Does the traditional or digital dental model measurement method affect the results?: A validation study

Karslı N., Yurdakul Z., Gonca M., Çava K.

European annals of dental sciences (Online), cilt.50, sa.2, ss.87-94, 2023 (Hakemli Dergi) identifier

Özet

The aim of this study is to evaluate the accuracy, reliability and reproducibility ofmeasurements made on digitalmodels obtained

using OrthoAnalyzer (3Shape, Copenhagen, Denmark) andMaterialize 3-matic (MIMICS®, Leuven, Belgium) software by

comparing them withmeasurements made on dental plastermodels. The teeth of 50 individuals weremeasured and plaster

models were obtained. In addition, digital images were obtained fromthe patients with Trios intraoral scanner. A total of 30 linear

measurements were made using OrthoAnalyzer andMaterialize 3-matic software, including themesiodistal width of the teeth,

arch perimeter, intercanine and intermolar distances. Allmeasurements were made by two different examiners. For the first and

secondmeasurements of the first examiner, intraexaminer reliability was calculated using intra-class correlation coefficients

(ICCs), two-way mixedmodel, consistency type. The largestmean difference betweenMaterialize 3-matic and caliper

measurements was -0.136mmin maxillary right first premolar and maxillary left lateral incisor. The smallestmean difference

was -0.0029mmin the mandibular left lateral incisor. In transversemeasurements, the largestmean difference was found in the

upper intercanine distance of 0.117 mm, and the smallestmean difference was -0.0086mmin the upper intermolar distance. The

largestmean difference between OrthoAnalyzer and calipermeasurements was 0.107mmin the maxillary right lateral incisor, and

the smallestmean difference was -0.0049mmin the maxillary left lateral incisor. Linear distancemeasurements with

three-dimensional digitalmodels are a valid, reliable and reproduciblemethod compared to plastermodels.