A diastema occurs between the incisors and the cheek teeth. There was a diastema (gap) between the incisors and molars of the mandible. The philtrum creates a gap (diastema) between the roots of the first two upper incisors. The incisors were separated from the row of cheek teeth by a large diastema (gap). A gap, or diastema, occurs between the incisors and the cheek teeth in most species. The incisors are followed by a long toothless gap, known as the diastema. There is also a space separating the canines and premolars known as a diastema. Also, there was a diastema (gap) between the lower premolars (p2 and p4). There is also a diastema (gap) between the second and third premolars (p2 and p3). The small mental foramen was close to the upper middle margin of the diastema. Precanine teeth are often replaced by a large diastema in therapsids. A diastema (plural diastemata) is a space or gap between two teeth. An especially long diastema is seen between the front and cheek teeth. Like Charles, she has a prominent diastema (a space or gap between two teeth). Within this step is a diastema, or gap in the tooth row.