The clinical effects of Invisalign⁃aided molar distalization in the treatment of mild or moderate crowding in an⁃ terior teeth
Objective The present study evaluated the clinical effects of Invisalign⁃aided molar distalization in the treatment of mild or moderate crowding in anterior teeth. Methods Eleven adults with class Ⅱ dental malocclusion and a class Ⅰ skeletal pattern were selected as subjects. The patients molar o...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases
2018-05-01
|
| Series: | 口腔疾病防治 |
| Subjects: | |
| Online Access: | http://www.kqjbfz.com/EN/10.12016/j.issn.2096-1456.2018.05.007 |
| Summary: | Objective The present study evaluated the clinical effects of Invisalign⁃aided molar distalization in the
treatment of mild or moderate crowding in anterior teeth. Methods Eleven adults with class Ⅱ dental malocclusion and
a class Ⅰ skeletal pattern were selected as subjects. The patients molar occlusion did not exhibit an end⁃to⁃end relation⁃
ship. Subjects were selected for straight profile, mild or moderate crowding in maxillary teeth and normal or mild crowd⁃
ing in mandibular teeth. Nonextraction and Invisalign⁃aided molar distalization were planned for treatment. Model mea⁃
surement and cephalometric analysis were performed before and after treatment. A paired t test was used for the statistical
analysis. Results The crowding and class Ⅱ molar relationship were corrected in all 11 patients. The upper first molars
were moved distally by 2.32 mm (t = 3.315, P < 0.01) and were inclined distally by 3.35° (t = 3.959, P < 0.01) on average.
The central incisors were protruded by 1.72 ° (t = 3.274, P < 0.01) on average. The buccal movement of the upper first mo⁃
lars was 1.32 mm (t = 2.461, P < 0.05) on average. The above differences were statistically significant. Conclusion Up⁃
per molar distalization can be achieved using a class Ⅱ elastic⁃aided Invisalign technique. The end⁃to⁃end molar occlu⁃
sion can be corrected, and front teeth with mild or moderate crowding can be aligned using our treatment protocol. |
|---|---|
| ISSN: | 2096-1456 2096-1456 |