[Show abstract][Hide abstract] ABSTRACT: Aim of the study. Reconstruction of segmental defects and the atrophic maxilla and mandible is performed using various techniques. Bone sub- stitutes have received a wealth of reports in the literature demonstrating a long-term success when used in alveolar bone augmentation proce- dures.
Materials and methods. We reviewed articles comparing TiMesh GBR technique with different percentage of bone: autogenous bone alone (AB); anorganic bovine bone alone (ABB); mixture of AB and ABB, in different relation, 50:50 or 70:30. From an initial pool of 122, we selected 14 studies. ANOVA followed by Tukey HSD test was used for statistical analysis.
Results. We present a table analysing fundamental parameters to value a successful GBR therapy. Autogenous bone remains the gold standard in GBR technique with TiMesh; however, the combi- nation between AB/ABB in relation 50:50 and 70:30 allows reducing surgical cost exploiting pro- perties of eterologous bone.
Conclusion. The use of autologous bone is asso- ciated with a height and width gain of bone, which are greater compared to other techniques, with a lower exposure of the mesh and a lower bone resorption. The use of heterologous graft leads to a lower bone earn and to percentage of resorption greater than autologous graft but does not differ from the gain and resorption of the bone of AB/ABB in percentage 50:50 and 70:30.
[Show abstract][Hide abstract] ABSTRACT: When multiple implants are to be placed, and a pneumatized sinus exists, the published reports suggest that the lateral window approach (LWA) is favored for sinus floor augmentation. Simultaneously, if a transcrestal sinus floor augmentation has been carried out (bone-added osteotome sinus floor elevation), the reports are restricted to single implant placement at any site. The aim of this study was to evaluate the clinical and radiographic outcomes at adjacent transcrestal sinus augmentation grafts using deproteinized bovine bone material, with the immediate placement of submerged adjacent implants, and so determining the fate of the graft material. The progressive loss of the inter-implant graft is reported for the LWA Technique. However, this novel coalescence method has shown a progressive increase in the inter-implant graft region, thus inferring a positive bony regeneration and remodelling at the region. These results indicate that the carrying out of a large scale study is warranted to confirm the efficacy of this technique.
European journal of dentistry. 10/2014; 8(4):553-8.
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