Coronectomy is the intentional partial removal of a tooth. Thereby the crown of the tooth is removed and the roots are left in place. Compared to the complete operative removal of a wisdom tooth, the incidence of inferior alveolar nerve injury (IANI) is lower. The aim of this study is a survey on the use and acceptance of wisdom tooth coronectomy in Switzerland. An anonymous questionnaire was sent to 266 dentists specialized in oral surgery or maxillofacial surgeons; 58.3% of the questionnaires were returned and could be assessed. The statistical analysis was performed using Fisher’s exact test. The technique was classified as «non-reliable» by 51.6% of the respondents. In cases manifesting a high risk of IANI, 40.6% offered the patient a coronectomy. In a tooth exhibiting a high risk of IANI, 69.0% could envisage to perform a coronectomy instead of a complete operative removal. The technique was not used by 54.8%. A significantly larger proportion of study participants who specialized in or after the year 2005 (p < 0.05) rated the technique as “reliable”. The same applied to respondents who specialized in Bern (p < 0.05) and those who already had used coronectomy (p < 0.001). In conclusion, our results show that the majority of maxillofacial and oral surgeons reject coronectomy. In view of recent studies, this attitude should be reconsidered.
Application and evaluation of coronectomy in Switzerland
The aim of this study is a survey on the use and acceptance of wisdom tooth coronectomy in Switzerland.