Selective-etch adhesive bonding
August 4, 2021
Dr. Akit Patel, BDS, MFDS RCS, MClinDent (Pros), MRD RCS

Clinical Case: Selective-etch Adhesive Bonding of a Glass Ceramic Onlay

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

About the Case

A 57-year-old patient presented with a failed onlay on tooth 36. An IPS e.max® Press onlay was defined as the treatment plan. The onlay was primed with 3M™ Scotchbond™ Universal Plus Adhesive as the silane and cemented with 3M™ RelyX™ Universal Resin Cement and 3M™ Scotchbond™ Universal Plus Adhesive in the selective-etch adhesive technique.

Prepped tooth

Prepped tooth.

IPS e.max Press onlay

IPS e.max® Press onlay.

HF etching of bonding surface

HF etching of bonding surface.

External surface is protected with wax

External surface is protected with wax.

Application of adhesive

Application of 3M™ Scotchbond™ Universal Plus Adhesive as a silane.

Air drying

Air drying.

Selective enamel etch

Selective enamel etch with 3M™ Scotchbond™ Universal Etchant after cleaning of prep with 50µm alumina.

Tooth prep with applied adhesive

Tooth prep with applied 3M™ Scotchbond™ Universal Plus Adhesive after air-drying. No light-cure.

Excess cement clean-up

Excess cement clean-up.

Final result

Final result.

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