What is the smear layer composed of?
In dentistry, the smear layer is a layer found on root canal walls after root canal instrumentation. It consists of microcrystalline and organic particle debris.
Why is the smear layer removed?
Removing the smear layer allows for more cleaning and disinfecting root canal walls and better adaptation of root canal filling materials.
What are endodontic Irrigants?
Irrigants can augment mechanical debridement by flushing out debris, dissolving tissue, and disinfecting the root canal system. Chemical debridement is especially needed for teeth with complex internal anatomy such as fins or other irregularities that might be missed by instrumentation.
How do you deal with a accident with sodium hypochlorite?
Immediate irrigation of canal with normal saline to dilute the sodium hypochlorite. Let the bleeding response continue to flush the irritant out. Advice ice pack compression for 24 hours (15 minutes interval) to minimize the swelling. Recommend warm, moist compress after 24 hours (15 minutes interval) .
Does sodium hypochlorite remove smear layer?
The most commonly used irrigating solutions for endodontic treatment are sodium hypochlorite (NaOCl) and chlorhexidine (CHX) . These are used more specifically because of their antimicrobial properties; however, neither can remove the smear layer effectively.
What is smear layer in root canal?
When the root canals are instrumented during endodontic therapy, a layer of material composed of dentine, remnants of pulp tissue and odontoblastic processes, and sometimes bacteria, is always formed on the canal walls. This layer has been called the smear layer.
Does EDTA remove smear layer?
The results show that the smear layer can be totally removed by using 10 ml of a four-to-three by volume mixture of EDTA and ethylenediamine for irrigation of instrumented root canals.
What is smear layer endodontic?
Abstract. When the root canals are instrumented during endodontic therapy, a layer of material composed of dentine, remnants of pulp tissue and odontoblastic processes, and sometimes bacteria, is always formed on the canal walls. This layer has been called the smear layer.
How do you dilute sodium hypochlorite for Endo?
It is recommended to begin with a 5.35% concentration of sodium hypochlorite. With a 1:1 dilution, a 2.5% (w/v) concentration might be obtained, that is to say, use one part of 5.25% sodium hypochlorite with the same volume of water to arrive at the desired result.
What are the most common compositional techniques for photographers?
These are some of the most common compositional techniques for photographers who want to create a visually interesting shot. Use the rule of thirds. The rule of thirds is a way of dividing frames for optimal composition.
How long does tetraclean take to work?
Tetraclean, vice versa, seems to have no action at all after the irrigation (its behaviour being similar to the nutrient broth), but exerts its action progressively during the subsequent 72 hours until it completely eradicates the bacterial loads in all the examined samples.
What are the Seven Principles of nature photography composition?
Seven Principles of Nature Photography Composition •Clarify your message •Keep it simple •Be patient •Fill the frame •Consider verticals •Find lines •Place subjects off-center from the Beginner’s Guide To Nature Photographyby Cub Kahn 2/21/2012 Goddard Photo Club 29 Pay Attention to the Light 2/21/2012 Goddard Photo Club 30
What is the difference between tetraclean and sodium hypochlorite?
The findings of this experience confirm that Tetraclean is able to penetrate deep into dentinal tubules (6-700µ) (pics 14,15) while the action of Sodium Hypochlorite is usually confined to the root canal surface (pic 16).