View clinical trials related to Bone Regeneration.
Filter by:This investigation is a pre-market, prospective, multi-center, randomized, single blinded, parallel controlled clinical investigation performed in at least 5 clinical centers for confirmatory purposes of the use of WHA as intended in the filling of extraction sockets to enhance preservation of the alveolar socket.
NDI represent an advisable treatment option when the mesio-distal space is compromised. In a recent retrospective study with a follow-up of 8 years in which they wanted to evaluate the long-term survival, complications, peri-implant conditions, marginal bone loss, and patient satisfaction of fixed dental prostheses supported by NDI in the posterior area. They observe a survival rate of 97% and absence of prosthetic complications after the study period time. More recently, Souza et al. performed a prospective randomized split mouth study with 3 years follow-up with the aim of comparing marginal bone level, implant survival and success rates and prosthesis success rates of NDI and SDI placed in the posterior area of the mandible to support single prosthesis. They observed an implant survival rate of 100% for both groups at 1 and 3 years. The prosthesis success rate at 1 and 3 years was of 95.4% and 100%, respectively. NDI present a high survival rate on the evaluated studies. Therefore, the aim of the first study is to compare the patient related outcomes, implants and prostheses success and survival rates of pure titanium NDI versus SDI with simultaneous bone regeneration in narrow alveolar ridges at posterior areas of the maxilla and the mandible.
The aim of this triple blind randomized controlled trial will be to analyze the effect of a dose of teriparatide combined with a xenograft on bone augmentation of the maxillary sinus, to observe the microarchitecture of the newly formed bone and the primary and late stability of implants placed on these grafts. The sample is composed of 42 participants who have a clinical indication for maxillary sinus floor augmentation with bone grafting due to residual bone height less than or equal to 5mm for the installation of dental implants. Each side will be grafted with Bio-Oss® or Bio-Oss® combined with 1 dose (20 µg) of teriparatide (Forteo®). Three months after grafting, at the time of placement of dental implants, bone biopsies will be obtained using a short 2mm trephine bur. These bone cores will be submitted to histological and histomorphometric analysis. The stability of the implants will be measured, at the time of their installation, through the insertion torque, and through the use of resonance frequency equipment (Ostell®) in three moments: immediately and at 3 and 6 months after the installation of the dental implants.
The aim of this study is to evaluate the efficacy of ursodeoxycholic acid as local drug delivery agent in intra- bony defect to achieve bone regeneration.
Statins (HMG-CoA) are widely used in treating patients with hypercholesterolemia. They have also been studied because of their anabolic effects on bone tissue. Statins increase the expression of Bone Morphogenetic Proteins-2 (BMP-2) and Vascular Endothelial Growth Factor (VEGF), which are of important scientific interest in bone regeneration therapy. However, they are expensive and have a short half-life. Therefore, a molecule promoting the endogenous production of BMP-2 and VEGF would be valuable for the field of bone tissue engineering. This study aims to evaluate dimensional changes, level of soft tissue healing, pain/discomfort, and newly formed tissues in post-extraction sockets filling with Simvastatin (SIM) gel covered with polypropylene membranes. Thirty post-extraction sockets of posterior teeth will be randomized allocated in two groups: 1) extractions and socket filling with 1.2% SIM gel and membrane and 2) extraction and socket filling with placebo gel and membrane. The evaluation will be done through clinical analyzes, histomorphometry and micro-computed tomographic images, considering the dimensional changes, the quantity and the quality of tissue formation after extractions. Measurements will be taken before extraction (T1) and 90 days after the extraction (T2). In addition, the perception of pain will be analyzed. The hypothesis is that SIM associated with polypropylene membrane can enhance bone formation in post-extraction sockets compared with the control group.