before and after
February 8, 2023
Prof. Stefan Vandeweghe, DMD, PhD

Clinical Case: Preserve & protect: Adhesive endocrown restoration

Using 3M™ Scotchbond™ Universal Plus Adhesive and 3M™ RelyX™ Universal Resin Cement.

About the Case

A 32-year-old female patient contacted the practice with a fractured filling on tooth 36 which included part of the cusps. The tooth had been endodontically treated several years before. It was decided to remove the composite and restore with a lithium disilicate endocrown. Endocrowns take advantage of both adhesion and the retention from the pulp-chamber walls. In endodontically treated molars they offer a reliable alternative to the more invasive traditional full coverage crowns. Key to success for endocrowns is a resin cement with a strong bond to the restoration material and to the tooth. In this case 3M™ RelyX™ Universal Resin Cement was used in combination with 3M™ Scotchbond™ Universal Plus Adhesive in the selective enamel etch technique.

Initial situation

Initial situation.


Endocrown preparation.

Selective enamel etch

Selective enamel etch.


Application of 3M™ Scotchbond™ Universal Plus Adhesive as silane primer to the HF-etched glass ceramic bonding surface.

Excess clean-up.

Final light cure

Final light cure (20 sec).

Final result.

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