TY  - RPRT
TI  - Protective coatings for tooth crowns.
AU  - A D Johnston
AU  - R L Bowen
PY  - 1991
DO  - 10.14219/jada.archive.1991.0133
UR  - https://pubmed.ncbi.nlm.nih.gov/2022787/
ID  - 2022787
ER  -