The purpose of the present study is to quantitatively evaluate the change in tooth extraction at school setting over the past 14 years.~Aims The aim of the present study is to investigate whether there has been a change of criteria for tooth extraction at Tufts University School of Dental Medicine (TUSDM) from 2005 to 2018. The primary outcome is the change of mean of radiographic interproximal bone loss of extracted teeth. The secondary outcomes are changes of other parameters (periodontal, endodontic and restorative) of extracted teeth and reasons for extraction.~Hypothesis Criteria for extraction of first molar teeth has changed between 2005 and 2018 toward early extraction of teeth with less severe periodontal and other conditions.~Significance Currently, there is not study presenting the quantified data for criteria change for tooth extraction. Also, determining whether to extract a tooth or not actually requires taking several clinical parameters into consideration. The present study will give clinicians a broad review of the change in clinical decision making for tooth extraction.~Materials and Methods Retrospective chart review among patients in TUSDM Pre-doctoral and Post-doctoral Group Practices The study setting is among patients who received dental treatments at TUSDM. The database will be retrospectively reviewed by patients' electronic records in TUSDM Postgraduate (PG) and Undergraduate (UG) clinics from 01/01/2005 till 12/31/2018.
The aim of the present study is to investigate whether there has been a change of criteria for tooth extraction at Tufts University School of Dental Medicine (TUSDM) from 2005 to 2018. The primary outcome is the change of mean of radiographic interproximal bone loss of extracted teeth. The secondary outcomes are changes of other parameters (periodontal, endodontic and restorative) of extracted teeth and reasons for extraction.