The study aims to compare the anchorage control using arch wire stopper versus mini-screws in post-pubertal patients with maxillary dentoalveolar protrusion
The study begins with patient selection according to inclusion and exclusion criteria, followed by treatment planning, and then bonding of orthodontic brackets of the upper and lower arches, including the second maxillary molars. After leveling and alignment for all participants, the extraction of the maxillary first premolars will be performed. • In the "Intervention Group" Canine retraction will be performed on 0.017×0.025 ss archwire with an archwire stopper mesial to the upper first molar. Afterwards, anterior segment retraction will be done using T-loop on 0.017x0.025 TMA archwire • In the "Comparator Group" Canine retraction on 0.017×0.025 ss archwire with the upper first molars indirectly anchored to inter-radicular mini screws Afterwards, anterior segment retraction will be done using T-loop on 0.017x0.025 TMA archwire Lastly, the anchorage control in both groups and the secondary outcomes will be assessed using the obtained digital models and lateral cephalometric radiographs.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
26
canine retraction after the extraction of the maxillary first premolars with archwire stoppers is mesial to the maxillary first molars.
canine retraction after the extraction of the maxillary first premolars, with the maxillary first molars indirectly anchored to the inter-radicular mini-screw.
Faculty of Dentistry, Cairo University
Cairo, Egypt
Amount of anchorage loss of the maxillary first molars
After full canine retraction, the amount of anchorage loss (mesial movement) of the maxillary first molars of will be assessed on the digital models
Time frame: 6 months from the start of the canine retraction and after anterior segment retraction (12 months)
Tipping of the maxillary first molar.
the degree of tipping of the maxillary first molars will be assessed on the lateral cephalometric radiograph
Time frame: 6 months from the start of the canine retraction and after anterior segment retraction (12 months)
Maxillary incisors inclination
The change in the maxillary incisors inclination will be assessed on the lateral cephalometric radiograph
Time frame: 6 months from the start of the canine retraction and after anterior segment retraction (12 months)
Maxillary incisors anteroposterior position
The change in the maxillary incisors anteroposterior position will be assessed on the lateral cephalometric radiograph and digital models
Time frame: 6 months from the start of the canine retraction and after anterior segment retraction (12 months)
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.