1. Academy of Prosthodontics, Glossary of prosthodontic terms, 7th ed. J Prosthet Dent 81:39-110, 1999.
2. Jablonski S, Jablonski’s Dictionary of Dentistry. Krieger, Malabar, Fla, 1992, pp 158-9.
3. Zwemer TJ, Boucher’s Clinical Dental Terminology, 4th ed. Mosby-Year Book, St. Louis, 1993, p 50.
4. Harty FJ, Concise Illustrated Dental Dictionary, 2nd ed. Wright/Butterworth-Heinemann Ltd, Oxford, 1994, p 47.
5. A new translucent cement for dentistry. The glass ionomer cement