View clinical trials related to Bone Loss.
Filter by:Subperiosteal implants were first introduced in 1940 and then used worldwide for the treatment of edentulous maxilla or mandible with advanced bone atrophy.
Background : Type 1 diabetes (T1D) is associated with an increased risk of fractures. The mechanisms accounting for this bone fragility are not yet fully understood. As T1D is often diagnosed in childhood or early adulthood, the lower bone mineral density (BMD) and deteriorated bone microarchitecture observed in T1D may reflect changes in the bone that occurred before or at the time of peak bone mass achievement. There is a lack of high-quality prospective studies to determine whether adults with T1D continue to lose BMD or deteriorate bone quality compared with controls. Moreover, while chronic hyperglycemia is a risk factor for fracture in T1D, it is unknown if better glycemic control affects bone outcomes. This prospective multicenter cohort study aims: (1) To compare the changes in the following outcomes over 4 years in adults with T1D and controls without diabetes of similar age, sex and body-mass index distribution: BMD by dual-energy X-ray absorptiometry (DXA) at the femoral neck, hip, spine, and radius, trabecular bone score (TBS) by DXA, and serum biochemical markers of bone turnover (BTMs); (2) To evaluate whether long-term glycemic control or the presence of a microvascular complication are independent predictors of the changes in BMD and TBS in people with T1D.
The clinical study aims to assess the osteogenic effects of Galibone+ in bone regeneration post-extraction of impacted mandibular third molars.
The Cohort on Plant-based Diets (COPLANT) study is a multi-centre cohort study that starts baseline recruitment from 2024 to 2027 with approximately 6,000 participants in Germany and Austria. The COPLANT study focuses on vegan (no animal products), vegetarian (no meat and fish, but dairy products and eggs), pescetarian (no meat, but fish) and omnivorous (mixed diet including all possible animal products) diets. The aim of the COPLANT study is to gain new insights on health benefits and risks as well as social, ecological and economic effects of different plant-based diets in comparison to a mixed diet. In addition to a detailed dietary survey using an app adapted to the needs of this study, the baseline examination includes measurements of body composition, bone health, cardiovascular risk factors, diabetes risk, contaminants and lifestyle. For the basic laboratory program, fasting blood, 24-hour urine collection and a stool sample are taken from all study participants. Furthermore, specific aspects of dietary behavior, physical activity and other lifestyle factors are collected via questionnaires. Follow-up studies are planned at intervals of 5, 10 and 20 years after the baseline visit.
This study evaluated the clinical and biochemical aspects of flap design in dental implant applications regarding implantation success and patient comfort. In this split-mouth randomized controlled clinical trial, a vertical releasing incision was made at the distal end of the crestal incision on the test side, and the control side received a crestal incision alone. Sixty-eight implants were placed in 17 patients. Peri-implant groove fluid was collected on postsurgical days 3, 7, 30, and 90; OPG and RANKL levels were assessed to determine bone formation and resorption around the implants. Cortisol levels were assessed in peri-implant groove fluid at postsurgical days 3, 7, and 14. Visual analog scale (VAS), and swelling measurements were taken postoperatively. Panoramic and periapical X-rays were obtained immediately post-surgery and at 3 months. No significant marginal bone loss difference was observed between the test and control sides at 3 months. The RANKL/OPG ratio, cortisol levels, VAS scores, and swelling scores were higher in the test vs. control sides. Overall, while the use of a vertical incision has advantages, such as increasing the visual field of the surgeon and improving the ease of the operation, this approach should be used only when necessary, given the disadvantages of increased bone resorption mediators in the peri-implant tissue and reduced postoperative patient comfort.
Bone mineral density is an important measurement to detect osteoporosis. The goal of this clinical trial is to compare bone mineral density measurements in CT examinations and DXA scans. The main question it aims to answer is: - How good is the measurement of bone mineral density in the new photon-counting CT in comparison to DXA - How can we optimize the CT scan for bone mineral density Participants will undergo: - Clinically indicated CT scan on day of inclusion - Study related DXA scan on a separate appointment
The purpose of this study is to assess changes in peri-implant tissues and the effectiveness of a tissue-level surgical technique. This technique will be compared with a bone-level surgical technique. This is a post-marketing clinical investigation conducted in the Endodontics Department of the Dental Clinic at the University of Bologna. Patient recruitment and study conduction will follow the principles of the Declaration of Helsinki and adhere to major international guidelines (CONSORT). Implants will be placed using either a bone-level or tissue-level surgical technique, corresponding to implants positioned at the level of the gingival mucosa or submerged implants, respectively. Randomization (1:1 ratio) will be conducted before surgery to create two treatment groups. The experimental group (Tissue Level) (n=40) consists of implants that will be placed with the exposed neck (Tissue-level surgical technique). The control group (n=40) comprises implants placed at the bone level (Bone-level surgical technique). The surgeon will be aware of patient assignment during the implant insertion procedures. The surgical procedure to uncover the implant neck (control group) will be performed 3 months after implant placement. The experimental group (Tissue Level technique) will not require a surgical intervention. he following parameters will be assessed at 1, 6, 12, and 36 months after implant placement: Peri-implant parameters: Plaque score, Bleeding on Probing (BoP), and Papilla Index Radiographic parameters: Marginal Bone Level (MBL) Patient-Reported Outcome Measure (PROM): Post-operative pain (VAS) in the experimental group (non-submerged surgical technique) and the control group (submerged surgical technique).
The purpose of this study is to demonstrate the effect of bioceramic implants on the repair of human bone defects, and to explore the application of bioceramic materials in bone defects, bone implantation, and bone fusion. The surface microstructure of β-tricalcium phosphate bioceramic implants can be effectively controlled to guide the regeneration of bones, promote the restoration of bones, accelerate the speed of recovery, and improve bone quality, which is of great clinical and social significance.
purpose: The primary purpose of this retrospective radiographic study were conducted to compare between milled bar and round bar for mini implant retained overdentures (IODs) on peri-implant bone changes and posterior mandibular ridge resorption .Study Design: A convenience sample of 18 completely edentulous participants were selected for this retrospective study from patients originally available at the start of the trial . The null hypothesis was that there were no significant difference between milled in and round bar attachment retained implant supported overdentures in posterior ridge resorption and peri-implant bone changes.
the study aims to investigate the clinical influence of different implant locations; lateral incisor, canine, and first premolar areas; supporting 2-implant retained mandibular over-dentures with locator attachment on prosthesis retention and peri-implant health.