Comparative study on the influence of two kinds of different self ⁃locking brackets on the dental arch shape change in non⁃extraction patients
Objective By analyzing changes of dental arch width and length during the aligning and leveling period (non ⁃ extraction case) with two kinds of self ⁃locking bracket, compare the difference between the active self ⁃locking bracket with the passive bracket. Methods The data of dental arch perimete...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases
2017-02-01
|
| Series: | 口腔疾病防治 |
| Subjects: | |
| Online Access: | http://www.kqjbfz.com/EN/10.12016/j.issn.2096-1456.2017.02.008 |
| Summary: | Objective By analyzing changes of dental arch width and length during the aligning and leveling period
(non ⁃ extraction case) with two kinds of self ⁃locking bracket, compare the difference between the active self ⁃locking
bracket with the passive bracket. Methods The data of dental arch perimeter change amount and dental arch width
and length change amount (WU/L3, WU/L4, WU/L5, WU/L6, U/LL) were statistically analyzed using the correlation and
regression method by comparing active and passive brackets for the correction of dental arch variations. Two different
brackets for the correction of the measured values of the dental arch variations was analyzed by t⁃test. Results There
were statistical relationships between the amount of arch perimeter increase and the amount of width and length in⁃
crease. The regression equation was statistically significant (P < 0.05), It was greater impacted arch width increase to
arch perimeter in the self⁃locking. The t⁃test results showed WU3, WL3, WL6, LR 4 measured values (P < 0.05) statisti⁃
cally significant in the active self⁃locking group and passive group. Conclusion Active and passive self⁃locking brack⁃
et have good arch expansion effecting. The active self⁃locking bracket is slightly dominant than the passive bracket in
the expansion of the canine width whereas the active self⁃locking bracket is better than the passive in the expansion of the mandibular first molar and arch perimeter which should be widely applied to the appropriate cases. |
|---|---|
| ISSN: | 2096-1456 2096-1456 |