A training aid for a dental injection, including a human-like head model, a first apparatus for alerting when the dental injection is properly positioned in the human-like head model, and a second apparatus for alerting when the dental injection is not properly positioned in the human-like head model. The interior structure of the human-like head includes for targeting purposes the maxilla with appropriate arteries and nerves being clearly visible, the mandible with appropriate arteries and nerves being clearly visible, and the buccal gingiva over the mandibular canal being clearly visible. The first apparatus and the second apparatus are so positioned within the human-like head model to allow for training for the dental injection including a V2 block including infiltration, posterior superior alveolar, middle superior alveolar anterior superior, infraorbital, greater palatine, and nasopalatine, and V3 blocks including inferior alveolar, buccal nerve, and mental block.