Ortodontik tedavilerde kullanılan farklı kesici diş intrüzyon mekaniklerinin değerlendirilmesi

Aim: The purpose of this study is to determine the usage prevalence of four different incisor intrusion arch mechanics used in the orthodontic treatment and to reveal the relationship of these mechanics with dental malocclusion type, treatment type, jaw applied, amount of intrusion, arch wire material and arch wire size used. Methods: A total of 403 patients, 136 Angle Class I (mean age: 15.24±2.11 years), 134 Angle Class II (mean age: 14.35±2.62 years), 133 Angle Class III (mean age: 16.12±3.01 years) patients with orthodontic treatment were included in this retrospective study. The analysis of the procedures applied to the patients during the treatment was carried out using interactive computer software used in the orthodontics clinic. In the study, the second order step, Quiros, Jarabak and intrusion added retraction arches and intrusion processes were examined. Pearson Chi-Square and Fisher's Exact tests were used for statistical evaluation of the categorical data. Results: When the relationship between preferred intrusion mechanics is evaluated according to the amount of intrusion; the most preferred mechanics for 0.5-1 mm intrusion is step bending, the most preferred mechanics for 2 mm intrusion is the Jarabak intrusion arch, and for 3 mm intrusion, Quiros and Jarabak intrusion mechanics are used in equal numbers has been determined. When the usage prevalence of intrusion mechanics applied to the lower or upper jaw was evaluated, it was determined that step bending was applied to the upper jaw statistically significantly more than other mechanics. Conclusion: The second order step bending is preferred for intrusions up to 1 mm, which is the most used intrusion amount in the clinic. A greater number of intrusions have been made in the upper jaw and 0.016 x 0.022 -inch stainless steel wire is the most preferred material for all mechanics. The amount of intrusion should be determined according to the individual characteristics of the patient, treatment objectives and aesthetic expectations.