Nasal breathing and the vertical dimension: A cephalometric study

Area of Science:

• Dentistry
• Orthodontics
• Pediatrics

Background:

• Mouth breathing can significantly impact craniofacial development.
• Understanding these impacts is crucial for early diagnosis and intervention.

Purpose of the Study:

• To conduct a cephalometric analysis of craniofacial parameters in mouth-breathers versus controls.
• To investigate the relationship between nasal respiration and vertical facial dimensions.

Main Methods:

• Cephalometric analysis of headfilms from 53 patients (aged 9-30).
• Comparison of craniofacial parameters between mouth-breathers and nose-breathers.

Main Results:

• Mouth-breathers exhibited mandibular retrusion (SNB) and posterior rotation.
• Increased anterior face height and decreased posterior face height (hyperdivergence) were observed in mouth-breathers.
• These changes were associated with retrognathism and open bite.

Conclusions:

• Significant cephalometric differences exist between mouth-breathers and nose-breathers.
• Multidisciplinary collaboration (pediatric dentists, orthodontists, ENT specialists) is vital for early diagnosis and treatment of childhood mouth-breathing.