Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555634
Title: The optimal media for rating dental arch relationships in unilateral cleft lip and palate
Author: Chawla, Ourvinder
Awarding Body: University of Bristol
Current Institution: University of Bristol
Date of Award: 2011
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Abstract:
The aim of this study was to determine the optimal format for presenting the 5-year olds' Index reference and patient dental models, for the assessment of dental arch relationships in unilateral cleft lip and palate (UCLP). The research was essentially undertaken in two parts. The first part, to assess the effect the presentation of the reference models has on the reliability and reproducibility of the 5-year olds' Index scores. Reference models were presented in four different formats; plaster models, coloured acrylic models and two digital formats which included three-dimensional digital models (3D) and black & white photographs. These formats were used to categorise plaster models of patients born with UCLP. The second part set out to determine the effect of the presentation of the sample format on the reliability and reproducibility of the 5-year olds' Index scores. Patient models were presented in both 3D digital and plaster models and scored using the reference models in the same two formats as the patient models. The same examiners were used in both parts of the investigation, which comprised experienced and inexperienced examiners. The level of agreement for the digital formats of the 5-year olds' Index was good to very good with the less experienced examiners, in general, demonstrating lower kappa values compared to the experienced examiners. Scoring the 3D digital patient models with the 5-year olds' Index in the same format was associated with a learning curve with general improvements in scores noted on the second occasion. Overjet measure was reported as the most difficult parameter to assess using the 3D digital models followed by assessment of buccal crossbites.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.555634  DOI: Not available
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