Acceleration of Alignment of Crowded Lower Anterior Teeth
- Conditions
- Malocclusion, Angle Class ICrowded Teeth
- Interventions
- Procedure: periodontally accelerated osteogenic orthodontics
- Registration Number
- NCT03659097
- Lead Sponsor
- Damascus University
- Brief Summary
Patients at the Orthodontic Department of University of Damascus Dental School will be examined and subjects who meet the inclusion criteria will be included. Then, initial diagnostic records (diagnostic gypsum models, internal and external oral photographs, as well as radiographic images) will be studied to ensure that the selection criteria are accurately matched.
The aim of this study is to compare two groups of patients with moderate crowding of the lower anterior teeth First group (Experimental): the patients in this group will be treated with orthodontic fixed appliances + surgery to the alveolus of the lower anterior teeth in order to induce remodeling of the bony structures and enhance orthodontic movement.
Second group (Control): the patients in this group will be treated using fixed appliances with any acceleration method.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 38
- Class I malocclusion with moderate crowding (4-6 mm of tooth-size-arch-length-discrepancy).
- Good oral hygiene and periodontal health.
- No severe skeletal discrepancy.
- Normal inclination for the upper and lower incisors.
- No congenitally missing or extracted teeth (except for the third molars).
- Bi-maxillary severe dental protrusion.
- Previous orthodontic treatment.
- Subject with psychological abnormalities.
- Subject with systemic diseases.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Periodontally accelerated osteogenic orthodontics periodontally accelerated osteogenic orthodontics Patients in this group will undergo orthodontic treatment plus periodontally accelerated osteogenic orthodontics in order to induce tooth movement.
- Primary Outcome Measures
Name Time Method Duration of Alignment The assessment is based on calculating days from the beginning of treatment till the end of the alignment stage which is expected to happen within 5 to 6 months The time required in days will be calculated from the beginning of treatment till the end of the alignment stage
Change in Little's Index of Irregularity T0: one day before the beginning of treatment; T1: after 1 month; T2: after 2 months; T3: after 4 months; T4: after 5 months; T5: at the end of the alignment stage which is expected within 5 - 6 months The irregularity of the lower incisors is calculated by measuring the amount of deviations of the anatomic contact points between the six anterior teeth in the horizontal direction in mm, since the sum of these measurements represents the value of the index (Little, 1975). When the sum of these deviations is less than 3 mm, this indicates that the teeth are slightly crowded. When the sum is greater than 10 mm, this indicated very severe crowding.
The ordinary orthodontic treatment aims to keep this Index less than 1 mm at the end of treatment.Change in Alveolar Defect T1: One day before the beginning of treatment; T2: at the end of the alignment stage which is expected within 5-6 months Using cone-beam computed tomography (CBCT), each tooth root will be evaluated in axial and cross-sectional slices at the buccal and lingual surfaces. When no cortical bone is observed around the root in at least three sequential views, this will be considered an alveolar defect. If the alveolar bone height is more than 2 mm from the cemento-enamel junction, it will be classified as dehiscence ,When the defect does not involve the alveolar crest, this case will be classified as fenestration.
The status of the alveolar bone will be assessed twice.
- Secondary Outcome Measures
Name Time Method Change in inter-canine width T1: One day before the beginning of treatment; T2: at the end of the alignment stage which is expected within 5-6 months The distance between the cusp tips of the lower canines. This variable will be measured on plaster models.
T1: One day before the beginning of treatment; T2: at the end of the alignment stageChange in Alveolar Bone Thickness T1: One day before the beginning of treatment; T2: at the end of the alignment stage which is expected within 5-6 months Will be measured for each of the lower anterior teeth in the cervical, middle, and apical regions. This will be achieved by using the ruler which will be positioned perpendicular to tooth long axis from the root surface (without measuring the periodontal ligament ) to the most external surface of the cortical bone.
Change in Lower Incisors' Inclination T1: One day before the beginning of treatment; T2: at the end of the alignment stage which is expected within 5-6 months The angle between the long axis of the lower Incisors and the mandible plane (Go-Me) will be measured.
Change in the positioning of the upper lip T1: One day before the beginning of treatment; T2: at the end of the alignment stage which is expected within 5-6 months It is going to be evaluated by Ricketts' analysis (E-Line). This is done by drawing a reference line between the tip of the nose and the most prominent point on the chin contour (Pogonion).
The distance of the upper lip from this line is a measure of lip positioning.Change in the positioning of the lower lip T1: One day before the beginning of treatment; T2: at the end of the alignment stage which is expected within 5-6 months It is going to be evaluated by Ricketts' analysis (E-Line). This is done by drawing a reference line between the tip of the nose and the most prominent point on the chin contour (Pogonion).
The distance of the lower lip from this line is a measure of lower lip positioning.Change in the naso-labial angle T1: One day before the beginning of treatment; T2: at the end of the alignment stage which is expected within 5-6 months It is the angle formed between the lower border of the nose and the upper lip.
Trial Locations
- Locations (1)
Department of Orthodontics, University of Damascus Dental School
🇸🇾Damascus, Syrian Arab Republic