X-rays in Dentistry

Let’s talk about radiography(x-rays) in dentistry. Why do we need x-rays in dentistry? These tools help the dentist with the diagnosis and treatment planning of the patient’s dental issues.

Uses of dental X-rays:

-to diagnose cavities

-identify the broken or crooked roots of teeth

-view the bone health or periodontal disease around the teeth

-identify the status of developing tooth

-monitoring the oral dentition health

There are several types of x-rays routinely used and categorized into the intraoral and extraoral radiograph. Intraoral x-rays include: Periapical radiograph(PA), bite-wing, occlusal x-rays. The extraoral x-rays are: Panaromic x-rays (Orthopantomagram(OPG), lateral cephalogram) and computed tomography (cone beam CT(CBCT)).

Intraoral Radiography:

• 1.  Periapical x-rays

 

• 2.       Bite-wings x-rays
• 

• 3.       Occlusal x-rays

Extraoral Radiography:

• 1.       Panaromic X-rays
• a)       Orthopantomogram (OPG)

 

• b)      Lateral cephologram

 

• 2.       Computed tomography (CBCT)

-produce three-dimensional images of the teeth and jaw bones.

Concerns of dental x-rays:

Dental x-rays emit a small dose of radiation (0.0005-0.2mSv) and represents a minor contribution to the total exposure of natural and man-made sources. These are used with caution and used only when necessary. 

 Steps taken to reduce the radiation exposure includes:

-wearing of lead shields or apron before getting x-rays

-using better film (F-speed film which is the fastest film can limit the amount of radiation)

-digital radiography (reduces the amount of radiation as much as 80%)

- having regular inspection and licensing (to ensure the X-ray machines are safe and accurate)

-using film holders (prevents exposure to fingers holding the film in the mouth)

 

X-rays during pregnancy

Most of the pregnant patients concern about the safety of taking x-rays during pregnancy. American Dental Association (ADA) recommends the use of aprons with thyroid shields for pregnant patients. Studies of pregnant patients receiving dental care have affirmed the safety of dental treatment.

X-rays in children

Besides that, many patients are worried if x-rays are safe for their children. The American Academy of Pediatric Dentistry reassures parents that the amount of radiation received during a dental X-ray is extremely small. Nowadays, X-ray equipment lets dentists focus the X-ray beam on the area of interest to reduce radiation exposure. 

 

 In conclusion, dental x-rays have many important uses. The ADA encourages dentists and patients to discuss dental treatment recommendations, including the need for X-rays, to make informed decisions together. If you are concerned about dental x-rays do consult your dentist to seek for further advice.