There are many types Of teeth fracture and treatment depends upon what type of the fracture u have,if you are saying that almost half of the tooth structure is lost then you may need to undergo RCT with post-core to improve the life of teeth.
Next Steps
Get the Intraoral x ray done first do decide prognosis of the teeth.
Health Tips
Do the treatment at the earliest as late may hamper the prognosis and may lessen your confidence.Regards.