CAD/CAM international magazine of digital dentistry No. 4, 2016

| cone beam supplement treatment planning based on CBCT 36 CAD/CAM 4 2016 Augmentation and implant treatment Two-stage surgery in the severely resorbed edentulous mandible Author: Dr Marko Nikolic, Croatia Introduction An adequate bone volume at the future implant site is a prerequisite for ideal implant placement andimplantsuccess.Aresidualbonewithavertical dimension less than 5.0mm indicates a cut-off point and implies the need of additional aug- mentation procedures in connection with implant insertion, whereas higher values of the alveolar crest ≥ 5.0mm are considered to be sufficient for treatment with standard-diameter implants without the urgent need of any horizontal bone augmentation.1 Distant donor sites like the anterior and posterior iliac crest and intraoral areas like the retroman- Fig. 1: Pre-operative panoramic X-ray: poor periodontal and prosthetic conditions. Figs. 2a & b: Pre-operative CBCT: aspect of the extremely horizontally resorbed alveolar ridges of the anterior part of the mandible. Fig. 1 Fig. 2a Fig. 2b 42016

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