PALATAL IMPLANTS IN ORTHODONTICS

PALATAL IMPLANTS IN ORTHODONTICS
May 4, 2003
Jessie Jacob,DDSIII,U of ASJ
Compton Implants
Please visit the web site to view the article in its entirety.
Introduction
Зѓў Palatal implants have been used in the last 2 decades to eliminate headgear wear and to establish stationary anchorage for space gaining procedures . Extraoral appliances are routinely used to establish maximum anchorage. Because of social and esthetic concerns, many patients reject the headgear wear. Since the success of treatment solely depends on patient cooperation, creating serious facial/orbital injuries with the use of headgears. So intraoral molar distalization mechanics were developed .(6) Some investigators have used Nance appliance to obtain anchorage from the palate; but it resulted in anchorage loss and created inflammation of soft tissue due to reduced hygiene under the acrylic resin button.
Зѓў Investigations (3) have shown that dental implants placed in alveolar bone were resistant to orthodontic force application. In dentate individuals there are no available sites for implant placement other than the alternatives of retromolar area and palatal region. New appliances have been developed which are placed in the palate and provide the opportunity for full anchorage in the orthodontic management of the maxillary arch and offers enhanced patient comfort due to invisible appliance which guarantees that the orthodontic forces applied cannot be interrupted by the patients non compliance.
Зѓў References:
1)Roberts W E, Nelson C L, Goodcare C J: Rigid implant anchorage to close a mandibular first molar extraction site J Clin Orthod 1994;28:693-704
2)Roberts W E, Helm F R, Marshall K J, Gongloff R K: Rigid endosseous implants for orthodontic and orthopedic anchorage. Angle orthd1989;59:247-256.
3)Melson B ,Lang N P:Biological reactions of alveolar bone to orthodontic loading of implants: Clin Oral Implants Res 2001;12:144-152
4)Abels N, Schiel H J, Henry-Langer G, Vengebauer J ,Engel M Bone condensing in the placement of endosteal palatal implants :A Case report Int.J Oral Maxillofacial Implants 1999;14:849-852
5)Tosun Tosun, Ahmet Keles, Mejat Erverdi :Method of placement of palatal implants: Int .J. Oral Max Fac Implants2002jan-Feb17(1)95-100
6)Keles A: Maxillary unilateral molar distalization with sliding mechanics; A priliminary investigation.Eur J Orthod 2001;23:507-515
7)Bernhart T,Vollgruber A, Gahleitner A,Dortbudak O,Haas R. Alternative to median region of the palate for placement of an orthodontic implant Clin Oral Implants Res 2000:11:595-601
8)Cehreli M C, Sahin S,Fabrication of a dual purpose surgical template for correct labiopalatal positioning of dental implants. Int. J .Oral MaxilloFac Implants 2000;15:278-282
9)Karl Andreas Schlegel, Florian Kinner, Karl Diieter Schlegel .The anatomic basis for palatal implants in orthodontics. Int J Adult Orthod Orthognathic Surgery 2002;17:133-139
10)Heinrich Wehrbein, Beat R Merz, Peter Diedrich. Palatal bone support for orthodontic implant anchorage- A Clinical and radiological study. Eu J Ortho 1999feb 21(1)65-70
11)Wehrbein H,Merz B Hammerle C,et al.Bone to implant contact of orthodontic implants in humans subjected to horizontal loading .Clin oral implants res 1998; 9 :348-353
12)Kanomi R Mini implant for orthodontic anchorage .J Clin Orthod 1997;31:763-767 13)Roberts W E .Bone dynamics of osseointegration, ankylosis and tooth movement.J. Indiana dent Assoc 1999;78(3)24-32