Treatment of maxillary protrusion in adult with self-tapping micro-screw implants / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 16-20, 2008.
Article
in Chinese
| WPRIM
| ID: wpr-359648
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the position change of upper molars and incisors in order to evaluate the stability of posterior anchorage with the application of micro-screw implant.</p><p><b>METHODS</b>Eight 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. Cephalometric and cast analyses were carried out to record the position change of molar and micro-screw.</p><p><b>RESULTS</b>During treatment the micro-screw implants kept stable in sagittal and vertical plane. Neither the mesial-distal movement nor the tipping of the upper molars during the treatment was statistically significant (P > 0.05). The edge of upper incisors was retracted by 6.86 mm and the tipping was reduced by 18.03 degrees . The center of resistance was intruded by 3.28 mm on average. Significant change was observed (P < 0.01).</p><p><b>CONCLUSIONS</b>Micro-screw implant could provide good anchorage control in the orthodontic treatment.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Therapeutics
/
Treatment Outcome
/
Orthodontic Anchorage Procedures
/
Malocclusion
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2008
Type:
Article
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