Abstract

Bone Anchored Orthopedics in Class III Growing Patients

by Garib Daniela

This presentation aims to describe the bone-anchored maxillary protraction (BAMP) and the derived protocol mini-screw anchored maxillary protraction (MAMP). The advantage of BAMP is permitting an active retention with night-time elastics until the end of facial growth. In MAMP therapy, the miniplates are replaced by the miniscrews with the advantage of reducing costs and simplifying the technique. MAMP uses full-time Class III elastics anchored on a hybrid expander in the maxilla and on two mini-screws in the mandible. A randomized clinical trial evaluating the outcomes of MAMP technique demonstrated that a positive overjet was achieved in 94% of patients after treatment. The mean overjet increase was 3mm with a standard deviation of 2mm. The instability rate of mini-screws in the palate and mandible was 2% and 15%, respectively. Five years after treatment, MAMP demonstrated a stability rate of 70%. The cost-effectiveness of orthopedics with skeletal anchorage in Class III growing patients will be discussed.

Learning Objectives

After this lecture, you will be able to describe the clinical indications of bone-anchored maxillary protraction (BAMP);
After this lecture, you will be able to describe the clinical indications of mini-screw anchored maxillary protraction (MAMP);
After this lecture, you will be able to discuss the short and long-term outcomes of both protocols for facial orthopedics with skeletal anchorage in Class III growing patients.