Fresh Frozen versus Autogenous Iliac Bone for the Rehabilitation of the Extremely Atrophic Maxilla with Onlay Grafts and Endosseous Implants: Preliminary Results of a Prospective Comparative Study

Chiapasco, Matteo; Martino, Giuseppe Di; Anello, T.; Zaniboni, Marco; Romeo, Eugenio

doi:10.1111/cid.12191

Cited by 27 publications

(33 citation statements)

References 41 publications

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“…Chiapasco and colleagues recently demonstrated inferior peri‐implant bone stability and lower implant survival in sites received allogenous than autogenous bone block, contrary to the present results. The differences might be from caused by the different indication for the augmentation (ie, fully vs partially edentulous ridge), as the periodontal attachment on the adjacent teeth could provide volumetric stability and a source of healing.…”

Section: Discussioncontrasting

confidence: 99%

Dimensional alterations following vertical ridge augmentation using collagen membrane and three types of bone grafting materials: A retrospective observational study

Park

Choi

Cho

et al. 2017

Clin Implant Dent Rel Res

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Section: Discussioncontrasting

confidence: 99%

Dimensional alterations following vertical ridge augmentation using collagen membrane and three types of bone grafting materials: A retrospective observational study

Park

Choi

Cho

et al. 2017

Clin Implant Dent Rel Res

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“…Techniques such as guided bone regeneration and reconstruction with autogenous bone blocks are supported by a significant bulk of literature, as demonstrated by some systematic reviews . On the other hand, the use of nonautogenous bone blocks, including allografts and xenografts, is supported by less, and often contradictory, literature with some publications reporting positive results and others reporting questionable results ().…”

Section: Classification Of Horizontal Defects According To a Prosthetmentioning

confidence: 99%

Horizontal bone‐augmentation procedures in implant dentistry: prosthetically guided regeneration

Chiapasco¹,

Casentini²

2018

Periodontology 2000

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162

156

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The rehabilitation of partially or totally edentulous patients with implant-supported prostheses has become routine, with excellent long-term outcome. A proper implant position is mandatory to achieve good functional and esthetic outcome and may require an adequate amount of alveolar bone and surrounding soft tissue. When this is lacking because of atrophy, sequelae of periodontal disease, traumas or congenital malformations, increased bone volume and/or keratinized mucosa can be obtained by guided bone regeneration, bone-grafting techniques and alveolar bone expansion. This article presents an evidence-based, prosthetically driven approach for the treatment of edentulous ridges with horizontal defects. The classification of bony defects, the main augmentation techniques, the selection criteria among different surgical procedures for different types of bony defects, and the advantages, disadvantages and limitations of each technique, are described in detail.

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“…Nevertheless, controversial results have been reported in the literature. While some authors reported encouraging results, other studies described questionable data regarding to its resorption and long‐term sequestration of the graft …”

Section: Introductionmentioning

confidence: 99%

Clinical and radiographic outcomes of allogeneic block grafts for maxillary lateral ridge augmentation: A randomized clinical trial

Tresguerres

Cortes

Vallejo

et al. 2019

Clin Implant Dent Rel Res

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Background A main drawback of bone block graft surgery is the resorption occurring in early stages of healing. To our knowledge, there are no studies comparing outcomes of freeze‐dried bone allograft (FDBA) blocks with different architecture. Purpose The aim of this work was to investigate different factors that can affect graft resorption and to compare the resorption rates of two different types of allogeneic blocks, corticocancellous and cancellous. Materials and Methods A randomized clinical trial was designed. Twenty‐eight patients referred for onlay bone augmentation prior to implant placement were included in the study. Preoperative computerized tomography (CT) was taken for all patients. Patients received FDBA blocks of either cancellous or corticocancellous bone obtained from the iliac crest. After a 4‐month follow‐up, postoperative CT was taken. Then, another surgery was performed, with the purpose to place dental implants. The aforementioned groups were compared for bone resorption and implant outcome using analysis of covariance (ANCOVA) and repeated ANOVA measures, respectively. Demographic data, trabecular bone density, and graft sites were also analyzed. Results A total of 93 implants were placed in the augmented bone sites over 28 patients. A 100% survival rate was achieved during a mean follow‐up period of 24 months in both groups. Higher bone resorption rate was found with cancellous bone grafts (29.2% ± 2.6) compared with corticocancellous grafts (19.3% ± 2.3). Moreover, higher resorption rates in patients with lower bone density (<185 Hounsfield Units) (31.7% ± 3.1) and smokers (26.39% ± 2.3) were observed when compared with patients with higher bone density (>185 Hounsfield Units) (16.8% ± 2.1) and nonsmokers (22.1% ± 2.3), respectively. Conclusion Within the limitations of this study, these findings indicate that both corticocancellous and cancellous FDBA grafts constitute a clinical acceptable alternative for bone reconstruction, although cancellous grafts present higher resorption rates. Moreover, host factors such as patient's low bone density and smoking habits may also increase graft resorption rates.

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Fresh Frozen versus Autogenous Iliac Bone for the Rehabilitation of the Extremely Atrophic Maxilla with Onlay Grafts and Endosseous Implants: Preliminary Results of a Prospective Comparative Study

Abstract: Results of this study seem to demonstrate that FFB does not represent a reliable alternative to AB blocks because of the higher rate of bone exposure and partial loss of the grafts, the lower implant survival, and the higher peri-implant bone resorption in FFB patients.

Cited by 27 publications

References 41 publications

Dimensional alterations following vertical ridge augmentation using collagen membrane and three types of bone grafting materials: A retrospective observational study

Dimensional alterations following vertical ridge augmentation using collagen membrane and three types of bone grafting materials: A retrospective observational study

Horizontal bone‐augmentation procedures in implant dentistry: prosthetically guided regeneration

Clinical and radiographic outcomes of allogeneic block grafts for maxillary lateral ridge augmentation: A randomized clinical trial

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