Effect of bicortical orthodontic microimplant on tooth movement in dogs.
- Author:
Jian-chao WU
1
;
Ji-na HUANG
;
Shi-fang ZHAO
Author Information
- Publication Type:Journal Article
- MeSH: Animals; Dental Implantation, Endosseous; methods; Dental Implants; Dogs; Male; Orthodontic Anchorage Procedures; instrumentation; Orthodontic Appliance Design; Orthodontic Appliances; Tooth Movement Techniques; methods
- From: Journal of Zhejiang University. Medical sciences 2006;35(5):491-495
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the potential anchorage of bicortical microimplant for tooth movement.
METHODSFive bicortical microimplants were inserted in the interradicular area of the second premolar (P2) in one side of the mandible (test side), 5 monocortical microimplant in the contralateral region (control side) in 5 beagle dogs. A total of 100 g force was generated between the implant and the fourth premolar (P4) in two sides. M1-P4, CA-IB and CA-M1 were measured biweekly. At the end of loading, specimens with P4 segments were cut and grounded to 70 microm to calculate the bone-to-implant contact (BIC).
RESULTAll the bicortical microimplants remained stable during the treatment periods, while 1 monocortical microimplant was lost within 1 week. Mesial movement of P4 was ( 3.92+/-0.22) mm in the test side, (2.03+/-0.15) mm in the control side (P<0.05). Analysis showed no difference of the BIC between the bicortical microimplants and the monocortical microimplants.
CONCLUSIONThe bicortical microimplant may be used as orthodontic anchorage for mesial movement of posterior tooth.
