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Oral Exam and Diagnosis: Code D0120

An evaluation performed on a patient to determine any changes in the patient’s dental and medical health status since a previous comprehensive or periodic evaluation. This includes an oral cancer evaluation and periodontal screening where indicated, and may require interpretation of information acquired through additional diagnostic procedures.


If you live in Southern California feel free to Schedule a New Patient Visit with us in Zak Dental offices in Agoura Hills, Covina/San Dimas, Downey, Long Beach, North Park, San Diego, Santa Barbara, Simi Valley, Temecula, Valencia, Ventura, and Whittier/La Mirada, California.

For all your dental needs, schedule an appointment by calling the Zak Dental office at 833-ZAK-TEAM.


Here are some frequently asked questions (FAQs) about oral exams and diagnosis in dentistry:

What is an oral exam?

An oral exam is a thorough examination of the mouth, teeth, and surrounding structures performed by a dentist. It is a comprehensive assessment of oral health, including the detection of dental issues and the evaluation of overall oral hygiene.

Why is an oral exam important?

Oral exams are essential for maintaining good oral health. They help identify dental problems early, allowing for prompt treatment and prevention of more severe issues. Regular oral exams also play a crucial role in preventive care.

How often should one have an oral exam?

The frequency of oral exams varies based on individual needs and oral health conditions. In general, a routine oral exam is recommended at least once a year. However, your dentist may recommend more frequent exams based on your oral health history.

What happens during an oral exam?

During an oral exam, the dentist will visually inspect the teeth, gums, tongue, and other oral tissues. X-rays may be taken to assess areas not visible to the naked eye. The dentist may also check for signs of cavities, gum disease, oral cancer, and other oral health issues.

Is an oral exam painful?

An oral exam is typically painless. The dentist may use tools such as a mirror and probe to examine the teeth and gums, but these procedures are not inherently painful. If you experience discomfort, it’s essential to communicate with your dentist.

Can an oral exam detect oral cancer?

Yes, oral exams are crucial for the early detection of oral cancer. Dentists are trained to identify suspicious lesions or abnormalities in the mouth that may require further investigation.

What is the role of X-rays in an oral exam?

X-rays provide a detailed view of the teeth, jawbone, and surrounding structures that may not be visible during a visual examination. They help in diagnosing issues such as cavities, impacted teeth, and bone abnormalities.

How long does an oral exam take?

The duration of an oral exam varies but typically takes around 30 minutes to an hour. The time may be influenced by the complexity of the examination, the need for X-rays, and the presence of specific dental concerns.

Can an oral exam reveal general health issues?

While the primary focus is on oral health, some systemic health conditions may manifest symptoms in the mouth. Dentists may identify signs of conditions like diabetes or vitamin deficiencies during an oral exam.

Is an oral exam covered by dental insurance?

Oral exams are generally covered by dental insurance as part of preventive care. However, coverage details may vary, and it’s advisable to check with your insurance provider to understand the specifics.

Remember that individual experiences may vary, and it’s essential to consult with your dentist for personalized information and advice based on your specific oral health needs.