Overview
Piezoelectric devices use micrometre-scale ultrasonic oscillations of a metal tip to cut mineralised tissue. Below the frequency that affects soft tissue, they cut bone cleanly while leaving adjacent membranes, vessels, and nerves comparatively intact — a useful property when working close to the Schneiderian membrane or the inferior alveolar nerve.
Where piezo is most useful
- Lateral window sinus lift: reduced risk of Schneiderian membrane perforation compared with rotary instruments [1].
- Ridge splitting: precise vertical cut on narrow ridges without splintering.
- Inferior alveolar nerve lateralisation: selective bone removal around the nerve canal.
- Atraumatic extraction: sectioning roots in confined spaces without trauma to adjacent teeth or bone.
Trade-offs
- Slower than rotary cutting — significant for larger osteotomies.
- Requires dedicated tips and unit.
- Operator learning curve, especially for hand pressure.
Frequently asked questions
Scientific references
- 1. Pjetursson BE, Tan WC, Zwahlen M, Lang NP. (2008). A systematic review of the success of sinus floor elevation and survival of implants inserted in combination with sinus floor elevation. J Clin Periodontol. 35(8 Suppl):216-40. View source