The patient must bite down on the biteblock as far away from the teeth as possible, using the full extent of the biteblock to maintain a parallel relationship between the image receptor and the teeth in all regions of the oral cavity except the
◦ mandibular premolars and the mandibular molars.
◦ maxillary incisors and canines.
◦ maxillary premolars and the maxillary molars.
◦ mandibular incisors and canines.