Indications for lower incisor extraction â€“ A case series review

Pabitra Kumar Biswas ,U V Rijash ,Dhanya Jaibai ,T K Bavitha ,K R Hridya

doi:10.18231/2395-499x.2018.0001

Abstract

Lower incisor extraction is a treatment regime since decades with its own advocates and opponents. Even though many pioneers and legends support lower incisor extraction therapy, there is still a dilemma in the orthodontic community which might be due to the fear of certain disadvantages such as formation of black triangles, midline discrepancy, loss of canine guidance, decrease in intercanine width and bite deepening. But proper case selection, treatment planning and treatment mechanics will produce stable and good results with lower incisor extraction therapy. In this article we are illustrating the specific indications of lower incisor extraction with the help of treated cases. Keywords: Mandibular incisor, Extraction, Bolton discrepancy, Adult orthodontics, Black triangle.

Highlights

The era of extraction had begun as early as in 1757, by Bourdet, a disciple of Pierre Fauchard where he extracted premolars to relieve crowding while Hunter in 1835 extracted the first premolars for retraction of proclined incisors.[1]
Incisor Malocclusions with a malformed or periodontally compromised mandibular incisor accompanied by gingival recession and bone loss, whose maintenance would not provide any benefit could be considered as a good indication for lower incisor extraction
Mandibular incisor extraction is a good choice when all the conditions with regard to its indications are satisfied by a patient

Summary

Introduction

The era of extraction had begun as early as in 1757, by Bourdet, a disciple of Pierre Fauchard where he extracted premolars to relieve crowding while Hunter in 1835 extracted the first premolars for retraction of proclined incisors.[1]. According to Bolton,[18] mandibular tooth size excess greater than 1.6 mm is considered significant and is handled in one of the three ways: interproximal reduction, lower incisor extraction, or restoration of upper anteriors. Since the discrepancy in the lower arch was more than that which could be resolved with slenderization and as the upper anteriors were in good proportion, it was decided to extract a mandibular incisor (42).

Results

Conclusion