How Long Does Composite
Bonding Last?
Composite bonding typically lasts 5-7 years, though this varies based on location, bite forces, diet and maintenance. Here is what the clinical evidence shows.
Average Lifespan
Clinical studies report 5-10 year survival rates of 80-90% for direct composite restorations. Front teeth bonding tends to last longer than back teeth due to lower bite forces. The composite materials used today are significantly more durable than those from even a decade ago.
Factors That Affect Longevity
Teeth grinding (consider a night guard), biting hard foods, dark staining drinks, and oral hygiene all affect how long bonding lasts. Regular hygienist visits help maintain the restoration.
When to Replace
Signs bonding needs replacing: visible staining, chipping, roughness, gaps appearing at edges. Replacement is straightforward and usually completed in one visit.
Clinical Evidence & References
- Lempel et al. (2017). "Fluorescence of composite resins and their longevity." Dental Materials, 33(1), 84-98.
- Burke FJ (2018). "Survival rates for direct composite restorations." Dental Update, 45(4), 258-271.
- NHS UK β Dental Treatments overview (nhs.uk/conditions/dental-treatments)
- British Dental Association β Composite Bonding patient guidance (bda.org)
Ready to Take the Next Step?
Book your Β£40 consultation at Tower Dental Blackpool