scholarly journals Assignment of autogenous bone grafts for reconstruction of the alveolar ridge before implant placement

2019 ◽  
Vol 25 (1) ◽  
pp. 1 ◽  
Author(s):  
Claire Fourcade ◽  
Philippe Lesclous ◽  
Julien Guiol
Keyword(s):  
Bone Resorption ◽  
Bone Grafts ◽  
Autologous Bone Graft ◽  
Parietal Bone ◽  
Surgical Reconstruction ◽  
Autogenous Bone ◽  
Implant Placement ◽  
First Choice ◽  
The Mean ◽  
Autologous Bone

Introduction:Autologous bone is considered to be the “gold standard” for the reconstruction of the reabsorbed alveolar ridges. For small defects, autologous bone samples can be harvested from intraoral donor sites. However, extraoral donor sites are the first choice for any extensive augmentation of the alveolar ridges. The resorption of the bone grafts depends on several factors, including the recipient sites, the donor sites, volume of the bone grafts and whether or not the patient smokes. The aim of this study was to investigate the rate of autologous bone graft resorption, 4 months after the surgical reconstruction, according to their sites of origin, parietal or ramus, according to the grafted site, mandible or maxilla and according to the surgical indications.Patients and methods:22 patients had 51 reconstructions of alveolar ridges with ramic or parietal onlay bone grafts. The increase of bone volume was assessed with computed tomography, immediately after augmentation (V0) and 4 months after the procedure (V1), before the placement of dental implants.Results:The mean rate of bone resorption was 26% for the parietal bone grafts and 27% for the ramus bone grafts after 4 months (p: ns). This rate was 26% for maxillary grafts and 25% for mandibular grafts (p: ns). This rate varies from 22% to 33% according to the etiology of the bone defect but these variations are not significant and ultimately, this rate of bone resorption was unaffected by the gender of patients.Conclusion:Based on these findings, the resorption of onlay grafts doesnʼt seems to be affected by the recipient and donor sites nor by the etiology of the bone defects. Parietal and ramic bone grafts showed limited resorption rates for the pre-implant reconstruction of alveolar ridges.

scholarly journals Unprotected autogenous bone block grafts in anterior maxilla: Resorption rates and clinical outcomes

2017 ◽  
Vol 74 (4) ◽  
pp. 305-310
Author(s):  
Ivan Kosanic ◽  
Miroslav Andric ◽  
Bozidar Brkovic ◽  
Vladimir Kokovic ◽  
Milan Jurisic
Keyword(s):  
Bone Grafts ◽  
Autogenous Bone ◽  
Bone Block ◽  
Alveolar Ridge ◽  
Implant Stability ◽  
Anterior Maxilla ◽  
Ridge Augmentation ◽  
Implant Placement ◽  
Mean Width ◽  
The Mean

Background/Aim. The use of autogenous bone grafts for augmentation of the resorbed alveolar ridge is still considered the gold standard in implant dentistry. The aim of this study was to analyze the resorption rate of autogenous bone block grafts from the retromolar region placed in the frontal segment of the upper jaw unprotected by barrier membranes, to assess the stability of implants placed into the grafted bone, as well as to monitor its changes during the healing period. Methods. The study included 18 patients with a total of 20 grafted sites. The residual alveolar ridge was measured before and after the augmentation and prior to implant placement. All implants were restored with provisional crowns within 48 hours after the placement. Implant stability was assessed using resonance frequency analysis. Results. The average period from ridge augmentation to reentry was 5.4 months (range 4?6 months). At reentry the healed alveolar ridge had a mean width of 6.1 ? 1.27 mm. The mean calculated width gain was 3.04 ? 1.22 mm. The overall surface resorption of block grafts was 0.68 ? 0.69 mm (18.85%). At the time of implant placement the mean value of implant stability quotient (ISQ) was 71.25 ? 5.77. The lowest ISQ values were noted after three weeks of healing, followed by a gradual increase until week 12. After 12 weeks implants showed significantly higher ISQ values compared to primary stability (p < 0.05 Wilcoxon signed ranks test). During the 3-years followup period no cases of implant loss were recorded. Conclusion. Despite a significant resorption of bone grafts, it was possible to place implants in all the cases and to use the immediate loading protocol without affecting implant survival rate.

Autogenous Bone Graft Versus Bovine Bone Graft in Association With Platelet-Rich Plasma for the Reconstruction of Alveolar Clefts: A Pilot Study

2018 ◽  
Vol 56 (1) ◽  
pp. 134-140 ◽  
Author(s):  
Bruno Torres Bezerra ◽  
John Nadson Andrade Pinho ◽  
Fabrício Eneas Diniz Figueiredo ◽  
José Renato Moraes Carvalho Barreto Brandão ◽  
Lucas Celestino Guerzet Ayres ◽  
...  
Keyword(s):  
Bone Graft ◽  
Platelet Rich Plasma ◽  
Bone Grafts ◽  
Autogenous Bone ◽  
Bovine Bone ◽  
Alveolar Bone Grafting ◽  
Significant Difference ◽  
Group A ◽  
Autologous Bone ◽  
Group B

