Basics of masticatory function and parafunction and the occlusal strategy to manage it.

This program is one of five presentations that were presented in an all day seminar titled "From Toothache to Migraine: The Trigeminally Mediated Disorders; Diagnosis, Treatment and Prevention." The goal of this program is to take the mystery out of the cause and progression of TM disorders and to make the evidenced based information useful in this regard. From pratical and relevent anatomy and physiology to the important concept of trigeminally initiated and mediated parafunction and parafunctional control, this 5-part program will attempt to separate fact from fiction. Diagnostically driven concepts will be thoroughly reviewed. Specific injuries that lead to both acute and chronic pain patterns will be described in terms of causes, diagnosis and treatment. It will be demonstrated that dentists can play a key role in migraine headache as well as obstructive sleep disorders. In this second program, Dr. Jim Boyd will discuss abnormal anatomy and physiology, diagnosis, treatment and prevention of trigeminally mediated disorders.

AGD course code: 206

Last Reviewed: 07/29/2012

1. Describe the abnormal anatomy and physiology of the posterior temporalis, lateral pterygoid and the masseter.
2. Understand the function of the masticatory system.
3. Identify diagnosis of parafunction of the masticatory system.
4. Describe the migraine cycle.
5. State treatment options for parafunction.

I. Abnormal Anatomy and Physiology
a. Posterior Temporalis
b. Lateral Pterygoid
c. Masseter
II. Function of the Masticatory System
III. Parafunction of the Masticatory System / Diagnosis
a. Centered Primary Clenching
b. Working Side Resistance
c. Non-Working Side Resistance
d. Working and Non-Working Side Resistance
e. Contra-Lateral Canine Resistance
f. Protrusive Resistance
IV. Migraine
V. Treatment and Prevention

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Lipton, Shipp, Larach-Robinson JADA 124:115, 1993

Sessle BJ, et al. Pain 27:219-236,1986

Silberstein SD, Lipton RB, Dalessio DJ. Overview, diagnosis, and classification. In: Silberstein SD, Lipton RB, Dalessio DJ, eds. Wolff’s Headache And Other Head Pain. 7th ed. Oxford, England: Oxford University Press; 2001:20.

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Mitchell PG. Br Dent J 1980;149:167-170