According to your symptoms and your mother-in-law's 77-year-old age, it can be inferred that gingival atrophy leads to root exposure. Because tooth roots are not protected by enamel like crowns, roots exposed to oral acid environment are prone to sores due to allergies to cold, heat, acid, sweet and other stimuli.

At the same time, due to gingival atrophy, there is a lack of cushioning effect of healthy gums. When chewing, the root of the tooth directly impacts the gums, which will also cause pain, which is the unique "biting pain" of gingival atrophy.

Gingival atrophy in the elderly is usually caused by periodontitis or physiological degradation. At present, for middle-aged and elderly people, it is suggested to choose some natural products that are pure natural, non-toxic and non-irritating, such as chewable tablets 1, which can deliver nutrition to the gums, regenerate the atrophied gums and repackage the exposed roots by restoring the nutritional metabolism function of the gums, thus eliminating root allergy, restoring healthy gums, and making teeth chew hard again, so as not to be bothered by occlusal pain.

Usually a nursing cycle (2 months) is used, and obvious rehabilitation effect can be seen.

I hope the elderly will live a long and healthy life ~ ~