Over the past two years, I’ve had a dental hygienist use a magnetostrictive ultrasonic cleaner on my teeth. On three occasions (most recently last week), I’ve had a porcelain veneer fracture within days after the appointment. I don’t think it’s a coincide anymore. Is the scalar damaging my veneers? – Thanks. Corinth from GA
Corinth,
A porcelain veneer should remain unharmed during a routine dental cleaning when the instrument is used properly. Dental offices typically use either a piezoelectric or magnetostrictive ultrasonic scaler. The most widely recognized magnetostrictive unit is the Cavitron, made by Dentsply. It has been a trusted instrument in dentistry for many years.
Although magnetostrictive scalers can be gentle on teeth, they require precise technique. When used correctly, they are considered safe around porcelain veneers.
How Might an Ultrasonic Scaler Fracture a Porcelain Veneer?
A porcelain veneer may fracture if an ultrasonic scaler is used incorrectly. The most likely explanation is that the scaler’s active tip touched the porcelain surface. That contact should be avoided because porcelain can chip when subjected to concentrated force from a hard metal instrument.
Most dental hygienists use ultrasonic scalers daily without causing damage. Even so, careful instrument control is essential when a patient has porcelain restorations.
What Other Problems Can Improper Scaling Cause?
Improper scaling can affect more than just dental restorations. When an ultrasonic scaler is not handled carefully, it can cause permanent damage with long-term consequences.
Potential problems include:
- Fractured porcelain veneers or crowns
- Nicks on exposed root surfaces
- Rough root surfaces that collect plaque more easily
- Greater buildup of calculus
- An increased chance of gum disease or root cavities if roughened areas remain untreated
Is One Type of Ultrasonic Scaler Better Than the Other?
Both piezoelectric and magnetostrictive scalers are effective when used correctly.
A study published in the Journal of Clinical Periodontology reported that magnetostrictive scalers produced smoother root surfaces, although treatment took slightly longer. Another review provides a helpful explanation of these findings and compares how each type of scaler performs in clinical practice.
Dr. James Gavrilos, an accredited cosmetic dentist from Barrington, Illinois, sponsors this post. Read about how he strives to provide some of the best dental care in Barrington.