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- Title
Bonded versus banded rapid palatal expander followed by facial mask therapy: analysis on digital dental casts.
- Authors
Lione, Roberta; Tomas Huanca Ghislanzoni, Luis; Defraia, Efisio; Franchi, Lorenzo; Cozza, Paola
- Abstract
Objectives: To compare the dental effects produced by a bonded versus a banded expander combined with facial mask (FM) in patients with Class III malocclusion by means of digital dental casts. Materials and methods: Two groups of patients with Class III malocclusion and maxillary transverse deficiency in the deciduous or early mixed dentition were selected. The first group consisted of 25 subjects (12 females; 13 males) with a mean age of 7.4 years (SD 1.2 years) treated with a bonded expander and FM. The second group consisted of 25 subjects (13 females; 12 males) with a mean age of 8.1 years (SD 1.3 years) treated with a banded expander and FM. For each subject of the two groups, initial (pre-treatment, T1) and final (post-treatment, T2) dental casts were taken and scanned. Maxillary digital models of T1 and T2 were superimposed on the palatal rugae in order to analyse the maxillary anchorage loss. Significant between-group differences were tested with independent sample t-test (P < 0.05). Results: No statistical differences were found for any of the variables observed. Conclusion: Orthopaedic treatment of Class III malocclusion with either a bonded or a banded expander and FM during the deciduous or early mixed dentition induced a significant expansion of the maxillary arch and a slight mesialization of the posterior anchoring teeth with no difference between the two intraoral appliance designs.
- Subjects
MAXILLARY expansion; CORRECTIVE orthodontics; MAXILLA; FACIAL masks (Cosmetics); DENTAL casting
- Publication
European Journal of Orthodontics, 2016, Vol 38, Issue 2, p217
- ISSN
0141-5387
- Publication type
Article
- DOI
10.1093/ejo/cjv038