Related Experiment Video
Updated: Jul 27, 2026

08:07
A Morphometric and Cellular Analysis Method for the Murine Mandibular Condyle
Published on: January 11, 2018
The coronoid process as a cause of mandibular hypomobility--case reports
M Gross1, A Gavish, S Calderon
1Section of Occlusion, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.
Journal of Oral Rehabilitation
|December 31, 1997
Summary
This study highlights the coronoid process as a key factor in restricted jaw opening. Evaluating the buccal vestibular space during mandibular movement is crucial for diagnosing diverse causes of limited jaw function.
Area of Science:
- Dentistry
- Oral and Maxillofacial Surgery
- Anatomy
Background:
- Restriction of mandibular opening can stem from various causes.
- The coronoid process plays a critical role in jaw function and movement.
Observation:
- Four diverse cases illustrate coronoid process abnormalities affecting mandibular movement.
- Case 1: Unilateral hyperplasia and osteochondroma of the coronoid process.
- Case 2: Short, divergent coronoid processes with displaced third molars.
- Cases 3 & 4: Narrow vestibular space due to coronoid process proximity to molars.
Findings:
- Hyperplasia, osteochondroma, and anatomical variations of the coronoid process can impede jaw opening.
- The relationship between the coronoid process and surrounding structures, like third molars, is vital.
- Buccal vestibular space width is a significant indicator during mandibular movement assessment.
Implications:
- Clinicians should pay close attention to the coronoid process when diagnosing limited jaw opening.
- Incorporating assessment of the buccal vestibular space during mandibular movements is recommended for comprehensive evaluation.
- Understanding coronoid process anatomy and its variations is essential for effective treatment planning.

