Document Type |
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Thesis |
Document Title |
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“THREE-DIMENTIONAL EVALUATION OF CLEAR ALIGNER TREATMENT OUTCOME.” "تقييم ثلاثي الأبعاد لنتائج العلاج بإستخدام القوالب التقويمية الشفافة" |
Subject |
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Faculty of Dentistry |
Document Language |
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Arabic |
Abstract |
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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 |
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Prof. Ali Habibullah Hassan |
Thesis Type |
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Master Thesis |
Publishing Year |
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1442 AH
2020 AD |
Co-Supervisor |
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Prof. Khalid Hashim Zawawi |
Added Date |
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Tuesday, January 5, 2021 |
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Researchers
الاء عبدالله باسودان | Basudan, Alaa Abdullah | Researcher | Master | |
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