Teeth that are soft and weak from biting can be caused by dentin exposure, periodontitis, dental caries, and cracked teeth.
1. Dentin exposure: usually due to poor enamel development and calcification, or enamel erosion by the acidic environment in the oral cavity, resulting in a lack of enamel, resulting in exposure of dentin, which may be manifested in the teeth to bite something soft and sour.
2. Periodontitis: If there is periodontitis, especially frequent periodontitis, it is easy to lead to gum recession, periodontal supportive tissues to reduce, resulting in partial exposure of the tooth root, which may appear teeth bite something soft and sour as reason.
3. Dental caries: If there are cavities, it is easy to lead to food embedded in the cavities, the formation of pressure on the pulp, when the teeth bite, easy to produce impact on the pulp, which may cause the teeth sore and weak.
4. Teeth hidden cracks: after eating hard food, it is easy to lead to teeth hidden cracks, it may show teeth bite something soft and weak, especially in the teeth by hot and cold stimulation, often appear obvious symptoms of toothache.
The teeth bite something sour and weak, should seek medical treatment as soon as possible, after clarifying the cause, give targeted treatment.