What is true about concomitant perio-periapical lesions related to endodontic failure?

Concomitant perio-periapical lesions in the context of endodontic failure refer to the presence of both periodontal disease and periapical pathology. It is accurate that these lesions may be discovered prior to treatment. This can happen through clinical examinations, radiographic imaging, or during the evaluation of a patient's history and symptoms.

Identifying these lesions beforehand is crucial as it allows for a more comprehensive treatment approach. Understanding the interaction between periodontal and periapical issues enables practitioners to devise a treatment plan that adequately addresses both conditions, which can significantly impact the prognosis and long-term success of endodontic therapy.

The other options suggest limitations on the discovery of these lesions or make assumptions about their prevalence in certain teeth, but the reality is that with proper diagnostic methods, providers can identify these lesions before initiating any treatment.