Evidence-informed CBCT support for general dentistry

Clinical CBCT Decision Center

Decision support

CBCT is about better decisions.

CBCT is often viewed as an endodontic or implant tool. In a restorative practice, its value is broader: it helps clarify uncertainty when 2D imaging, symptoms, and anatomy do not line up clearly.

The most important question is not, "Can CBCT see more?" It is, "How often does 3D information change the decision I would have made otherwise?"

Published studies repeatedly show that CBCT can change diagnoses, clarify uncertainty, and alter treatment plans in a meaningful percentage of cases, especially when symptoms are unclear, anatomy is difficult to understand in 2D, or important findings may be obscured.

This guide keeps that decision context close to the literature, workflow, and patient-specific limits.

Referral accuracyBetter understand when a case may need specialty input.
Fewer surprisesReview anatomy and limitations before treatment begins.
Conservative confidenceSupport more confident, measured decisions when appropriate.

Start with a clinical scenario below, or use the Estimator tab for practice-volume planning.

Clinical scenarios

Should I CBCT?

Enter a short clinical scenario. The guide looks for common situations discussed in AAE/AAOMR and ADA/AAOMR guidance and returns educational context, not a diagnosis or treatment recommendation.

Evidence that decisions change

Published studies show CBCT can shift clinical understanding.

Part 1

CBCT Utilization Estimator

Estimate how often the cases you already see may match situations where CBCT changed diagnosis or treatment planning in published studies. Scan projections are rounded up to whole scans and are educational estimates, not imaging directives.

How to interpret this estimate

This tool is educational support only. It summarizes literature-supported considerations and practice-volume context. It does not diagnose conditions, recommend treatment, replace formal radiologic interpretation, or replace clinician judgment within the full patient context.

Monthly clinical presentation

Enter each patient once under the main reason CBCT is being considered. The right-hand boxes explain what the published percentage means; they are not separate scan counts.

Referral and treatment setting

Entered indications count toward estimated CBCT use whether the case is treated in your office or referred. The estimate is based on the clinical presentation, not on which services your office provides.

Scan pricing

Scan selection

FOV & Resolution Guidance

Choose the scan size and resolution that match the diagnostic question, patient context, and level of detail needed.

Main principle

Match the scan to the question

CBCT selection should be based on the clinical question and patient-specific factors, consistent with ALADA/ALADAIP principles. The goal is not simply to choose the smallest scan or the highest-resolution scan every time. The goal is to select the field of view and resolution that reasonably answer the clinical question while avoiding unnecessary exposure.

Localized questionSmaller fields of view are often appropriate when the clinical question is localized.
Broader anatomyBroader coverage may be appropriate when the anatomy of interest extends beyond one focused region.
Fine detailHigher resolution may be useful when subtle endodontic, root-surface, or cortical detail is clinically relevant.
Broader anatomyStandard or lower-dose protocols may fit broader anatomy when fine-detail visualization is not the primary objective.

Focus field

Useful when the clinical question is highly localized and fine detail is important.

May fit questions such as

  • Localized endodontic concern
  • Suspected vertical root fracture
  • Localized resorption evaluation
  • Focused periapical assessment
  • High-detail review of a limited anatomical region
  • Localized pre-surgical endodontic assessment

Single jaw

A single-jaw scan may be the practical minimum when implant planning, intraoral scan integration, or guide design needs continuous anatomy across one arch.

Worth considering when

  • Multiple teeth within one arch are being evaluated
  • Implant planning requires regional anatomical context
  • Intraoral scan overlay or surgical guide design is anticipated
  • The anatomy of interest extends beyond a focus field
  • Sinus or mandibular canal relationship must be evaluated within one arch

Dual jaw

Dual-jaw imaging may help preserve anatomical relationship between arches while avoiding unnecessary expansion into a broader cranial scan.

