Resorption (Root)
Pronunciation: rih-SORP-shun
The pathological or physiological loss of root dentine and cementum, visible radiographically as shortening, blunting, or irregular destruction of the root outline.
Full Definition
Root resorption in dental radiology refers to the loss of hard root tissue and is classified by location and aetiology. External root resorption occurs at the outer root surface and is visible as irregular or blunted root tips, notching, or lateral defects. Internal root resorption originates within the pulp canal and appears as an oval or fusiform radiolucency within the root outline. Both types are common findings in radiological reports and must be described with precision, as they carry different clinical implications and treatment approaches. Editors must ensure the report clearly specifies 'external' or 'internal' resorption, and must distinguish resorption from dental caries, fracture lines, or artefacts such as cervical burnout. The verb form is 'resorb'; the noun 'resorption' should not be replaced with 'absorption' in clinical contexts.
Usage
Usage note: Never substitute 'absorption' for 'resorption' in a dental/medical context. Always specify 'internal' or 'external' when both types are discussed.
In Context
- "Blunting of the apex of the upper-left central incisor was noted, consistent with external root resorption." — Periapical radiology report
- "The manuscript used 'absorption' where 'resorption' was clearly intended; these terms are not interchangeable in dental radiology." — Manuscript editing note