Which procedures are classified as “invasive” in dentistry?

The classification of procedures as "invasive" in dentistry is based on the degree to which they penetrate the body's barriers. Invasive procedures typically involve any treatment that breaks the surface of the skin or mucous membranes, or otherwise violates the integrity of the tissue.

Surgeries and extractions are classic examples of invasive dental procedures, as they involve cutting into tissue and physically removing parts of the body (such as teeth). Additionally, any treatment that penetrates barriers—such as dental implants or other procedures that require incisions or puncturing of the gum tissue—falls into this category. These types of procedures usually carry a higher risk of complications, including infection or excessive bleeding, which further solidifies their classification as invasive.

While fillings and bridge placements may involve altering teeth or placing materials inside or between them, they do not penetrate the tissue to the same extent as surgeries or extractions. Teeth cleaning is also non-invasive, as it does not involve breaking any barriers; it is mostly a preventive measure that maintains oral health rather than treating disease.

Thus, the correct classification of invasive procedures encompasses surgeries, extractions, and any treatment that penetrates barriers, accurately reflecting the level of complexity and potential risk associated with these types of dental interventions.