Intraradicular reinforcement for traumatized immature teeth

Area of Science:

• Endodontics and Restorative Dentistry
• Pediatric Dentistry
• Dental Materials Science

Background:

• Immature necrotic teeth present significant endodontic and restorative challenges due to incomplete root formation and weakened dentinal walls, increasing fracture risk.
• Traditional treatments for such teeth are often complicated by the thin, fragile nature of the dentin and the open apex.
• Adhesive dentistry and advanced materials offer potential solutions for reinforcing these compromised structures.

Observation:

• A case study involving a nine-year-old patient with a complicated fracture of an immature anterior tooth.
• The tooth exhibited characteristics of immaturity, including an open apex and thin dentinal walls.
• Endodontic treatment was initiated using mineral trioxide aggregate (MTA) in the apical third.

Findings:

• Successful intraradicular reinforcement of the flared canals was achieved using composite resin and a light-transmitting glass fiber post.
• The weakened dentinal root walls were effectively strengthened, preventing further fracture.
• A functional and aesthetically pleasing restoration was completed with a glass fiber composite post and a metal ceramic crown.

Implications:

• This case demonstrates the efficacy of combining mineral trioxide aggregate, light-transmitting fiber posts, and composite resin for rehabilitating fractured immature teeth.
• The technique provides a viable method for reinforcing flared canals and preserving the integrity of weakened root structures.
• Successful treatment maintains the tooth's function within the dental arch, crucial for pediatric patients.