Bitewings
The exam that detects cavities between teeth
Bitewings are interproximal X-rays designed to detect cavities between the back teeth, in areas that cannot be assessed by the clinical eye alone.
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Images per complete routine examination
A routine bitewing examination consists of four X-rays: two of the molar region and two of the premolar region.
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Less radiation than the analogue method
The digital bitewing X-rays used at our clinic emit up to 70% less radiation than conventional radiographic film.
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Total duration of the full exam
The bitewing X-ray takes about two minutes. It is quick, simple, and completely painless for the patient.
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Screening for hidden cavities
Bitewings are considered the standard test for the early detection of interproximal cavities during routine dental visits.
0
Images per complete routine examination
A routine bitewing examination consists of four X-rays: two of the molar region and two of the premolar region.
0%
Less radiation than the analogue method
The digital bitewing X-rays used at our clinic emit up to 70% less radiation than conventional radiographic film.
0min
Total duration of the full exam
The bitewing X-ray takes about two minutes. It is quick, simple, and completely painless for the patient.
0No.
Screening for hidden cavities
Bitewings are considered the standard test for the early detection of interproximal cavities during routine dental visits.
What are bitewing X-rays and what are they used for?
Bitewings, also known as interproximal X-rays, are a type of intraoral examination specifically designed to visualise the crowns of the posterior teeth — premolars and molars — in both the upper and lower arches in a single image.
The name "bitewing" derives from the small "bite wing" that the patient bites down on to stabilise the film or sensor during the examination.
This is the gold-standard radiographic examination for the early detection of interproximal caries — cavities that develop on the lateral surfaces of the teeth, in the contact areas between adjacent teeth.
These cavities are virtually impossible to identify with the naked eye during a conventional clinical examination.
At Clínica Dr. Paulo Cardozo in Benavente, we use digital bitewings that provide high-resolution images with significantly lower radiation doses.
In addition to detecting caries, bitewings are also used to assess the fit of existing restorations, check for subgingival calculus, and monitor the health of the alveolar bone crests — making them an important complement to the panoramic X-ray.
“Bitewing X-rays are our greatest ally in prevention. They allow us to detect cavities at such an early stage that, in many cases, we can treat the tooth conservatively, avoiding more extensive interventions in the future.”
How bitewing X-rays work
The bitewing examination is quick, comfortable, and particularly useful during routine appointments. At Clínica Dr. Paulo Cardozo, we use digital intraoral sensors that provide high-resolution images with minimal radiation exposure for the patient.
Patient Preparation
The patient is asked to remove any metal objects from the head and neck area. A lead protective apron is fitted and the technician selects the appropriate digital sensors for the posterior tooth region to be examined.
Sensor Positioning with Bite Wing
The digital sensor, protected by a disposable cover, is placed inside the patient's mouth in the area of the posterior teeth. The patient gently bites on the wing of the holder, closing their teeth naturally, which stabilises the sensor in the ideal position to capture the image.
Interproximal Image Capture
The X-ray tube is positioned at the correct angle and the exposure is taken. The procedure is repeated for the different areas — molars and premolars on both sides — typically producing four images in total. Each exposure is painless and lasts less than one second.
Immediate In-Surgery Analysis
The digital images appear instantly on the monitor. The dentist analyses the interproximal areas of the teeth, checking for the presence of decay, changes to restorations, tartar, or bone crest loss. The results are discussed with the patient in real time.
Bitewing X-rays are a simple examination that forms part of routine dental appointments.
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Before the Examination
Remove piercings, earrings, and removable dentures. If you are pregnant or suspect you may be pregnant, inform the dentist beforehand
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During the Examination
Bite gently on the support tab and remain still during each exposure. The examination is painless and each image takes
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After the Examination
No special preparation is required. The dentist will show the images on screen and explain the results during the appointment.
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Follow-up care
We recommend repeating bitewing X-rays every six to twelve months, depending on the patient's caries risk and clinical indication.
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Before the Examination
Remove piercings, earrings, and removable dentures. If you are pregnant or suspect you may be pregnant, inform the dentist beforehand
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During the Examination
Bite gently on the support tab and remain still during each exposure. The examination is painless and each image takes
0
After the Examination
No special preparation is required. The dentist will show the images on screen and explain the results during the appointment.
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Follow-up care
We recommend repeating bitewing X-rays every six to twelve months, depending on the patient's caries risk and clinical indication.
What our patients say
The X-ray detected a cavity between my molars that I had no idea about. They managed to treat it in time!
Catarina Dimas
I've been having routine bitewing X-rays and they've saved me from much bigger problems. I really recommend keeping on top of prevention.
Nuno Gomes
My daughter had the examination without any fear at all. It was quick, painless, and the team were very friendly.
Margarida Teixeira
Clinical indications for bitewing X-rays
Bitewings are essential during routine appointments and for various dental treatments. Discover the main clinical indications for this examination.
Book your appointment
At Clínica Dr. Paulo Cardozo, in Benavente, we carry out digital bitewings with maximum precision and comfort. Book your routine appointment today.
Clínica Dr. Paulo Cardozo
R. Vasco da Gama 6,
2130-197 Benavente, Portugal
Telephone: +351 263 516 773
Mobile: +351 919 366 534
geral@clinicapaulocardozo.pt
Frequently asked questions
about the bitewings examination
What are bitewing radiographs?
These are interproximal X-rays that show the crowns of the upper and lower posterior teeth, ideal for detecting cavities between teeth.
Is the examination painful or uncomfortable?
No. Placing the sensor is straightforward, and the capture takes less than a second. The slight contact of the sensor in the mouth is well tolerated.
How many radiographs are taken?
Four images are usually taken: two of the molar area and two of the premolar area, covering all posterior teeth.
How often should I have bitewing radiographs?
We recommend every six or twelve months, depending on the patient's risk of tooth decay. The dentist will advise on the appropriate frequency.
Are bitewing radiographs safe for children?
Yes. The radiation dose is very low, and the examination is carried out with all appropriate protection for the child's age, including a lead apron.
What is the difference between bitewing and periapical radiographs?
Bitewing X-rays show the crowns of the posterior teeth. A periapical X-ray shows the complete tooth, from the crown to the root tip.
Can cavities be detected with the naked eye?
Not always. Interproximal cavities, which form between teeth, are practically invisible to the naked eye and are only detected by bitewing X-rays.
Does the examination require any special preparation?
No. It is simply necessary to remove any metal objects from the head area. No fasting or any other prior preparation is required for the examination.
Do you carry out digital bitewing radiographs at your clinic?
Yes. At Clínica Dr. Paulo Cardozo we use digital bitewings with high-resolution intraoral sensors and significantly less radiation.
Clinical Rigour and International Standards
The clinical team at Clínica Dr. Paulo Cardozo guides its practice in accordance with the guidelines of the leading oral health reference bodies, including the FDI World Dental Federation, the Ordem dos Médicos Dentistas (OMD), and the World Health Organization — Oral Health.
The continuous training and professional development of the clinical staff at Clínica Médica Dentária Dr. Paulo Cardozo, together with the integration of international recommendations into their practice, ensures that every procedure is carried out with safety and medical responsibility.