Sandler, P J Space maintenance for an upper central incisor during treatment: an aesthetic solution. [electronic resource] - British journal of orthodontics Feb 1988 - 41-3 p. digital Publication Type: Journal Article ISSN: 0301-228X Standard No.: 10.1179/bjo.15.1.41 doi Subjects--Topical Terms: Acrylic ResinsEsthetics, DentalHumansIncisorMaxillaSpace Maintenance, OrthodonticTooth, Artificial