introduction: infecting microorganisms of the root canals are difficult to eliminate during endodontic treatment. in this study the effect of root canal disinfection with photodynamic therapy (pdt) at different time intervals in comparison to 2.5% sodium hypochlorite (naocl) irrigation and passive ultrasonic irrigation (pui) in extracted teeth colonized with enterococcus faecalis and candida al...

We describe the successful use of a combination of nonsurgical root canal treatment and ultrasonic irrigation for collaborative management of a maxillary left lateral incisor with perforation of the apical third of the root. During the endodontic treatment procedure, the ultrasonically activated tip was used for intracanal irrigation. The area of perforation in the apical third of the root and ...

PURPOSE The aim of this study was to compare the shaping effectiveness rotary nickel-titanium (Profile .04 ISO), ultrasonic (K-Type/Satelec), and stainless-steel hand file (K-file/Maillefer) instrumentation and to assess tubular penetration of 2 gutta percha sealers (AH Plus and Sealite-Ultra) following 4 different final irrigation regimens in primary molar roots. METHODS Distal roots of extr...

In this in vitro study, we investigated the efficacy of sodium hypochlorite (NaOCl) and calcium hydroxide (Ca(OH)2) in dissolving necrotic tissue and cleaning root canals. In the first part of the study, 0.5% NaOCl solution and Ca(OH)2 paste and solution were tested with samples of necrotic bovine muscle in different treatment modes and for different periods. The necrotic tissue was weighed bef...

Aim: To compare the efficiency of sonic irrigation, passive ultrasonic and conventional syringe irrigation (CI) in removing pure injectable calcium hydroxide (CH) from root canals mandibular second premolars by measuring probable microleakage residual CH particles canal obturation using computerized liquid filtration (CLF). Materials Methods: Eighty instrumented were categorized into three expe...

Background. This in vitro study aimed to compare the antibacterial effect of different concentrations of sodium hypochlorite on elimination of Enterococcus faecalis from root canal systems of primary teeth with or without a passive sonic irrigation system (EndoActivator). Methods. The root canals of 120 extracted single-rooted primary incisors were prepared using the crown-down technique. The t...

INTRODUCTION Type I laryngoplasty has become the most dependable procedure for the management of anterior and midglottic incompetence since its classification by Isshiki in 1974. Many procedure variations have emerged, including the development of numerous techniques, implants, and prefabricated systems increasing the utilization of medialization laryngoplasty. Sharp dissection of the cartilage...