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Abstract
Objective: To assess the correlation between influencing factors such as patient age, gender, insertion side, and miniscrew length with the success and failure rates of orthodontic miniscrews. Materials and Methods:A total of 142 miniscrews were placed in five different zones in 72 patients. Three different lengths of miniscrews were used. Patients were divided into three different groups according to their age. Results: The highest success rate was observed in the upper right quadrant, while the lowest success rate was recorded in the lower left quadrant. Miniscrews with an 8mm length exhibited the highest success rate. Patients in group 1 showed the highest success rate; however, the chi-square test revealed no correlation with the success/failure rate of miniscrews. Additionally, the success rate of miniscrews placed in female patients was higher than in male patients, with a significant correlation between gender and the success/failure rate of miniscrews. Our findings highlight that the placement location (anterior palate vs. intraradicular) does not significantly impact the success rate of miniscrews. Instead, patient gender appears to be a more critical factor influencing miniscrew survival. Conclusion: This retrospective study revealed that miniscrew success rate is not significantly influenced by insertion side, miniscrew length, or gender, but rather by patient age. Interradicular placement of miniscrews exhibits a success rate comparable to that of miniscrews placed in the anterior palate. This knowledge can help orthodontists make more informed decisions about miniscrew placement and patient selection, ultimately improving treatment outcomes and advancing orthodontic practice.
