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Updated: Feb 8, 2026

Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach
Published on: August 24, 2018
Replacement of maxillary incisor crowns over discolored substrates in a single visit with a CAD-CAM system and
Gustavo Dartora1, Pedro Henrique Wentz Tretto1, Rodrigo Varella de Carvalho2
1Postgraduate student, Graduate Program in Dentistry, Meridional Faculty (IMED), Passo Fundo, Brazil.
Abstract:
Discolored substrates constitute a challenge to the esthetics of the definitive restoration. Because of technique sensitivity, the generally prolonged treatment time is a drawback to both the patient and the dentist. The technique described presents the replacement of ceramic maxillary incisors crowns over discolored substrates in a single visit by using a milling machine. Translucent blocks of a lithium silicate ceramic reinforced with zirconium dioxide particles were used. Intraoral scans of the trial restorations and of the tooth preparations were performed. The crown parameters were defined in the software. Ceramic blocks were milled in the presintered phase and characterized. The crowns were cemented at the end of the appointment with excellent esthetics.
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