Severely worn teeth, or teeth that are badly broken down, with little tooth structure remaining, can provide a significant challenge for restoration. Crown lengthening assisted with the proper maintenance of biologic width, can help ensure that the marginal placement of restorations remains supra or equigingival, thereby not causing problems for the health of the marginal gingiva. Piezo-electrical surgery is a relatively new surgical technique and offers considerable advantages over conventional methods of bone surgery. Therefore this case series is an attempt to describe the beneficial effects of peizo surgery in the crown lengthening procedure.