Distalization With Aligners: Anchorage Options (NCT06631131) | Clinical Trial Compass
CompletedNot Applicable
Distalization With Aligners: Anchorage Options
Turkey (Türkiye)22 participantsStarted 2021-12-30
Plain-language summary
Background: To compare the dentoskeletal effects of Class II elastic anchorage and infrazygomatic crest (IZC) miniscrew anchorage in sequential maxillary molar distalization using clear aligners.
Methods: A total of 22 patients with Angle Class II malocclusion treated with clear aligners and maxillary molar distalization were included. Based on the anchorage method patients were divided into two groups: Class II elastics (Group 1) or IZC miniscrews (Group 2). Lateral cephalometric radiographs and digital models were obtained from all patients before treatment (T0) and after distalization of the second premolars (T1) to assess skeletal and dental changes. Geomagic Control X was used to superimpose the digital models.
Who can participate
Age range15 Years – 25 Years
SexALL
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Inclusion criteria
✓. Class II molar relationship,
✓. mild or moderate dental crowding on both arches,
✓. previous extraction or absence of the upper third molars,
✓. good compliance to orthodontic treatment,
✓. availability of initial and progress stereothography (STL) files of intraoral scans and lateral cephalometric radiographs.
Exclusion criteria
✕. severe dental crowding on both arches,
✕. Class II subdivision malocclusion,
✕. severe skeletal Class II malocclusion requiring orthognathic surgery,
✕. presence of impacted or supernumerary teeth,
✕. tooth extraction (except third molars),
✕. poor compliance to orthodontic treatment,
What they're measuring
1
Evaluation of the Dentoskeletal Effects of Maxillary Molar Distalization with Clear Aligners: Class II Elastic Anchorage vs. Miniscrew Anchorage
Timeframe: Patients were collected and treatmets were started up to 9 months. At 12 weeks, miniscrews were inserted in group 2 and elastics were started to be used in each group. Final data were collected up to 20 months.