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Rubric system for evaluation of crown preparation performed by dental students
Author(s) -
Habib S. R.
Publication year - 2018
Publication title -
european journal of dental education
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 41
eISSN - 1600-0579
pISSN - 1396-5883
DOI - 10.1111/eje.12333
Subject(s) - rubric , prosthodontics , crown (dentistry) , fixed prosthodontics , dentistry , significant difference , orthodontics , medicine , statistical significance , analysis of variance , repeated measures design , dental education , psychology , mathematics education , mathematics , statistics
Objective This study aimed to investigate the use of an analytic rubric system for the evaluation of all‐ceramic crown preparation on the right maxillary central incisor performed by the dental students. Materials and Methods Seventy‐two‐third‐year students and 8 faculty members from prosthodontics participated in this double‐blind study. The students prepared an ivorine tooth # 11 for all‐ceramic crown. The students were given clear instructions regarding the all‐ceramic crown preparation and informed about the criteria for the assessment of the preparation. An analytic rubric based on 10‐point scale for assessment of various preparation parameters was used by the 8 examiners. Descriptive statistics, ANOVA and post hoc Tukey tests were used for statistical analysis. Results One‐way analysis of variance indicated significance amongst the examiners for all the parameters except for time management. The overall mean scoring by examiners was 7.60 ± 1.18, with highest and lowest mean scores for Examiner 1 (8.02 ± 1.06) and Examiner 4 (6.82 ± 1.50), respectively. The highest number of interexaminer variation (difference) in scoring was found for two plane reduction, and the least difference amongst the examiners was observed for finishing of margins and walls of the preparation. Examiner 4 had the highest number of significant difference with the rest of the examiners. The students scored least marks in axial reduction (56.33%) and preservation of adjacent teeth (66.9%). Conclusions Criteria‐based assessment using analytic rubric for crown preparations in pre‐clinical fixed prosthodontics is an effective tool for finding the errors/weak areas of dental students.