Dental Radiology Glossary
105 terms total — 24 showing — Last updated 15 Sep 2026
Stafne Bone Cavity
A developmental bone concavity on the lingual surface of the posterior mandible caused by a submandibular salivary gland inclusion, presenting radiographically as a well-defined, corticated, unilocular radiolucency below the mandibular canal.
ALARA
An acronym for 'As Low As Reasonably Achievable,' the guiding radiation protection principle requiring that patient expo...
Alveolar Bone
The portion of the maxilla and mandible that forms and supports the tooth sockets (alveoli), visible on dental radiograp...
Ameloblastoma
A benign but locally aggressive odontogenic tumour that typically presents radiographically as a multilocular radiolucen...
Ankylosis (Dental)
Fusion of the tooth root cementum and/or dentine directly to the surrounding alveolar bone, with loss of the intervening...
Anterior Nasal Spine
A bony projection at the base of the nasal septum, visible on periapical and cephalometric films as a sharp radiopaque l...
Apical Periodontitis
Inflammation of the periapical tissues resulting from pulpal infection or necrosis, presenting radiographically as widen...
Artefact (Radiographic)
Any structure, density, or distortion visible on a radiographic image that does not correspond to an actual anatomical f...
Beam Hardening Artefact
A CBCT image artefact caused by preferential absorption of lower-energy X-ray photons as the beam passes through dense s...
Bisecting Angle Technique
A periapical radiographic projection method in which the X-ray beam is directed perpendicular to an imaginary line that...
Bitewing Radiograph
An intraoral X-ray that shows the crowns of both upper and lower posterior teeth and the crest of the alveolar bone on a...
CBCT Voxel
The smallest three-dimensional unit of data in a cone beam computed tomography volume, analogous to a pixel in two-dimen...
CCD
Abbreviation for Charged Couple Device, a solid-state digital sensor used for real-time intraoral image capture in direc...
Cephalometric Radiograph
A standardised lateral or posteroanterior extraoral X-ray of the skull used primarily in orthodontic and orthognathic su...
Cervical Burnout
A radiographic artefact producing a false appearance of radiolucency at the cervical margin of a tooth, caused by the ge...
Charged Couple Device
A solid-state electronic sensor used in direct digital dental radiography systems to capture X-ray images in real time.
CMOS
Abbreviation for Complementary Metal-Oxide-Semiconductor, a type of direct digital sensor used in intraoral dental radio...
Condensing Osteitis
A focal area of increased bone density (radiopacity) at or near a root apex, typically in response to chronic low-grade...
Cone Beam Computed Tomography
A three-dimensional dental imaging modality that uses a cone-shaped X-ray beam to produce volumetric data of the maxillo...
Cone Cutting
A radiographic projection error in which part of the image receptor is not exposed because the collimated X-ray beam has...
Coronoid Process
The anterior projection of the mandibular ramus that can appear as a triangular radiopacity superimposed on the maxillar...
Cortication
The presence of a well-defined radiopaque (cortical bone) rim surrounding a radiographic lesion, indicating a slow-growi...
Cross-Sectional Imaging
Any radiographic modality that produces images representing slices through the body in planes other than conventional tw...
DAP
Abbreviation for Dose Area Product, a radiological quantity expressing total beam energy incident on the patient, measur...
Density (Radiographic)
The overall degree of blackening or brightness of a radiographic image, determined by the quantity of radiation reaching...