Image Receptors In Dentistry

Image Receptors In Dentistry

Term image receptor refer to any medium used to capture an image, including fim, charge coupled devices (CCDs), complementary metal oxide semiconductor (CMOS) sensors or storage phosphor plates.

These are also known as image sensors.

Principle for making the projection radiographs is same for each of these receptor types.

“The Role Of Image Receptors In Reducing Radiation Exposure”

Types of image Receptors

• Conventional or Radiographic films
  • Direct action or packet film
  • Indirect action film used in conjunction with intensifying screens in a cassette
• Digital
  • Solid state sensors i.e. CCD and CMOS
  • Phosphor plates i.e. PSP

“Types Of Image Receptors Used In Dentistry”

Image Receptors Radiographic films

• In dentistry, radiographic film is used as image receptor and is still widely used.
• Radiographic films are of two types:
  • Direct action: It is sensitive primarily to the X-ray photons.
  • Indirect action or screen fim: This is sensitive to the light photons which are emitted by adjacent intensifying screens. They respond to the shorter exposure of X-rays, enabling the lower dose of radiation to be given to the patient.

Dental X-Ray Image Receptors

Technology on Which digital image Receptors Work

Digital image receptors use diffrent technologies and come in diffrent sizes and shapes.

“Effective Ways To Improve Image Quality With Dental Image Receptors”

Mainly two types of technologies are used i.e.

• Solid state technology: Solid state detectors are charged couple devices (CCDs), complementary metal oxide semiconductor (CMOS) sensors and flt panel detectors. These all have in common certain physical properties and have ability to generate digital image in computer without any external device. In dentistry, intra-oral solid state detectors are known as sensors.
• Photostimulable phosphor technology: It consists of a phosphor coated plate in which the latent image is formed by the X – ray exposure. Latent image get converted to digital image by scanning device via stimulation by laser light. This technology is referred to as storage phosphor on basis of notion that the image formation is temporarily stored in phosphor. Image plate is the term used to differentiate them from film and solid state detectors.

Digital Image Receptors In Dentistry

Various image Receptors and their clinical applications

“Understanding The Role Of Image Receptors In Dental Imaging”