View clinical trials related to Prosthesis Failure.
Filter by:Implant supported superstructure is necessary for long term success and durability of the implant itself in terms of stresses distribution and fracture strength capability. Stresses falling on an implant are too much greater than those applied on a tooth structure with a periodontal ligament offering a degree of elasticity. The important mechanical and physical properties of materials used for the fabrication of dental prostheses include adequate flexural and tensile strength and modulus of elasticity, maximum fracture resistance, optimal bond strength and adequate polishability.
evaluate the clinical outcome of the implantation of a specific primary TKA model implanted with the aid of inertial sensors for the execution of bone cuts through the administration of questionnaires for the calculation of clinical-functional scores;
The purpose of this randomized controlled clinical study was to evaluate the locator and TITACH attachments used for retaining mandibular 2-implant overdentures regarding retention , bite force and implant marginal bone loss after overdenture insertion
Deep margin elevation (DME) is a non-invasive restorative technique to relocate the deep cervical margin to a supragingival position using resin composite. This retrospective multicenter practice-based study will assess the long-term clinical performance and periodontal health of teeth restored with CAD-CAM crowns with or without DME. Patients who will receive CAD-CAM lithium disilicate (LD) crowns with or without DME between 2013 and 2023 at multiple private practices will be included. When indicated, DME will be performed using resin-based restoration. Clinical assessment of the crowns and supporting periodontal structures will be performed following the modified United States Public Health Service (USPHS) criteria. Intra-oral photographs, periapical and bitewing radiographs will be taken for further assessment by three evaluators. Kaplan Meier survival analyses will be performed.
This clinical trial aims to compare the performance of CAD/CAM-milled and 3D-printed full-arch implant-supported provisional restorations in patients at the Advanced Implant Prosthetics Clinic of the Complutense University of Madrid, of both sexes, over 18 years of age, edentulous upper, lower or both, whose treatment plan is at least a fixed implant-supported rehabilitation of the complete arch. The main question it aims to answer is if there are differences in the mechanical behavior and optical properties of the materials used as provisional materials in full-arch restorations on implants fabricated by CAD/CAM technology through machining or 3D printing. Participants will: - Receive milled (control material: PMMA; Multilayer PMMA block, HUGE; Shandong Huge Dental Material Corporation) or printed (test material: 3D impression resin; VarseoSmile Temp, Bego Bremer Goldschägerei Wilh. Herbst GmbH & Co. KG, Bremen) and they will be in provisional phase for 3 months doing daily life. Researchers will compare PMMA (Multilayer PMMA block, HUGE; Shandong Huge Dental Material Corporation) and the printed-resin (3D impression resin; VarseoSmile Temp, Bego Bremer Goldschägerei Wilh. Herbst GmbH & Co. KG, Bremen) to see: - Mechanical behavior and the absence of complications, fracture of the structure, material jumping or wear, loosening, or detachment. - Optical properties, initial color, and degradation of the materials used
Transgender and gender diverse (TGD) individuals most often choose for phalloplasty as a means to create masculine external genitalia. The neophallus created in phalloplasty is usually insufficient for penetrative sexual intercourse due to the lack of erectile structures. Therefore, implantation of an internal erectile prosthesis or use of an external device or epithesis is required. Internal prostheses are the main method for attaining penile rigidity after phalloplasty, but they carry a high risk of complications. Previous research has shown that up to 22% of prostheses for cisgender men were explanted due to various reasons, including infection, erosion, and malfunction within 20 months. The lack of reliable and durable erectile devices leads to a large proportion of patients either choosing phalloplasty but never going for the placement of an erectile prosthesis or completely abandoning the idea of GGAS under the form of phalloplasty. Secondarily, TGD individuals may be concerned about complication rates and likely need for additional surgeries associated with penile implant surgery. Therefore, alternative options for transgender and gender non-conforming patients after phalloplasty are needed. These alternatives may be surgical or non-surgical. External penile epitheses or penile splints were originally designed for cisgender men with erectile dysfunction but have been used experimentally by post-phalloplasty transgender men. While there is no data on the usability and durability of penile epitheses in a TGD population, they may be a viable alternative to an internal penile prosthesis after phalloplasty. Penile lifters or splints, marketed as ElatorTM or ErektorTM, are commercially available and consist of two rigid rings connected by rigid metal rods. The biggest of two rings is placed around the base of the phallus, and the second ring is placed behind the coronal ridge. By connecting the rods to the ring at the base of the penis, tension and rigidity between the two rings is created, allowing the user to penetrate their partner and remove the device after intercourse. The current study aims to extend the knowledge on these external devices by comparing them to the implantation of an internal penile prosthesis in post-phalloplasty transgender patients.
This study titled "Prospective, Multicentre Study to Assess Performance of the MonoCer Acetabular Cup in Primary Total Hip Replacement" is a multi-centre prospective registry-nested cohort study, using AOANJRR's web-based data collection system integrated with Registry data collection, designed to assess the ten-year clinical outcome of the MonoCer Acetabular Cup in Primary Total Hip Replacement. The primary outcome measure is mortality and secondary measures are PROMs and complications.
The primary objective of the study is to evaluate the 10-year performance of the MPACT DM cup in the treatment of patients requiring total hip arthroplasty. The primary endpoint is the 10-year life span of the prosthesis according to the Kaplan Meier curve.
Sarcopenia and malnutrition are closely involved in frailty. To prevent them, it is essential to assess oral function. "Oral fragility" manifests with specific signs or symptoms, including occlusion loss due to tooth loss and chewing difficulty. To recover from it, restoring function by placing a dental prosthesis in the event of tooth loss is essential. In Chile, many patients referred to secondary care to perform new prosthetic treatment live in conditions of less oral functionality and enter waiting lists that can take years, impacting general functionality. Falls are a public health problem with a high economic cost, the second cause of death worldwide. One of the causes is sarcopenia, and it has been studied that the decrease in the number of teeth and the occlusal posterior support region may be risk factors for decreased gait speed, an objective measurement of fall risk. It has been studied that the decrease in the number of teeth causes a reduction in total muscle mass, walking speed and lower quality of life. General objective: To evaluate the impact on the general functionality of applying an immediate prosthetic functionalization protocol in patients with deficient removable prostheses, compared with conventional treatment, at the secondary level of the health system, in patients over 70 years of age. Methodology: randomized, double-blind clinical trial with two groups of 62 patients each: experimental and control. The intervention will consist of recovering prosthetic function in one session before conventional rehabilitation vs the control group receiving conventional rehabilitation. Measurements will include manual grip strength measurements made with a Jamar dynamometer, timed up-and-go test, before and after prosthetic treatments and quality of life related to oral health through Ohip 7sp. Descriptive statistics will be applied through the registration of frequency and contingency tables. To compare hand grip strength, Pearson's Correlation will be used; for risk of pre and post-fall, the t-test will be applied for two related samples; for quality of life before and after the intervention, Chi2 will be used; changes in grip strength, fall risk and quality of life, between the different groups according to the Eichner index, one-way ANOVA will be applied, for related samples.
The objectives of this study are to evaluate the performance and safety of the Vantage Mobile-Bearing Total Angle System. This study will follow subjects for a period of up to 10 years post-surgery.