Aligners are way more comfortable as compared to traditional braces. This is so because they are less bulky, smooth in nature, easy to wear and remove. But, it is important to understand that aligners are capable of causing teeth movements and these movements of teeth do cause some pain. Aligners help bring your teeth into a straight line and this is done by applying some pressure on your teeth. This pressure on the teeth is put by the aligners. Whenever pressure is applied to teeth, there is some bone remodelling that occurs and this leads to the teeth becoming sore and painful. Sometimes the soreness is mild.
Apart from the pain that arises from the movement of teeth, there can be some pain in the teeth and gums due to the fitting of the aligner. If the aligners are ill-fitting or not fitting properly, they tend to cause immense pain. If the aligner has sharp edges, it tends to bruise the soft tissues in the mouth and lead to ulcers. These can be painful if not corrected in time.
