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1.
Compend Contin Educ Dent ; 41(9): e5-e9, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33001661

RESUMEN

This article describes the case of a partially edentulous patient who had undergone template-guided implant placement and was treated using a triple digital scanning protocol that allowed for CAD/CAM prosthodontic rehabilitation in a complete digital workflow. At the impression appointment, the provisional implant-supported screw-retained prosthesis was digitally scanned both intraorally (first scan) and, after removal, extraorally (second scan). After the second scan, scan bodies were placed intraorally and an implant-level digital impression was taken (third scan). The three standard tessellation language (STL) files derived from the three digital scans were imported in a CAD software and superimposed into one file that contained all of the information from the implant 3D position, prosthesis contours, and transmucosal part of the peri-implant soft tissues. The superimposition of the three STL files led to one master file to serve as a blueprint for the definitive prosthesis. The definitive monolithic zirconia prosthesis was CAM copy-milled, externally stained, and inserted. The patient was satisfied with both the esthetic and functional outcome and the minimally invasive, time-efficient, two-visit restorative protocol. In summary, this case report illustrates a technique for a complete digital workflow in an implant rehabilitation for the replacement of multiple missing teeth in the esthetic zone in two visits.


Asunto(s)
Implantes Dentales , Flujo de Trabajo , Diseño Asistido por Computadora , Prótesis Dental de Soporte Implantado , Estética Dental , Humanos
2.
Compend Contin Educ Dent ; 35(10): e41-4, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25454819

RESUMEN

OBJECTIVE: The study was designed to compare changes in pulpal temperature during ablation of dental hard tissue while using two established erbium dental laser systems, a new CO2 laser system, and a conventional high-speed handpiece. METHODS: Eighty non-carious human extracted molars were separated into four sample groups of 20 teeth each. Three laser systems were used, respectively, to ablate the occlusal surface of the teeth in three of the groups for 60 seconds each. The high-speed handpiece was used to drill the occlusal surface of the fourth group for 60 seconds. Pulpal temperatures were measured using thermocouples inserted into each tooth's pulpal chamber prior to ablation. RESULTS: None of the average temperature increases approached the threshold of 5.5°C at which pulpal damage begins. On average, the pulpal temperature of teeth ablated with the Waterlase MD system increased the most (3.56°C). The traditional handpiece caused the lowest average temperature increase (1.57°C), followed by the LightWalker DT system (3.20°C) and the Solea CO2 system (3.30°C).


Asunto(s)
Temperatura Corporal/fisiología , Preparación de la Cavidad Dental/instrumentación , Equipo Dental de Alta Velocidad , Pulpa Dental/fisiología , Rayos Láser , Humanos , Técnicas In Vitro , Terapia por Láser/instrumentación , Láseres de Gas/uso terapéutico , Láseres de Estado Sólido/uso terapéutico , Termómetros
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