Take smaller bites
You need to consume food in the smallest form if you have braces. The sandwich should be eaten in smaller bites to prevent pain in your teeth. Also, if you take bigger bites, there is more chance that some parts of the sandwich will get stuck between the braces. If possible you should cut the sandwich up in to tiny bite sized pieces that you can eat with worrying about your braces.
Make sure you eat the sandwich slowly. You must chew the food slowly to ensure that the bite is broken down completely. Eating carefully is extremely important as if you try to eat the food faster; you may hurt your teeth as the braces may cause pain.
You must frequently drink water with almost every bite to make the breaking down process easier. This will soften the bread and you will find it easier to chew the sandwich. Remember to drink room temperature water because if it is too cold, you could feel some pain from your braces.
Bite with the sides
You must bite with the sides of your teeth as applying more pressure on the front teeth may cause some pain. Taking bites with the front teeth may cause difficulty for the front brackets as they may get plastered with chunks of food.
Use dental silicone
Another good way to ease the eating process is to use dental silicone on the braces. This will make it comfortable for you to eat the sandwich and avoid any possible pain.