Keywords
Permanent dental restoration
Computer-aided design
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Abstract
Objective: To report a clinical case of endo-periodontal lesion treatment, followed by a 3-year follow-up of an endocrown restoration using 3D-printed resin. Case description: An adult male patient presented with an extensive periapical lesion, alveolar bone loss, and coronal destruction associated with tooth 44. Endodontic therapy was performed over 30 days, with weekly intracanal medication changes following initial biomechanical instrumentation. Radiographic examinations showed significant regression of the lesion, allowing for periodontal debridement and biofilm control. One year later, an endocrown restoration was performed. The following clinical sequence was adopted: internal preparation of the pulp chamber space with a 3131 bur, external preparation of the cervical margin in chamfer with a 4138 bur, finishing of the preparation, impression with addition silicone, pouring of a type IV gypsum model, occlusal registration, provisional acrylic resin endocrown (color 66), laboratory scanning of the models, digital restoration planning, 3D printing in NanoLab resin (A2, Wilcos), followed by self-adhesive resin cementation. Final considerations: The combination of endodontic and periodontal therapies, followed by rehabilitation with a 3D-printed resin endocrown, allowed for the preservation of tooth 44 in functional and stable condition within the arch, remaining healthy after 3 years of follow-up.
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