Table 1. Eligibility Criteria Selection of the Patients.

Inclusion criteria selection of the patients
The patient has bilateral impacted lower third molars symmetrically positioned on both sides of the mandible of which surgical removal consists of flap operation, bone removal, and tooth section
Aged between 18 - 45 years
No history of allergy to dexamethasone, amoxicillin, or acetaminophen
No use of other medicine 1 month before and during the study period
The patient is able to understand and carry out the instructions given by the investigators
The patient has provided their consent for the study

Exclusion criteria selection of the patients
Pregnancy or current lactation
Patients with cardiovascular problems, renal and/or liver failure, or other serious medical conditions
Allergic to local anesthetics and other drugs that were used in this study
Patient with facial deformities that may interfere with the injections, surgery or evaluation
The existence of acute infection and/or swelling and pain at the time of surgery
Patients taking any medication during the previous 1 month prior to the surgery
Inability to follow the instructions or cooperate during the study
Duration of treatment more than 1 h