Plain chocolate is best, it dissolves in your mouth rapidly and therefore does not have time to stick to your teeth. Avoid candy that is chewy, sticky or sour. These types of candies linger in your mouth and stick to the grooves, thereby increasing the chance of caries forming.
Try to drink plenty of water or even better, brush your teeth after your Halloween treat!
Although raisins are considered fruit, they too can lead to tooth decay as they tend to stick to the grooves of your teeth and are high in sugar content.
So enjoy Halloween and try to make good choices with the tempting sweets that surround us!