Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment Outcomes
Objective. This study aimed to compare the use of digital models and plaster casts in assessing the improvement in occlusion following orthodontic treatment. Materials and Methods. Digital models and plaster casts of 39 consecutive patients at pre- and posttreatment stages were obtained and assessed...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2018/9819384 |
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| _version_ | 1832554874141671424 |
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| author | Chung-Yan Vanessa Leung Yanqi Yang Chongshan Liao Urban Hägg Ricky Wing Kit Wong Colman McGrath Min Gu |
| author_facet | Chung-Yan Vanessa Leung Yanqi Yang Chongshan Liao Urban Hägg Ricky Wing Kit Wong Colman McGrath Min Gu |
| author_sort | Chung-Yan Vanessa Leung |
| collection | DOAJ |
| description | Objective. This study aimed to compare the use of digital models and plaster casts in assessing the improvement in occlusion following orthodontic treatment. Materials and Methods. Digital models and plaster casts of 39 consecutive patients at pre- and posttreatment stages were obtained and assessed using the Peer Assessment Rating (PAR) index and the Index of Complexity and Treatment Need (ICON). PAR and ICON scores were compared at individual and group levels. Categorization of improvement level was compared using Kappa (κ) statistics. Results. There was no significant difference in neither PAR scores (p > 0.05) nor ICON scores (p > 0.05) between digital and plaster cast assessments. The Intraclass Correlation Coefficient (ICC) values for changes in PAR and ICON scores were excellent (ICC > 0.80). Agreement of ratings of occlusal improvement level between digital and plaster model assessments was 0.83 (κ) for PAR and 0.59 (κ) for ICON, respectively. Conclusion. The study supported the use of digital models as an alternative to plaster casts when assessing changes in occlusion at the ‘individual patient’ level using ICON or PAR. However, it could not fully support digital models as an alternate to plaster casts at ‘the group level’ (as in the case of clinical audit/research). |
| format | Article |
| id | doaj-art-fae63b9c5565417b96b81fa0eba7c417 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-fae63b9c5565417b96b81fa0eba7c4172025-02-03T05:50:23ZengWileyThe Scientific World Journal2356-61401537-744X2018-01-01201810.1155/2018/98193849819384Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment OutcomesChung-Yan Vanessa Leung0Yanqi Yang1Chongshan Liao2Urban Hägg3Ricky Wing Kit Wong4Colman McGrath5Min Gu6Orthodontics, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong KongOrthodontics, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong KongOrthodontics, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong KongOrthodontics, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong KongDepartment of Dentistry and Maxillofacial Surgery Cleft Center (Craniofacial Orthodontics), United Christian Hospital, 130 Hip Wo Street, Kwun Tong, Kowloon, Hong KongDental Public Health, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong KongOrthodontics, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong KongObjective. This study aimed to compare the use of digital models and plaster casts in assessing the improvement in occlusion following orthodontic treatment. Materials and Methods. Digital models and plaster casts of 39 consecutive patients at pre- and posttreatment stages were obtained and assessed using the Peer Assessment Rating (PAR) index and the Index of Complexity and Treatment Need (ICON). PAR and ICON scores were compared at individual and group levels. Categorization of improvement level was compared using Kappa (κ) statistics. Results. There was no significant difference in neither PAR scores (p > 0.05) nor ICON scores (p > 0.05) between digital and plaster cast assessments. The Intraclass Correlation Coefficient (ICC) values for changes in PAR and ICON scores were excellent (ICC > 0.80). Agreement of ratings of occlusal improvement level between digital and plaster model assessments was 0.83 (κ) for PAR and 0.59 (κ) for ICON, respectively. Conclusion. The study supported the use of digital models as an alternative to plaster casts when assessing changes in occlusion at the ‘individual patient’ level using ICON or PAR. However, it could not fully support digital models as an alternate to plaster casts at ‘the group level’ (as in the case of clinical audit/research).http://dx.doi.org/10.1155/2018/9819384 |
| spellingShingle | Chung-Yan Vanessa Leung Yanqi Yang Chongshan Liao Urban Hägg Ricky Wing Kit Wong Colman McGrath Min Gu Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment Outcomes The Scientific World Journal |
| title | Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment Outcomes |
| title_full | Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment Outcomes |
| title_fullStr | Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment Outcomes |
| title_full_unstemmed | Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment Outcomes |
| title_short | Digital Models as an Alternative to Plaster Casts in Assessment of Orthodontic Treatment Outcomes |
| title_sort | digital models as an alternative to plaster casts in assessment of orthodontic treatment outcomes |
| url | http://dx.doi.org/10.1155/2018/9819384 |
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