How Long Can My Dentures Last? Insights from a 20-Year Study

Complete dentures are crucial to oral health for millions of people worldwide. One common question among denture wearers is: How long can my dentures be used? A 20-year population-based retrospective study provides valuable insights into the longevity of complete dentures and the impact of relines on their lifespan. Let’s dive into the findings and what they mean for denture users.

Key Factors Influencing Denture Longevity

The study, conducted on 187,227 Australian adults who accessed subsidized denture treatment, assessed how long complete dentures last after issuance. It also evaluated the timing and frequency of denture relines (adjusting the denture base to fit the gums better) and their effect on denture longevity.

1. Average Denture Longevity

  • Dentures receiving no relines lasted an average of 6.22 years.
  • Dentures that underwent an early reline (within 12 months of issuance) had a reduced lifespan, averaging 5.03 years.
  • Dentures that received a late reline (after 12 months) lasted longer, averaging 7.12 years.

2. Incidence of Relines

  • Only 5.9% of participants had their dentures relined over 20 years.
  • The rate of relines was highest during the first year of denture use and decreased as dentures aged.

Impact of Relines on Denture Longevity

The timing of a reline significantly affects how long your dentures can serve you effectively:

Early Reline (Within 12 Months)

Relining dentures early was associated with a 2% reduction in their longevity. This could be due to:

  • Structural changes in the dentures when adjusted too soon.
  • The natural reshaping of the gums and bone during the first year of denture use can make an early reline less effective long-term.

Late Reline (After 12 Months)

Relines performed after at least one year were linked to a 15% increase in denture longevity. This finding suggests that waiting for the gums and jawbone to stabilize before relining leads to better outcomes.

What This Means for Denture Wearers

The study highlights the importance of timing when considering a reline. To ensure your dentures last as long as possible:

  1. Follow-up care is essential. Regular check-ups with your dentist can help monitor how well your dentures fit and determine the best time for relining.
  2. Avoid rushing into an early reline. Allow your gums and jawbone to adjust to the dentures naturally before making modifications.
  3. Consider a late reline. If you notice discomfort or instability after the first year, a reline can improve comfort and extend the life of your dentures.

Clinical Takeaway

Relining your dentures can significantly impact their durability. Late relines, performed after the first year, offer better longevity outcomes compared to early relines. By working closely with your dentist and ensuring timely maintenance, you can maximize the lifespan and comfort of your dentures.

Ready to improve the lifespan of your dentures? Book an appointment with your dentist today to discuss relining options and proper maintenance for long-term success.

Kogarah Denture & Dental Clinic listed their business on iSeeGP.

Sources:

Taylor M, Masood M, Mnatzaganian G. Longevity of complete dentures after relines: A 20-year population based retrospective study of 187,227 publicly insured adults. J Dent. 2022 Jun;121:104073. doi: 10.1016/j.jdent.2022.104073. Epub 2022 Feb 19. PMID: 35189311.