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 Several irrigation techniques have been recently introduced with the main objective of improving root canal disinfection. This in vitro study aimed at comparing the intracanal bacterial reduction promoted by chemomechanical preparation with 3 different irrigation techniques. METHODS Root canals from extracted teeth were contaminated with Enterococcus faecalis ATCC 29212 for 7 day...

South Sumatra Province is a province that flowed by many rivers, including the Musi River, longest river on island of Sumatra. The condition inadequate irrigation infrastructure means farmers in Menten Village can only plant one crop per year. This study aimed to determine water needs tertiary canals and design dimensions connectivity channels. Repairing network village planned increase product...

Submersed weeds on irrigation systems reduce water delivery capacity, clog pumps and structures, rupture canals, increase leakages and losses of water, increase water costs, etc. (U.S.EPA, 2007). Herbicide applications are a commonly used procedure to control submersed weeds in irrigation canals because of its practicability, efficacy and cost. Acrolein, currently registered under the trade nam...

BACKGROUND The purpose of this study was to investigate the smear layer removal and erosive capacity of various irrigation solutions with sequential use of NaOCl on instrumented root canal walls. METHODS The root canals of single-rooted teeth were instrumented with ProTaper rotary instrument. Then, the teeth were randomly divided into five experimental groups. The root canals were irrigated w...

The aim of this study was to detect and characterize noroviruses (NoVs) in environmental water samples. One hundred and fourteen water samples were collected from a river and irrigation canals in central Thailand during 2006-2007. NoVs were detected by RT-nested PCR in 13% of the samples. The river samples (22%) contained NoVs at a higher frequency than the irrigation canal samples (4%). Among ...

BACKGROUND To evaluate the incidence of flare-ups and identify the risk factors including age, gender, tooth type, number of root canals, initial diagnosis, the type of irrigation regimen, treatment modality and the number of visits, in patients who received root canal treatment from January 2002 to January 2008. METHODS Records of 1819 teeth belonging to 1410 patients treated by 1 endodontic...

INTRODUCTION Taper is a factor that determines final root canal dimensions and, consequently, the dimensions of the space for the cleaning action of irrigants. Therefore, the aim of the present study was to investigate the influence of taper on root canal cleanliness. METHODS Root canals of 45 mandibular incisors were divided into 3 groups and prepared with GT rotary files to apical preparati...

BACKGROUND To compare the amount of debris extruded apically by using conventional syringe, Endovac & Ultrasonic irrigation. MATERIALS & METHODS Thirty freshly extracted mandibular premolars were selected, working length was determined and mounted in a debris and collection apparatus. The canals were prepared. After each instrument change, 1 ml. of 3% sodium hypochlorite was used as irrigatio...

Quantification of SARS-CoV-2 in urban wastewaters has emerged as a cheap, efficient strategy to follow trends active COVID-19 cases populations. Moreover, mathematical models have been developed that allow the prediction following temporal patterns viral loads wastewaters. In Mexico, no systematic efforts reported use these strategies. this work, we quantified rivers and irrigation canals Mezqu...