Removal of adhesively bonded all-ceramic restorations

Intraoral Applications of Lasers in the Prosthetic Rehabilitation with Fixed Partial Dentures—A Narrative Review

“…The popularity of ceramic restorations in dental practice presents a challenge for dentists related to their removal for functional or esthetic failures [ 70 ]. The traditional method of debonding all-ceramic crowns or veneers involves using a diamond [ 71 ] or tungsten carbide burs [ 70 , 72 ] with appropriate air–water cooling. This approach is associated with numerous disadvantages, such as the difficulty of the procedure, the possibility of the pulp’s thermal damage, the necessity of using local anesthesia, and particular precision.…”

“…This approach is associated with numerous disadvantages, such as the difficulty of the procedure, the possibility of the pulp’s thermal damage, the necessity of using local anesthesia, and particular precision. This is because restorations, bonding cement, and the underlying dentin all share a similar color [ 70 , 71 ]. As a consequence, damage of the tooth structure is highly possible [ 73 ].…”

“…As a consequence, damage of the tooth structure is highly possible [ 73 ]. Furthermore, the conventional removal is time-consuming [ 70 , 71 ]. A comparison of the traditional and laser methods of debonding is presented in Figure 8 .…”

“…Due to the above, lasers are becoming more and more important tools in prosthetics. Two types are used to remove ceramic dental restorations: Er,Cr:YSGG (2780 nm) and Er:YAG (2940 nm) [ 71 , 73 ]. Both of these are applied in a pulsed mode [ 70 , 72 ], but additional clinical trials are required to establish an accurate protocol for the removal of fixed partial dentures.…”

“…As a result, dentists can debond and remove entire ceramic restorations from teeth without producing iatrogenic damage of the enamel or dentin [ 73 , 74 ]. This, in turn, enables the correction or repair process outside a patient’s oral cavity and then recementing of the restorations [ 71 ]. The conventional method of using rotary instruments is always associated with damaging the integrity of the ceramic [ 73 ].…”