As the gutta-percha is solid core obturating material, voids are more commonly seen in the sealer mass or at the interface with the sealer which allows the passage of toxin to pass into the periapex
and decreases the quality of obturation.
In case of discolored tooth, a periapical radiograph is necessary to evaluate the quality of endodontic filling, the periapex
region and a possible alteration of a resorption process.
A Comparative Investigation of Conebeam Computed Tomography and Periapical Radiography in the Diagnosis of a Healthy Periapex
. J Endod 2014; 40: 360-5.
Thus, periapical disease is a biological response to the presence of infection in the root canal and sometimes in the periapex
Most frequently, infection affects the periapex
through the apical foramen (foramen apicis dentis).
Periapical sclerosing osteomyelitis is limited to the periapex
of a nonvital tooth and does not show continuous growth.
The consequences of the loss of coronal seal are well established: a communication is established between the oral cavity and the periapex
or periodontium through a lateral canal or the apical foramen .
Osteosarcoma of mandible initially resembling lesion of dental periapex
: a case report.
The soft tissue removed from the periapex
was sent for histological evaluation.
Induced hypoxia in rat pulp and periapex
demonstrated by 3H-misonidazole retention.
27 cases with PAP and 27 cases with (2012) (21) a healthy periapex
Amaya et al.