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Letters to the Editors
February 1962

"THE NONSURGICAL TEMPOROMANDIBULAR JOINT SYNDROME"

Arch Otolaryngol. 1962;75(2):181. doi:10.1001/archotol.1962.00740040187019
Abstract

To the Editor: Eponyms with which one grows up professionally have a special place in our affections, and it is therefore a pleasure to read Dr. Costen's comments about our paper. We appreciate this opportunity to clarify the points he raises. No claim to 100% effectiveness is made; only "the large proportion of patients seen in the clinic respond to simple reversible therapy" (page 685), and "there is no clear and easy road to their cure."

Although Dr. Costen has never actually called the mandible a Class III lever, he mentions "abnormal pressure on the joint" and "uncontrolled movement of the condyles backward"1 which could occur only if the mandible were a Class III lever. It should be pointed out that "opening the bite" is another way of saying "increasing the vertical dimension of the jaw" which Dr. Costen mentioned in several publications,1,2 or "the use of an

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