What it means, if you need second root canal treatment? 

If the first root treatment hasn’t been successful, treatment can be repeated. Dentist will have to remove the previous filling material and will try to remove the cause of the failure of a previous treatment. The most often causes are the non-instrumented parts of the curved canals at the root tips. There are found more resistant strains of bacteria which can complicate the treatment of the tooth. In the past, tooth with need of a second root canal treatment was removed, but with today’s modern methods it can be successfully treated. Due to these difficulties, the treatment success is lower than in the first endodontic treatment, but at a specialist level, reaches about 70% of the success rate.

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