Palatal changes after treatment of functional posterior cross-bite using elastodontic appliances: a 3D imaging study...

Area of Science:

• Orthodontics
• Pediatric Dentistry
• Craniofacial Development

Background:

• Functional posterior crossbite (FPXB) is a common malocclusion in children.
• FPXB can lead to asymmetry in palate dimensions and morphology.
• Early intervention is crucial for optimal craniofacial development.

Purpose of the Study:

• To evaluate changes in palate dimension and morphology following treatment of FPXB with elastodontic devices (EAs).
• To compare treatment outcomes between children receiving EAs and an untreated control group.

Main Methods:

• A treatment group (TG) of 25 children (mean age 7.3 years) received EA treatment for one year.
• A control group (CG) of 14 children (mean age 6.8 years) remained untreated.
• Intra-oral scans before (T0) and after (T1) treatment were analyzed for inter-canine and inter-molar widths, and palatal morphology using 3D imaging.

Main Results:

• At baseline (T0), both groups exhibited narrower palatal dimensions on the crossbite side and significant palatal asymmetry.
• After treatment (T1), the TG showed significant increases in inter-canine and inter-molar widths and reduced asymmetry (92.32% matching).
• The control group (CG) showed no significant changes in palate dimensions or symmetry between T0 and T1.

Conclusions:

• Elastodontic devices are effective in correcting functional posterior crossbite in mixed dentition.
• EA treatment promotes harmonious palatal development and restores symmetry in children.
• Early treatment of FPXB with EAs can positively influence craniofacial growth.