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Radiographs as a Diagnostic Tool in Dentistry

January 8, 2018

Although some people dislike the idea of ‘x-rays’ at the dentist, radiographs are one of the key diagnostic tools for determining someone’s overall oral health. This month’s blog will investigate the different types of radiographs that are taken, why they take them, and the importance of them for diagnosing oral disease.


Generally, when patients first come to an office, a comprehensive set of radiographs is taken. Depending on the patient’s age and oral condition, that could consist of a Full Mouth Series (FMX) or Panoramic radiographs. A FMX series consists of about 18 radiographs that examines each tooth at different angles to search for the present of decay or periodontal disease. Panoramic radiographs give a more widespread view of the mouth, but sometimes do not give as detailed of a picture of individual tooth problems. When patients are younger, generally a Panoramic radiograph can provide good imaging of erupting teeth and whether any are missing or impacted.


Once these full sets are taken, they do not need to be retaken for about 5-7 years unless a patient has a new problem. Usually, they just have Bitewing radiographs updated every 12-24 months depending on the rate of tooth decay they get. Bitewings are a set of four radiographs that go straight through the teeth and are usually most useful when trying to diagnose cavities. Dentists can see the exterior enamel layer, inner dentin, and the pulp (nerve/blood vessel) of the teeth. Also usually the supporting bone level and existing fillings/crowns/implants can be viewed.


Many patients have a sense of trepidation about taking dental radiographs. They are usually worried about the amount of radiation they may absorb. While this is a valid concern, sometimes people do not understand the exact amount of radiation they are experienced to every day. The below chart takes different dental radiographs and compares them to the amount of background radiation people receive from everyday life. ‘Background radiation’ comes from many sources – from food/water, occupational exposure, and even substances that are commonly found in homes. From the comparison – the amount of radiation from even a FMX or panoramic radiograph is equivalent of only several days of regular background radiation.


If there is ever any concern about the radiographs being taken at the office, please feel free to speak to your dentist or hygienist about the reasoning behind them. Obviously excess exposure is never a good thing, but they can also be keys to diagnosing oral problems early on before they can worsen. Hopefully this served as an informative source for the types of dental radiographs and why they are necessary.

February 4, 2025
Preventative dental care is a proactive approach to maintaining oral health by preventing diseases and addressing potential issues before they become serious. It involves regular dental check-ups, cleanings, and other preventive measures that help keep teeth and gums healthy. This form of care is essential as it allows for early detection of dental problems, which can prevent more severe conditions such as gum disease and tooth decay. Regular check-ups can identify issues like cavities, misalignment, and oral cancer at an early stage, making them easier and less costly to treat. The economic benefits of preventative dental care are significant. By addressing issues early, patients can avoid expensive treatments in the future. A study published by the American Dental Association highlights that investing in preventative care can lead to substantial cost savings over time. Routine Cleanings: A Cornerstone of Oral Health Routine dental cleanings are vital for removing plaque and tartar buildup that cannot be eliminated by regular brushing and flossing alone. These cleanings play a crucial role in preventing gum disease and tooth decay. During a cleaning, dental hygienists use specialized tools to clean areas that are difficult to reach with a toothbrush, ensuring a thorough cleanse of the oral cavity. Dental professionals generally recommend that individuals have their teeth cleaned every six months, although this frequency may vary based on individual needs and risk factors. According to Dr. Marcos Montoya of Stephens Dentistry, "Regular cleanings are an essential part of maintaining oral health. They help prevent serious dental issues and keep your smile bright and healthy." The Role of Sealants and Fluoride Treatments Dental sealants and fluoride treatments are effective preventative measures that protect teeth from decay. Sealants are thin, protective coatings applied to the chewing surfaces of the back teeth, where decay often starts. They act as a barrier, preventing food particles and bacteria from settling into the grooves of the teeth. Fluoride treatments involve the application of fluoride to the teeth to strengthen enamel and make it more resistant to decay. These treatments are beneficial for both children and adults, particularly those with a higher risk of cavities. According to the Centers for Disease Control and Prevention , fluoride is highly effective in preventing cavities. Tips for Maintaining Oral Hygiene at Home Maintaining oral hygiene at home is crucial for overall dental health. Daily practices such as brushing twice a day and flossing once a day are fundamental. Using tools like electric toothbrushes and water flossers can enhance cleaning by reaching areas that traditional brushes might miss. A balanced diet also plays a significant role in supporting oral health. Foods rich in calcium and phosphorus, such as dairy products and leafy greens, help strengthen teeth. Conversely, limiting sugar intake and avoiding smoking can prevent decay and gum disease. Lifestyle habits have a profound impact on oral health. Smoking and excessive sugar consumption can lead to serious dental issues, including cavities and periodontal disease. By adopting healthy habits, individuals can significantly reduce their risk of dental problems. Common Misconceptions About Dental Prevention Several misconceptions surround dental prevention. One common myth is that only sugary foods cause cavities. While sugar is a major contributor, acidic foods and poor oral hygiene can also lead to decay. Another misconception is that dental visits are unnecessary if there is no pain or visible issue. Regular check-ups are essential for detecting hidden problems that may not yet cause discomfort. Some individuals believe that home remedies can replace professional treatments. While good home care is important, it cannot substitute for professional dental services. Personalized advice from dental professionals is crucial, as they can provide tailored recommendations based on individual needs. The Local Perspective: Dental Care in Evanston and Surrounding Areas In Evanston and surrounding areas like Skokie, Highland Park, Wilmette, and Winnetka, local dental practices emphasize the importance of preventative care . Stephens Dentistry , a prominent practice in the region, has been committed to patient-focused care since 1959, offering a range of services that prioritize prevention. Community initiatives and local programs often promote dental health awareness, encouraging residents to prioritize their oral health. Cultural attitudes towards dental care in these areas reflect a growing recognition of the importance of prevention, with many individuals actively seeking regular dental services. Access to dental care facilities in Evanston and its neighboring regions is generally good, with practices like Stephens Dentistry providing comprehensive services to ensure the community receives the care it needs. By focusing on prevention, these practices help residents maintain healthy smiles and avoid costly treatments in the future.
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