Upper airways changes associated with orthodontic molar distalization by Pendulum appliance in adolescent patients: a multicenter retrospective cephalometric study.

Autor: Serafin M; Department of Biomedical Sciences for Health, University of Milan, Via Mangiagalli 31, 20133, Milan, Italy. marco.serafin@unimi.it., Kinzinger G; Department of Orthodontics, Saarland University, Homburg, Germany., Hourfar J; Department of Orthodontics, Saarland University, Homburg, Germany., Mantellini V; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy.; IRCSS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy., Fastuca R; Private Practice, Lugano, Swiss, Switzerland., Caprioglio A; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy.; IRCSS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
Jazyk: angličtina
Zdroj: Head & face medicine [Head Face Med] 2024 Oct 16; Vol. 20 (1), pp. 59. Date of Electronic Publication: 2024 Oct 16.
DOI: 10.1186/s13005-024-00461-x
Abstrakt: Objectives: The purpose of this multicenter retrospective study was to perform a two-dimensional analysis of upper airway changes in adolescent patients following molar distalization with the Pendulum appliance.
Materials and Methods: The study involved the cephalometric analysis of 88 patients, retrospectively categorized into two groups: skeletal Class II with a dental Class II molar relationship (36 patients, mean age 12.6 ± 1.1 years) and skeletal Class I with a dental Class II molar relationship (54 patients, mean age 12.3 ± 1.2 years). Changes were observed using lateral radiographs before (T0) and after Pendulum appliance removal (T1); treatment time averaged 7 months. Upper airways were subsequently analyzed by tracing lateral radiographs. The Shapiro-Wilk test showed a normal distribution of the data, therefore parametric tests were used for statistical analysis. Intragroup changes between T0 and T1 were evaluated using paired t-tests, and intergroup differences were assessed using independent student t-tests; statistical significance was set at 0.05.
Results: Statistically significant differences were observed in the skeletal measurements that characterized both groups, particularly in ANB and Wits appraisal, at T0 (P < 0.001). After molar distalization, Class I and Class II groups reported no statistically significant differences with changes almost equal to zero between timepoints (P > 0.05). Additionally, intergroup comparisons of airway changes at T1 did not show statistically significant differences (P > 0.05).
Conclusions: The Pendulum appliance does not significantly change the upper airway dimensions in Class I and Class II malocclusion patients, thereby minimizing potential respiratory risks.
(© 2024. The Author(s).)
Databáze: MEDLINE
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