Root canal treatment takes few hours, is generally carried out in 2 or 3 visits and requires from the endodontist application of force and attention and from patient - patience, discipline and understanding of the importance of the procedure. Endodontists in Florida note that if the root canal is cleaned and filled incompletely, then in the root will accumulate plasma proteins and finally it may lead to the tooth loss. Improperly treated root canal is a source of constant infection, as bacteria will penetrate to other roots causes their inflammation. Decay products of microorganisms and toxins will lead to the destruction of bone around the tooth root. The inflammatory lesion in the bone may eventually turn into a cyst.