Periotomes and Atraumatic Tooth Extraction: A Practical Guide

As implant dentistry has grown, so has the emphasis on removing teeth without damaging the surrounding bone. Periotomes are the instruments that make this possible. By severing the periodontal ligament around a tooth, they allow it to be eased out with minimal trauma — preserving the bony socket walls for a future implant.

How periotomes work

A periotome has a fine, sharp blade that is inserted into the gap between the tooth and the alveolar bone. Working gently around the circumference, the blade cuts the periodontal ligament fibres and gradually expands the socket. Because the force is directed along the root surface rather than against the bone, the socket walls stay intact.

Periotome designs

• Straight and curved blades: Straight periotomes suit anterior teeth; curved and angled versions reach posterior teeth and follow root curvature.
• Single- and double-ended: Double-ended instruments combine two angles in one handle.
• Flexible blades: Thin, flexible blades adapt to the root surface for the most delicate cases.
• Hollow handles: Lightweight handles improve tactile feedback during fine work.

Periotomes vs luxators

The two are often confused. A periotome has a very fine blade designed mainly to cut the ligament with light pressure. A luxator is slightly heavier and is used with a controlled rocking motion to both cut the ligament and expand the socket. Many clinicians use periotomes first, then progress to luxators and elevators as needed.

Why atraumatic extraction matters

Preserving the socket walls and surrounding bone reduces ridge resorption after extraction. This is especially important when an implant or bridge is planned, because more preserved bone means a more predictable restoration and often less need for grafting.

Technique and care

Periotomes rely on a sharp edge and patience rather than force. Advance the blade in small increments and let it do the cutting. Inspect and maintain the edge after each use, and replace blades that have become dull or damaged. Surgical stainless steel is the usual material for strength and repeated sterilisation.

Dental Expert supplies periotomes and atraumatic extraction instruments to oral surgeons and clinics across Italy and Europe.