Active clinical trials for "Bone Resorption"

A study designed as a randomized controlled trial of parallel group design will be conducted at the Dental clinic of the University of Valencia to evaluate the influence of 2.5 mm high abutments with different shapes (commercially available high abutments vs high abutments with modified shape to imitate short abutments) on peri-implant bone loss around bone level implants with platform switching in partially edentulous patients that require a fixed rehabilitation supported by two implants in the posterior mandible or maxilla and in fixed rehabilitation supported by one implant in the anterior mandible or maxilla.

The aim of the study is to assess the relative antiresorptive properties of 2 osteoporosis medications when combined with teriparatide.

The utilization of SLActive implants which allow more rapid osseointgeration with 3 to 4 weeks. will be placed in thin buccal bone as immediate implants to determine the resorption compared to thick buccal bone

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.

The aim of the project is to study the influence of biostimulate crops on a healthy population in order to assess influence on hematological parameters and specific metabolism (glucose, lipid, iron, bone) and gut and lipid hormones. Secondary outcome will be to find out micronutrient presence in urine and serum. The use of biostimulation in modern agriculture has rapidly expanded in recent years, owing to their beneficial effects on crop yield and product quality, which have come under the scope of intensive research.

This study evaluates the effect of Denosumab in decreasing the periprosthetic bone resorption after Total Knee Arthroplasty compared to placebo in 60 patients (30 placebo and 30 Denosumab) within a year after surgery.

Lead accumulates in bone. During pregnancy, physiologic changes occur prompting bone resorption in order to provide calcium to the growing fetal skeleton also release the lead stored in bone into a pregnant woman's circulation. We have previously demonstrated that lead stores mobilized into the circulation of pregnant women pose a major threat to fetal development. This is particularly unfortunate since bone lead stores, once accumulated, persist for decades, thereby jeopardizing the pregnancies of women even if their current lead exposures have subsided. What then can be done for the many thousands of women who have had lead exposure while growing up and who want to have healthy children? To address this question, in 2000, this project embarked on a randomized intervention trial to test whether a bedtime nutritional supplement of 1,000 mg of calcium can significantly reduce fetal lead exposure and toxicity by suppressing bone resorption in the pregnant mother.

This study is designed to study the dose response effect of continuous Soluble Corn Fiber (SCF) intake over a 50 day period on bone resorption in healthy post menopausal women using the 41Calcium methodology. To further understand the dose response effect of SCF bone biomarkers will be studied. Our hypothesis is that soluble corn fiber will reduce bone resorption in a dose dependent manner in comparison to placebo when estimated by urinary 41Calcium excretion as well as bone biomarkers of resorption.

Bone loss is not only a well-documented effect of spaceflight on astronauts, but also a condition that affects millions of men and women on Earth each year. Many countermeasures to bone loss have been proposed, and many have been evaluated to some degree. To date, those showing potential have focused on either exercise or pharmacological interventions, but none have targeted dietary intake alone as a factor to predict or minimize bone loss during spaceflight. The investigators proposed to document how the ratio of acid precursors to base precursors in the diet is related to directional changes in markers of bone resorption and formation during flight and recovery from flight. There is a high likelihood for success in predicting the extent of bone loss from dietary intake patterns of astronauts during spaceflight, given that this concept is strongly anchored in data obtained from ground-based experiments in our laboratory and others. The notion of manipulating diet to minimize bone loss could also have significant social and economic impacts for NASA and for the general public - especially given the increasing trends for diets that are high in animal protein and low in fruits and vegetables. The results of the proposed experiments will lead to development of a dietary countermeasure for bone loss consisting of a balanced diet with no associated risks for side effects that might be present with pharmaceuticals or supplements, no requirement for payload mass, and no additional crew time necessary during flight.

The extracorporeal shock wave therapy (ESWT) has shown good results in bones and soft tissues of the lower and upper extremities such as: pseudoarthrosis, promoting bone formation of delayed or nonunion fractures, tendinopathies, fascitis and even in vascular pathologies. The investigators main hypothesis is that the application of extracorporeal shock wave therapy (ESWT) in the residual alveolar bone after an extraction of an anterior upper maxillary tooth should prevent further residual alveolar bone resorption and will enhance vital bone formation. The investigators null hypothesis is that applying extracorporeal shock wave therapy (ESWT) in the residual alveolar bone after an extraction of an anterior upper maxillary tooth has no influence in the alveolar bone remodeling process. Therefore, the investigators main objective is to evaluate the efficacy of the ESWT in the prevention of alveolar bone resorption after an extraction with a volumetric exam through computer tomographies (CT) analysis. The investigators secondary objective is to determine the effect of ESWT in the internal bone healing process of these postextraction alveolar sockets, measuring the bone density in the CT (Hounsfield units) and the histomorphometric exam. Methodology: randomized and open clinical trial with 20 patients (10 per group: with or without ESWT treatment) that comply the inclusion and exclusion criteria. In the first appointment the tooth extraction will be performed, while in the second visit (two weeks later), CT scan will be made to all patients and ESWT will be applied in the experimental group. Finally, in the third visit (ten weeks later), a new CT scan will be done and an implant will be placed in the zone taking previously a bone sample with a trephine bur. The expected results are an improvement in the quantity and quality of the alveolar bone before the implant placement.