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Definition

It compares the influence of dental contact on the total activity of the right antimere to the left one. This value indicates how much the right muscles are influenced by the dental contact compared to the left ones and helps to identify if there is an eventual asymmetry in the distribution of the occlusal contacts. In the presence of strong asymmetries, the condylar loads may be strongly unbalanced with a higher probability of introducing temporo-mandibular disturbances.

 

Example aspects

A positive index shows a prevalence of activity of the right muscles. A negative index indicates, instead, a greater differential activity of the left antimere. 95% of healthy subjects have asymmetry values between + 10% and -10% (0% no asymmetry).