the aisi 316 l stainless steel (ss) specimens were exposed to passivation surface through two different processes including; holding in 40-vol% hno3 at temperature of 60 ºc for 30 min and 15-vol%h2so4 at ambient temperature for 1 hour. the corrosion behavior of specimens was evaluated in physiological solutions by electrochemical in vitro tests through linear and tafel polarization tests. cycli...

introduction: implant bed preparation with laser is taken into consideration owing to the increased interest in use of lasers in hard tissue surgery. the purpose of this study is to determine the deviations in the position and inclination between the planned and prepared implant beds with erbium, chromium doped yttrium scandium gallium garnet (er,cr: ysgg) laser using stereolithographic (sla) s...

Background: There are a number of different implant choices for surgical treatment of distal radius fractures, oftendetermined by surgeon preference or availability. Although no one volar plate demonstrates superior outcomes, thereare significant cost differences absorbed by hospitals and surgical centers. This purpose of this study is to characterizethe economic implications of implant selecti...

Background: We used a database of patients treated at three hospitals to study the primary null hypothesis that thereare no factors associated with unplanned reoperations or adverse events after surgical repair for diaphyseal claviclefracture. Additionally we addressed the following secondary study questions: 1. What is the prevalence of unplannedreoperations or adverse events...

 Dental implants, as a result of their excellent success rates and advantages over fixed or removable methods, have become the optimal treatment for replacing missing teeth. Surgical and restorative techniques that can reduce the loss of hard and soft tissues that often accompany implant placement are desirable. Achieving an esthetic outcome in tooth replacement and implant treatment requires a...

CT-based dental imaging for implant planning and surgical guidance carries both clinical and radiographic information for implant positioning as far as trajectory, depth and distribution. The significance of accurate planning and surgical guidance as it pertains to critical anatomical landmarks, such as the mandibular canal, maxillary sinus and adjacent teeth, cannot be overstated. This case re...

BACKGROUND Dental primary implant stability is considered essential in the success of the osseointegration process. The recent advent of the resonance frequency analysis (RFA) seems to effectively measure primary implant stability, although its relationship with implant survival has to be further established. PATIENTS AND METHODS Seventy patients with complete mandibular edentulism underwent ...

implant surgery in mandibular anterior region may turn from an easy minor surgery into a complicated one for the surgeon, due to inadequate knowledge of the anatomy of the surgical area and/or ignorance toward the required surgical protocol. hence, the purpose of this article is to present an overview on the: (a) incidence of massive bleeding and its consequences after implant placement in mand...