Comparing the reliability and accuracy of clinical measurements using plaster model and the digital model system based on crowding severity
| Autor: | Yu Ming Liang, Tzu-Ying Wu, Lalita Rutchakitprakarn, Shou-Hsin Kuang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Correlation coefficient
Model system Orthodontics 03 medical and health sciences 0302 clinical medicine Medicine Humans Odontometry Computer Simulation Reliability (statistics) Dental Casting Technique lcsh:R5-920 business.industry Reproducibility of Results 030206 dentistry General Medicine Crowding Plaster Casts Models Dental Casts Surgical Mann–Whitney U test Calipers business lcsh:Medicine (General) 030217 neurology & neurosurgery Student's t-test Malocclusion |
| Zdroj: | Journal of the Chinese Medical Association, Vol 81, Iss 9, Pp 842-847 (2018) |
| ISSN: | 1726-4901 |
| Popis: | Background: This study aims to clarify whether 3Shape™ digital model system could be applied in orthodontic diagnostic analysis with certainty, especially under different crowding condition. Reliability, accuracy and efficiency of 3Shape™ digital model system were assessed by comparing them with traditional plaster cast. Methods: 29 plaster casts with permanent dentition were transformed into digital models by 3Shape™ D800 scanner. All 29 models were categorized into mild-crowding (arch length discrepancy 3 mm and 8 mm). Fourteen linear measurements were made manually using a digital caliper on plaster casts and virtually using the 3Shape™ Ortho Analyzer software by two examiners. Intra-class Correlation Coefficient (ICC) was used to evaluate intra-examiner reliability, inter-examiner reliability and reliability between two model systems. Paired t test was used to evaluate accuracy between two model systems. Kruskal–Wallis test followed by Mann–Whitney U test was used to evaluate the measurement differences between 3 groups in two model systems. Results: Both intra-examiner and inter-examiner reliability were generally excellent for all measurements made on 3Shape™ digital model and plaster cast (ICC: 0.752–0.993). Reliability between different model systems was also excellent (ICC: 0.897–0.998). Half of the accuracy test showed statistically significant differences (p |
| Databáze: | OpenAIRE |
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