This standard specifies the method of marking oral regions, tooth positions and tooth surfaces with double numbers. This standard applies to the fields of dental clinics, teaching, scientific research and production.
GB/T 9938-1988 history
2013GB/T 9938-2013 Dentistry.Designation system for teeth and areas of the oral cavity
1988GB/T 9938-1988 Dentistry--Designation system for teeth and areas of the oral cavity