You might be surprised to know that the answer to this question is something along the lines of every three months. When you are looking to purchase a new toothbrush, it can be tempting to go ahead and buy the first one you see but for many people, this is not a good idea. If you are unsure about what works best for you, there are a couple of things that you can do to make sure that you do not end up buying the wrong toothbrush.
One of the first things that you need to do is take note of how often you brush your teeth on a regular basis. You might have noticed that when you are brushing your teeth you tend to spend less time in between the teeth and gums. If this is the case, you should try to set a routine for yourself so that you are spending the right amount of time brushing. You should also figure out which kind of toothbrush you are going to purchase. The majority of toothbrushes are made from plastic, but if you want to try something a little eco-friendlier, consider Bamboo Toothbrush at https://bambooth.com/
Another thing that you will want to keep track of when purchasing different types of toothbrushes is how much you are going to have to pay for them. While it might be tempting to go with the cheapest toothbrush that you can afford, you should know that you are going to be spending more money than you would if you bought a cheaper one. This is because the cheapest toothbrushes tend to need replacing quicker than a better made toothbrush.