Managing multiple pathologies within the same quadrant requires a structured and disciplined approach. While premolars often demand precise proximal reconstruction, endodontically treated molars require cuspal protection to prevent fracture.
This case highlights a biomimetic workflow addressing both challenges in a single visit under strict isolation.
Diagnosis & Treatment Plan
- Premolar: Proximal caries → Class II composite restoration
- Molar: Endodontically treated with significant structural loss → Cuspal coverage restoration
Plan:
- Rubber dam isolation of the quadrant
- Adhesive Class II restoration for premolar
- Post-endo cuspal coverage build-up for molar
Clinical Procedure
Step 1 – Isolation
- Full quadrant rubber dam isolation
- Proper inversion ensured contamination control
- Allowed efficient workflow across multiple teeth
Step 2 – Premolar: Caries Removal
- Peripheral seal zone completely cleaned
- Matrix system placed with proper wedging
- Clear visualization of proximal margins
Step 3 – Premolar: Adhesive Restoration
- Selective etch protocol
- Bonding agent application (Clearfil SE Bond 2)
- Proximal wall built first to establish contact
- Incremental composite layering for anatomy
Step 4 – Molar: Post-Endo Assessment
- Evaluation of remaining tooth structure
- Weak cusps identified requiring coverage
- Preparation refined for adhesive cuspal protection
Step 5 – Cuspal Coverage Build-Up
- Adhesive protocol applied
- Reinforced composite core (bulk + incremental approach)
- Cusp-by-cusp reconstruction to distribute occlusal forces
Step 6 – Occlusion & Finishing
- Occlusal adjustments to avoid heavy contacts
- Finishing and polishing for smooth margins and longevity
Key Clinical Points
- Quadrant isolation improves efficiency and outcomes
- Contact and contour in premolars define long-term success
- Endodontically treated molars should not be left without cuspal protection
- Adhesive dentistry allows conservative yet strong restorations
- Protocol consistency matters more than speed
Outcome
- Tight proximal contact in premolar
- Reinforced molar with functional cuspal coverage
- Stable occlusion and anatomical morphology
- Long-term prognosis improved for both teeth
Conclusion
A protocol-driven approach allows simultaneous management of restorative and post-endodontic challenges. Proper isolation, adhesive principles, and biomimetic reconstruction ensure predictable and durable outcomes.
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