scholarly journals Application of modern computer-aided technologies in the production of individual bone graft: A case report

2015 ◽  
Vol 72 (12) ◽  
pp. 1126-1131 ◽  
Author(s):  
Sinisa Mirkovic ◽  
Igor Budak ◽  
Tatjana Puskar ◽  
Ana Tadic ◽  
Mario Sokac ◽  
...  

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.

2012 ◽  
Vol 38 (S1) ◽  
pp. 533-537 ◽  
Author(s):  
Maria A. Peñarrocha ◽  
Jose A. Vina ◽  
Laura Maestre ◽  
David Peñarrocha-Oltra

The aim is to describe bilateral vertical ridge augmentation with intraoral block grafts and guided bone regeneration in the posterior mandible in preparation for implant placement. A 61-year-old woman, edentulous in the posterior mandible, presented for implant rehabilitation. The radiographic study showed 3 to 6 mm of bone height from the ridge to the mandibular canal. Autogenous bone block grafts from the chin and the mandibular ramus, harvested with ultrasonics, were used to augment the alveolar ridge. To reduce resorption, the grafts were covered with particulate alloplastic material and a collagen membrane. Delayed implants were placed 6 months after vertical augmentation, and 3 months later implants were loaded with a fixed prosthesis. A temporary sensory complication occurred, but 12 months after implant loading, there were no failures. In this case report block bone grafting was a feasible option to vertically augment the alveolar ridge in the posterior mandible.


Folia Medica ◽  
2017 ◽  
Vol 59 (3) ◽  
pp. 362-366 ◽  
Author(s):  
Ivan L. Chenchev ◽  
Vasilena V. Ivanova ◽  
Deyan Z. Neychev ◽  
Radka B. Cholakova

AbstractBackground:Different barrier membranes and augmentation techniques are used in oral surgery to recover lost bone structures with varied success. Recently, a combination between bone graft materials and Platelet-Rich-Fibrin (PRF) is implemented in the periodontology and implantology.Aim: The aim of this case report was to assess the possibility for augmentation of the alveolar ridge in the frontal region of the upper jaw, utilizing a combination of bone graft material, injectable platelet-rich-fibrin (i-PRF) and advanced platelet-rich fibrin (A-PRF).Materials and methods:An 18 year-old male with expulsion of tooth 11 and partial fracture of the alveolar ridge was treated with augmentation of the alveolar ridge using bone graft material, injectable platelet–rich-fibrin(i-PRF) and advanced platelet-rich-fibrin (A-PRF). Clinical results were reviewed 4 months after the augmentation and a dental implant was placed.Results:The postoperative period was uneventful. The control CBCT scan showed good organization of new bone allowing placement of a dental implant.Conclusion:The successful clinical and radiographic results of the case suggest that using A-PRF and i-PRF can be beneficial for bone augmentation of the alveolar ridge before implant placement.


2014 ◽  
Vol 4 (3) ◽  
pp. 129-138
Author(s):  
Robert Spears ◽  
Ibtisam Al-Hashimi ◽  
Eric S Solomon ◽  
David G Kerns ◽  
William W Hallmon ◽  
...  

ABSTRACT Calcium sulfate is a biologically compatible osteoconductive graft material that binds underlying bone graft and provide space maintenance. The purpose of this study was to evaluate calcium sulfate as a barrier compared to a collagen membrane for augmentation of a standardized surgically created ridge defect. For this purpose, bilateral extraction of mandibular premolars was performed on six foxhounds (Canis familiaris). Eight weeks later, a standardized osseous ridge defects (24 total) were created using a 6 mm trephine. The study was approved by the Institutional Animal Care and Use Committee (IACUC) at Baylor College of Dentistry. The osseous defects were allocated into three groups (8 defects each): group 1 received autogenous bone graft covered with collagen membrane (CM); group 2 received autogenous bone graft covered with calcium sulfate barrier (CS), and group 3 was used as control and did not receive bone augmentation and was used as control. The animals were sacrificed after 12 weeks following bone augmentation and sites were evaluated histologically for total ridge width, percentage of bone gain and cortical bone thickness. Results All sites exhibited bony fill within the defect. Analysis of variance did not reveal statistically significant difference in the mean total bone gain among CM, CS, and control groups (12.2,11.6, and 11.9) mm2, respectively, p = 0.875. Conclusion Calcium sulfate does not appear to improve bone regeneration in an osseous defect. How to cite this article Heaton ML, Kerns DG, Hallmon WW, Kessler HP, Spears R, Solomon ES, Al-Hashimi I. Comparison of Calcium Sulfate and Bovine Collagen Barriers for Alveolar Ridge Augmentation. J Contemp Dent 2014;4(3):129-138.


2020 ◽  
Vol 8 (8) ◽  
pp. 501-507
Author(s):  
Deepika Gorantla ◽  
◽  
SVVS Musalaiah ◽  
Pavuluri Aravind Kumar ◽  
Narendra Babu M. ◽  
...  

2018 ◽  
Vol 2 (2) ◽  
pp. 475-479 ◽  
Author(s):  
Claudio Ferreira ◽  
Rafael Ortega-Lopes ◽  
Bruno Martins ◽  
Claudinei Ferreira ◽  
Fábio Coelho ◽  
...  

The aim of the present study was to report the clinical case of a patient with a vertical defect of the alveolar ridge, which prevented the installation of dental implants without first treating the defect in question. A 32-year old female patient with a height defect of approximately 6 mm in the region of the missing absent teeth (13 and 14). The patient was treated using the sandwich osteotomy technique, with the interposition of a block bone graft of bovine origin. No complications were reported in the post- operative period. After seven months, two dental implants were installed in the relevant region. The bovine bone graft was incorporated into the relevant area. The bovine bone block graft used in this clinical case was shown to be a viable option for interposition between bone segments that have been osteotomized via sandwich osteotomy.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Shahabe A. Saquib ◽  
Mohammed Yunis S. Bhat ◽  
Mukhtar A. Javali ◽  
Shaheen V. Shamsuddin ◽  
Mohammed A. Khader

There are various causes for residual alveolar ridge defects, most common being the collapse of the cortical plate during extraction. Localized defects of alveolar ridge affect prosthetic restoration due to poor emergence profile of the pontic. Various soft tissue augmentation procedures have been recommended for the correction of these defects. Abrams’s roll technique has been widely used for soft tissue ridge augmentation in the maxillary anterior region where aesthetics is a prime concern. The original Abrams’s roll technique has been modified and revisited by many authors to overcome the limitations. The present clinical case report discusses the modified roll technique as an option to treat alveolar ridge deformity. The current procedure resulted in expectable ridge augmentation, uneventful healing, and good aesthetic outcome. Hence this modified technique can be selected for the treatment of mild to moderate Seibert class I ridge defects in the aesthetic zone.


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