Guided Tissue Regeneration in Class IV External Cervical Resorption: A Case Report

Area of Science:

• Dentistry
• Periodontology
• Regenerative Dentistry

Background:

• External cervical resorption (ECR) involves cementum loss, exposing dentin to periodontal ligament cells, leading to root resorption.
• Current ECR treatments focus on restoring resorbed areas but often neglect supporting periodontal tissues.
• Guided tissue regeneration (GTR)/guided bone regeneration is under-explored for ECR management.

Observation:

• A case report details the treatment of class IV ECR using GTR with xenogenic material and a polydioxanone membrane.
• The treatment involved complete debridement of resorption areas and restoration with Biodentine.
• The GTR approach aimed to stimulate bone formation and stabilize periodontal tissues.

Findings:

• Complete debridement and Biodentine restoration effectively repaired the ECR areas.
• GTR significantly contributed to the stabilization of the supporting periodontal tissues.
• The combination of xenogeneic bone graft and polydioxanone membrane proved effective for periodontal health restoration.

Implications:

• This case highlights the importance of integrating periodontal regeneration into ECR treatment plans.
• GTR with specific biomaterials offers a viable strategy for managing complex ECR cases.
• Further research is warranted to explore the long-term efficacy of GTR in ECR treatment.