Not every dental problem can be seen with the naked eye. Cavities between teeth, infection near the root, bone loss, impacted teeth, and problems under old dental work may be hidden during a visual exam. At Financial District Dentistry, we use dental X-rays in San Francisco to help diagnose problems early and create more accurate treatment plans.

Our current digital X-rays page explains that X-rays are used to examine the inside of your teeth, helping the team catch problems that cannot be seen visually, including developing cavities and gum areas that may need additional care.

Financial District Dentistry
220 Montgomery St. Suite 120
San Francisco, CA 94104
Phone: (415) 399-9999

We serve patients throughout the Financial District, SoMa, Embarcadero, Union Square, Chinatown, Nob Hill, North Beach, Mission Bay, and downtown San Francisco.

Request an Appointment

What Are Dental X-Rays?

Dental X-rays, also called dental radiographs, are diagnostic images that allow your dentist to see teeth, roots, bone, and supporting structures that are not fully visible during a routine dental exam.

The FDA explains that dental radiographs help dentists evaluate and diagnose many oral diseases and conditions, and that imaging recommendations are designed to support clinical judgment while minimizing radiation exposure.

Dental X-rays can help your dentist evaluate:

  • Cavities between teeth

  • Tooth decay under old fillings or crowns

  • Bone levels around teeth

  • Gum disease progression

  • Dental infections or abscesses

  • Tooth root shape and position

  • Impacted teeth

  • Wisdom teeth

  • Jawbone health

  • Dental trauma

  • Implant planning areas

  • Root canal concerns

  • Children’s tooth development

Digital dental imaging helps your dentist find problems earlier, often before pain or visible damage appears.

Why Dental X-Rays Are Important

A visual exam is essential, but it cannot show everything. Dental X-rays give your dentist a clearer view beneath the surface.

X-rays may help detect:

Concern Why X-Rays Matter
Cavities between teeth These areas are difficult to see visually
Tooth infection X-rays can show changes around the root
Bone loss Supports diagnosis and monitoring of gum disease
Impacted teeth Helps identify teeth trapped under gum or bone
Cracked or damaged teeth May reveal deeper structural problems
Failed dental work Helps evaluate crowns, bridges, fillings, and implants
Root canal issues Shows tooth roots and surrounding bone
Oral surgery needs Supports extraction and implant planning

The ADA’s patient education site states that dental X-rays use very low doses of radiation and that modern X-ray tools and techniques are designed to limit exposure.

Digital Dental X-Rays vs. Traditional Film X-Rays

Digital X-rays have become a common part of modern dentistry because they provide fast, detailed images with efficient storage and sharing.

Benefits of digital dental X-rays include:

  • Immediate image viewing

  • Clear diagnostic images

  • Less waiting during appointments

  • Easier image enlargement and enhancement

  • Digital record storage

  • Easier comparison with past images

  • No chemical film processing

  • Helpful planning for crowns, implants, root canals, and oral surgery

The ADA notes that radiation doses in dental imaging are much lower now than in the past because of advances in technology.

Are Dental X-Rays Safe?

Dental X-rays use low levels of radiation, and dentists follow safety recommendations to use imaging only when it is clinically appropriate.

The ADA states that dental X-rays emit very low doses of radiation, making the risk of potentially harmful effects very small. ADA experts still recommend using X-rays in moderation to reduce unnecessary exposure.

How dentists help limit radiation exposure:

  • Taking X-rays only when clinically needed

  • Using digital imaging when appropriate

  • Selecting the right type of X-ray for the concern

  • Limiting the image area to what needs evaluation

  • Reviewing recent X-rays before ordering new ones

  • Following professional radiographic guidelines

The ADA’s 2026 guidance emphasizes that dentists should refer to ADA/FDA patient-selection recommendations when determining the clinical need for diagnostic imaging.

When Do You Need Dental X-Rays?

Dental X-rays are not taken on the same schedule for every patient. Your dentist recommends them based on symptoms, oral health history, cavity risk, gum health, age, treatment needs, and previous images.

The FDA states that dental radiographic guidelines are designed as an adjunct to the dentist’s professional judgment for each patient.

Your dentist may recommend X-rays if you have:

  • Tooth pain

  • A suspected cavity

  • Swollen gums

  • Dental trauma

  • A cracked or broken tooth

  • A loose filling or crown

  • Signs of gum disease

  • A dental abscess

  • Wisdom tooth concerns

  • A root canal evaluation

  • Missing teeth

  • Implant planning needs

  • Orthodontic or bite concerns

  • New patient exam needs

Patients with frequent cavities, gum disease, dental implants, complex restorations, or a history of dental infection may need imaging more often than low-risk patients.