May be useful when

  • Both arches require evaluation together
  • Occlusal or opposing-tooth relationships are clinically relevant
  • Symptoms are difficult to localize between arches
  • Upper and lower anatomy together may improve interpretation
  • Broader restorative or functional relationships must be visualized

5x8 regional scan

A 5x8 FOV refers to approximately 5 cm width by 8 cm height, allowing upper and lower arch anatomy to be captured within a focused regional scan.

A 5x8 regional scan may be useful when the clinician needs focused anatomical detail while still capturing vertically related upper and lower anatomy within one localized region.

Examples

  • Pain that radiates between upper and lower arches
  • Symptoms that are difficult to localize clinically
  • Evaluation involving opposing posterior teeth
  • Localized regional pathology involving both arches
  • A traditional focus field may be too restrictive vertically
  • Regional implant or surgical evaluation involving opposing anatomy

A 5x8 scan may help keep the view focused while still showing upper and lower anatomy in the same region.

Cranial scan

Cranial scans are generally reserved for situations where the clinical question cannot reasonably be answered using a more limited field of view.

May be considered when

  • Airway or broader craniofacial anatomy is relevant
  • Orthodontic evaluation requires broad relationships
  • Broader surgical planning is being evaluated
  • Trauma or larger pathology assessment requires larger coverage
  • Bilateral or multi-regional anatomy must be reviewed together
  • Full craniofacial relationships are clinically relevant

Image detail

Resolution selection

High resolution

May be useful when fine detail may affect interpretation.

  • Fine endodontic detail
  • Suspected vertical root fracture
  • Resorption detail
  • Subtle periapical findings
  • Root morphology or canal anatomy
  • Pre-surgical endodontic planning

Standard resolution

May be appropriate when the diagnostic question is not dependent on the smallest visible detail.

  • Broader anatomy review
  • Implant planning that does not require ultra-fine endodontic detail
  • Sinus, airway, impaction, orthodontic, or larger structural questions

Lower-dose / lower-resolution protocols

Often fit questions involving larger structures rather than subtle fine-detail interpretation.

  • Larger anatomical structures
  • Broader anatomical orientation
  • Airway, sinus, orthodontic, craniofacial, or structural evaluation
  • Patient-specific dose considerations

High resolution is not limited to tiny focus fields

Some CBCT systems restrict high-resolution imaging to very small focus fields. CSD CBCT systems can capture high-resolution datasets across field sizes larger than a traditional localized focus field. This may allow clinicians to see fine detail while still including enough surrounding anatomy to answer the clinical question.

When high resolution may be too much

High-resolution datasets from CSD CBCT systems may contain more detail and larger files than some labs prefer for routine guide fabrication or digital workflows.

Many labs prioritize manageable file size, enough anatomical coverage, efficient workflow, and easier segmentation rather than maximum possible resolution.

A scan optimized for fine clinical review may not always be the ideal dataset for every laboratory workflow. Confirm preferred scan settings, export requirements, file formats, and workflow limits before sending datasets.

This guidance is educational and intended to help align scan selection with the clinical question and ALADA/ALADAIP radiation-safety principles. It does not diagnose, recommend treatment, replace clinician judgment, or determine the correct scan protocol for an individual patient.

Part 4

Artifact Pattern Guide

A quick visual logic guide for deciding whether the finding is likely artifact, anatomy, or disease.

