Hello, I wonder if the soother has caused an open bite? Please look to see if her teeth come together when she bites down. Often, these can put pressure on the upper front teeth causing the teeth and upper arch to move forward. She may then breath through her mouth and dry out her tissue. This can cause soreness. This can result in a tongue habit of pushing against her teeth or tongue thrust. Plaque will dry against the teeth making it harder to remove. Decay and giginivitis will become a concern. Make sure she takes adequate vitamins especially with a restricted diet. Adequate protien is needed. Beans are a good source of protein. Some foods help cleanse such as celery. Avoid high sugars and sticky foods. Avoid high acid content. Some fruits can have high sugar and acid such as orange juice. Do not consume excess. I hope this is helpful. Schedule a visit to an orthodontist or a pedodontist for a full evaluation and recommendations. Thank you for your inquiry.