Eating chocolate is worse for your teeth than other candies because it sticks to your teeth and causes decay.
Chocolate doesn't cause more tooth decay than other sweets. In fact, dark chocolate contains compounds with antibacterial properties. Tooth decay is caused by bacteria fermenting sugars and producing acid. While chocolate contains sugar, it's not stickier or more damaging than other candies. The key factor is frequency of consumption and oral hygiene, not the chocolate itself.
Reception
Sources
- Chocolate and Dental Health PRIMARY
- Snopes: Chocolate Decay REFERENCE