Background and aim: The purpose of this study was to evaluate the effect of autoclave sterilization on the fracture rate of ProTaper instruments (ex vivo). Materials and methods: One hundred shaping and finishing ProTaper instruments were used in a crown – down technique for cleaning and shaping the mesial canals of extracted mandibular molars using 5.25% NaOCl for irrigation. In the e...

Sterilization is used in a varity of industry field and a strictly required process for some products used in sterile regions of the body like some medical devices and parenteral drugs. Although there are many kinds of sterilization methods according to physicochemical properties of the substances, the use of radiation in sterilization has many advantages depending on its substantially less tox...

ABSTRACT Extruded bone is a rare complication of high energy open fractures, and there is only a handful of literature on reimplantation of the extruded segment. No clear guidelines exist regarding timing of reimplantation, stabilization of extruded bone segments, and also bone disinfection and sterilization techniques. Previous reports describe sterilization using thermal or chemical methods. ...

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 METHODS Published and unpublished...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...