Movement artifact comes first because it is widely recognized as the leading cause of artifacts in dental CBCT scans. Patient motion can create duplicated borders, blur fine anatomy, and make small defects look larger or smaller than they are. Before diagnosing subtle fracture, resorption, dehiscence, or cortical interruption, first ask whether the whole volume shows motion.
ImagePatternTypical appearanceHow to check it
Patient movementHow common? Most commonSame CBCT machine, different patients: motion produces global blur, softer canal borders, and less interpretable trabecular/cortical detail.Compare edges across the whole scan. Motion affects many structures at once, while disease usually follows anatomy.
Beam hardeningHow common? Very commonA black line or band adjacent to dense material. In a canal, it can look like obturation stops short or leaves an unfilled void.Ask whether the dark line follows the curve or contour of the radiopaque material blocking the x-rays. If it tracks the material instead of anatomy, treat it cautiously.
Scatter from metalHow common? Very commonBroad dark bands, bright streaks, or starburst effects radiating from crowns, posts, restorations, or implants.Lower confidence inside the scatter path. Correlate with clinical tests and 2D images before diagnosing cracks or bone loss next to metal.
Noise and limited fine detailHow common? CommonGrainy texture or soft boundaries make subtle root-surface, canal, or cortical findings less certain.Adjust brightness/contrast and decide only from findings that persist across adjacent slices and planes.
Blending artifactaliasing / partial volumeHow common? OccasionalThin structures may appear softened, merged together, interrupted, or less sharply separated than expected.Review nearby slices and multiple planes before deciding a structure is truly missing, fractured, or perforated.
Ring / detector artifactHow common? RareCircular or band-like pattern unrelated to anatomy.Look for the same pattern crossing air, soft tissue, teeth, and bone. Anatomy respects anatomy; detector artifact does not.

Reference

CDT Code Reference

Common CBCT-related CDT codes for educational reference. Codes do not determine medical necessity, guarantee reimbursement, or replace current CDT guidance, payer policy, documentation requirements, or the procedure actually performed.

Reference only. Confirm code selection using current CDT guidance, payer policy, documentation requirements, and the procedure actually performed. Clinical indication, image content, and insurance coverage are separate considerations.

CodeReference description
D0364CBCT capture and interpretation with limited field of view, less than one whole jaw.
D0365CBCT capture and interpretation with field of view of one full dental arch, mandible.
D0366CBCT capture and interpretation with field of view of one full dental arch, maxilla, with or without cranium.
D0367CBCT capture and interpretation with field of view of both jaws, with or without cranium.
D0368CBCT capture and interpretation for TMJ series including two or more exposures.
D0381CBCT image capture and interpretation with field of view of one full dental arch, mandible.
D0382CBCT image capture and interpretation with field of view of one full dental arch, maxilla, with or without cranium.
D0383CBCT image capture with field of view of both jaws, with or without cranium.
D0384CBCT image capture for TMJ series including two or more exposures.

Evidence

Citations Used in This Website

AAE/AAOMR 2025 update. AAE newsroom announcement, January 14, 2026: the update replaces the 2015 statement, condenses recommendations to 12, emphasizes training, ALADAIP, selective use, and patient-specific protocols. Source

ADA/AAOMR patient selection and ADA safety guidance. ADA Oral Health Topic on X-rays/Radiographs, updated March 26, 2026: imaging should follow clinical need, patient selection criteria, ALARA/ALADA principles, and CBCT should be used when lower-exposure imaging will not provide the needed diagnostic information. Source

Applying AAE/AAOMR guidelines in endodontics. JADA 2024 paper in the provided study folder: CBCT was prescribed for 12% of patients, changed periapical diagnosis in 21% of evaluated teeth, and changed, established, or corrected treatment plans in 69% of evaluated cases overall. When available, the calculator uses percentages tied to the specific indication group studied in that paper rather than the overall rate. Study DOI

Impact on endodontic diagnosis. The provided study "The impact of cone beam computed tomography (CBCT) on the choice of endodontic diagnosis" reports diagnosis changes for at least one tooth in 41% of patients and 35% of evaluated teeth. Study DOI

Referral impact in endodontics. The provided study "CBCT assessment of referral reasons and impact on modifying treatment plan in endodontics" reports diagnosis changes in 34.45% in the abstract and major treatment-plan changes in 62.02% of referred endodontic cases. This is retained as referral context, not used as the VRF-specific calculator percentage. Study DOI

Vertical root fracture diagnostic accuracy. Hassan and colleagues report overall diagnostic accuracy of 0.86 for CBCT and 0.66 for periapical radiographs in a laboratory study of vertical root fracture detection in endodontically treated teeth. Study DOI

Impacted canines. The provided 2025 Applied Sciences study reports that 51.5% of extraction decisions made with 2D data changed to orthodontic traction after CBCT review. This is specialty-specific impacted-canine context. Study DOI