Method of attaching a dental article to the surface of the tooth

A method of attaching a dental article to the surface of a tooth, the method comprising:

• providing the dental article to be attached to the surface of the tooth;
• applying a coating comprising upconversion phosphors to a surface of the dental article configured to face toward the surface of the tooth;
• applying to the surface of the tooth a dental cement composition comprising a polymerizable resin and a photoinitiator, wherein the dental cement composition is substantially free of upconversion phosphors;
• placing the dental article on the surface of the tooth such that the coating comprising upconversion phosphors is adjacent the dental cement composition;
• irradiating the coating comprising upconversion phosphors with a radiation source that emits radiation at a pre-determined fixed wavelength in a range of the electromagnetic spectrum that causes the upconversion phosphors to emit radiation at an activation wavelength of the dental cement composition photoinitiator such that the dental cement composition cures in a region adjacent the coating;
• and
• removing remaining uncured dental cement composition outside the dental article from the tooth.