Types of Dental X-Rays

Different types of dental X-rays show different parts of the mouth. Your dentist chooses the image based on what needs to be evaluated.

Bitewing X-Rays

Bitewing X-rays show the upper and lower back teeth together. They are commonly used to detect cavities between teeth and monitor bone levels.

Periapical X-Rays

Periapical X-rays show the full tooth from crown to root tip. They are often used for tooth pain, infection, abscesses, root canal concerns, and trauma.

Panoramic X-Rays

A panoramic X-ray shows the entire mouth, including teeth, jaws, sinuses, and temporomandibular joint areas. It may be used for wisdom teeth, missing teeth, implants, or broader jaw evaluation.

Full-Mouth Series

A full-mouth X-ray series provides a detailed view of all teeth and supporting bone. It may be recommended for new patients, patients with extensive dental needs, or patients with periodontal concerns.

3D Dental Imaging

In some cases, 3D imaging may be recommended for complex dental implant planning, oral surgery, impacted teeth, or detailed jaw evaluation.

What Can Dental X-Rays Detect Before Symptoms Appear?

Many dental problems develop quietly. By the time pain appears, treatment may be more complex.

Digital X-rays may help find:

  • Early cavities between teeth

  • Decay under crowns or fillings

  • Bone loss from gum disease

  • Infection around root tips

  • Impacted wisdom teeth

  • Cysts or unusual jaw changes

  • Tooth root problems

  • Hidden fractures

  • Dental development concerns

  • Poorly fitting restorations

Early diagnosis can help reduce the need for emergency care, root canals, extractions, or more extensive restorative treatment.

Dental X-Rays for Cavity Detection

Cavities commonly form between teeth, where toothbrush bristles cannot fully reach and where early decay may be hidden from view. Bitewing X-rays are often used to detect these cavities before the tooth breaks down or becomes painful.

Financial District Dentistry’s digital X-ray page specifically notes that radiology can help show which teeth are developing cavities.

Dental X-Rays for Gum Disease

Dental X-rays help your dentist evaluate the bone that supports your teeth. This is important because gum disease can damage bone over time.

X-rays may help assess:

  • Bone loss around teeth

  • Tartar below the gumline

  • Loose teeth

  • Periodontal infection

  • Tooth support before treatment

  • Changes over time during periodontal maintenance

For patients with bleeding gums, loose teeth, gum recession, or a history of periodontal disease, X-rays can be an important part of diagnosis and monitoring.

Dental X-Rays for Root Canal and Tooth Infection Diagnosis

If you have severe tooth pain, swelling, lingering sensitivity, or a pimple-like bump on the gums, an X-ray may help identify infection around the tooth root.

Dental X-rays can support diagnosis for:

  • Root canal therapy

  • Dental abscesses

  • Cracked teeth

  • Deep decay

  • Failed root canal concerns

  • Infection around old crowns or fillings

This helps your dentist decide whether the tooth can be saved with root canal therapy or whether extraction may be necessary.

Dental X-Rays for Dental Implants and Oral Surgery

Dental implants and oral surgery require careful planning. Imaging helps your dentist evaluate bone support, tooth position, root shape, and nearby structures.

X-rays may be used before:

  • Tooth extractions

  • Wisdom tooth removal

  • Dental implant placement

  • Bone grafting

  • Bridge or denture planning

  • Full mouth reconstruction

  • Evaluation of dental trauma

Clear imaging supports safer, more predictable treatment planning.

How Often Should You Get Dental X-Rays?

There is no single X-ray schedule that applies to every patient. Some patients may need X-rays more frequently, while others may need them less often.

Frequency depends on:

  • Age

  • Cavity risk

  • Gum health

  • Symptoms

  • Existing dental work

  • New patient status

  • Recent dental trauma

  • History of tooth decay

  • Root canal or implant needs

  • Last available X-rays

  • Dentist’s clinical findings

The ADA’s 2026 recommendations state that dental imaging should be used based on patient selection and clinical need rather than routine administrative requests.

Do Dental X-Rays Hurt?

No. Dental X-rays are quick and painless. Depending on the type of image, you may bite gently on a small sensor or stand still while a panoramic machine moves around your head.

