The success and effectiveness of miniscrew-assisted rapid palatal expansion are age- and sex-dependent

• Published in: Clinical oral investigations 2022-03, Vol.26 (3), p.2993-3003
• Main Authors: Jeon, Ji Yoon, Choi, Sung-Hwan, Chung, Chooryung Judi, Lee, Kee-Joon
• Format: Article
• Language: English
• Subjects: Dentistry; Female; Humans; Male; Maxilla; Medicine; Original; Original Article; Palatal Expansion Technique; Palate; Retrospective Studies; Sutures
• ISSN: 1432-6981; 1436-3771
• DOI: 10.1007/s00784-021-04281-0

Objectives This study aimed to assess the success rate and the amount of suture separation after the miniscrew-assisted rapid palatal expansion (MARPE) procedure in relation to the chronological age and sex of the patients. Materials and methods The periapical radiographs of 215 subjects (95 male; 120 female; range, 6–60 years) who had undergone MARPE treatment were retrospectively analyzed. The success of suture separation was determined and, in suture-separated subjects, the amount of suture separation was evaluated by suture separation ratio calculated from the periapical radiograph obtained after active expansion. Association tests were performed using linear-by-linear association, the Jonckheere-Terpstra test, Fisher’s exact test, and the Mann–Whitney U test, and linear regression models were also developed. Results The success rate of suture separation was 61.05% in male, 94.17% in female, and 79.53% in both sexes. There was a statistically significant association between older age and suture nonseparation in male ( p