Dental X-ray Sensors: How to Choose.

A digital X-ray sensor is the rigid plate on a cable that captures a bitewing or periapical in a few seconds. It is not a panoramic unit, not a CBCT, and not an intraoral camera. Phosphor plates are the other digital path: a flexible plate goes in the mouth, then a scanner reads it. Plates and sensors solve the same radiographs with different workflow. This guide is about sensors.

How to choose a sensor

• Sizes. Size 2 is the adult bitewing and posterior periapical. Size 1 is easier on smaller mouths. Size 0 is for children. Most offices need at least one size 2 per working room, plus a smaller sensor if they see kids. One sensor shared across the hall does not survive a busy hygiene day.
• Cable and durability. The cable and the housing corners are what fail, usually from bites and drops, not from the chip. Ask what the warranty actually covers and what a replacement sensor costs in year three. Rounded corners and a thin body matter more to patients than a marketing line about resolution.
• Software. Some sensors open in the vendor’s imaging program only. Some bridge into the practice-management chart you already use. A sensor that forces a second image library will be fought by the team. Test a capture on your current software before you sign.
• Holders. The sensor is useless without a positioning system that fits that brand’s thickness. Budget the holders with the sensor. The X-ray supplies list is where those holders and barriers live.
• Sensor or plate. Sensors are faster and have a higher replacement cost when one is damaged. Plates are cheaper to lose and slower, because each exposure is scanned. Do not buy both systems unless you have a reason, such as a plate for pediatrics and sensors for adults.

How common sensor lines differ

Brand	Known for	Best fit	Watch for
DEXIS	Titanium and related sensors in DEXIS imaging	Offices already storing radiographs in DEXIS	A DEXIS sensor is a weak fit if images must live in another suite
Dentsply Sirona	Schick 33 and Xios sensors tied to Sidexis	Practices on Sidexis or a Sirona panoramic unit	Confirm the sensor generation matches the Sidexis version you run
Carestream Dental	RVG and CS 6200 sensors in CS Imaging	Offices on Carestream software or a CS panoramic	Match the sensor to the software, not just the generator
Vatech	EzSensor, often quoted below the premium U.S. brands	Offices comparing acquisition cost against DEXIS or Schick	Test the software bridge. The price advantage disappears if the team will not use it

DEXIS

DEXIS sensors are built to live in DEXIS imaging, next to DEXIS cameras and, in many offices, a DEXIS panoramic. That is the right buy when the chart already opens those images. It is the wrong buy when you would be starting a second radiograph database to accommodate one brand of sensor.

Dentsply Sirona

Schick 33 and the Xios line are Sirona’s intraoral sensors, and they are at home in Sidexis. Offices with an Orthophos or other Sirona 2D unit usually stay here so bitewings and the panoramic land in one program. Check that the sensor you are quoted is supported by the Sidexis version already installed, not the version on the dealer’s laptop.

Carestream

RVG is the name Carestream’s sensor line carried for years. The CS 6200 is the current compact sensor in that family. Both expect CS Imaging. If the panoramic unit is a CS 8100, keeping the sensor in the same software is the practical reason to choose it.

Vatech

EzSensor is the sensor Vatech offers against the higher-priced U.S. lines. The useful comparison is not the spec-sheet line pairs. It is whether a captured image files into the software your assistants already have open, and what a broken size 2 costs to replace.

Related guides

• Imaging equipment
• X-ray supplies, holders, and plates
• Panoramic X-ray units
• CBCT systems

Sensor questions

Do sensors replace a panoramic machine?

No. A sensor takes intraoral images. A panoramic unit takes the full-arch screening image. A CBCT takes volumes. You still need the sensor for bitewings even if you own the other two.

How many sensors does one office need?

One size 2 for each room that takes radiographs at the same time, plus a size 1 or 0 if you treat children. A single sensor for a four-chair office becomes the bottleneck, and it is also the only sensor you can drop.