Crowding, Tooth Clinical Trial
Official title:
Evaluation of the Efficiency of Corticision on Accelerating of Leveling and Alignment Lower Crowded Incisors Using Cone Beam Computed Tomography - A Randomized Controlled Trial
This experimental study will evaluate the effect of corticision on accelerating the leveling
and alignment of lower crowded incisors compared with the control untreated group using cone
beam computed tomography.
The study sample will consist of 26 patients with less than 6 mm crowding. The sample will be
allocated randomly into two experimental groups.
The brackets and passive SS wire will be applied with radiographic metal guides between each
tooth to allow for accurate corticision site 2 mm below the gingival papilla and to prevent
tooth roots injury. The dentoalveolar changes occurring after leveling and alignment of lower
anterior teeth will be evaluated using CBCT radiographs, Frequency, degree of root
resorption, and the incidence of bone dehiscence will be assessed in relation to initial
situation.
Crowding is the most common form of malocclusion. Different methods have been used to resolve crowding, including extraction and nonextraction. Corticision is an important methods to accelerate tooth movement in crowded cases. Cortical bone incision without flap elevation enhances turnover rate of surrounding structures and decreases the time for leveling and alignment. In orthodontics, CBCT imaging has been applied to evaluate impacted teeth and root resorption. But the data are very rare regarding the application of CBCT in tooth movement. So CBCT will be used in this research to evaluate the amount of external apical root resorption (EARR) and presence of dehiscence in the lower anterior teeth in the crowded cases. Furthermore, the duration of alignment will be compared between corticision group and non-corticision group. ;
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