View clinical trials related to Calculi.
Filter by:The objective of the study is to evaluate the safety and efficacy of the home-use device ToothWave (Model H7001) for calculus reduction and the prevention of calculus accumulation.
To investigate the effectiveness of percutaneous nephrostomy catheter placement versus retrograde double J catheter placement in patients with symptoms of obstructive kidney disease (with either infection and/or pain and/or kidney function deterioration) caused by urolithiasis.
The purpose of this study is to collect real-world evidence on the performance of the SOLTIVE™ Premium SuperPulsed Laser System for laser lithotripsy in ureteroscopy, percutaneous nephrolithotomy (PCNL) and mini PCNL for kidney and ureteral stones.
To evaluate the effect of masturbation on the spontaneous expulsion of distal ureteral stones 5-10 mm in size.
The aim of this study was to identify some risk factors of failure of surgical management of common bile duct stones, in our center between 2007 and 2019.
This is a randomized controlled clinical study evaluating the use of next-generation sequencing (NGS) to improve antibiotic prescribing before ureteroscopy or percutaneous nephrolithotomy.
Periodontal disease is amongst the most prevalent oral diseases worldwide and in North America. According to the 2007/09 Canadian Health Measures Survey, 16% of Canadian adults and 24% of older adults, 60 to 79 years of age, were found to have moderate periodontal disease. Moreover, 11% of Canadian adults were found to have calculus scores in the highest range. On the other hand, recent reports on the prevalence of periodontitis in the US showed that 47.2% of adults aged 30 years and older have some form of periodontal disease and 70.1% of adults 65 years and older have periodontal disease. The estimates also showed that the expenditure for periodontal treatments in the US is about approximately $ 14.3 billion. Since dental calculus plays an important etiological role in initiation and progression of periodontal diseases. Investigation and investment on preventive technologies to prevent the periodontal disease are important for any health care system and its end-users. Furthermore, the removal and prevention of dental calculus using an effective toothpaste could reduce the need for professional periodontal interventions or the time of these treatments that in turn reduces their cost and other burdens on patients. The aim of this study is to assess the efficacy of D-Tart toothpaste in removing dental calculus compared to Crest® (Complete Whitening plus Scope, tartar control, Procter & Gamble, Cincinnati, OH), anti-tartar toothpaste with similar pH and texture to D- Tart toothpaste.
Obstructing urolithiasis can be life-threatening in the setting of urinary tract infection. The purpose of this study is to identify and validate risk factors and markers for the presence of infection and development of sepsis among patients with obstructing urolithiasis.
Within the CHU Brugmann hospital, a multidisciplinary Renal Lithiasis and Mineral Metabolism clinic has been inaugurated in 2017. During the first months of 2018, the activities of the clinic have been focalized on the pre-analytical and analytical aspects of metabolic work-up. 15 patients are followed on average per week. The clinic is recognized as one of the 24 core centers of the European Nephrolithiasis Network and it is the only clinic included in this network in Belgium. The actual practice of the clinic has been published in a survey regarding current practice patterns of stone centers across Europe. Following this publication, the members of the board of the European Nephrolithiasis Network have put as common effort to standardize the care of kidney stone formers and obtained endorsement to perform a second survey in each core center. The aim of this initiative is to share information from real patients in aggregate form. Each core center practice will be evaluated by the second survey by an analysis of the robustness of clinical, biological, urological and radiological data. The main aim of this project consists in the constitution of a clinical, biological, urological and radiological database of followed patients. This database could be shared in aggregate form by using a specialized coding system for the patients. The database will enable the investigators to: - describe the epidemiological and clinico-biological characteristics of the CHU Brugmann patient population - gather information about the kidney function outcome - analyze and classify identified prolithogenics factors - characterize related metabolic disorders (diabetes mellitus, metabolic syndrome, arterial hypertension, chronic kidney diseases, osteoporosis...) - identify the patients that could participate in the international trials on kidney stone disease - identify the patients that will need a specialized genetic testing. - evaluate the impact of the clinic activity and metabolic work-up on the rate of recurrence of kidney stones in the patient population. The obtained data will be compared with the global data from the European Nephrolithiasis Network.
The objective of the present study is to evaluate the surface texture of root after hand instrumentation with Gracey curette, After Five curette and Mini Five curette.Patients having chronic periodontitis and scheduled for extraction were randomized into four groups. Scaling and Root planing was performed by different curettes. Group 1 didn't under go any instrumentation. Group 2 was instrumented with Gracey curette, Group 3 with After Five curette and Group 4 with Mini Five curette. These hopeless teeth were then extracted atraumatically and the specimens were processed and analyzed under a Scanning Electron Microscope. "Roughness and Loss of Tooth substance index" and "Smear layer index" was evaluated using the Scanning Electron Microscope photographs.Means and frequencies were reported using SPSS Version-21.Cross Tabulation was made between the test groups (Control, Gracey Curette, After five and Mini Five) versus "Roughness and Loss of Tooth substance Index" and "Smear Layer Index". Chi square test was applied to see the grade distribution among groups. Frequencies were reported in percentages and means. P. value of 0.05 or less was considered as significant.