Introduction: The main goal of the successful endodontics is the complete sterilization of the root canal space. During preparation, irrigants and debris such as bacteria, dentin fillings and necrotic debris may be extruded into the periradicular region leading to periapical inflammation and postoperative flare-ups. Several instrument designs and irrigation techniques have been developed to pre...

PURPOSE This study aims at comparing two different types of drainage tubes in conjunctivodacryocystorhinostomy, which are used for upper lacrimal system obstruction or damage, with respect to their respective postoperative problems and solutions. METHODS Nineteen eyes of 17 patients who underwent conjunctivodacryocystorhinostomy (CDCR) or conjunctivorhinostomy (CR) surgery with a Medpor coate...

The present study investigated the intracanal decontamination and apical extrusion of bacteria debris from root canals instrumented with rotary reciprocating systems (ProDesign Logic or ProDesign R), different file diameters using conventional syringe irrigation (CSI) passive ultrasonic (PUI). Eighty extracted mandibular premolars were contaminated Enterococcus faecalis randomly assigned to eig...

Reasons for intrastromal corneal ring segment explantation In their recent article, Ferrer et al. report that 57 of 250 implanted intrastromal corneal ring segments (ICRS) had to be explantedda rate of 22.8%. The main cause of this very high explantation rate was extrusion (48.3%). There are 2 major causes of ICRS extrusion: (1) superficial implantation of a segment and (2) a segment that is pl...

may have been • mantle plume, but, alternatively, it may have been triggered by an asteroidal impact An impact fall-out layer with shocked debris has been reported at the Tr/J boundary in Italy [13]. The s ynchronicity of extrusion and extinction appear established as an event horizon independent of radiometric or fossil stratigraphy. Of course, enthusiasm for impacts does not score points in t...

Background: Endodontic success depends on the complete cleaning and shaping of root canal. In order to achieve this goal, debris removal is essential. Even with improvements in instrument design, apical extrusion continues be a cause periradicular inflammation. The current study aimed compare amount apically extruded throughout canal instrumentation TruNatomy, ProTap...