|
Document Type |
: |
Thesis |
|
Document Title |
: |
“THREE-DIMENTIONAL EVALUATION OF CLEAR ALIGNER TREATMENT OUTCOME.” "تقييم ثلاثي الأبعاد لنتائج العلاج بإستخدام القوالب التقويمية الشفافة" |
|
Subject |
: |
Faculty of Dentistry |
|
Document Language |
: |
Arabic |
|
Abstract |
: |
Objectives: Evaluate the predictability of clear aligner treatment in correcting maxillary transverse and antro-posterior movements using Cone Beam Computed Tomography (CBCT).
Methods: Thirty adult orthodontic patients (8 males and 22 females, mean age 37±9.56 years) were enrolled in this retrospective study. Subjects underwent orthodontic treatment using Invisalign®. Predicted tooth movements were obtained from ClinCheck®, while actual tooth movements were calculated by measuring the difference between pre- and post-treatment tooth position using CBCT. Measurements were obtained using Carestream Imaging Software. Statistical analyses were done using SPSS. Paired sample t-test was used to compare the mean differences between predicted and actual movements at the crown and root levels.
Results: There was a significant difference between the actual and predicted expansion at the crown level for the first molars, and first premolars, mean differences 1.88 mm (±1.6) and 0.64 mm (±1.7) respectively. No significant differences were found between the actual and predicted expansion measurements at the crown level for the canines, -0.05 mm (±1.4). Similarly, mean difference between the actual and predicted expansion for the root level showed statistical significance for first molars and first premolars but not for canines. Anterior maxillary incisors, n = 120 tooth, were evaluated for antro-posterior movements. Statistical analyses showed statistically significant difference between the mean difference of actual and predicated measurement in the proclination group, 6.4mm (±5.6) but no statistical significance was seen in the mean differences for the retroclination group, 2.02mm (±6.8). The mean difference between actual and predicted measurements was statistically significant for retrusive movements, -1.10(±2.9). However, no statistical significance was seen in the protrusive group, -0.88 (±3.3).
Conclusion: The predictability of transverse movements is more accurate at the canines than premolars and molars. Retroclination is more predictable than proclination, however, retrusive movements are less |
|
Supervisor |
: |
Prof. Ali Habibullah Hassan |
|
Thesis Type |
: |
Master Thesis |
|
Publishing Year |
: |
1442 AH
2020 AD |
|
Co-Supervisor |
: |
Prof. Khalid Hashim Zawawi |
|
Added Date |
: |
Tuesday, January 5, 2021 |
|
Researchers
| الاء عبدالله باسودان | Basudan, Alaa Abdullah | Researcher | Master | |
|