Local Anaesthesia in the Lower Jaw
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The buccal cortical bone at the premolars and molars of the lower jaw impedes the diffusion of anaesthetic fluid to the apices of these teeth or into the mandibular canal, located centrally in the jaw bone. Adults require mandibular block anaesthesia for an effective anaesthesia. In the area of the lower canines and incisors, the cortical bone is thinner, and the roots lie on the buccal side of the jaw. Here, infiltration anaesthesia is effective.