Stability of upper molars with the application of implant anchorage.
- Author:
Sheng-ji ZHU
1
;
Yan-heng ZHOU
;
Min-kui FU
Author Information
- Publication Type:Case Reports
- MeSH: Adolescent; Adult; Bone Screws; Dental Implants; Female; Humans; Male; Malocclusion; therapy; Molar; physiology; Orthodontic Anchorage Procedures; Orthodontics, Corrective; methods; Prognathism; therapy; Young Adult
- From:Chinese Journal of Stomatology 2006;41(1):4-7
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the stability of upper molars with the application of micro-screw implant anchorage during orthodontic treatment.
METHODSFifteen adult patients with severe maxillary protrusion were included. Upper first premolars were extracted and upper posterior anchorage was reinforced with micro-screw implant in all patients. The average treatment period to close the extraction space was 10.5 months. Cephalometric and cast analysis were carried out.
RESULTSDuring the treatment, the micro-screw implants kept stable in sagittal plane; neither the mesial-distal movement nor the rotation or tipping of the upper molars during the treatment was of statistic significance (P > 0.05); the edge of upper incisors was retracted by 6.99 mm on average, and no significant vertical change was observed (P > 0.05).
CONCLUSIONSMicro-screw implant could provide good anchorage control in the orthodontic treatment.
