[The silver amalgam cavity related to the cuspid-CSA angle]

The AA. evaluated the cusps sides inclination variability of about 1,000 subjects. From the data it has been observed a greater vestibular sides inclination (between 38 degrees and 41 degrees) compared to lingual's (between 29 degrees and 32 degrees). For this the AA. suggest the need of some cavity modifications for improving the CSA/AMA ratio during the conservative procedures only when cuspidal sides are more binded.