The posterior squeezing out effect of molar crowding

There has been discussion of posterior crowding as a factor in the development of Class 111 malocclusions.3 The theory suggests that a squeezing out effect can occur because of crowding in the molar regions, which can contribute to an anterior open-bite malocclusion in a mandible with poor vertical growth in the ramus area (Fig. 8.9). Alternatively, good ramus growth can lead to a Class III malocclusion.

This concept is not well understood, and has not been fully investigated. However, some carefully selected Class III cases4 (see Case KB, p. 242) and some open-bite cases5 respond well to a treatment approach involving second molar extractions. This suggests some validity to the theory of a squeezing out effect. It may be an important etiological factor in some cases.

Was this article helpful?

0 0
Booze Basher

Booze Basher

Get All The Support And Guidance You Need To Permanently STOP The Battle With Alcohol Once And For All. This Book Is One Of The Most Valuable Resources In The World When It Comes To Transformational Tools For Battling Booze Binges And Staying Alcohol-Free.

Get My Free Ebook

Post a comment