Skeletal and dental effects of serial extractions performed with or without maxillary expansion : a retrospective controlled study

Quinzi, Vincenzo (avtor), Ettore Salvati, Simone (avtor), Lerda, Fabrizio (avtor), Compri, Matilde (avtor), Rosa, Marco (avtor), Primožič, Jasmina (avtor)

Objectives: The study aimed to compare severe crowding treatment's skeletal and dental effects by serial extractions or maxillary expansion and serial extractions in the mixed dentition phase. Setting and Sample Population: The retrospective controlled study included lateral cephalograms of 78 subjects aged 8.5 ± 1.4 years, 52 consecutively treated because of severe crowding, and 26 untreated controls matched for baseline age and observational period. Methods: Subjects were clustered according to the treatment modality, either serial extraction (EX) or expansion and extraction (EXP-EX) group. Sagittal and vertical skeletal as well as dental cephalometric parameters were assessed at baseline and after the eruption of all permanent posterior teeth, and group comparisons were performed. Results: Both treatment modalities significantly affected the vertical skeletal parameters in terms of decreasing the mandibular and occlusal plane inclination and increasing the facial height index. A distinct treatment effect on the gonial angle was observed, with a significant decrease in its superior part observed in both extraction groups. The annualized changes in the superior part of the gonial angle significantly differ (P= .036) between the Control (−0.04 ± 0.6), EX (−0.44 ± 0.6) and EXP-EX (−0.34 ± 0.5) groups. Upper and lower incisor inclination did not change significantly in any of the groups; however, the interincisal angle at follow-up was significantly smaller in the Control compared with both treated groups. Conclusions: Serial extractions and a combination of maxillary expansion and serial extractions have similar significant skeletal effects, mainly affecting vertical cephalometric parameters if performed during the pre-pubertal growth phase.

• Jezik: Angleški jezik
• Ključne besede: alveolar bone, micro-CT, orthodontic, tooth movement, growth change, maxillary expansion, serial extractions
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: MF - Medicinska fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: Str. 642-649
• Številčenje: Vol. 26, iss. 4
• PID: 20.500.12556/RUL-152305
• UDK: 616.31
• ISSN pri članku: 1601-6343
• DOI: 10.1111/ocr.12647
• COBISS.SI-ID: 147272195
• Datum objave v RUL: 17.11.2023

Gradivo je del revije

• Naslov: Orthodontics and craniofacial research
• Skrajšan naslov: Orthod. craniofac. res.
• Založnik: Wiley
• ISSN: 1601-6343
• COBISS.SI-ID: 517802009

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: alveolarna kost, mikro-CT, ortodontija, premikanje zob

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P3-0374
• Naslov: Preiskovanje orofacialnega področja za izboljšanje oralnega zdravja