Effects of Invisalign Palatal Expander System
Purpose
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.
Condition
- Palatal Expansion Technique
Eligibility
- Eligible Ages
- Between 6 Years and 14 Years
- Eligible Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- 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 2. Early permanent dentition stage and early permanent dentition but second permanent molars not yet fully erupted in the arch 3. 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); 4. Patients with Class I or Class II skeletal relationship 5. Subjects willing to consent to the trial
Exclusion Criteria
- Any general medical health problems which may influence treatment 2. Any craniofacial anomalies 3. Skeletal Class III patients 4. Mixed dentition patients with more than 2 heavily restored primary second or permanent first molars.
Study Design
- Phase
- N/A
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel Assignment
- Primary Purpose
- Treatment
- Masking
- Single (Outcomes Assessor)
Arm Groups
| Arm | Description | Assigned Intervention |
|---|---|---|
|
Experimental Invisalign® Palatal Expander System |
Invisalign® Palatal Expander System will be delivered. |
|
|
Active Comparator Hyrax-type maxillary expander |
Hyrax-type maxillary expander will be delivered. The Hyrax-type maxillary expander will include a midline self-locking screw, which 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 |
|
Recruiting Locations
University of the Pacific
San Francisco, California 94103
San Francisco, California 94103
More Details
- Status
- Recruiting
- Sponsor
- University of the Pacific