New Incision and Flap Designs in Autogenous Bone Ring Grafting with Simultaneous Implant Placement and an Evaluation of the Effect of First-Stage Wound Dehiscence in Dogs

2020 ◽  
Vol 35 (4) ◽  
pp. 721-730
Author(s):  
Ke Yu ◽  
Wenjia Liu ◽  
Hang Wang ◽  
Zhen Tan
Keyword(s):  
Wound Dehiscence ◽  
Autogenous Bone ◽  
Implant Placement

scholarly journals Immediate Implants with Early Loading Accompanying Autogenous Bone Grafting in a Maxilla with Periodontal Destruction: A Case Report

2021 ◽  
Vol 11 (16) ◽  
pp. 7560
Author(s):  
Jeong-Kui Ku ◽  
Jae-Young Kim ◽  
Jong-Ki Huh
Keyword(s):  
Bone Graft ◽  
Bone Grafting ◽  
Wound Dehiscence ◽  
Osteogenic Potential ◽  
Autogenous Bone ◽  
Autogenous Bone Grafting ◽  
Implant Placement ◽  
Early Loading ◽  
Immediate Implants ◽  
Delayed Implant Placement

In the case of multiple hopeless teeth and severe bone loss, a conventional healing protocol of 3–4 months has been recommended to prevent the possibility of infection or unpredictable resorption of grafted bone during consolidation of the extraction socket. The use of a provisional denture is inevitable in the case of delayed implant placement, which is a common risk factor for wound dehiscence after a bone graft. Although autogenous bone is still the gold standard for bone grafting because of its excellent biocompatibility and osteogenic potential, there has been controversy in the unpredictable resorption of autogenous bone grafting. We present a case of successful maxillary rehabilitation without the use of provisional dentures by immediate implant placement, with early loading accompanying an extensive autogenous bone graft.

scholarly journals Horizontal Ridge Augmentation Using a Xenograft Bone Substitute for Implant-Supported Fixed Rehabilitation: A Case Report with Four Years of Follow-Up

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Bruno Freitas Mello ◽  
Márcio de Carvalho Formiga ◽  
Luiz Fernando de Souza da Silva ◽  
Gustavo dos Santos Coura ◽  
Jamil Awad Shibli
Keyword(s):  
Case Report ◽  
Bone Tissue ◽  
Dental Implant ◽  
Bone Biopsy ◽  
Histological Evaluation ◽  
Autogenous Bone ◽  
High Survival ◽  
Ridge Augmentation ◽  
Implant Placement ◽  
Atrophic Maxilla

The guided bone regeneration (GBR) technique has been used to achieve optimal bone volume augmentation and allow dental implant placement in atrophic maxilla and mandible, with predictable results and high survival rates. The use of bone substitutes has reduced the necessity of autogenous bone grafts, reducing the morbidity at the donor areas and thus improving the patients’ satisfaction and comfort. This clinical case report shows a clinical and histological evaluation of the bone tissue behavior, in a case that required the horizontal augmentation of the alveolar ridge, with the use of xenograft biomaterial and further dental implant placement. After six months of healing time, six implants were placed, and a bone biopsy was done. The histological analysis depicted some fragments of the xenograft bone graft, integrated with the new-formed bone tissue.

scholarly journals Autogenous Chin Block Grafts in the Aesthetic Zone: A 20-Year Follow-Up Case Report

2020 ◽  
Vol 2020 ◽  
pp. 1-6 ◽  
Author(s):  
Carlo Maiorana ◽  
Susanna Ferrario ◽  
Pier Paolo Poli ◽  
Mattia Manfredini
Keyword(s):  
Autogenous Bone ◽  
Bone Augmentation ◽  
Reliable Technique ◽  
Implant Placement ◽  
Osseointegrated Implants ◽  
Clinical And Radiological Outcome ◽  
The Aesthetic ◽  
Autogenous Bone Grafts

The successful use of osseointegrated implants in the treatment of partial or complete edentulism requires a sufficient bone support. Whenever rehabilitation in atrophic edentulous areas is needed, bone augmentation procedures are recommended. The aim is to provide adequate amount of supporting bone to achieve a prosthetically guided implant placement. This in turn leads to functional and aesthetic improvements that can be maintained on the long term. Bone grafting of the atrophic site can be performed either prior to implant placement or at the time of implantation. Irrespective of the timing, bone augmentation by means of autogenous bone grafts is a reliable technique, as confirmed by several studies. On the other hand, long-term evidence on the use of autogenous chin block grafts in preprosthetic implant surgery is still scarce. Thus, the purpose of the present case is to report the 20-year clinical and radiological outcome of autogenous chin block grafts used to augment a bilateral defect due to agenesis of the upper lateral incisors for implant placement purposes.

