surfaces of the molar teeth [14]. Wear rates reported may or may not be generalizable to other surfaces and this will need to be an area for further research.…”

Section: Both Measurement Metrics Offer Good Predictive Valuesmentioning

confidence: 99%

Quantifying increased rates of erosive tooth wear progression in the early permanent dentition

Marro

Jacquet

Martens

et al. 2020

Journal of Dentistry

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Investigation into the validity of WearCompare, a purpose-built software to quantify erosive tooth wear progression

Abstract: This is a repository copy of Investigation into the validity of WearCompare, a purpose-built software to quantify erosive tooth wear progression.

Cited by 30 publications

References 26 publications

3D Method for Occlusal Tooth Wear Assessment in Presence of Substantial Changes on Other Tooth Surfaces

3D Method for Occlusal Tooth Wear Assessment in Presence of Substantial Changes on Other Tooth Surfaces

Monitoring of Erosive Tooth Wear with Intraoral Scanners In vitro

Quantifying increased rates of erosive tooth wear progression in the early permanent dentition

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