Edlund J, Lamm C J
J Oral Rehabil. 1980 Mar;7(2):123-30. doi: 10.1111/j.1365-2842.1980.tb00428.x.
A method for measuring masticatory efficiency is described as well as a mathematical formula expressing the masticatory efficiency as an index. A silicone compound was used as test material. The masticatory efficiency index was calculated as the mean of the best four out of five consecutive measurements of masticatory efficiency calculated from a specially designed formula.