Assessment of midpalatal suture ossification using cone-beam computed tomography

Area of Science:

• Dentistry
• Orthodontics
• Radiology

Background:

• Midpalatal suture ossification is crucial for orthodontic treatment planning, particularly in younger patients.
• Existing research shows discrepancies regarding the timing of midpalatal suture closure.
• Cone-beam computed tomography (CBCT) offers a detailed method for evaluating suture development.

Purpose of the Study:

• To evaluate the ossification and morphology of the midpalatal suture using CBCT.
• To correlate suture development with age and gender in an Iranian population.

Main Methods:

• A cross-sectional study analyzed CBCT images of 144 Iranian subjects (aged 10-70 years).
• Suture morphology and ossification stages (A-E) were assessed in 1mm axial slices.
• Ossification degree was calculated as the ratio of ossified to total suture length.

Main Results:

• A strong correlation was found between age groups and midpalatal suture developmental stages (r=0.681, p<0.001).
• Ossification predominantly occurred in a posterior-to-anterior direction (98% of cases).
• Aging significantly correlated with increased ossification (p<0.001), with no significant gender difference (p=0.193).

Conclusions:

• While suture closure accelerates with age, age alone is insufficient to determine the developmental stage.
• CBCT imaging is indispensable for accurately assessing midpalatal suture ossification and morphology.
• This study highlights the utility of CBCT in orthodontic diagnosis and treatment planning.