This study investigated a minimally invasive surgical procedure for alveolar ridge augmentation that combined recombinant human platelet-derived growth factor BB (rhPDGF-BB) and three different matrices. The minimally invasive tunneling ridge augmentation procedure was applied to 12 patients randomized into three groups: rhPDGF-BB (0.3 mg/mL) was combined with freeze-dried bone allograft (FDBA;...

BACKGROUND studies in humans and animals have shown that following tooth removal (loss), the alveolar ridge becomes markedly reduced. Attempts made to counteract such ridge diminution by installing implants in the fresh extraction sockets were not successful, while socket grafting with anorganic bovine bone mineral prevented ridge contraction. AIM to examine whether grafting of the alveolar s...

Besides alveolar bone quality, the drilling protocol applied in conjunction with design of an implant are major determinants primary stability. Surgical trauma and compression resulting from insertion may constitute one cause for marginal resorption. Inserting two current bone-level designs (Astra; Straumann; n = 5) bovine ribs, stability, strain development on buccal plate histologic signs dam...

Detailed knowledge of the dynamic viscoelastic properties of bone is required to understand the mechanisms of macroscopic bone fracture in humans, and other terrestrial mammals, during impact loading events (e.g. falls, vehicle accidents, etc.). While the dynamic response of bone has been studied for several decades, high-quality data remain limited, and it is only within the last decade that t...

Bone matrix is a repository of growth and differentiation factors as demonstrated by the induction of local cartilage and bone formation in rats. The bone inductive activity, termed osteogenin, can be dissociatively extracted, and it was isolated by heparin affinity, hydroxyapatite and molecular sieve chromatography. Osteogenin has been purified to homogeneity from bovine bone matrix and the se...

Introduction: Periodontitis is a chronic, multifactorial, inflammatory disease that leads to gradual loss of bone and periodontal attachment. Thus, surgery required according severity diseases. The goal reconstructive regenerate soft hard tissues destroyed during disease. Aim: To compare the effectiveness bioresorbable collagen mem...