Hello
Firstly the extend of the crack has to be evaluated on an X ray so that if it can be saved by filling or Root canal treatment (RCT) (depending on the crack) it should be treated for the same.If only root stumps are present then it should be extracted. Please get the tooth treated before it gets infected and start giving you pain and discomfort .
Next Steps
Visit dentist as early as possible to prevent further damage.
Health Tips
Maintain your oral hygiene and don't let food get accumulated in the cracked tooth area.