Intraosseous Versus Submucosal Dexamethsone Injection in Third Molar Surgery

The goal of this clinical trial is to learn if intraosseous dexamethasone injection is better for pain and swelling postop 3rd molar surgery than submucosal dexamethasone injection. The main questions it aims to answer are: Does intraosseous dexamethasone injection provide better pain relief and lessen facial swelling than submucosal dexamethasone injection Does intraosseous dexamethasone injection provide better interincisal opening than submucosal dexamethasone injection Researcher will compare both the techniques to see if intraosseous dexamethasone injection works better than submucosal dexamethasone injection Participants will: Be assessed at 3rd and 7th day postoperatively Pain will be assessed through visual analog scale score Facial measurement will be calculated as horizontal measurement plus vertical measurement divided by 2, where horizontal measurement will be taken as the distance between corner of the mouth and the earlobe attachment, and vertical measurement will be taken as distance from outer canthus of the eye to the angle of jaw. Interincisal opening will be measured from the incisal edge of the maxillary central incisors to the incisal edge of mandibular central incisors at the midline by using millimeter ruler