This clinical trial aims to investigate whether dexamethasone decreases edema and trismus in adults undergoing lower third molar surgical extraction.
The main question it aims to answer is:
Does dexamethasone submucosal injection have a positive impact on trismus and edema after third molar surgery compared to conventional postoperative prescription?
Participants will:
* Be administered with dexamethasone submucosal injection or a placebo after the surgery. * Visit the clinic three times the week after the extraction for follow-up.
Patients with impacted lower third molars requiring surgical extraction.
Adults over the age of 18 years old.
American Society of Anaesthesiologists (ASA) 1, and ASA 2
Patients with preoperative intraoral or extraoral swelling.
Patients requiring simple extraction (Class I group A according to Pell and ---Gregory classification).
Patients with uncontrolled systemic disease such as uncontrolled diabetic - patients.
Patients who are allergic to corticosteroids.