Introduction. An autologous bone (bone derived from the patient himself) is
considered to be a ?golden standard? in the treatment of bone defects and
partial atrophic alveolar ridge. However, large defects and bone losses are
difficult to restore in this manner, because extraction of large amounts of
autologous tissue can cause donor-site problems. Alternatively, data from
computed tomographic (CT) scan can be used to shape a precise 3D homologous
bone block using a computer-aided design-computer-aided manufacturing
(CAD-CAM) system. Case report. A 63-year old male patient referred to the
Clinic of Dentistry of Vojvodina in Novi Sad, because of teeth loss in the
right lateral region of the lower jaw. Clinical examination revealed a
pronounced resorption of the residual ridge of the lower jaw in the
aforementioned region, both horizontal and vertical. After clinical
examination, the patient was referred for 3D cone beam (CB)CT scan that
enables visualization of bony structures and accurate measurement of
dimensions of the residual alveolar ridge. Considering the large extent of
bone resorption, the required ridge augmentation was more than 3 mm in height
and 2 mm in width along the length of some 2 cm, thus the use of granular
material was excluded. After consulting prosthodontists and engineers from
the Faculty of Technical Sciences in Novi Sad we decided to fabricate an
individual (custom) bovine-derived bone graft designed according to the
obtained 3D CBCT scan. Conclusion. Application of 3D CBCT images,
computer-aided systems and software in manufacturing custom bone grafts
represents the most recent method of guided bone regeneration. This method
substantially reduces time of recovery and carries minimum risk of
postoperative complications, yet the results fully satisfy the requirements
of both the patient and the therapist.
A New Surgical Protocol For Horizontal Ridge Augmentation: Simplified Apposition Technique. Human Histologic and Radiographic Analysis After 2.5 Years of Follow-Up, A Case Report
