Rapid canine distalization through distraction of the periodontal ligament after reducing interseptal bone resistance / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 546-550, 2008.
Article
in Chinese
| WPRIM
| ID: wpr-251006
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of rapid canine distalization through distraction of the periodontal ligament after reducing interseptal bone resistance.</p><p><b>METHODS</b>Twenty canines in 11 patients who needed first premolar extractions were involved. A tooth-borne, custom-made distractor was bonded right after the first premolar extraction and the interseptal bone resistance reduction. Three days post-operatively, the distractor was activated 0.1 mm three times a day. Orthodontic models, panoramic radiographs, periapical radiographs, electrical vitality test were assessed pre- and post distraction procedure and 3 months after the completion of the procedure.</p><p><b>RESULTS</b>The distraction procedure was completed in 18 to 35 days [mean (25.6 +/- 4.7) days], with the distal displacement of the canines ranging from 3.53 to 8.29 mm [mean (5.56 +/- 1.32) mm]. The canines showed a mean of 12.20 degrees distal tipping and 18.53 degrees rotation. The anchorage teeth showed an average of (0.76 +/- 0.75) mm mesial movement. The mesial contact point of incisors showed a mean of (0.67 +/- 0.55) mm lingual movement. There was no significant root resorption or long-time change on pulp vitality after distraction.</p><p><b>CONCLUSIONS</b>The canine distalization through distraction of the periodontal ligament after reducing interseptal bone resistance was an effective approach to move canines rapidly.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Periodontal Ligament
/
Root Resorption
/
General Surgery
/
Tooth Movement Techniques
/
Cuspid
/
Methods
Limits:
Adolescent
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2008
Type:
Article
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