Active clinical trials for "Prosthesis Failure"

the evaluation of patient satisfaction of All on-4 versus All on-3 implant treatment concepts rehabilitation of atrophied mandibular ridge.

This is a randomized, prospective clinical trial. The aim of the project is to assess the clinical performance of three types of tooth-supported crowns; monolithic high translucent colored zirconia, crowns of high-translucent colored zirconia with a mini-veneer buccally and crowns of lithium-disilicate glass-ceramic. Crowns will be placed on posterior teeth and evaluated from an esthetic and functional point of view, to identify if there are any differences between the materials.

The aim of this study is to assess the effect of the newly introduced (hybrid dental ceramic) superstructure materials, Vita Enamic versus IPS Emax on implant stability, patient satisfaction and crestal bone loss.

this project seeks to understand and quantify the effects of powered transtibial prostheses on socket loading and direct measures of residual limb health so as to inform the optimization of prosthesis fit.

This study is a multi-center, prospective, non-controlled post-market surveillance study. The primary objective of this study is to confirm the safety and performance of the CLS Brevius stem with Kinectiv technology by obtaining implant survivorship and clinical outcomes data for the commercially available stem.

Esophageal cancer is the sixth leading cause of cancer death in worldwide. Over the past 2 decades, well-designed clinical trials have documented the clinical benefits of combination of chemotherapy and radiation for localized esophageal cancer, either as primary therapy or in neoadjuvant setting. Paclitaxel, a radiation sensitizer, has important single-agent activity in esophageal cancer. Paclitaxel-based chemoradiation has been the framework for the recent Radiation Therapy Oncology Group (RTOG) trials of nonoperative management of esophageal cancer. Accumulating clinical evidence suggests that Epidermal Growth Factor Receptor (EGFR) represents a viable target in the treatment of esophageal cancer. EGFR expression is associated with poor prognosis. Nimotuzumab binds specifically to EGFR on both normal and tumor cells and competitively inhibits the binding of Epidermal Growth Factor (EGF) and other ligands, such as Transforming Growth Factor-α (TGF-α). Preclinical models have suggested synergy between nimotuzumab, paclitaxel, cisplatin and radiation. For our phase II study in locally advanced esophageal squamous cell carcinoma (ESCC), the combination of cetuximab and chemoradiotherapy has demonstrated both response and survival benefits. Myara et al reported that nimotuzumab plus concurrent chemoradiation therapy (CCRT) was safe and provided statistically significant objective response (47.8%) and disease control rate (60.9%) in nonresectable ESCC. With all these, the investigators plan to study phase III trial.

This study evaluates the success rate, as the biological and prosthesis complications, of posterior single-unit implants immediately loaded with a chair side Computer-Aided Design and Manufacturing (CAD-CAM) composite crown, after a follow-up period of 6 months,1,2,3,4 and 5 years. Complementary ex vivo analyses will be performed to evaluate the wear of restorations. The time and cost benefit of the presented digital workflow, as patient centered outcomes will also be evaluated.

In patients receiving implants in the esthetic zone, would the use of new Nano hybrid ceramic crown material (Crystal Ultra) improve esthetic patient satisfaction and peri-implant tissue success when compared with Lithium Disilicate crown (E-max)?

Monocentric, non-interventional Post-Market Clinical Follow-Up (PMCF) Study on past implantations of the Prevision® prosthesis; the survival rate of the Prevision® prosthesis shall be evaluated and compared to literature results on comparable Revision stems.

A multi-centre, non-comparative, prospective post-market clinical follow-up study to obtain survival, clinical and radiographic outcomes data on the Zimmer Fitmore Hip Stem.