Objectives The aim of this study was to assess the survival rate and identify possible risk factors for failure dental implants placed by postgraduate students in Implantology at a Brazilian Dental School. Materials & methods A retrospective observational conducted evaluate 1,164 São Leopoldo Mandic School (Brazil) during 3-year time period (2018–2020). Data collected from patients' med...

This article describes a procedure in which an obturator with an integrated spring-loaded rewinding device retains an orbital prosthesis. This system minimizes movement of the orbital prosthesis during mastication and thus prevents adhesive failure.

Background: The ultimate goal of the treatment of infectious knee arthritis is to protect the articular cartilage fromadverse effects of infection. Treatment, however, is not always hundred percent successful and has a 12% failurerate. Persistent infection is more likely to happen in elderly patients and those with underlying joint diseases,particularly osteoarthritis. Eradica...

Hip resurfacing is an established treatment for osteoarthritis in young active patients. Failure modes include femoral neck fracture and prosthesis loosening, which may be associated with medium-term bone adaptation, including femoral neck narrowing and densification around the prosthesis stem. Finite element modelling was used to indicate the effects of prosthesis sizing and positioning on the...

PURPOSE Radiation therapy (RT) is frequently administered to prevent heterotopic ossification (HO) after total hip arthroplasty (THA). The purpose of this study was to determine if there is an increased risk of HO after RT prophylaxis with shielding of the THA components. METHODS AND MATERIALS This is a retrospective analysis of THA patients undergoing RT prophylaxis of HO at Brigham and Wome...

Chronic smoking can lead to failure of Osseo integration due to decrease in local blood flow and failure of cell proliferation by by-products of smoking. This along with immediate failure of a malpositioned implant, devitalization of adjacent tooth necessitating a call for endodontic treatment or the fracture of the adjacent tooth due to malpositioned implant, fracture of the prosthesis due to ...

Sensitivity to chromium, cobalt, nickel, molybdenum, vanadium, and titanium was studied by patch tests in 50 patients who had received total joint replacements. Nineteen (38%) were sensitive to one or more of the metals. In 23 patients non-traumatic failure of the prosthesis had occurred, and 15 of these patients were sensitive to metal. Out of 27 patients with no evidence of prosthesis looseni...

A dentin-cement-prosthesis complex restored with either all-porcelain, cured resin-composite, or cast base metal alloy and cemented with either of the different resin cements was trimmed into a mini-dumbbell shape for tensile testing. The fractured surfaces and characterization of the dentin-cement interface of bonded specimens were investigated using a Scanning Electron Microscope. A significa...

BACKGROUND The uncemented Nottingham Total Shoulder Replacement prosthesis system (Nottingham TSR) was developed from the previous BioModular shoulder prosthesis taking into consideration the causes of the initial implant's failure. We investigated the impact of changes in the design of Nottingham TSR prosthesis on its survivorship rate. METHODS Survivorship analyses of three types of uncemen...