OBJECTIVE This study compared the cutting capacity of carbide burs sterilized with microwaves and traditional sterilization methods. MATERIAL AND METHODS Sixty burs were divided into 5 groups according to the sterilization methods: dry heat (G1), autoclave (G2), microwave irradiation (G3), glutaraldehyde (G4) or control - no sterilization (G5). The burs were used to cut glass plates in a cutt...

Eugenical Sterilization in the United States [3] is a 1922 book in which author Harry H. Laughlin [4] argues for the necessity of compulsory sterilization [5] in the United States based on the principles of eugenics [6]. The eugenics movement [7] of the early twentieth century in the US focused on altering the genetic makeup of the US population by regulating immigration and sterilization [5], ...

OBJECTIVE To review the use of quinacrine pellets for non-surgical female sterilization. BACKGROUND The transcervical insertion of quinacrine pellets has been under study for over 15 years. It could potentially expand access to sterilization services, because it is relatively simple to administer, with the use of a modified IUD inserter, and is inexpensive. METHODS Published and unpublished...

Utilizing a plasma to achieve sterilization is a possible alternative to conventional sterilization means as far as sterilization of heat-sensitive materials and innocuity of sterilizing agents are concerned. A major issue of plasma sterilization is the respective roles of ultraviolet (UV) photons and reactive species such as atomic and molecular radicals. At reduced gas pressure (≤10 torr) and...

background and objective: tubal sterilization is the most popular method of permanent female contraception, yet there is considerable debate concerning the influence of this procedure on the women’s health and menstrual pattern.   methods: we randomized 1358 women to one of the five methods of tubal sterilization; unipolar electrocauterization, bipolar electrocauterization, minilaparatomy, pome...

Sterilization of packages prior to product filling is a key step in aseptic filling machines. Chemical sterilization is one of the main conventional techniques in many packaging industries. To monitor the effect of sterilization on test microorganisms (Bacillus atrophaeus spores), an impedimetric sensor approach was developed based on a planar interdigitated electrode (IDE) design. In this work...

During the course of an investigation of cotton for use as air filters on the needles of bleeding units, a heat-resistant, spore-forming organism was isolated. Because of its unusual degree of heat resistance, the organism appeared to be more suitable as a control of the efficiency of sterilization than species of Clostridium usually employed for this purpose. Experiments were undertaken to det...

Introduction: Dental turbine chamber is a suitable reservoir for living microorganisms, so chamber sterilization is necessary for reducing cross contamination risk. On the other hand, in non-vacuum autoclaves, steam penetration into turbine chamber is doubtful, while they are still in use in dental clinics. In this study, performance of small non-vacuum autoclave in turbine chamber sterilizatio...

objective: despite development of new contraceptive methods, sterilization remained the most widely used method. our objective was to determine the factors contributing to decision making for tubal ligation in females. materials and methods: a cross sectional study was conducted in jinnah post graduate medical centre (jpmc) between march - november 2008. about 505 females using contraceptive me...

Optical fibers with different types of polymer coatings were exposed to three sterilization conditions: multiple autoclaving, treatment with ethylene oxide and treatment with gamma rays. Effects of different sterilization techniques on key optical and mechanical properties of the fibers are reported. The primary attention is given to behavior of the coatings in harsh sterilization environments....