Biologic width refers to the combined dimension of the junctional epithelium and the connective tissue attachment that surrounds the tooth, typically measuring around 2.0 mm.
This natural barrier plays a crucial role in protecting the periodontium from microbial invasion and maintaining periodontal health.
When restorative margins encroach on this space, they can trigger chronic inflammation, attachment loss, and even bone resorption.
► VIDEO: Managing Extremely Deep Margins: Advanced Clinical Solutions for a Complex Restorative Challenge
As highlighted by Dr. Gordon Christensen, respecting the biologic width is not just a matter of precision—it is an essential principle that ensures the durability of both natural teeth and prosthetic restorations.
A deep understanding of this concept allows clinicians to design restorations that are biologically compatible, functionally stable, and esthetically pleasing.
