As in other connective tissues protected, the pulp is healthy, vital and closed it sterile. Therefore, the pulp is practically always disease secondary to other infections in our teeth, iatrogenic causes, or some less common cases, traumatic occlusion.
What causes pulp disease?
The origin of this problem is in contrast to other major oral infections and dental caries and periodontal disease, which are directly related to the formation of plaque in our mouths. Because of this, those organizations who happen to be the direct antecedent of the inflammation process associated with pulp disease are endogenous oral bacteria, which have access to the connective tissues of the pulp. This means that these bacteria are those normally present in the oral cavity.
This environment is favorable to them, and giving them the nutrition that allows these to be replicated. Usually, these bacteria cannot express the properties capable of initiating the invasion in a normal environment, that is why we are generally considered low virulence.
Increased virulence is usually expressed only when accessing the connective tissues such as dental pulp. These infections are also called opportunistic pathogens, and infections that cause opportunistic infections are called endogenous.
Factors affecting the types of bacteria that are isolated from the root canal infection include the route of infection, trauma, and association with periodontal disease.
Invasion of the pulp as a result of the extension of dental caries is one, especially younger patients the usual problem. In patients who have periodontal disease, accessory canals in the side surfaces of the teeth may become exposed to bacterial plaque agents.
These microorganisms are capable of multiplying in accessories passages, causing inflammation and necrosis. Over time, these organisms will to spread to infect the pulp chamber. After the mechanical exposure of a root canal, it indicated that a large number of organisms are streptococci, which are the body with a higher prevalence in the mouth. Also, we keep in mind that there are over 400 species of bacteria in our mouth.
With the right combination of periodontal pathogens and cariogenic agents could develop the condition known as root caries, often quickly. Complications endodontic root caries include calcification level of caries, thereby blocking access to the duct occurs.
Initiating the process of endodontics could trigger an acute exacerbation of chronic apical periodontitis, with pain and swelling. The loss of pulp vitality allows invading bacteria entering the root canal and freely develops a periapical abscess.