Digital X-Ray
Lake Oswego, OR
Digital X-Ray provided by Dr. Carly Petersen in Lake Oswego, OR at The Dentist on Boones Ferry
Most people expect a few X-rays when they visit the dentist, but not everyone knows what's actually happening when that small sensor is placed in their mouth and the machine clicks. Digital X-rays have become the standard of care in dental offices across the country, and for good reason. Understanding what they are, how they're taken, and why they matter can help you feel more prepared and more confident at your next visit with The Dentist on Boones Ferry.How Digital X-Rays Work
Unlike traditional film-based X-rays, which required photographic film to be placed inside the mouth and later developed using chemical solutions, digital X-rays use an electronic sensor to capture images instantly. The sensor connects to a computer, and within seconds, a detailed image of your teeth, roots, and jawbone appears on the monitor. There's no waiting, no darkroom, and no chemical processing involved.The images produced are exceptionally clear and can be magnified, adjusted for contrast, or color-enhanced to make specific features easier to evaluate. Your dentist, Alexa Brightman, DMD, can review them chairside in real time, pointing out areas of concern and explaining findings as they go. That immediate visibility changes the appointment dynamic — rather than receiving a report days later, you're part of the conversation as it happens.
What the Process Feels Like
For most patients, digital X-rays are straightforward and relatively quick. A small sensor or phosphor plate is positioned inside the mouth at a specific angle to capture the area being evaluated. Depending on which type of X-ray is being taken, this may involve biting gently on a small positioning device or holding the sensor still for a moment while the image is captured.
Some patients find intraoral sensors slightly uncomfortable, particularly if they have a strong gag reflex or a smaller mouth. If that's a concern for you, let your dental team know before the appointment begins. There are techniques and alternative positioning methods that can make the process more manageable.
Types of X-Rays You Might Receive
Not every appointment calls for the same imaging. The type of X-ray recommended depends on what your dentist needs to evaluate:
| • | Bitewing X-rays are taken with the patient biting down on a small device and are used to view the upper and lower back teeth simultaneously. They're particularly useful for detecting cavities between teeth and monitoring bone levels. |
| • | Periapical X-rays capture the full length of individual teeth from crown to root tip. These are used to evaluate root structure, surrounding bone, and any signs of infection or abnormality at the root. |
| • | Panoramic X-rays use a rotating arm that moves around the outside of the head to produce a single, wide image of the entire mouth, jaw, and surrounding structures. They're commonly used for new patient evaluations, implant planning, or orthodontic assessments. |
| • | Full-mouth series (FMX) involves a set of multiple X-rays taken together to provide comprehensive coverage of all teeth and bone structures. These are typically taken during a comprehensive dental exam or when a patient hasn't had imaging in several years. |
Your dentist, Carly C. Peterson, DMD, will determine which combination is appropriate based on your health history, age, and the purpose of the visit.
Why Radiation Is Less of a Concern Than You May Think
It's natural to have questions about radiation. Digital X-rays use significantly less radiation than the traditional film-based systems they replaced, making an already low-risk procedure even lower in risk. For context, the exposure from a set of bitewing X-rays is a fraction of the natural background radiation a person encounters on an average day simply from the environment.
That said, dental teams still follow the ALARA principle — "As Low As Reasonably Achievable" — meaning they use the minimum exposure necessary to capture a diagnostic-quality image. Lead aprons and thyroid collars may also be used to provide additional protection, particularly for children, pregnant patients, or anyone who requests them.
What Digital X-Rays Help Your Dentist Find
X-rays reveal information that simply cannot be gathered through a visual exam alone. Because so much of the tooth structure and jaw exists beneath the surface, many conditions are invisible until they've progressed significantly. Digital radiography changes that.
Some of the most common findings that appear on dental X-rays include:
| • | Cavities developing between teeth or beneath existing fillings |
| • | Early-stage bone loss associated with gum disease |
| • | Infections or abscesses forming at the root tip |
| • | Cysts, tumors, or other pathologies developing in the jaw |
| • | Impacted or unerupted teeth, including wisdom teeth |
| • | Changes in root length or bone density over time |
| • | Developmental issues in children, including tooth position and eruption timing |
Detecting these problems early, before they cause pain or visible damage, is one of the most significant advantages of routine imaging. A cavity caught at the surface level is a simple filling. Left undetected, that same cavity may require a root canal or extraction. Early detection directly affects the complexity of treatment.
How Often Are Digital X-Rays Recommended?
The frequency of dental X-rays is not one-size-fits-all. For most adults with good oral health, bitewing X-rays are recommended once a year, while a full-mouth series or panoramic image may be taken every three to five years. Patients with a history of gum disease, frequent cavities, or other ongoing concerns may need imaging more often to monitor changes.
Children typically need X-rays more frequently because their mouths are actively developing, and the spacing and positioning of permanent teeth needs to be tracked. New patients often receive a full-mouth series during their initial exam to establish a baseline record.
Schedule Your Visit with The Dentist on Boones Ferry
If it's been a while since your last dental X-rays, or you're overdue for a checkup, The Dentist on Boones Ferry is here to help. Our team uses digital imaging to give you the clearest, most accurate picture of your oral health — and we're happy to answer any questions about the process before we begin. Call us today at (971) 377-1208 to schedule your appointment.
