Specification No. 3950
This schema (ANSI/ADA/ISO Specification No. 3950–1984 Dentistry Designation System for Tooth and Areas of the Oral Cavity) is designed to identify areas of the oral cavity as well as uniquely number permanent and primary dentition. Supernumerary teeth are not yet identified using this standard. For more information see Appendix to Section 3 of this CDT manual.