Orthodontically induced root resorption in maxillary first molar during canine retraction on mini-implant | ||
| Egyptian Orthodontic Journal | ||
| Article 1, Volume 47, June 2015, June 2015, Pages 1-17 PDF (1.03 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/eos.2015.78724 | ||
| Authors | ||
| Ibrahim Negm* 1; Khaled Aboulazm2 | ||
| 1Department of Orthodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt | ||
| 2Department of Orthodontics, Faculty Dentistry, Pharos University, Alexandria, Egypt. | ||
| Abstract | ||
| Objective: The aim of this study was to compare between the incidence of orthodontically induced root resorption (OIRR) of maxillary first molar during canine retraction utilizing conventional sliding mechanics and mini-implants assisted mechanics. Methods: The sample in this study consisted of 20 subjects, which were randomly and equally divided into two groups: group A; Conventional sliding mechanics group consisted of 10 subjects (7 males and 3 females) and group B; Mini-implant assisted mechanics group consisted of 10 subjects (5 males and 5 females). CBCT were taken before treatment and after canine retraction to evaluate the degree of OIRR. Paired t-test and ANOVA were used to compare the extent of OIRR in both groups and between the mesiobuccal, distobuccal, and palatal roots within each group pretreatment and post-retraction. Results: Displayed a statistically significant increase in OIRR of maxillary first molar with conventional sliding mechanics (P-value <0.001) and mesiobuccal root exhibited the highest degree of OIRR and the palatal root had the lowest OIRR within both groups. Conclusion: Mini-implant assisted mechanics during canine retraction decreases the amount of OIRR in the maxillary first molars thanimplementing conventional sliding mechanics. | ||
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