A Modified Edentulous Ridge Expansion Technique for Immediate Placement of Implants: A Case Report

2011 ◽  
Vol 37 (sp1) ◽  
pp. 114-119 ◽  
Author(s):  
Mario Santagata ◽  
Luigi Guariniello ◽  
Gianpaolo Tartaro
Keyword(s):  
Case Report ◽  
Connective Tissue ◽  
Postoperative Recovery ◽  
Healing Time ◽  
Autogenous Bone ◽  
Connective Tissue Graft ◽  
Tissue Graft ◽  
Implant Placement ◽  
Immediate Placement ◽  
Expansion Technique

This case report is focused on the possibility of treating atrophic ridge with a reduced number of surgical procedures and a reduced healing time. A 43-year-old female patient affected by edentulism associated with horizontal resorption of the ridge was treated by means of a sagittal osteotomy and expansion of the ridge with the new modified edentulous ridge expansion (MERE) technique to obtain a wider bony base for ideal implant placement. In the same procedure 2 implants were placed and connective tissue graft, covering the bony wound, was placed to achieve keratinized mucosa. The implants were placed immediately after the split crest of the ridge and covered by a connective tissue graft. Postoperative recovery was uneventful. Within the limits of this case report, the MERE technique appeared to be reliable and simple, and it reduced morbidity compared with other techniques such as autogenous bone grafts and guided bone regeneration.

scholarly journals Outcomes of Evisceration or Enucleation by Resident Trainees in Patients with Endophthalmitis or Panophthalmitis

2021 ◽  
Author(s):  
Wannaporn Tianthong ◽  
Orapan Aryasit
Keyword(s):  
Multivariate Analysis ◽  
Wound Dehiscence ◽  
Antimicrobial Drugs ◽  
Implant Placement ◽  
Implant Exposure ◽  
Prosthesis Fitting ◽  
Common Causes ◽  
Lateral Tarsal Strip ◽  
Clinical Records ◽  
Primary Implantation

Abstract Background To evaluate the outcomes of evisceration or enucleation with primary implantation performed by ophthalmology resident trainees in patients with endophthalmitis or panophthalmitis. Methods In this retrospective analysis, the clinical records of all patients diagnosed with endophthalmitis or panophthalmitis who underwent enucleation or evisceration with primary implantation over a 13-year period were reviewed. The predictive factors related to implant exposure or extrusion were identified using multivariate analysis. Results Sixty-six patients, with a median age of 46.8 years, were enrolled. Thirty-six (55%) out of 66 patients were diagnosed with panophthalmitis. The most common causes of endophthalmitis or panophthalmitis were trauma (13 patients) and corneal ulcer perforation (10 patients). Enucleation was performed in 53 patients (80%). Four patients (6%) had implant exposure, and 4 patients (6%) had implant extrusion. Multivariate analysis demonstrated that Pseudomonas aeruginosa infection (P = 0.021, adjusted odd ratio [aOR] 33.75) and not receiving intravitreal antimicrobial drugs before the eye removal procedure (P = 0.02, aOR = 30.11) were associated with implant exposure or extrusion. Patients with panophthalmitis who underwent evisceration had a higher rate of implant exposure or extrusion than those who underwent enucleation (P = 0.031, aOR 38.38). Other complications included socket discharge in 14 patients, lower lid laxity in 5 patients who underwent the lateral tarsal strip procedure, and wound dehiscence in 3 patients. At the last visit, 65 patients had successful prosthesis fitting. Conclusion This study suggests that evisceration or enucleation with primary implant placement in patients with recalcitrant endophthalmitis or panophthalmitis can be performed by resident trainees with acceptable surgical outcomes and a low rate of serious complications.

