Reversible pulpitis is only a minor inflammation of the pulp. This may be due to any reason for stimulating the pulp. Some of the common causes of reversible pulpitis are:
Has not reached the cavity of the nerve.
Erosion of teeth reaching dentine
Drilling by the dentist when filling or crown preparation on teeth
Dental enamel fractures that can expose dentine
Have the dental hygienist clean (scratch!) teeth, especially if they have tooth roots, if you have periodontal disease.
Symptoms of reversible pulpitis can range from no symptoms to severe pain when they are stimulated by something that will not cause pain to your teeth.
When you eat ice cream, the cold will quickly disappear when you swallow the ice cream and there will be severe pain on the teeth, so you may have reversible pulpitis. Unlike irreversible pulpitis, pain usually disappears after a few seconds of stimulation.
Fortunately, the name of reversible pulpitis is because it is reversible - it can disappear if it's reason is taken away. For example, if you brush your teeth, use dental floss, and use a rehydrating mouthwash, you can remineralize the tooth that just started and heal it. If this is what causes your reversible pulpitis, reversible pulpitis will disappear.
All that is needed to cure reversible pulpitis is to find the cause of the inflammation and eliminate it.