Objective: To compare the outcomes of 2 different bone graft materials: autogenous bone grafts from mandibular symphysis and bovine bone grafts associated with platelet-rich plasma (PRP). Methods: Twenty individuals met the inclusion criteria and accepted to participate in the study. Group A patients underwent alveolar bone grafting using autologous bone and group B patients using a bovine bone graft associated with PRP. Cone beam computed tomography scans were taken and reconstructed 3-dimensionally for all patients preoperatively and 1 year postoperatively. Results: A significant reduction was detected for area and volume within group A and group B. Between groups, no significant difference was found for area or volume. Conclusions: Bovine grafts associated with PRP are a good option for the reconstruction of alveolar clefts and provide good results such as autologous bone grafts.

scholarly journals Healing at the Interface Between Autologous Block Bone Grafts and Recipient Sites Using n-Butyl-2-Cyanoacrylate Adhesive as Fixation: Histomorphometric Study in Rabbits

2017 ◽  
Vol 43 (6) ◽  
pp. 447-455 ◽  
Author(s):  
Enzo De Santis ◽  
Erick Ricardo Silva ◽  
Evandro Neto Carneiro Martins ◽  
Riccardo Favero ◽  
Daniele Botticelli ◽  
...  
Keyword(s):  
Bone Grafts ◽  
Autologous Bone Graft ◽  
Cortical Layers ◽  
Lateral Aspect ◽  
Histomorphometric Study ◽  
Cyanoacrylate Adhesive ◽  
Fixation Screw ◽  
Autologous Bone ◽  
Autologous Bone Grafts ◽  
Over Time

The aim of the present split-mouth (split-plot) study was to describe the sequential healing in the interface between autologous bone grafts and recipient parent bone, fixed using an n-butyl-2-cyanoacrylate adhesive with or without an additional titanium fixation screw. Bone grafts were collected from the calvaria and fixed to the lateral aspect of the mandible in 24 rabbits. The cortical layers of the recipient sites were perforated, and the grafts were randomly fixed using an n-butyl-2-cyanocrylate adhesive, either alone or in conjunction with a 1.5 mm × 6.0 mm titanium fixation screw. The animals were sacrificed after 3, 7, 20, and 40 days, and histomorphometric evaluations of the interface between graft and parent bone were performed. Only 2 of 6 grafts in each group were partially incorporated to the parent bone after 40 days of healing. The remaining grafts were separated from the parent bone by adhesive and connective tissue. It was concluded that the use of n-butyl-2-cyanoacrylate as fixation of an autologous bone graft to the lateral aspect of the mandible was able to maintain the fixation over time but did not incorporate the graft to the recipient sites. Use of fixation screws did not improve the healing.

Immediate Implant Placement Following Extraction with Autogenous Bone Grafts - A Case Report

2014 ◽  
Vol 11 (2) ◽  
pp. 879-882
Author(s):  
Vijay Ebenezer ◽  
B. Ramalingam ◽  
S. Nathan ◽  
Vigil Dev Asir ◽  
T. Muthumani ◽  
...  
Keyword(s):  
Case Report ◽  
Bone Grafts ◽  
Autogenous Bone ◽  
Implant Placement ◽  
Immediate Implant ◽  
Autogenous Bone Grafts

scholarly journals Histological Features and Biocompatibility of Bone and Soft Tissue Substitutes in the Atrophic Alveolar Ridge Reconstruction

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Carlo Maiorana ◽  
Mario Beretta ◽  
Davide Rancitelli ◽  
Giovanni Battista Grossi ◽  
Marco Cicciù ◽  
...  
Keyword(s):  
Collagen Matrix ◽  
Daily Practice ◽  
Bone Substitutes ◽  
Surgical Reconstruction ◽  
Autogenous Bone ◽  
Common Procedure ◽  
Histological Features ◽  
Implant Placement ◽  
Complete Restoration ◽  
Tissue Grafts

The reconstruction of the atrophic alveolar ridges for implant placement is today a common procedure in dentistry daily practice. The surgical reconstruction provides for the optimization of the supporting bone for the implants and a restoration of the amount of keratinized gingiva for esthetic and functional reasons. In the past, tissue regeneration has been performed with autogenous bone and free gingival or connective tissue grafts. Nowadays, bone substitutes and specific collagen matrix allow for a complete restoration of the atrophic ridge without invasive harvesting procedures. A maxillary reconstruction of an atrophic ridge by means of tissue substitutes and its histological features are then presented.

scholarly journals Hydrogels that allow and facilitate bone repair, remodeling, and regeneration

2015 ◽  
Vol 3 (40) ◽  
pp. 7818-7830 ◽  
Author(s):  
Aaron R. Short ◽  
Deepthi Koralla ◽  
Ameya Deshmukh ◽  
Benjamin Wissel ◽  
Benjamin Stocker ◽  
...  
Keyword(s):  
Gold Standard ◽  
Bone Repair ◽  
Standard Treatment ◽  
Bone Grafts ◽  
Bone Defects ◽  
Surgical Reconstruction ◽  
Congenital Deformity ◽  
Bone Stock ◽  
Autologous Bone ◽  
Autologous Bone Grafts

Bone defects can originate from a variety of causes, including trauma, cancer, congenital deformity, and surgical reconstruction. Success of the current “gold standard” treatment (i.e., autologous bone grafts) is greatly influenced by insufficient or inappropriate bone stock.

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