What is the basis for current endodontic therapy of a periapical lesion:
- A. Due to rich collateral circulation system, the perpical area usually heals despite the condition of the root canal.
- B. If the source of periapical irritation is removed, the ppotential for periapical healing is good.***
- C. Strong intracanal medications are required to sterilized the canal and periapical area to promote healing.
- D. Periapical lesions, especially apical cyst, must be treated by surgical intervention.
The correct answer is: B. If the source of periapical irritation is removed, the potential for periapical healing is good.
Here's why the other options are not accurate:
A. Due to rich collateral circulation system, the perpical area usually heals despite the condition of the root canal:
This is false. While some limited blood supply exists in the periapical area, it's insufficient to guarantee healing if the source of infection (infected pulp tissue) remains in the root canal.
C. Strong intracanal medications are required to sterilized the canal and periapical area to promote healing:
This is partially true. While proper cleaning and disinfection of the root canal system are crucial for healing, relying solely on strong medications for sterilization is not the primary basis for current endodontic therapy.
D. Periapical lesions, especially apical cyst, must be treated by surgical intervention:
This is not always true. While some cases, like large cysts or complex anatomical variations, might require surgical intervention, successful endodontic treatment without surgery can often lead to healing of periapical lesions, including apical cysts.
Therefore, the current basis for endodontic therapy emphasizes removing the source of periapical irritation (infected pulp tissue) through thorough cleaning and shaping of the root canal system. This allows the body's natural healing capabilities to repair the periapical area. While medications and surgical intervention might play a role in specific situations, they are not the primary basis for successful endodontic treatment.
Remember, the choice of treatment for periapical lesions should be individualized based on various factors like the severity of the lesion, anatomy of the tooth, and patient preferences. Consulting with a qualified endodontist is crucial for determining the most appropriate approach to achieve optimal healing and long-term success.
