Crowding, Tooth
Conditions
Keywords
PAOO, moderate crowding, gingival index, plaque index, papillary bleeding index
Brief summary
Patients at the Orthodontic Department of the 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, and radiographic images) will be studied to ensure that the selection criteria are accurately matched. This study aims to compare two groups of patients with moderate crowding of the lower anterior teeth. Experimental group: the patients in this group will be treated with periodontally accelerated osteogenic orthodontics Control group: the patients in this group will be treated using fixed appliances without any acceleration method.
Detailed description
Correction of irregular teeth can take a long time, and this depends on various factors such as the good compliance of the patient, the amount of dental crowding, and the need for extraction in the course of orthodontic treatment. Many methods have been used to accelerate tooth movement, and recently the PAOO technique has emerged as an effective therapeutic intervention. PAOO is a promising procedure but only a few cases were reported in the literature. Controlled clinical and histological studies are needed to understand the biology of tooth movement with this procedure, the effect on teeth and bone, post-retention stability, measuring the volume of mature bone formation, and determining the status of the periodontium and roots after treatment.
Interventions
PROCEDUREPAOO
Periodontally accelerated osteogenic orthodontics will be applied to treat patients with moderate crowding.
OTHERFixed appliance
Fixed appliances will be applied to treat patients with moderate crowding without any acceleration methods.
Sponsors
Damascus University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 28 Years
Healthy volunteers
No
Inclusion criteria
* skeletal class I malocclusion (ANB=2-4) * normal vertical growth pattern. * moderate crowding of lower anterior teeth (i.e., 4-6 millimeters of a tooth size-arch length discrepancy) * 1 to 3 mm of overjet and 1 to 4 mm of the overbite * good oral health
Exclusion criteria
* medical, social, and psycho contraindications to oral surgery * presence of periodontal diseases * poor oral hygiene * previous orthodontic treatment
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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). The ordinary orthodontic treatment aims to keep this Index less than 1 mm at the end of treatment. |
| Change in the inter-canine width | T0: One day before the beginning of treatment; T1: at the end of the alignment stage | The distance between the cusp tips of the lower canines. This variable will be measured on plaster models. |
| Change in the inter-2nd premolar width | T0: One day before the beginning of treatment; T1: at the end of the alignment stage | The distance between the central fossae of the lower second premolars. This variable will be measured on plaster models. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in the Gingival index | T0: One day before the beginning of treatment; T1: at the end of the alignment stage | Measured by degrees at each tooth: (0) Normal gingival; (1) mild inflammation; (2) Moderate inflammation; (3) severe inflammation |
| Change in the Plaque index | T0: One day before the beginning of treatment; T1: at the end of the alignment stage | Measured by degrees at each tooth: (0) No plaque; (1) thin plaque layer; (2) moderate plaque layer; (3) severe plaque along the gingival margin |
| Change in the Papillary Bleeding Index | T0: One day before the beginning of treatment; T1: at the end of the alignment stage | Measured by the severity of any bleeding: (0) No bleeding; (1) a single discreet bleeding point; (2) several isolated bleeding points; (3) the interdental triangle fills with blood shortly after probing; (4) profuse bleeding occurs after probing. |
Countries
Syria
Outcome results
None listed