Effects of Invisalign Palatal Expander System
Treatment Effects of Invisalign Palatal Expander System and Hyrax Palatal Expander - A Randomized Controlled Trial
University of the Pacific
120 participants
May 10, 2024
INTERVENTIONAL
Conditions
Summary
The aim of this study is to evaluate the effectiveness of Invisalign Palatal Expander system ingrowing patients. This study compares the treatment outcomes of Invisalign Palatal Expander system to conventional treatments through randomized controlled trial.
Eligibility
Inclusion Criteria5
- Mixed dentition phase with at least three nonmobile (stable) teeth which have more than 1/4 of primary molar root length left16 in either side
- Early permanent dentition stage and early permanent dentition but second permanent molars not yet fully erupted in the arch
- Unilateral or bilateral posterior cross bite patients; or Patients who have been diagnosed with transverse maxillary deficiency (Skeletal transverse discrepancy measured from the estimated center of resistances of the first molars17 ≤ - 3 mm);
- Patients with Class I or Class II skeletal relationship
- Subjects willing to consent to the trial
Exclusion Criteria4
- Any general medical health problems which may influence treatment
- Any craniofacial anomalies
- Skeletal Class III patients
- Mixed dentition patients with more than 2 heavily restored primary second or permanent first molars.
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Interventions
Invisalign palatal expander system: The Invisalign® Palatal Expander System (AlignTechnology, inc.) is 3D-printed orthodontic device for maxillary expansion.
Hyrax expander: The Hyrax-type maxillary expander will include a midline self-locking screw. The expansion screw is connected to the conventional molar bands or printed clasps, which are cemented on the maxillary first molars (or on the maxillary primary second molars), via 0.9 mm stainless-steel wire. The framework is soldered to the bands and extends on the palatal side to the primary canines or canines. The expander will be fabricated by a qualified laboratory technician
Locations(1)
View Full Details on ClinicalTrials.gov
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NCT06414863