OBJECTIVES The aim of this study was to compare the canal debridement capabilities of three single file systems, ProTaper, and K-files in oval-shaped canals. MATERIALS AND METHODS Seventy-five extracted human mandibular central incisors with oval-shaped root canals were selected. A radiopaque contrast medium (Metapex; Meta Biomed Co. Ltd., Chungcheongbuk-do, Korea) was introduced into the can...

This long-term retrospective study investigated the value of debridement versus debridement and Osteoset T antibiotic-loaded calcium sulphate pellets in the treatment of adult chronic osteomyelitis. Sixty-five patients were included in the study. The mean follow-up was 75 months (range: 36 to 334). Forty cases were treated by debridement, and 25 by debridement and Osteoset T. The healing rates ...

The patient was diagnosed with anuloaortic ectasia with localized dissection in the right Valsalva sinus. He underwent aortic root replacement with mechanical valve. But, he was re-admitted for mediastinitis. Although his serum (CRP) level was normalized for one month, his body temperature suddenly rose to 40°C. An emergency operation was performed including re-sternotomy, drainage, and irrigat...

OBJECTIVES Ultrasonic scalers have become increasingly popular for subgingival debridement. The aim of the present study was to investigate the influence of different working tip designs (narrow versus wide) on root substance loss caused by either magnetostrictive or piezoelectric ultrasonic devices. METHODS In this in vitro study, a magnetostrictive ultrasonic system with either Slimline or ...

PURPOSE This study was conducted to evaluate the surgical outcomes of active infective endocarditis with aortic root abscess formation. MATERIALS AND METHODS Between February 1999 and June 2012, 49 patients underwent surgery for active endocarditis with aortic root abscess. The infected valve was native in 29 patients and prosthetic in 20 patients. The patients' mean age was 50±14 years, and ...

Stable electrochemical patterns appear spontaneously around roots of higher plants and are closely related to growth. An electric potential pattern accompanied by lateral root emergence was measured along the surface of the primary root of adzuki bean (Phaseolus angularis) over 21 h using a microelectrode manipulated by a newly developed apparatus. The electric potential became lower at the poi...

the aim of this study was to evaluate the effect of cyclic loading on the bond strength of quartz fiber posts to root canal dentin after different surface treatments of different regions of root canal dentin.forty-eight single-rooted human teeth were selected. post spaces were prepared and then the teeth were divided into four groups: g1: no treatment (control); g2: irrigation with a chemical s...

BACKGROUND The authors evaluated the efficacy of an erbium,chromium: yttrium,scandium,gallium,garnet (Er,Cr:YSGG) laser-powered hydrokinetic system (HKS) versus that of rotary instrumentation for root canal débridement. METHODS The authors studied four uninstrumented controls and two test groups of 18 matched pairs of teeth. Teeth from each pair underwent different instrumentation but receive...

The phenomenon of cavitation was investigated in an Enac-Osada ultrasonic unit using a #15 CaviEndo file 25-mm long. The observed cavitation was incorporated in a subsequent study which investigated the effects of cavitation on debridement, One group of 10 teeth was subjected to the cavitating file while a second group served as a control. Scanning electron microscopic observations revealed tha...

PURPOSE The authors determined the synthesis, cell surface expression, and localization of integrins in the rat corneal epithelium to detect whether any changes in integrins occur during epithelial migration in response to simple debridement wounding. METHODS Immunoprecipitation analysis of extracts from either metabolically or surface-labeled rat epithelia was done to assess the synthesis an...