Table 1 shows the percentage change in mass of eggshell pieces (acting as a model for teeth) after being submerged in various beverages for 5 days.
| Beverage | Percentage change in mass (%) |
|---|---|
| Tap water | 0.0 |
| Plain milk | 0.0 |
| Diet cola | -2.3 |
| Apple juice | -3.1 |
| Flavoured milk | -1.2 |
Explain why it is better for dental health to drink plain milk rather than flavoured milk.
Use data from Table 1 in your answer.