Title: Evaluation of Titanium Miniscrew Implants as a Source of Intraoral Anchorage for en masse Intrusion of Maxillary Anterior Teeth: A Clinical Study
Abstract: Objectives: Deep bite or increased overbite correction often offers a challenge to the clinician during orthodontic treatment. Bite opening with conventional mechanics in high angle cases which require intrusion of anteriors cause reciprocal forces in the posteriors which is undesired. Absolute or true en masse intrusion mechanics using mini-implants are ideal for such cases. This study explores the rate, amount of intrusion and torque changes of maxillary anteriors over a period of 6 months using mini-implants between canine and lateral incisors bilaterally. Materials and methods: Bilateral mini-implants made by Dentos were placed between lateral incisors and canines and a force of 45 gm per side was applied. Preand postlateral cephalograms were evaluated for the rate, amount of intrusion and torque changes. Results: Rate of intrusion of incisors was found out to be 0.43 mm/month and rate of intrusion of canines was found out to be 0.18 mm/month and the torque changes observed were nonsignificant. Conclusion: Mini-implants were used to deliver light continuous forces of optimal magnitudes and they were observed to be efficient and stable source of anchorage for en masse intrusion of the maxillary anterior teeth. The amount of intrusion achieved for six maxillary anterior teeth was statistically and clinically significant without significant torque changes.
Publication Year: 2013
Publication Date: 2013-10-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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