Abstract

Skeletal Versus Conventional Anchorage in Class II Corrections

by Darendeliler Ali

The management of malocclusions has significantly evolved since the introduction of Temporary Anchorage Devices (TADs). However, their widespread adoption has also led to overuse by some clinicians. One of the most common applications of TADs is in the treatment of Class II malocclusions, particularly skeletal open bite Class II cases, where they have proven to be especially efficient and beneficial. The use of extraoral appliances in open bite cases has nearly disappeared due to the effectiveness of TADs. Additionally, aligners have introduced certain advantages in the treatment of Class II malocclusions and open bites. However, although rare, complications such as infection, failure, and soft tissue irritation can occur with TAD use. Mini screws, when connected with wires, can mimic the function of surgical plates. This paper will discuss a comparative study analyzing the effects of a single mini screw versus two mini screws connected with stainless steel wire using Finite Element Analysis. Another study will be presented, comparing the outcomes of aligners alone versus the use of surgical plates and braces in Class II open bite cases. Based on existing literature and our studies, we conclude that skeletal anchorage is highly beneficial in mild to moderate cases. However, in severe cases, jaw surgery remains the recommended approach. This applies to both mini screws and surgical plates.

Learning Objectives

After this lecture, you will be able to understand the difference in stress distribution when using one versus two mini screws and the clinical applications
After this lecture, you will be able to give indication of skeletal anchorage versus conventional anchorage
After this lecture, you will be able to give indication of Aligners alone versus Surgical plates and braces in Class II open bite cases.