Comparative evaluation of sagittal anchorage loss in lingual and labial appliances during space closure: A pilot study
| Autor: | Shivanand Venkatesh, Sanjay V Ganeshkar, Joe E Rozario, Shreya Ajmera |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
business.industry
Intraclass correlation Dentistry Space closure Mean age Sagittal plane Comparative evaluation labial appliance lcsh:RK1-715 stomatognathic diseases medicine.anatomical_structure stomatognathic system lcsh:Dentistry lingual appliance medicine Premolar business Anchorage loss Anterior teeth |
| Zdroj: | APOS Trends in Orthodontics, Vol 5, Iss 1, Pp 33-37 (2015) |
| ISSN: | 2321-4600 |
| DOI: | 10.4103/2321-1407.148027 |
| Popis: | Aim The purpose of this investigation was to assess and compare the anchorage loss between labial and lingual appliance systems during space closure. Materials and Methods Twenty subjects were part of the study among which 10 subjects (mean age 21 ± 3.6 years) were treated using lingual appliance system (0.018” slot-STb™) and 10 subjects (mean age 19 ± 6.1 years) were treated using labial preadjusted edgewise appliance system (0.018” slot-MBT™). First premolar extractions were performed to enable retraction of anterior teeth. Lateral cephalometric radiographs were taken at two intervals, before starting space closure and after space closure that were connoted as T0 and T1 and were analyzed using the method described by Pancherz to measure anchorage loss. Intraclass correlation coefficient (ICC) was used to evaluate intraexaminer reliability of the measurements. Student’s t-test was performed to verify any statistical significant correlation between the labial and lingual appliance systems. Statistical differences were determined at the 95% confidence level (P < 0.05). Results The results showed that all ICC for lingual and labial group were ≥0.90 showing good repeatability of the measurements. Mean anchorage loss of 1.238 ± 0.17 mm in lingual appliance system and an anchorage loss of 2.06 ± 0.39 mm occurred with the labial appliance system. On the comparison between the two appliance systems, lingual appliance demonstrated a significantly lesser anchorage loss than did the labial appliance. Interpretation and Conclusion This prospective study concludes with the fact that lingual appliance provided better anchorage control than labial appliance during space closure. Use of lingual appliance could be considered in critical anchorage cases when compared with labial appliance. |
| Databáze: | OpenAIRE |
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