Final answer:
The compounds used as actives in tartar control toothpastes are pyrophosphate, zinc, and polymer of ether and maleic acid (PVM/MA).
Step-by-step explanation:
The compounds used as actives in tartar control toothpastes include:
- Pyrophosphate: Pyrophosphate helps to prevent the formation of tartar by binding to calcium ions in saliva and preventing their deposition onto the teeth.
- Zinc: Zinc chloride is added to toothpaste to help reduce tartar and bad breath.
- Polymer of ether and maleic acid (PVM/MA): PVM/MA acts as a tartar control agent by inhibiting the growth of bacteria involved in plaque formation.
Therefore, the correct answer is D. All of the above.