What is the recommended procedure to prevent cervical resorption defects following internal bleaching?

The recommended procedure to prevent cervical resorption defects following internal bleaching involves removing Gutta Percha at least 2mm below the cementoenamel junction (CEJ) or above the crest of the alveolar bone and providing isolation. This technique is vital because it helps to reduce the risk of heat generated during bleaching and prevents bleaching agents from coming into contact with the tooth structure that may lead to damage or resorption.

When Gutta Percha is removed, it allows for proper isolation of the root canal space during the bleaching process. This isolation is critical as it ensures that the bleaching agents do not adversely affect the surrounding periodontal tissues and helps maintain the structural integrity of the tooth. By keeping the bleaching agent contained within the canal, the likelihood of cervical resorption occurring outside of the canal is minimized, thus preserving tooth health.

The other options, while they may serve different purposes in dental care, do not directly address the prevention of cervical resorption in the context of internal bleaching. Applying topical fluoride typically helps in protecting enamel and aiding in the remineralization process, but it is not focused on the specific concerns related to cervical resorption during internal bleaching. Similarly, using a resin-based sealer on the apex is more relevant to sealing after root canal treatment