scholarly journals Design Techniques to Optimize the Scaffold Performance: Freeze-dried Bone Custom-made Allografts for Maxillary Alveolar Horizontal Ridge Augmentation

2020 ◽  
Author(s):  
Felice Roberto Grassi ◽  
Roberta Grassi ◽  
Leonardo Vivarelli ◽  
Dante Dallari ◽  
Marco Govoni ◽  
...  
Keyword(s):  
Clinical Success ◽  
Secondary Site ◽  
Autogenous Bone ◽  
Ridge Augmentation ◽  
Implant Placement ◽  
Freeze Dried ◽  
Custom Made ◽  
Atrophic Maxilla ◽  
Bone Level ◽  
Density Analysis

Background: The aim of the present investigation was to evaluate the clinical success of horizontal ridge augmentation in the severely atrophic maxilla (Cawood and Howell class IV) using freeze-dried custom made bone harvested from cadaver donors tibial hemiplateau and to analyze the marginal bone level gain prior dental implants placement at 9 months after bone grafting and before prosthetic rehabilitation. Methods: A 52-year-old woman received custom made bone grafts. Patient underwent CT scans 2 weeks prior and 9 months after surgery for graft volume and density analysis. Results: The clinical and radiographic bone observations showed a very low rate of resorption after bone graft and implant placement. Conclusions: The custom-made allograft material was a highly effective modality for restoring the alveolar horizontal ridge, resulting in this way to reduce the need to obtain autogenous bone from a secondary site with predictable procedure. Further studies are needed to investigate its behavior at longer time points.

scholarly journals Vertical-guided bone regeneration with a titanium-reinforced d-PTFE membrane utilizing a novel split-thickness flap design: a prospective case series

2020 ◽  
Author(s):  
Peter Windisch ◽  
Kristof Orban ◽  
Giovanni E. Salvi ◽  
Anton Sculean ◽  
Balint Molnar
Keyword(s):  
Bone Regeneration ◽  
Case Series ◽  
Radiographic Examination ◽  
Radiographic Evaluation ◽  
Autogenous Bone ◽  
Hard Tissue ◽  
Ridge Augmentation ◽  
Implant Placement ◽  
Simultaneous Group ◽  
Flap Design

Abstract Objectives To evaluate the feasibility of a newly proposed minimally invasive split-thickness flap design without vertical-releasing incisions for vertical bone regeneration performed in either a simultaneous or staged approach and to analyze the prevalence of adverse events during postoperative healing. Materials and methods Following preparation of a split-thickness flap and bilaminar elevation of the mucosa and underlying periosteum, the alveolar bone was exposed over the defects, vertical GBR was performed by means of a titanium-reinforced high-density polytetrafluoroethylene membrane combined with particulated autogenous bone (AP) and bovine-derived xenograft (BDX) in 1:1 ratio. At 9 months after reconstructive surgery, vertical and horizontal hard tissue gain was evaluated based on clinical and radiographic examination. Results Twenty-four vertical alveolar ridge defects in 19 patients were treated with vertical GBR. In case of 6 surgical sites, implant placement was performed at the time of the GBR (simultaneous group); in the remaining 18 surgical, sites implant placement was performed 9 months after the ridge augmentation (staged group). After uneventful healing in 23 cases, hard tissue fill was detected in each site. Direct clinical measurements confirmed vertical and horizontal hard tissue gain averaging 3.2 ± 1.9 mm and 6.5 ± 0.5 mm respectively, in the simultaneous group and 4.5 ± 2.2 mm and 8.7 ± 2.3 mm respectively, in the staged group. Additional radiographic evaluation based on CBCT data sets in the staged group revealed mean vertical and horizontal hard tissue fill of 4.2 ± 2.0 mm and 8.5 ± 2.4 mm. Radiographic volume gain was 1.1 ± 0.4 cm3. Conclusion Vertical GBR consisting of a split-thickness flap and using titanium-reinforced non-resorbable membrane in conjunction with a 1:1 mixture of AP+BDX may lead to a predictable vertical and horizontal hard tissue reconstruction. Clinical relevance The used split-thickness flap design may represent a valuable approach to increase the success rate of vertical GBR, resulting in predicable hard tissue regeneration, and favorable wound healing with low rate of membrane exposure.

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