Distalization of maxillary molars is a viable option for the correction of class II malocclusion. However, Anchorage loss and patient compliance are the major problems when using conventional molar-distalizing appliances like pendulum and distal jet, where the main source of anchorage is tooth and tissue-borne or when extra-oral appliances are used to distalize the maxillary molars. Many anchorage systems have been introduced in the last decade to reduce or eliminate the anchorage loss. The advent of temporary anchorage devices has revitalized orthodontic biomechanics and made it possible to achieve predicable results without any side effects.
This presentation will include temporary anchorage devices using buccal and palatal micro-implants as well as micro-implant supported conventional appliances like Distal Jet and pendulum for the distalization of molars using the concept of absolute anchorage. The focus will be on biomechanical and diagnostic considerations and countering strategies to combat the unwanted side effects. The effect on second and third molars, appropriate timings, force levels, anchorage requirements and post-distalization mechanics will be also addressed.
Learning Objectives:
After this lecture, attendees will be able to:
Evaluate non-compliance maxillary molar distalization techniques including buccal and palatal micro-implants, using the concept of absolute anchorage.
Identify insertion sites, placement technique and anchorage/force application of micro-implants for upper molar distalization, retraction of pre-molars, canines and incisors.
Implement strategies to combat side effects, post-distalization mechanics and finishing the occlusion after molar distalization.
