Dental Press
| Dentistry Monthly | Put to the test |  |
| BDJ | Whitening toothpastes: Meeting needs or satisfying demands | |
| Newton Johnson | An exciting new development in oral hygiene | |
| Newton Johnson | A further development of the Janina Opale Programme Toothpaste | |
| Newton Johnson | Janina Opale Programme Toothpaste and the Liquid Toothpaste Spray | |