Clinical Trial Clinical Trial
Official title:
Comparison of Relapse Arch Width in Modified Vacuum Formed Retainers Covering the Palate Versus Hawley Retainer: A Prospective Randomized Control Trial
This study will focus on the relapse of arch width in two types of retention regimes, which are modified vacuum-formed retainers and Hawley type retainers in patients after fixed appliance treatment. This will subsequently be of valuable information for clinicians in choosing the appropriate type of retainers after removal of their fixed appliances. This is because the modified vacuum-formed retainers will be significantly cheaper, quicker and easier to fabricate.
Status | Recruiting |
Enrollment | 32 |
Est. completion date | August 2021 |
Est. primary completion date | August 2021 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 13 Years and older |
Eligibility | Inclusion Criteria: 1. Patients who are at least 13 years old at time of debond. 2. Treatment plan of extraction or non-extraction followed by straight wire appliances in the upper arch only or both arches 3. Undergone more than 3mm of maxillary dentoalveolar expansion. Initially, the amount of arch width expansion was measured intraorally at debond and compared to their respective pre-treatment dental casts. To ensure accuracy, the measurements were repeated on debond and pre-treatment dental casts. The following linear arch width measurements were made: intercanine width (ICW - the distance between the canine cusp tips), interpremolar width (IPMW - the distance between the premolar cusp tips), interfirst molar width 1 (IFMW1 - the distance between the mesiobuccal cusp), and interfirst molar width 2 (IFMW2 - the distance between the distobuccal cusp). At least two or more points were expanded (> 3mm) to be included in the trial. 4. No chronic medical conditions Exclusion Criteria: - |
Country | Name | City | State |
---|---|---|---|
Malaysia | Unit Pakar Ortodontik Klinik Pergigian Sungai Chua | Kajang | Selangor |
Malaysia | Klinik Pakar Ortodontik Klinik Kesihatan Bandar Botanik | Klang | Selangor |
Malaysia | Orthodontic Specialist Clinic | Kuala Lumpur |
Lead Sponsor | Collaborator |
---|---|
National University of Malaysia |
Malaysia,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Arch width | Mean changes across 6-month study period. | T0 (at debond)-T1 (3-month post-debond)-T2 (6-month post-debond) |
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