An interventional study of Lingual appliances and Labial appliances in Crowding, sponsored by Damascus University. Completed at 1 site in Syrian Arab Republic. Open to participants aged 18 Years to 25 Years. Per ClinicalTrials.gov, last updated 2022-02-14.
Sponsored by Damascus University · Not applicable, Interventional, and Treatment
Patients who have moderate crowding that could be treated without extraction will be treated in this study using either lingual or labial fixed orthodontic appliances. All patients will receive a cone-beam computed tomography (CBCT) scan in two different times (T0: before treatment, T1: after treatment). The dentoalveolar changes will be assessed.
Lingual orthodontic appliances provide an ultimate esthetic solution for patients who do not want visible orthodontic appliances. Recently, lingual orthodontic treatment outcomes have become similar and comparable to those produced with labial orthodontic treatment. However, placement of orthodontic brackets on the lingual surfaces of teeth causes changes in their morphology, which results in articulation problems, chewing difficulties, tongue irritation and other impairments. In this respect, the main difference between the labial and lingual techniques is the distance between the point of application of the force that is transmitted through the bracket and the centre of resistance of the tooth. Consequently, the displacement and stress induced in bone by these two techniques will also differ, and these need to be evaluated so that useful comparisons can be made between these two techniques. Patients who have moderate crowding that could be treated without extraction will be treated in this study using either lingual or labial fixed orthodontic appliances. All patients will receive a cone-beam computed tomography (CBCT) scan in two different times (T0: before treatment, T1: after treatment). The dentoalveolar changes will be assessed.
Damascus University is the lead sponsor of 206 studies on the registry; 10 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Patients with moderate crowding will be treated without extraction using lingual fixed appliances from American Orthodontics company.
Device: Lingual appliances
Patients with moderate crowding will be treated without extraction using labial fixed appliances from American Orthodontics company.
Device: Labial appliances
Patients with moderate crowding will be treated without extraction using lingual appliances.
Patients with moderate crowding will be treated without extraction using labial appliances.
Dentoalveolar changes after crowding treatment
Dentoalveolar changes before and after crowding treatment will be evaluated using CBCT.
Time frame: Changes will be evaluated before and after crowding treatment which will take approximately 12 months
ABO- Objective Grading System
Objective grading system phase III examination will be done to systematically grade post treatment records. The ABO-OGS contains eight criteria: alignment, marginal ridges, buccolingual inclination, occlusal relationships, occlusal contacts, overjet, interproximal contacts and root angulation. Patients will be deducted for any discrepancy from ideal as described by the ABO. Every case that loses 30 or fewer points generally receives a passing grade for the ABO phase III examination.
Time frame: After treatment completion, an average of 1 year
Change in oral health related quality of life
Patients in both groups will be given a questionnaire to be filled. The questionnaire to be used is called Oral-Health-Impact-Profile with 14 items (OHIP-14) which can be filled in 3 minutes. OHIP-14 includes a subjective evaluation of the individual's oral health, functional well being, emotional well being, expectations and satisfaction with care and sense of self.
Time frame: (1) at the beginning of the treatment, (2) after week, (3) after 2 weeks, (4) after 4 weeks, (5) after 6 months, (6) after treatment completion, an average of 1 year.
Plan to share: No — The Individual participant data will be only available for the researchers in the department of Orthodontics, Damascus University
This study is completed, as verified in Feb 2022. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Damascus University