Final answer:
The primary advantage of non-eugenol periodontal dressings is that they reduce the likelihood of irritation or allergic reactions compared to dressings that contain eugenol.
Step-by-step explanation:
The primary advantage of using non-eugenol periodontal surgical dressing over periodontal surgical dressings that contain eugenol is that non-eugenol dressings are less likely to cause irritation or an allergic reaction in the tissue. Eugenol, which is found in traditional periodontal dressings, is a natural compound derived from clove oil that can sometimes cause a burning sensation, irritation or allergic reactions, particularly in patients with sensitivity to eugenol. By using a non-eugenol dressing, the patient is less likely to experience discomfort and the healing process can proceed without these potential complications.