: The Semantic Scholar entry for the 2022 Nicot article provides a structured look at the etiology and management of this symptom.
: For understanding what constitutes "normal" opening, the study L’ouverture buccale normale dans la population française adulte available on ResearchGate or ScienceDirect is essential. It establishes that the average opening is roughly 50.77 mm , though this varies by height, age, and gender. Quick Summary of Key Findings Download Limitation d’ouverture buccale pdf
Medical professionals often note the functional impact of this condition: : The Semantic Scholar entry for the 2022
“These manifestations lead to major functional discomfort, mainly due to decreased mouth opening that seems to be frequently associated to oesophageal involvement.” ResearchGate though this varies by height