The enigma of limited mouth opening: Implications for the clinician and practice
Originally at sciencedirect.com
Summary & scoring by The Bell Brief (Dr. Jennifer Bell) using the Drill-Down Protocol (Drill-Down Score) — not the original publisher.
Why it matters for dental
JADA review highlights that unexplained trismus can delay or derail routine dental procedures; practice owners and restorative clinicians need protocols to identify red-flag etiologies early, avoid treatment delays, and reduce liability exposure.
Key points
- Pre-treatment limited opening (<35 mm) is linked to higher rates of incomplete restorations, failed crown seating, and patient dissatisfaction.
- Article flags six occult causes (myofascial pain, occult infection, neoplasia, medication-induced fibrosis, systemic sclerosis, TMJ ankylosis) that require immediate referral rather than in-office stretching.
- Authors recommend adding a single inter-incisal measurement and brief questionnaire to every new-patient exam to capture changes before procedures begin.
- Failure to document baseline opening increases malpractice risk if post-op trismus occurs after long or difficult appointments.
Who should care
Read the original on Journal of the American Dental Association (JADA)
Full reporting and any paywall content live on sciencedirect.com. We summarize and score; we do not republish.
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