If you have a small mouth, sensitive gag reflex, jaw discomfort, or dental anxiety, let the team know. Digital sensors and careful positioning can help make the process more comfortable.

Are Dental X-Rays Safe During Pregnancy?

Dental care can be important during pregnancy, especially if you have pain, infection, swelling, or gum problems. Dental X-rays may be recommended when they are needed for diagnosis or treatment.

The ADA states that dental X-rays emit very low doses of radiation and that tools and techniques are designed to limit exposure. Tell your dentist if you are pregnant or may be pregnant so your care can be planned appropriately.

Why Choose Financial District Dentistry for Digital Dental X-Rays?

Modern Dental Technology

Financial District Dentistry’s sitemap lists Digital X-Rays in San Francisco as part of its dental technology services, along with intraoral cameras, iTero® intraoral scanning, and laser dentistry.

Comprehensive Downtown Dental Care

The practice provides comprehensive care to meet oral health needs, supporting both the aesthetics and function of the smile. Digital X-rays help support preventive, restorative, cosmetic, periodontal, implant, root canal, oral surgery, and emergency dental care.

Convenient Financial District Location

Financial District Dentistry is located at 220 Montgomery St. Suite 120, San Francisco, CA 94104, making care convenient for patients who live or work near Montgomery Street, Embarcadero, SoMa, Union Square, Chinatown, Nob Hill, North Beach, and Mission Bay.

Personalized Diagnosis and Treatment Planning

X-rays are not simply images. They are diagnostic tools used with your exam, symptoms, history, and goals to create a treatment plan that fits your needs.

Cost of Dental X-Rays in San Francisco

The cost of dental X-rays in San Francisco depends on the type of image, number of images, whether they are part of a dental exam, and insurance benefits.

Cost may vary based on:

  • Bitewing X-rays

  • Periapical X-rays

  • Panoramic X-rays

  • Full-mouth X-ray series

  • 3D imaging needs

  • New patient exam requirements

  • Emergency dental visit needs

  • Dental insurance coverage

For personalized cost and insurance questions, call (415) 399-9999.

When to Schedule a Dental X-Ray Evaluation

Schedule a visit if you have:

  • Tooth pain

  • Tooth sensitivity

  • Swollen gums

  • Bleeding gums

  • A broken tooth

  • A loose crown or filling

  • Bad taste or drainage near a tooth

  • A missing tooth

  • Wisdom tooth pain

  • A dental implant consultation

  • A root canal concern

  • A dental emergency

  • It has been a long time since your last dental exam

Early imaging can help identify problems while they are still easier to treat.

Schedule Digital Dental X-Rays in San Francisco

If you need a dental exam, tooth pain diagnosis, cavity check, implant consultation, emergency evaluation, or treatment planning, Financial District Dentistry can help with digital dental X-rays in downtown San Francisco.

Call (415) 399-9999 or request an appointment today.

Financial District Dentistry
220 Montgomery St. Suite 120
San Francisco, CA 94104
Phone: (415) 399-9999

Frequently Asked Questions

What are dental X-rays used for?

Dental X-rays help dentists see teeth, roots, bone, and structures that are not fully visible during a visual exam. They may be used to detect cavities, infections, bone loss, impacted teeth, root problems, and issues under old dental work.

Are dental X-rays safe?

Yes. Dental X-rays use very low doses of radiation, and modern tools and techniques are designed to limit exposure. The ADA recommends using X-rays in moderation and only when clinically appropriate.

How often do I need dental X-rays?

It depends on your oral health, cavity risk, gum health, symptoms, age, treatment needs, and previous X-rays. Some patients need them more often than others.

Do dental X-rays hurt?

No. Dental X-rays are quick and painless. You may need to bite on a small sensor or stay still for a short time while the image is taken.

Can dental X-rays detect cavities?

Yes. Dental X-rays can help detect cavities between teeth and under restorations, including problems that may not be visible during a routine exam.

Are digital dental X-rays better than traditional X-rays?

Digital X-rays allow quick image viewing, digital storage, easier enhancement, and efficient comparison with previous images. They are widely used in modern dentistry.

Can I get dental X-rays if I am pregnant?

Tell your dentist if you are pregnant or may be pregnant. Dental X-rays may be recommended when clinically necessary, especially for pain, infection, or urgent dental problems.

Where can I get digital dental X-rays in downtown San Francisco?

Financial District Dentistry provides digital dental X-rays at 220 Montgomery St. Suite 120, San Francisco, CA 94104. Call (415) 399-9999 to schedule an appointment.