The Trimax is a composite contact instrument. By placing the tip into deep restorations or tight anatomically contact areas the operator can polymerize deep restorations with correct proximal anatomy. The micro light guide has a marginal ridge guide that “lights up” when curing and can be used in a number of different positions. Some of the benefits include: Improved polymerization and reduced shrinkage, eliminates open contact areas, ideal anatomical form for premolar, molar and large molar restorations. The tip provides a guide for proper marginal ridge height for improved anatomy.