Abstract

Anatomy and Biomechanics, the Key Factors when Using TADs in Orthodontics

by Arango Elsa

Due to the versatility of skeletal anchors, today they have become one of the most used tools in orthodontics. However, a deep knowledge of anatomy and biomechanics are essential to use them correctly, taking advantage of their full potential. To delve into the anatomy, it is necessary to review each of the anatomical sites, evaluating the noble structures adjacent to each area, as well as the mechanical properties of each one of them. Anatomy also determines the size of the skeletal anchorage, including the design of the head and the gingival profile. Another fundamental factor in the success of skeletal anchors is the placement procedure. For each of the anatomical sites there is a specific procedure which includes the location of the operator, the support points of the hands and the direction of insertion of the mini-implant. Regarding biomechanics, it must be taken into account that, according to each anatomical region, there will be limitations in the application of forces, which must be compensated to achieve the programmed therapeutic objectives.

Learning Objectives

After this lecture, you will be able to recognize the different anatomical sites available for the placement of skeletal anchors, including the zygomatic process of the maxilla and the mandibular symphysis.
After this lecture, you will be able to analyze the placement procedures of the mini-implants, based on the selected anatomical structure
After this lecture, you will be able to analyze the biomechanical limitations associated with each of the anatomical sites to place mini-implants