SUCCESS RATE OF DIFFERENT INSERTION SITES AND LENGTHS OF MINI SCREWS IN ORTHODONTIC PATIENTS

Authors

  • Ghulam Rasool Professor Department of Orthodontics& Dean Khyber College of Dentistry, Peshawar.
  • Ahsan Mahmood Shah Associate Professor, Department of Orthodontics KCD, Peshawar.
  • Samia Rahman FCPS Part II trainee, Department of Orthodontics KCD, Peshawar.
  • Umar Hussain FCPS Part II trainee, Department of Orthodontics KCD, Peshawar.
  • Anam Saeed FCPS Part II trainee, Department of Orthodontics KCD, Peshawar.
  • Palwasha Gul FCPS Part II trainee, Department of Orthodontics KCD, Peshawar.

DOI:

https://doi.org/10.33279/jkcd.v8i01.384

Keywords:

Mini screws, Orthodontics, Insertion sites

Abstract

Objective:To determine the success rate of different insertion sites and lengths of miniscrews in orthodontic patients.
Materials and methods:A cross-sectional study conducted at the orthodontics department of Khyber college of dentistry from July 2017 to October 2017. A total of 105 titanium mini screws of different lengths 6mm,7mm, 8mm and 10mm were inserted in different sites of maxilla and mandible in 60 orthodontic patients. All miniscrews were self-drilling. The stability was checked
at the time of insertion and rechecked after the application of orthodontic load for three months. Potential confounding variables like gender, miniscrews length and insertion site were evaluated. Chi-square tests were applied to determine the influence of each factor on the stability of miniscrews in each patient using SPSS version 20.
Results:The overall success rate for miniscrews was 78 percent for three months. The success rate in males (n=42) was 76 percent and in females (n=63) was 79 percent. No significant differences were found for gender (p value= 0.548) and insertion site of miniscrews (p-value 0.93). Anterior maxilla (n=14) showed most stable results (85 percent). The only factor having a significant effect on miniscrews stability was its length (p-value 0.050). The stability increases with increase in length that is 10 mm (n=12) were the most stable length (100 percent), and 6mm (n=19) was the least stable (52 percent).
Conclusion: Miniscrews insertion sites have no significant influence on stability, but careful selection should be made to avoid trauma to adjacent vital structures. A longer mini screw has greater stability and is a statistically significant factor and is recommended to achieve higher mechanical retention to fulfil anchorage demands for an orthodontic appliance.

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Published

2018-03-31

How to Cite

Rasool, G. ., Ahsan Mahmood Shah, Samia Rahman, Umar Hussain, Anam Saeed, & Palwasha Gul. (2018). SUCCESS RATE OF DIFFERENT INSERTION SITES AND LENGTHS OF MINI SCREWS IN ORTHODONTIC PATIENTS. JOURNAL OF KHYBER COLLEGE OF DENTISTRY, 8(01), 49–53. https://doi.org/10.33279/jkcd.v8i01.384

Issue

Vol. 8 No. 01 (2018): Journal of Khyber College of Dentistry

Section

Original Article

License

Copyright (c) 2018 Ghulam Rasool, Ahsan Mahmood Shah, Samia Rahman, Umar Hussain, Anam Saeed, Palwasha Gul

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