BACKGROUND The relative merits of round versus naturally shaped breast implants continue to be a subject of debate. OBJECTIVE The results of augmentations with McGhan Style 110 round textured noncohesive-gel-filled implants were compared with those using McGhan Style 410 FM naturally shaped, textured cohesive-gel-filled implants in 2 similar groups of patients. METHODS Patients in each impl...

peri-implantitis is a site-specifi c infectious disease that causes an infl ammatory process in soft tissues, and bone loss around an osseointegrated implant in function. the etiology of the implant infection is conditioned by the status of the tissue surrounding the implant, implant design, degree of roughness, external morphology, and excessive mechanical load. the microorganisms most commonl...

In this study, Nickel-Chrome-Molybdenum alloy is manufactured using investment casting method with centrifugal device from a polyurethane foam model in regular and open-pore form, as hard tissue implant. The samples produced have 10, 20, 30 (±3) pores per inch 0.0008, 0.0017, 0.0027 g/mm3 densities, respectively. Young’s modulus, hardness mechanical behaviors of the were investigated by SEM, ED...

The dosimetry of exposure to radiofrequency (RF) electromagnetic (EM) fields of mobile phones is generally based on the specific absorption rate (SAR, W kg(-1)), which is the electromagnetic energy absorbed in the tissues per unit mass and time. In this study, numerical methods and modelling were used to estimate the effect of a passive, metallic (conducting) superficial implant on a mobile pho...

In the absence of any published information on the indications, frequency, and outcomes of revision augmentation/mastopexy, an 8-year retrospective review was undertaken of all patients undergoing revision of a previous augmentation/mastopexy in the senior author's practice. The data collected included original implant type, location and mastopexy type, indication for revision, interval from or...

BACKGROUND A large, multicenter, 10-year observational study is comparing the long-term safety and effectiveness of Natrelle silicone breast implants versus saline implants or national norms. METHODS Women who underwent primary augmentation, revision-augmentation, primary reconstruction, or revision-reconstruction were invited to participate. Enrolled subjects had completed surgery and receiv...

Electronic implants are able to restore some visual function in blind patients with hereditary retinal degenerations. Subretinal visual implants, such as the CE-approved Retina Implant Alpha IMS (Retina Implant AG, Reutlingen, Germany), sense light through the eye's optics and subsequently stimulate retinal bipolar cells via ∼1500 independent pixels to project visual signals to the brain. Becau...

introduction: the survival of an implant system is affected by the choice of antirotational design, which can include an external or internal hex. implant success also is affected by the maintenance of the crestal bone around implants. the aim of present study was to evaluate the crestal bone loss and clinical parameters related to bone loss in patients loaded with an external or internal hex 3...

objectives: implant primary stability is one of the important factors in achieving implant success. the osteotome technique may improve primary stability in patients with poor bone quality. the aim of this study was to compare implant stability using two different techniques namely osteotome versus conventional drilling in the posterior maxilla. materials and methods: in this controlled randomi...