Teeth that can’t bite ice should be treated in different ways according to different causes. Possible causes include trauma, allergy, caries, etc. Treatments include restoration, pulp capping, filling surgery treatment, and so on. 1. Trauma: If tooth trauma causes chipped teeth and exposes dentin, the teeth will be sensitive to temperature stimulation and need to be treated with restoration, pulp capping and other treatments. 2. Allergy: Tooth allergy can be manifested as toothache when biting cold or hot food, which can be treated by local desensitization. 3. Dental caries: If the caries has reached the superficial layer of dentin or the deep layer of dentin, it will produce pain response to cold, hot and other stimuli, and need to be filled for treatment, and if the caries has caused pulpitis, it may need to carry out root canal treatment. The inability of teeth to bite icy things may also be caused by other reasons, you should go to the hospital in time to find out the cause and targeted treatment.