| Number | Name | Date | Kind |
|---|---|---|---|
| 3898186 | Mermelstein | Aug 1975 | |
| 4207198 | Kenkare | Jun 1980 | |
| 4439355 | Kenkare | Mar 1984 | |
| 4451385 | Tavas | May 1984 | |
| 4528182 | Curtis | Jul 1985 | |
| 4554097 | Schebece et al. | Nov 1985 | |
| 4839158 | Michaels | Jun 1989 |
| Number | Date | Country |
|---|---|---|
| 1160485 | Aug 1969 | GBX |
| 8704922 | Aug 1987 | WOX |
| Entry |
|---|
| Accepted Dental Therapeutics, American Dental Associates, Chicago, 1979, pp. 268-269. |
| Hart, J. R. et al., J. Soc. Cosmet, Chem. vol. 31:223-236 (Sep./Oct. 1980). |