How come a cracked tooth hurts sporadically with breathing in air and then it doesn't hurt at all for days?

Cracked tooth: A cracked tooth can lead to air, sweet, temp or biting sensitivity or a combination of those. it is important to have a dentist evaluate the cracked tooth asap as delay can lead to worsening of the crack and loss of the tooth.

Cracked tooth: Every day your teeth sustain a tremendous amount of pressure from biting, grinding and chewing, so if you bite down on something hard or crunchy the force can cause the cracked tooth to be more sensitive.

Episodic Pain: The tooth hurts you when the stimulus hits it just certain way... the air must not be hitting it the same way every time. Either way, your tooth is telling you something: HELP! Please see a local dentist to have the tooth examined and restored. The pain will eventually become continuous, and the end result will still be a visit to a dentist.

Normal: Normal response in a cracked tooth. Depending on the location of the crack, the tooth is either fixable or should be extracted. Consult your DDS about options.