How to Choose the Right CBCT Field of View for Your Practice

One of the first specifications you'll notice when shopping for a CBCT system is field of view (FOV).

Manufacturers often promote multiple field-of-view options, larger scan volumes, and expandable imaging capabilities. At first glance, it might seem logical to assume that bigger is always better.

In reality, that's rarely the case.

Choosing the right field of view isn't about capturing the largest scan possible—it's about capturing the anatomy you need for the procedure you're performing.

Selecting the appropriate FOV can improve diagnostic accuracy, reduce radiation exposure, streamline your workflow, and help ensure you're investing in the right imaging system for your practice.

So how do you decide?

Let's start with the basics.

What Is Field of View?

Field of view refers to the three-dimensional volume captured during a CBCT scan.

Think of it as the size of the digital "window" you're looking through.

A small field of view captures a focused area, while a large field of view includes much more of the patient's anatomy.

Most CBCT systems fall into one of three general categories:

Small FOV

Typically up to 6 × 6 cm

Ideal for highly localized imaging.

Medium FOV

Approximately 8 × 8 cm to 10 × 10 cm

A versatile choice for many general dental procedures.

Large FOV

Typically 12 × 10 cm and larger

Designed to capture broader anatomical structures, including both jaws and surrounding facial anatomy.

Exact dimensions vary by manufacturer, but understanding the intended clinical use is far more important than memorizing measurements.

Bigger Isn't Always Better

One of the biggest misconceptions about CBCT imaging is that purchasing the largest available field of view automatically provides the greatest value.

Not necessarily.

A larger scan captures more anatomy—but it also creates larger datasets, may expose more tissue than necessary for certain procedures, and often includes information that isn't clinically relevant for the case at hand.

Many modern CBCT systems allow clinicians to select different fields of view depending on the procedure.

That flexibility can provide the best of both worlds.

Next, we'll cover recommended FOV by specialty/application.

Best FOV for General Dentistry

General dentists often perform a wide variety of procedures.

A medium field of view tends to provide the greatest versatility because it supports:

• Implant planning
• Surgical extractions
• Comprehensive restorative treatment
• Multiple-quadrant evaluations
• Basic orthodontic assessments

Practices that expect to expand implant services or treat more complex cases may benefit from systems offering multiple selectable fields of view.

Best FOV for Endodontics

Endodontists typically prioritize image detail over scan size.

A small field of view offers several advantages:

• Excellent visualization of root canal anatomy
• Detection of vertical root fractures
• Identification of accessory canals
• Evaluation of periapical pathology
• Reduced radiation exposure

Because imaging is focused on a limited region, small FOV scans often provide the level of detail endodontists need while minimizing unnecessary anatomy.

Best FOV for Orthodontics

Orthodontic treatment planning often requires viewing the entire craniofacial complex.

Many orthodontic practices benefit from a medium or large field of view, particularly when evaluating:

• Impacted teeth
• Skeletal relationships
• Airway anatomy
• Facial asymmetry
• Cephalometric records
• Growth and development

Practices that routinely perform airway analysis or comprehensive orthodontic treatment planning often prefer systems capable of larger scan volumes.

Best FOV for Oral Surgery

Oral surgeons frequently need broader anatomical visualization.

A large field of view is commonly used for:

• Full-arch implant planning
• Multiple implant sites
• Wisdom tooth surgery
• Pathology evaluation
• Trauma cases
• Comprehensive surgical planning

The ability to visualize adjacent anatomical structures often improves treatment planning and surgical confidence.

Best FOV for Pediatric Dentistry

Pediatric dentists often have unique imaging considerations.

Many practices rely on small or medium fields of view, depending on the clinical indication.

Choosing the smallest field necessary for diagnosis aligns with the principle of minimizing radiation exposure while still obtaining the information needed for treatment planning.

Should You Choose a Machine with Multiple FOV Options?

For many practices, the answer is yes.

Systems that offer selectable fields of view provide flexibility as your practice evolves.

For example:

• Small scans for endodontic cases
• Medium scans for implants
• Large scans for orthodontic evaluations

Instead of purchasing different machines for different procedures, a configurable CBCT allows clinicians to tailor imaging to each patient and indication.

If you anticipate expanding your services in the coming years, this flexibility can be a significant advantage.

Questions to Ask Before Choosing an FOV

Before selecting a CBCT system, consider these questions:

• What procedures do I perform most often?
• Which procedures do I plan to add?
• Do I place implants?
• Do I perform complex endodontics?
• Will I offer airway evaluations?
• Do I need cephalometric imaging?
• Will additional providers use the system?
• Is practice expansion part of my long-term plan?

Your answers will often point you toward the most appropriate field of view.

Field of View Is Only One Piece of the Puzzle

While FOV is an important consideration, it shouldn't be the only factor driving your decision.

Also evaluate:

• Image quality
• Software capabilities
• Workflow integration
• Reliability
• Service support
• Warranty
• Long-term ownership costs

The right imaging system combines all of these elements—not just the largest scan volume.

Final Thoughts

Choosing the right field of view isn't about buying the biggest machine available.

It's about investing in technology that supports the dentistry you practice today while providing flexibility for tomorrow.

For many general practices, a medium field of view offers an excellent balance of versatility and efficiency.

Specialists may benefit from smaller or larger scan volumes depending on their clinical focus, while practices anticipating growth often appreciate systems with multiple selectable FOV options.

The goal isn't simply to capture more anatomy.

It's to capture the right anatomy for every patient, every procedure, and every stage of your practice's growth.