Abstract
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.
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.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 155 |
| Tidsskrift | European Journal of Orthodontics |
| Vol/bind | 41 |
| Nummer | 5 |
| Sider (fra-til) | e70-e71 |
| Antal sider | 2 |
| ISSN | 0141-5387 |
| DOI | |
| Status | Udgivet - 2019 |
| Begivenhed | EUROPEAN ORTHODONTIC SOCIETY 95th Congress - Nice, Frankrig Varighed: 17 jun. 2019 → 22 jun. 2019 |
Konference
| Konference | EUROPEAN ORTHODONTIC SOCIETY 95th Congress |
|---|---|
| Land/Område | Frankrig |
| By | Nice |
| Periode | 17/06/2019 → 22/06/2019 |