Know all about Root canal therapy. Root canal treatment is designed to remove bacteria from the infected root canal, prevent reinfection of the tooth and save the natural tooth. When one undergoes a root canal, the inflamed or infected mash is expelled and the inside of the tooth is carefully cleaned and sterilized, then filled and fixed. common signs when you need a Root canal Sensitivity to cold or Heat Severe toothache pain upon chewing Darkening of the tooth Chipped or cracked teeth Repeated dental treatments on the same tooth. Dental decay (cavities) -It allows bacteria into the pulp and infect it. Swelling nearby gums How is root canal treatment done? The entire root canal treatment may take place in one sitting, or at times 2 or 3 sessions depending on the condition of the tooth. Each sitting may last in 40 - 90 minutes. It is a simple treatment with relatively little or no discomfort. Using a needle, the dental specialist ad...