Report of the committee on principles, practices, and nomenclature

REPORT OF THE PRACTICES, C.

H. SCHUYLER, Con:mittee,

COMMITTEE ON PRINCIPLES, AND NOMENCLATURE* L.

G.

Academy

JORDAN,

AND V.

of Denture

H.

SEARS

Prosthetics

B

ALANCED MUSCLE TONUS is the characteristic tonic contraction of muscles that are antagonists. TOWS is the slight, continuous contraction which is characteristic of a muscle at rest.

Basal Seat.-The nature of the tissues.

entire

tissue

area under

the denture

Cast.-The form obtained by pouring a liquid a mold or impression and allowing it to harden.

metal

base, regardless or other

Denture Foundation.-That portion of the basal seat area that upper or lower denture base under occlusal load. Occluding

Relation.-The

jaw relation

at which the opposing

of the

material supports

into the

teeth occlude.

Rest Relation.-The relation of the mandible to the maxilla at which there exists in all of the muscles involved a state of balanced tonus. The rest relation of the mandible exists when all of the muscles involved are in a state of balanced tonus, but the degree of jaw separation in rest relation is dependent on the sagittal inclination of the head. CLYDE H. SCHUYLER,CHAIRMAN, 400 MADISON AVE., NEW YORK, N.Y. LUZERNEG. JORDAN,1801 EYE, ST., N.W., WASHINGTON, D.C. VICTOR H. SEARS, 1007 TRIBUNE TELEGRAMBLDG., SALT LAKE CITY, UTAH *These terms were taken from the Report of the Committee on Principles, Practices, and The list includes only those accepted Nomenclature of the Academy of Denture Prosthetics. by the Academy at its meeting in Los Angeles in 1953.

595