Efficacy of Dexamethasone or Adrenaline in Inferior Alveolar Nerve Block

The modified technique of classical IANB was to be selected to avoid failure as described by Clark and Homes (1959). The patients were requested to keep their mouth wide open and an occlusal plane parallel to the floor. Palpation of anatomical landmarks was done properly and the guide finger was positioned at the retromolar fossa. A 5 ml syringe equipped with a 24 gauge needle length of 3.6 cm was used, it was been advanced from premolar on the opposite side into the tissue just above the fingernail until hitting the bone. The body of the syringe was redirected over the lower central incisors and kept parallel to the molars in a horizontal plane at the same time. The needle was inserted another 2 cm deep into the tissue and 3.5 ml of solution X was deposited 1 cm higher than the usual after multiple aspirations (90 degrees two planes). Further, 1 ml solution X was deposited after the withdrawn needle in pterygomandibular space.