TY - JOUR AU - Palone, Mario AU - Panzeri, Pietro AU - Cremonini, Francesca AU - Spedicato, Giorgio Alfredo AU - Squarci, Virginia AU - Albertini, Paolo PY - 2021/11/17 Y2 - 2024/03/29 TI - Effect of Conventional Versus Passive Self-Ligating Vestibular Appliances on Torque, Tip and Transverse Dental Changes in Patients Affected by Class I Malocclusion: A Retrospective Study JF - Pesquisa Brasileira em Odontopediatria e Clínica Integrada JA - Pesqui Bras Odontopediatria Clin Integr VL - 21 IS - SE - DO - UR - https://revista.uepb.edu.br/PBOCI/article/view/759 SP - e0031 AB - <p><strong>Objective: </strong>To evaluate the effects of passive self-ligating appliances (PSLAs) and conventional ligating appliances (CLAs) during orthodontic treatment regarding torque, tip, and transversal dental changes. <strong>Material and Methods:</strong> Dental parameters were digitally acquired from pre- and post-treatment models of each subject belonging to two groups of patients treated with PSLAs (23 patients; 11 females and 12 males with a mean age of 14.2 ± 1.6 years) and CLAs (18 patients; 10 females and 8 males with a mean age of 14.3 ± 1.9 years), respectively. All subjects had Class I or slight Class II malocclusion (≤ 2mm), permanent dentition and no previous orthodontic treatment. After normality of data was assumed, a paired sample t-test rejected any side differences at T0 and, therefore, the data were grouped by tooth group. Statistical analyses were performed using a linear mixed-effect framework, assuming the appliance, time, and interactions as fixed effects and the tooth type as random effects. Finally, post-hoc effect analysis was used to contrast modeled marginal effects (p&lt;0.05). <strong>Results:</strong> For both appliances, there is a general increase of both torque and transverse values at T1, especially for PSLAs. Tip shows a general reduction in the lateral sectors for both appliances is registered. The only significant statistical difference referred to appliances’ efficacy is located to mandibular intermolar width. <strong>Conclusion:</strong> Both appliances have an expansive potential for both torque and transverse dental changes. No evident differences are detectable between appliances except for the rate of the mandibular intermolar width increase.</p> ER -