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Am J Orthod Dentofacial Orthop. 2019 May;155(5):725-732. doi: 10.1016/j.ajodo.2019.01.011.

Maxillary molar mesialization with the use of palatal mini-implants for direct anchorage in an adolescent patient.

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Department of Orthodontics, University of Duesseldorf, Duesseldorf, Germany. Electronic address:
Private practice, Perth, Australia.
Department of Orthodontics, University of Duesseldorf, Duesseldorf, Germany.


A unique clinical challenge presents when dealing with a compromised first permanent molar. A compelling treatment option for consideration is the removal of a nonrestorable first permanent molar, with the subsequent "replacement" through controlled mesial tooth movement of viable second and third molars. To reinforce the anchorage support associated with such a planned movement, indirect or direct implant-supported mechanics may be used. With the use of direct anchorage, orthodontic brackets are not required and space closure can be commenced immediately. In this article, we report the clinical procedure and design of direct-anchorage mechanics used for the successful closure of a maxillary first permanent molar space with the use of an implant-supported appliance (Mesialslider). Treatment was completed in just under 12 months, with successful mesial movement of the maxillary second and third molars without the need for the bonding of orthodontic brackets on the anterior dentition. The result was determined to be stable over a 3-year period.

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