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A 35-year-old male presented with a carious lesion on the mesial and occlusal surfaces of the maxillary left first molar, as observed visually and radiographically.

A 50-year-old male presented with several deficient Class II composite restorations in the maxillary first quadrant. Active and recurrent decay was observed both visually and radiographically, and the patient reported issues with food impaction and gingival inflammation.

The restoration of cavities involving marginal ridges poses a big challenge in developing proper anatomical contours with tight natural contact areas.

The patient came to our observation reporting a domestic trauma (Ellis class II) that led to the fracture of element 2.1. A study model with associated diagnostic wax-up is made beforehand for the purpose of making a silicone key.