incisor
teeth at the front of the mouth
mandibular central incisor
the first lower tooth from the dental midline on both sides of the mouth
maxillary central incisor
the first upper tooth from the dental midline on both sides of the mouth
mandibular lateral incisor
the second lower tooth from the dental midline on both sides of the mouth
maxillary lateral incisor
the second upper tooth from the dental midline on both sides of the mouth