View clinical trials related to Alveolar Bone Resorption.
Filter by:split-mouth RCT, 25 months follow up. GBR protocol with LPRF as grafting material in the test group and autogenous bone with DBBM as grafting material in the control group.
The goal of this clinical trial is to evaluate the safety of placing TiO2 scaffolds in alveolar ridge and to evaluate if the scaffold material contributes to maintain the anatomy and the volume of the alveolar process after tooth extraction.
two groups of inserted implants: trans-gingival and under-bone level; difference in the marginal bone loss at six months from placement between the two groups of implant positioned in the posterior atrophic maxilla
The aim of this randomized prospective clinical trial was to evaluate the outcome of bone block harvesting from the retromolar region using the Conventional and Piezosurgery Method. The study was planned on 19 patients (13F,6M) on 31 donor sites. In patients with bilateral bone harvesting, the donor site and the surgical method to be used were determined by the randomization protocol, while in patients with bone harvesting from a single site, the donor site was determined by considering parameters such as proximity to the operation site and distance to the inferior alveolar nerve. Clinical parameters such as operation time, pain, swelling, trismus, nerve damage were evaluated.
The study was conducted on 20 immediate implant placement sites in the anterior maxillary region. In the study group, 10 implants were inserted using socket shield technique, while in control group, 10 implants were inserted using conventional immediate placement technique. All patients received immediate and 6 months post-operative CBCT to assess horizontal bone loss, vertical bone loss, and measurement of bone density. Implant stability quotients (ISQs) was measured immediately, 1st, 3rd and 6 months post-operatively.
this study aims to evaluate horizontal bone augmentation achieved at the anterior maxilla using computer-guided cortical shell bone technique and accuracy of fixation of the bone shell away from the atrophic ridge by a calculated distance which is always a challenging step for inexperienced surgeons to fix a cortical shell at the ideal position in the conventional protocol it was never guided to be precisely fixed at the proper position and angulation the problem is if it fixed with insufficient distance with proposed volume loss leads to totally insufficient volume gain for future implant placement also to evaluate the efficacy of the CAD/CAM surgical guide during chin harvesting procedures in reducing the risk of anatomical structure damage and patient morbidity with more accuracy compared with the standard technique. this trial versus free hand conventional cortical shell bone technique both harvested from symphysis area (chin).
According to previous scientific evidence lining on biological concept of bone regeneration into the maxillary sinus, an observational study was set up to record possible (hypothesized) difference in bone formation between different width of the maxillary sinus itself. Therefore, a multicenter study was set up that foresaw a surgical intervention of sinus lift with lateral approach, the 6 months healing phase, the implant insertion in two sites with the implant site preparation made by a trephine bur to retrieve a bone specimen for histomorphometric examination without any additive invasively for the patient.
The study evaluated the effect of local application of simvastatin around immediate implant on the amount of gap fill, ridge dimensional alterations and bone density in humans.
Hard and soft tissue deficiencies of an alveolar ridge arise as sequelae of tooth extraction when socket preservation is not applied. In addition, extraction of posterior maxillary teeth causes pneumatization of the maxillary sinus in relation to other fixed landmarks such as the teeth. These anatomic sinus limitations and alveolar bone deficiencies are the main challenges for dental implant placement. Different bone substitutes have been used to augment bone in pneumatized maxillary sinuses. Scaffolding materials such as xenografts or synthetics substitutes have been proven to be a viable alternative. Xenografts are obtained from nonhuman species and serve as a scaffold for the formation of new bone (osteoconduction). Histologic evaluation of maxillary sinuses grafted with xenografts revealed newly formed bone to be mostly woven bone with some remodeling to lamellar bone. These histologic findings reaffirm the osteoconductive ability of xenografts when used as the sole grafting material in maxillary sinus augmentation. Xenografts appear to be an effective method for maxillary sinus grafting and demonstrate limited resorption over time. Sinuses augmented with synthetic bone substitute (SBS) also appear to successfully integrate based on recent histomorphometric studies. Vascularization and trabecular bone formation in sinuses grafted with SBS has been previously demonstrated. One type of SBS includes porous granules of bioactive and resorbable silica-calcium phosphate nanocomposite (ShefaBone). ShefaBone grafts offer a novel alternative that can potentially unite the 3 salient bone-forming properties (osteoinduction, osteoconduction, and osteogenesis). ShefaBone has unique properties including: 1) bioactivity 2) bioresorbablility, and 3) allowing for the uptake of calcium ions from the physiological solution and releasing phosphate and silicate ions which aid in bone formation. A material with such properties will substitute bone in a more controlled and effective combination that can be obtained in many clinical situations, without the disadvantages found with autograft. ShefaBone has demonstrated successful regenerative properties for bony defects. To our knowledge, there is no reported clinical studies on the use of SCPC material to graft a pneumatized maxillary sinus. This aim of this current study is to compare SCPC to commonly used xenograft material in an augmented maxillary sinus.
The clinical cases in the present study described the khoury shell technique using an allograft plate and autogenous chips, for horizontal reconstruction of the anterior alveolar ridge in the esthetic zone. Without need to use autogenous bone graft techniques that are characterized by more aggressive surgery.