Porcelain brackets during initial alignment: are self-ligating cosmetic brackets more efficient?
Online veröffentlicht: 14. Dez. 2023
Seitenbereich: 21 - 26
Eingereicht: 01. Sept. 2009
Akzeptiert: 01. Okt. 2009
DOI: https://doi.org/10.2478/aoj-2010-0004
© 2010 Peter Miles et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Objective
To compare the effectiveness of a self-ligating (SL) porcelain bracket with a conventional porcelain (CP) bracket tied with ligatures for initial alignment in the upper arch, to compare the discomfort of both bracket – archwire combinations and to compare the times taken (both assisted and unassisted) to untie and ligate both bracket – archwire combinations.
Methods
Sixty nonextraction patients were randomly assigned to either a group with CP brackets on the upper six anterior teeth and conventional metal brackets on the premolars and first molars, or a group with SL porcelain brackets on the anterior teeth and SL metal brackets on the posterior teeth. The CP brackets were tied with coated ligatures. The irregularity index was measured at the start of treatment and at the first recall 10.7 weeks later. Discomfort was recorded over the first week with a Likert scale and the times to untie and ligate the six anterior porcelain brackets (assisted and unassisted) were recorded.
Results
There were no differences in irregularities at the start of treatment (
Conclusion
Porcelain SL brackets were faster to untie and ligate by 22 seconds per bracket, but there were no significant differences in the alignment achieved or discomfort experienced.