Which of the following statements regarding periodontal dressing is accurate?

The statement that periodontal dressing can be applied on both facial and lingual sides based on need is accurate because periodontal dressings are designed to protect the surgical site and promote healing. Their application is not limited to just one side of the mouth but can be strategically placed on both the facial and lingual sides as dictated by the nature of the dental procedure and the needs of the patient. Adequate coverage on both sides can help maintain the integrity of the site and prevent irritation or injury.

In contrast, applying a dressing only at night would not provide continuous protection or support healing throughout the day. Limiting the dressing to the facial side could leave other areas vulnerable, which defeats the purpose of the dressing's protective function. Additionally, a dressing that is removed after just one day may not provide sufficient time for the healing process, which typically requires a longer period before removal. Therefore, the flexibility to apply the dressing to both sides as necessary is essential for effective postoperative care.