sfta4 Download single image for 35mm slide. Download single PowerPoint screen.	A diastema is considered normal in the mixed dentition as part of normal dental development. This period is known as the "ugly duckling" stage of development. (Photo: the "ugly duckling" stage)
sfta5 Download single image for 35mm slide. Download single PowerPoint screen.	(Photo: frenum with a diastema in a 6-year-old)
sfta6 Download single image for 35mm slide. Download single PowerPoint screen.	A diastema, or space, between primary or permanent central incisors is often associated with, though not necessarily caused by, a prominent superior labial frenum. (Diastema: frenum in an 8-month-old) [The diastema can also be caused by an unerupted supernumerary, or extra, tooth. A diastema in excess of 3 mm persisting after eruption of the permanent canines (age 10-13) should be evaluated for treatment options such as a frenectomy and/or orthodontic treatment.]