Technical quality of root fillings performed by dental students at the dental teaching centre in Reims, France

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Abstract
Aim  To evaluate the technical quality of root fillings performed by undergraduate students at a dental teaching centre in France.Methodology  A random sample of 419 records of patients who received dental treatment at the dental service of the teaching Hospital, in Reims, France between 2005 and 2006 was investigated. Evaluation of root filled was based on radiographical criteria defined by the French National Health Service. The length of root fillings, the radiodensity and the presence of voids in the root filling or between root filling and root canal walls were recorded and scored. Chi‐square analysis was used to determine statistically significant differences between the technical quality of root fillings and tooth type.Results  Of the 304 teeth included in the study, 69% had an adequate length of root filling and 42.7% had a dense root filling without voids; only 30.3% of teeth fulfilled these criteria at the same time. The relationship between the technical quality of root fillings and tooth type was statistically significant (P < 0.001), the highest percentage of adequate root fillings occurred in single‐rooted teeth (36.1%). The highest percentage of inadequate root fillings according to the criteria of root filling length and lateral adaptation was found in molar teeth (71.9%).Conclusion  Overall, the technical quality of root fillings performed by undergraduate students was poor.

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