INTRODUCTION The aims of this study were to evaluate dentin debris removal from the root canal during ultrasonic activation of sodium hypochlorite (2% and 10%), carbonated water, and distilled water and to determine the influence of 3 ultrasonic refreshment/activation cycles of the irrigant by using the intermittent flush technique. METHODS Root canals with a standardized groove in 1 canal wa...

A successful endodontic treatment depends on appropriate instrumentation, irrigation, decontamination and obturation. Chemomechanical instrumentation removes majority of the infecting bacteria, but this is not achieved completely because of complex root canal anatomy and limitation in accessing the root canal system (Manzur et al., 2007). Persistent endodontic infection might be attributed to t...

The major objective in endodontic therapy is to disinfect the entire root canal system. This requires that the pulpal content be eliminated as sources of infection. This goal may be accomplished by mechanical instrumentation and chemical irrigation, in conjunction with medication of the root canal between treatment sessions. Microorganisms and their by-products are considered to be the major ca...

AIM To monitor ex vivo intra-canal irrigation with three endodontic needles (25, 27 and 30 gauge) and compare them in terms of irrigant flow rate, intra-barrel pressure, duration of irrigation and volume of irrigant delivered. METHODOLOGY A testing system was constructed to allow measurement of selected variables with pressure and displacement transducers during ex vivo intra-canal irrigation...

INTRODUCTION The complex anatomy of the root canal system has been shown to limit the penetration of irrigating solutions into the apical third; hence, the aim of this study was to determine whether the use of a patency file is related to the presence of a radiopaque irrigating solution in the apical third of human root canals after using passive ultrasonic activation in vivo. METHODS Forty h...

BACKGROUND AND OBJECTIVES Limited information exists regarding the induction of explosive vapor and cavitation bubbles in an endodontic rinsing solution. It is also not clear whether a fiber has to be moved in the irrigation solution or can be kept stationary. No information is available on safe power settings for the use of cavitation in the root canal. This study investigates the fluid moveme...

objectives: biomechanical preparation and irrigation with antimicrobial solutions are necessary to disinfect the root canal space. this in vitro study aimed to examine the antifungal effect of green tea extract on candida albicans biofilm formed on tooth substrate. materials and methods: minimum fungicidal concentration (mfc) and minimum inhibitory concentration at which 90% of the isolates wer...

根尖性歯周炎は根管内病原体による炎症性疾患とされており，その治療手順の一つである根管洗浄は清掃器具の届かない領域に残存する根管内病原体の除去に重要である．Er:YAGレーザー等を用いた根管洗浄法（laser-activated irrigation: LAI）は衝撃波，キャビテーションおよび高速水流を生じる優れた根管清掃法として報告されているが，清掃の至適条件の不明確さや根尖孔外への洗浄剤の溢出への懸念がある．本総説では，Er:YAGレーザーによるLAIの清掃効果と安全性について過去の報告を元に概説するとともに我々の研究を紹介する．

introduction: a desirable characteristic of root canal irrigants is the ability of dissolving soft tissues. sodium hypochlorite, an antibacterial and tissue solvent irrigant used in endodontic treatment is known to be toxic for periapical tissues. chlorhexidine gluconate, an effective antimicrobial agent, is another irrigant with limited tissue dissolving ability. a mixture of a tetracycline is...