Digital Dentistry by Arthur R.G. Cortes

Author:Arthur R.G. Cortes [Cortes, Arthur R.G.]
Language: eng
Format: epub
ISBN: 9781119852018
Published: 2022-04-19T00:00:00+00:00

Case Report 4.6 Digitally Guided Direct Resin Composite Restorations

(Clinical technique by Dr José Lincoln de Queirós Jr and Dr Thiago Ottoboni)

Try in the digitally designed 3D‐printed guides in the mouth and check the adaptation.

Isolation of the guides. The guides need to receive an insulator internally, as they are also printed in resin. The material indicated for this isolation is cyanoacrylate, which allows isolation of the contact between the resin and the guide with a very thin layer, leaving no residues and maintaining the planned texture design.

Application of the resin in its respective guide, following the programmed sequence. For reasons of layer strength and guide thickness, the process is initiated by construction of the dentin layer. After that, the palatal layer is performed and finally the enamel layer. If greater chromatic characterization is required, it is possible to associate dyes between the second and third stage of construction (palatal and enamel guide respectively), achieving more complex chromatic results at the end of the process

After construction of the restoration, it is important to highlight that the expected texture is very close to the postfinishing phase of the traditional sculpture technique. Therefore, further adjustments in morphology and finishing are not necessary, and after the excess is removed with a scalpel and finishing the interface between the restoration and the tooth, it is possible to start the polishing sequence of the applied resins (Figures 4.138–4.147). New possibilities of this technique are already under development, such as its use with subtractive cases, where there is a need for wear on the tooth structure/removal of old restorations, in association with digitally planned wear guides.

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