Dental X-Rays & Imaging in Townsville

What Are Dental X-Rays?

Dental X-rays (radiographs) are diagnostic images that allow dentists to see structures inside and between teeth, within the jawbone, and beneath the gum line that are not visible during a standard examination. They are essential for detecting decay between teeth, bone loss from gum disease, infections at root tips, cysts, tumours, and impacted teeth. According to the Australian Dental Association, up to 40 per cent of tooth surfaces cannot be examined visually, making X-rays critical for comprehensive diagnosis (ADA, Policy Statement on Dental Radiography, 2020). Digital X-ray technology, now standard at Townsville Dental Clinic, reduces radiation exposure by up to 90 per cent compared to traditional film while producing higher-quality images that can be enhanced and magnified on screen. For patients across Townsville and North Queensland, digital imaging ensures accurate, early diagnosis with the lowest possible radiation dose.

What Types of Dental X-Rays Are Available?

Periapical X-Rays

Capture the entire tooth from crown to root tip, including the surrounding bone. Used to detect infections, abscesses, cysts, fractures, and bone loss around individual teeth.

Bitewing X-Rays

Show the upper and lower back teeth in a single image, focusing on the area where teeth contact each other. The most common X-ray for detecting decay between teeth and monitoring the fit of existing restorations.

OPG (Orthopantomogram) Panoramic X-Ray

A single image that captures the entire upper and lower jaw, all teeth, the temporomandibular joints (TMJ), and the maxillary sinuses. Used for comprehensive assessment, wisdom teeth evaluation, orthodontic planning, and dental implant assessment.

CBCT (Cone Beam Computed Tomography)

A three-dimensional imaging scan that provides detailed cross-sectional views of teeth, bone, nerve pathways, and soft tissue. Used for complex implant planning, surgical assessment, and diagnosing conditions that require three-dimensional visualisation.

Digital X-Rays vs Traditional Film X-Rays

Townsville Dental Clinic uses exclusively digital imaging technology for all diagnostic X-rays.

When Are Dental X-Rays Needed?

Your dentist may recommend X-rays in the following situations:

• Routine checkups — bitewing X-rays every 12 to 24 months to detect early decay between teeth
• New patient assessment — a comprehensive set of X-rays to establish a baseline of your oral health
• Tooth pain or sensitivity — to identify the cause, such as decay, infection, or fracture
• Gum disease evaluation — to assess bone levels around the teeth
• Wisdom teeth assessment — OPG to determine position, angulation, and proximity to nerves
• Dental implant planning — OPG or CBCT for precise bone measurement and nerve mapping
• Orthodontic assessment — OPG and lateral cephalometric images for treatment planning
• Trauma — to assess damage after an injury to the teeth or jaw
• Monitoring treatment — to check the progress of root canal therapy, implant healing, or orthodontic movement

How Safe Are Dental X-Rays?

Dental X-rays deliver an extremely low dose of radiation. To put this in perspective:

1. Single periapical X-ray — 0.005 mSv (less than one day of natural background radiation)
2. Bitewing series (4 images) — 0.02 mSv (equivalent to 2-3 days of background radiation)
3. OPG panoramic — 0.01 to 0.02 mSv (equivalent to 1-2 days of background radiation)
4. CBCT scan — 0.03 to 0.2 mSv (depending on field of view, still significantly less than a medical CT)

By comparison, a standard chest X-ray delivers approximately 0.02 mSv, and the average Australian receives about 1.5 mSv of background radiation per year from natural sources (ARPANSA, 2022).

At Townsville Dental Clinic, we follow the ALARA principle (As Low As Reasonably Achievable) and only recommend X-rays when the diagnostic benefit clearly justifies the minimal exposure. Every patient is provided with a lead apron and thyroid collar during imaging.

What Can Dental X-Rays Detect?

• Decay between teeth — cavities hidden between contact points that cannot be seen visually
• Bone loss — reduction in the bone supporting the teeth, indicating periodontal disease
• Infections and abscesses — dark areas at the root tips indicating infection
• Impacted teeth — teeth that are trapped within the jawbone, most commonly wisdom teeth
• Cysts and tumours — abnormal growths within the jawbone
• Fractures — cracks in teeth or the jawbone
• Developmental abnormalities — missing, extra, or malformed teeth in children

Research published in the Australian Dental Journal (2018) found that bitewing X-rays detected 30 to 50 per cent more interproximal (between-teeth) cavities than visual examination alone, confirming their essential role in early diagnosis.

Why Choose Townsville Dental Clinic for Dental X-Rays and Imaging?

Townsville Dental Clinic provides advanced digital imaging and diagnostic services to patients across Townsville, Aitkenvale, Kirwan, and the wider North Queensland region. Our modern digital X-ray systems deliver high-resolution images at a fraction of the radiation dose of traditional film, ensuring accurate diagnosis with maximum safety. Every image is reviewed on screen with you so that you understand your oral health and can make informed decisions about your care.

Related Services

• Dental Checkups & Cleaning
• Preventive Dentistry

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