Laser fluorescence of dentin caries covered with a novel nano-filled sealant.

The aim of the present study was to assess the possibility to measure caries-induced laser fluorescence underneath a novel nano-filled fissure sealant. Sixty freshly extracted human teeth with occlusal dentine carious lesions were horizontally divided, exposing the respective lesion. Teeth were randomly assigned to three groups: (I) white fissure sealant with filler particles (Fissurit F, Voco), (II) clear fissure sealant without filler particles (Fissurit, Voco) and (III) novel experimental fissure sealant with nano-filler particles (Voco).

Heat generation caused by ablation of restorative materials with an ultrashort pulse laser (USPL) system.

Heat generation during the removal of dental restorative materials may lead to a temperature increase and cause painful sensations or damage dental tissues. The aim of this study was to assess heat generation in dental restoration materials following laser ablation using an ultrashort pulse laser (USPL) system. A total of 225 specimens of phosphate cement (PC), ceramic (CE), and composite (C) were used, evaluating a thickness of 1 to 5 mm each.

Implantation of artificial penile nodules--a review of literature.

Introduction: The implantation of penile nodules under the foreskin is unusual in Western society. This practice is known in Slavic and Asian cultures and occasionally appears in the western world. We review the historical and medical evidence found in world literature to this date.

Evaluation of selective calculus removal by a fluorescence feedback-controlled Er:YAG laser in vitro.

Objectives: To evaluate the removal of subgingival calculus and dental hard tissues depending on the threshold level of a fluorescence feedback-controlled Er:YAG laser.

Material And Methods: Twenty teeth with calculus on the root surface were treated with an Er:YAG laser. Laser settings were 140 mJ and 10 Hz.