Abstract
It is of interest to evaluate the frequency of premolar extractions during orthodontic treatment in patients reporting to the Saveetha dental hospital in Chennai from 2019-2020. We used the records from 987 patients who underwent orthodontic treatment from June 2019 to March 2020 in a dental hospital for this analysis. Digital case records of patients who underwent therapeutic extractions of premolars were isolated. A sample dataset of 340 case records were selected for this study. Data shows that 34.4% of subjects underwent premolar extractions amongst a total of 987 subjects who underwent orthodontic treatment. 89.4% of patients were Angle's Class I malocclusion patients, and the rest were Class II patients. However, no premolar extractions were done in Class III patients. Data also shows that 67.1% of subjects underwent all 4 first premolar extractions and 13.2% underwent only upper first premolar extractions. Thus, a significant association was found between Type of Malocclusion and the Type of premolar extractions with p < 0.05. Moreover, only 34.4% of patients underwent premolar extractions and the majority of them underwent all 4 first premolar extractions.
Highlights
Orthodontic treatments commonly involve premolar extractions for providing space and are known as therapeutic extractions
The authors declare that they are not withholding any information that is misleading to the publisher in regard to this article. This is part of a special issue on Dental Biology Abstract: It is of interest to evaluate the frequency of premolar extractions during orthodontic treatment in patients reporting to the Saveetha dental hospital in Chennai from 2019-2020
Data shows that 34.4% of subjects underwent premolar extractions amongst a total of 987 subjects who underwent orthodontic treatment. 89.4% of patients were Angle’s Class I malocclusion patients, and the rest were Class II patients
Summary
Orthodontic treatments commonly involve premolar extractions for providing space and are known as therapeutic extractions. One of the first orthodontists to indicate permanent tooth extractions to correct malocclusions was Charles Tweed, who found only 20% of his clinical cases without extractions were successful [1]. His ideas were considerably different from the non-extraction theory supported by Edward Angle. Tooth crowding and protrusions demand rigorous attention during orthodontic planning and may include the extractions of 1st and 2nd premolars 2. In previous studies done it was reported that in the University of North Carolina from 2000-2011 the overall extraction rates declined from 37.4% to 25%. It is of interest to evaluate the frequency of premolar extractions during orthodontic treatment in patients reporting to the Saveetha dental hospital in Chennai from 2019-2020
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
