Carbon dioxide laser application enhances the effect of silane primer on the shear bond strength between porcelain and composite resin

Shear bond strength of resin cement to an acid etched and a laser irradiated ceramic surface

“…Relatively safe and easy methods of laser irradiation for surface modification have been proposed 28-33. Studies have examined the use of several laser types, including neodymium: yttrium aluminum garnet (Nd:YAG), erbium (Er):YAG,34 erbium, chromium: yttrium, scandium, gallium, garnet (Er,Cr:YSGG),35 and carbon dioxide36 lasers. The use of pulsed erbium lasers, such as Er:YAG and Er,Cr:YSGG lasers, has been considered for surface treatment.…”

Effect of Silane Heat Treatment by Laser on the Bond Strength of a Repair Composite to Feldspathic Porcelain

“…Current repair procedures are based on micromechanical and chemical bonding, and the resin‐porcelain bond depends on the ceramic surface treatment applied . Several preparation methods are used to treat the ceramic surfaces, such as acid etching by hydrofluoric acid (HF), air abrasion with aluminum oxide particles, silica coating, and laser irradiation . These procedures are applied to increase the surface roughness and improve bond strength …”

“…Recent studies have tested the application of high‐intensity lasers for treating ceramic surfaces and improving the micromechanical bond between resin and ceramic . Erbium and CO 2 lasers are thought to interact with surface water molecules, inducing microexplosions that create roughness on the ceramic surface . The Er:YAG laser has a wavelength of 2940 nm, coinciding with the peak absorption of water .…”

“…The Er:YAG laser has a wavelength of 2940 nm, coinciding with the peak absorption of water . The wavelength of the CO 2 laser is 10,600 nm, and the corresponding radiation is readily absorbed by water . Whereas the use of these lasers for improving the resin‐ceramic bond strength has previously been investigated, to the best of our knowledge only one study assessed the use of the laser for silane heat treatment .…”

Effect of Er,Cr:YSGG laser surface conditioning on the adhesion of fiber- reinforced composite and zirconia intraradicular posts to the root dentin

“…The use of several laser types such as Nd:YAG, Er:YAG [21], erbium, chromium: yttrium, scandium, gallium, garnet (Er,Cr:YSGG) [22] and carbon dioxide (CO 2 ) lasers have been studied also for dental applications [23]. Er:YAG and Er,Cr:YSGG lasers have essentially similar basic properties apart from slight differences in terms of laser wavelength in the range of available pulse durations and in energy [24].…”