Australian Dental Council (ADC) Test 2025 – 400 Free Practice Questions to Pass the Exam

The ideal endpoint for root filling in root canal treatment is at the dentino-cemental junction. This is important because the dentino-cemental junction represents the area where the dentin of the tooth meets the cementum covering the root surface. Filling to this point helps to ensure that any remaining infected or necrotic tissue in the apical region is adequately sealed and that the root canal system is properly obturated without overfilling.

Filling to the dentino-cemental junction effectively maximizes the sealing capabilities of the filling material while minimizing the risk of extruding material beyond the apex, which can lead to complications such as irritation of the surrounding tissues, potential exacerbation of infection, or formation of a periapical lesion. This strategy also promotes healing and the success of the treatment by maintaining a healthy environment for the surrounding periodontal tissues.

Choosing different endpoints, such as ending the filling at the apex or beyond it, may compromise the treatment's success and the health of the surrounding tissues. Therefore, aiming for the dentino-cemental junction is regarded as the best practice in endodontic therapy.