For any brand of porcelain veneers, including Lumineers, to fall off is highly unusual. To have them constantly fall off reeks of incompetence. Your dentist obviously doesn't understand proper bonding techniques.

How long do Lumineers last?

RESULTS — HOW LONG DO LUMINEERS LAST? Lumineers should be cared for just like your other teeth — with daily brushing and flossing — and when properly maintained they can last anywhere from 5 to 20 years.

How common is it for veneers to fall off?

Since that time, at least one veneer falls off every two to three weeks. Justino, It is not normal for veneers to fall off. They shouldn't fall off at all and certainly not every two to three weeks.