Background: To present the benefits of high power lasers (Er: YAG and Nd: YAG) over the use of the high speed turbine for the extraction of ceramics restorations, without damaging the surfaces of the teeth; being a relatively easier and faster procedure without the use of anesthetic agents, and the preparation of the ceramic restorations and cementing in the single session; with a follow-up of 1 year. Objective: The benefits of lasers over high-speed turbine mechanical instrumentation for crown removal encompass efficient restoration recovery without damage to tooth surfaces; and a relatively easier and faster procedure without the use of anesthetic agents. Methods: The Er: YAG laser (no contact; 3.2-4.0 W, 20 Hz) was used to extract the porcelain prosthesis, followed by a gingivectomy with the Nd: YAG laser on tooth 12 to improve the gingival contour. The dental surfaces where the ceramic prosthesis will be cemented were scanned. Then, CAD / CAM technology was used to make the ceramic veneers that were cemented in the same session. Results: The efficacy the Er:YAG laser energy was observed by the decreased of the time to remove all-ceramic materials through ablation of bonding cements, reducing working time by 75% compared to a high-speed turbine. Conclusions: An Er: YAG laser can safely remove lithium disilicate crowns with the settings used in this study. Laser-assisted removal of all ceramic PDFs is a promising treatment protocol. The use of the Nd: YAG (2.0 W power, short 20Hz, 320 µm optical fiber, in contact) laser allowed gingivoplasty to be performed, automatically cauterizing avoiding post-operative bleeding, and facilitating the preparation of ceramic restorations the same day. The use of high-power lasers and the use of accompanying CAD / CAM technology allowed this clinical case to be completed in a single visit without the use of temporary restorations, achieving absolute patient satisfaction.   Keywords Er:YAG; Nd:YAG; Lithium disilicate ceramic; CAD/CAM.

Background: Oral squamous papilloma is the most common lesion caused by the Human Papillomavirus (HPV). They are benign proliferation, often painless, and with cauliflower or verrucous appearance. Objective: The aim of this report is to describe a clinical case of oral squamous papilloma and its treatment with a high-intensity diode laser. Case Presentation: A 65-year-old female patient sought care at the Special Laboratory of Lasers in Dentistry (LELO), University of São Paulo, Brazil, complaining of growth of a soft tissue mass in the jugal mucosa. Based on these clinical characteristics and history, Papilloma was the initial clinical diagnosis of the lesion. Although the lesion was small in size, measuring approximately 0.5 cm, the diagnostic method used was biopsy, and for treatment, a high-intensity diode laser at a wavelength of 980 nm was used. Conclusion: It can be concluded that Laser Therapy can be used by dental clinicians to treat these kinds of oral lesions and should be considered as an effective alternative to conventional surgery.

Congenital epulis (CE) is a rare condition in newborns, whose histogenesis remains unclear. It mostly presents as a circumscribed mass in the maxilla alveolar ridge of female neonates and can interfere with their normal breathing and breastfeeding. This benign oral lesion usually appears as a pedunculated nodule covered with normal mucosa that extends from the anterior vestibular alveolar ridge up to the posterior region. There are some pathological conditions that show clinical and histopathological features similar to those of CE, such as granular cell tumor, gingival cyst of the newborn, vascular malformations and others. This case report aimed to describe the clinical and pathological features of a newborn patient with a clinical and histopathological diagnosis of CE on the right side of the maxillary alveolar ridge, treated with excision by laser surgery, with a follow-up of 5 months without any sign of recurrence.

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