Many factors out of a dentists control can determine the longevity of a dental restoration of any type.  These factors can change over time depending on a patients habits, health and activities. Informed consents for treatment should outline the concerns, limitations and pros & cons for any care to be  rendrered. All the factors known at the time should be understood and agreed. This is recognized practice and should eliminate misunderstandings on proposed treatment results.

I have no doubts that dentists would like the crowns they provide to last a iife time and  longer than 5 years. However, to make a legal  warranty requirement of dental treatments  provided would not be easily regulated or reasonable.

Respectfully submitted,

William J. Bennett,D.D.S.