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CC BY-NC-ND 4.0 · Eur J Dent 2016; 10(04): 512-516
DOI: 10.4103/1305-7456.195163
Original Article
Dental Investigation Society

Comparison of temporary anchorage devices and transpalatal arch-mediated anchorage reinforcement during canine retraction

Defne Kecik
1   Department of Orthodontics, Faculty of Dentistry, Istanbul Hospital, Başkent University, Istanbul, Turkiye
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Publikationsdatum:
24. September 2019 (online)

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ABSTRACT

Objective: The purpose of this study was to compare the dental and skeletal effects of canine retraction using conventional anchorage reinforcement systems and comparing them with the usage of TADs. Materials and Methods: The sample consisted of 50 patients having Class I malocclusions with bimaxillary protrusion indicated for first premolar extraction, and allocated into two groups. The first group consisted of 25 patients with a mean age of 18,7 years (min:14, max:22 years, 16 girls and 9 boys) that TADs were applied as an anchorage mechanic between attached gingiva of upper second premolar and first molar teeth. The second group consisted of 25 patients with a mean age of 19,4 years (min:15, max:23 years, 14 girls and 11 boys) that conventional molar anchorage with Transpalatal arch (TPA) was applied for the anchorage mechanics against canine retraction. Results: The results showed that mean mesial movement and the tipping of the first molars in TAD group between T0 - T1 were insignificant (P > 0,05), however in the TPA group were significant (P<0,01). Vertical movement of the molars were not significant when two groups were compared (P>0,05). Conclusion: Although TPA is a useful appliance, it doesn't provide an effective anchorage control on anteroposterior movement maxillary first molar teeth concerning first premolar extraction treatment. TADs are more convenient to provide absolute anchorage during maxillary canine retraction in contrast to transpalatal arch.

Key words:

Absolute anchorage - miniscrews - temporary anchorage devices - transpalatal arch
 

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