Coronary laser angioplasty is limited by a high rate of dissection and the occurrence of abrupt closure and perforation. The aim of this study was to visualize the mechanical effects of pulsed lasers on two chamber in vitro models. These models consisted of 1 or 2 agar layers and calcium carbonate inclusions (1-layer model) or lipid (2-layer model) simulating lipid or calcified tissue. The incl...

Threshold radiant exposure of the cornea of gray rabbits was evaluated for Argon- and YAG-Laser light. Threshold for the Argonlaser is about 15 kJ/cm2 (exposure time 200 ms to 2 s, spot size 65 micron). For experimental and methodical reasons the value for the YAG-Laser (115 kJ/cm2) is of limited accuracy. The healing process of supraliminal lesions of the cornea is observed clinically and hist...

Neodymium: Yttrium-Aluminum-Garnet (Nd-YAG) laser treatment of epithelial ingrowth was found promising with high success rates in cases of primary post-LASIK epithelial ingrowth. However, the application range of this procedure is not well-known. For the first time, the authors report the outcome of a patient treated with Nd-YAG laser for multiple recurrences of post-laser in situ keratomileusi...

STATEMENT OF THE PROBLEM Some studies have reported the bond strength to be significantly lower in fluorotic enamels than the non-fluorosed. PURPOSE The purpose of this study was to evaluate the shear bond streongth of metallic brackets to non-fluorosed and fluorosed teeth after different enamel conditioning. MATERIALS AND METHOD A total of 176 freshly extracted human premolars (88 non-fluo...

OBJECTIVES This study evaluated the in vitro shear bond strength (SBS) of a resin-based pit-and-fissure sealant (Fluroshield [F], Dentsply/Caulk) associated with either an etch-and-rinse (Adper Single Bond 2 [SB], 3M/ESPE) or a two-step self-etch adhesive system (Adper SE Plus [SE], 3M/ESPE) on Er: YAG laser-irradiated enamel. MATERIALS AND METHODS Seventeen sound third molar crowns were embe...

Posterior capsular opacification, also known as after cataract develops in 33 % of patients after uneventful cataract surgery. Nd-YAG Laser capsulotomy is the treatment of choice for PCO and is routinely performed by the general ophthalmologist on an OPD basis. Endophthalmitis, although a rare complication after Nd-YAG Laser capsulotomy, has been reported in the literature. We report a case of ...