Accuracy and reproducibility of peer assessment rating index score measurements on three-dimensional digital models compared to printed physical models

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisKonferenceabstrakt i tidsskriftForskningpeer review

DOI

AIM:
To compare the accuracy and reproducibility of PAR index scores measured on digital models and their printed physical model equivalents.

MATERIALS AND METHOD:
Thirty pairs of pre- and post-treatment models were selected from the Section of Orthodontics’ archives. All digital impression files were generated with a TRIOS intraoral scanner (3Shape, Copenhagen, Denmark). Assessment of PAR index was carried out by two operators: first digitally using a built-in feature of OrthoAnalyzer software (3Shape, Copenhagen, Denmark) and then manually on printed physical models, using a digital caliper. All measurements were repeated after one week. Intraclass correlation coefficients (ICC) were used to test intra- and inter-observer reproducibility.

RESULTS:
The ICC was high for all recorded measurements. The inter-observer reproducibility was 0.985 with a 95% confidence interval (CI) of 0.968-0.993 for physical models, and 0.996 with CI of 0.991 - 0.998 for digital models. Intra-observer reproducibility was excellent both for physical (ICC =0.984) and digital models (ICC= 0.993).

CONCLUSIONS:
Measurement of PAR index on digital and physical models showed excellent reliability. PAR index measuring tool on Orthoanalyzer software proves to be accurate and reliable and should be considered a viable option for clinical application.
OriginalsprogEngelsk
Artikelnummer155
TidsskriftEuropean Journal of Orthodontics
Vol/bind41
Nummer5
Sider (fra-til)e70-e71
Antal sider2
ISSN0141-5387
DOI
StatusUdgivet - 2019
BegivenhedEUROPEAN ORTHODONTIC SOCIETY 95th Congress - Nice, Frankrig
Varighed: 17 jun. 201922 jun. 2019

Konference

KonferenceEUROPEAN ORTHODONTIC SOCIETY 95th Congress
LandFrankrig
ByNice
Periode17/06/201922/06/2019

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