抄録
The newly revised American Dental Association Specification No. 11 for Dental Hydrocolloidal Impression Material-Agar Type did not exclude the agar impression materials on the current List of Certified Dental Materials as established by the American Dental Association. Therefore, these materials comply with both the old and the revised specifications which define materials having a wide range of flexibility. The authors recommend that serious consideration be given to the use of agar impression materials, especially in indirect methods.
