What is the basic structure of atoms? Atoms consist of three basic particles: protons, neutrons. and electrons. The nucleus (centre) of the atom contains the protons (positively charged) and the neutrons (no charge). Atoms consist of three basic particles: protons, neutrons. and electrons. The nucleus (centre) of the atom contains the protons (negatively charged) and the neutrons (no charge). Atoms consist of three basic particles: protons, neutrons. and electrons. The nucleus (centre) of the atom contains the protons (positively charged) and the neutrons (negatively charged).

What is the structure of an atom? Atoms consist of a positively charged nucleus surrounded by a cloud of negatively charged electrons Atoms consist of a negatively charged nucleus surrounded by a cloud of positively charged electrons Atomic nucleus is a negatively charged object composed of protons and neutrons at the centre of every atom with one or more electrons orbiting it Atomic nucleus is a negatively charged object composed of protons and neutrons at the centre of every atom with one or more positively charged electrons orbiting it

The electromagnetic spectrum ranges from low energy (long wavelength) radio waves to high energy (short wavelength). (X- and gamma-rays). Which rays have the highest wavelength? Gamma rays X -Rays Ultraviolet Infrared Radio waves Visible light

What is an example of artificial man-made sources of radiation? Select more than one answer Diagnostic X-Rays Smoke detectors Building and road construction materials Televisions Combustible fuels, including gas and coal Cosmic radiation Minerals containing uranium

What is an example of natural background sources of radiation? Select more than one answer. Cosmic radiation Terrestrial radiation that is emitted by naturally occurring radioactive materials, such as uranium, thorium, and radon in the earth Diagnostic X-Rays Smoke detectors Building and road construction materials Combustible fuels, including gas and coal

What is an Electron? Have a positive charge Are found in the nucleus Have a larger mass than a proton Carry a negative charge and orbit around the nucleus

What is a Proton? Have no electrical charge Orbit around the nucleus Have a positive charge and responsible for the atomic number of an atom Act as binding agents within the nucleus

What is a Neutron? All answers are correct except for one. Which one is the incorrect answer? Have a positive charge Are found in the nucleus Have a neutral charge Can change the mass of the nucleus if removed Isotopes are created when adding or removing neutrons from the nucleus

What are Isotopes? Atoms of the same element, have the same number of protons and electrons, but have different numbers of neutrons Atoms of the different elements that have different numbers of protons, electrons and neutrons Atoms of the same element, that have different numbers of protons and electrons Atoms of the same element, that have the same number of protons and neutrons

What is the structure of the atom? Atoms consist of three basic components known as subatomic particles such as protons (positively charged), neutrons (no charge), and electrons (negatively charged). Atoms consist of very small particles called protons (no charge), neutrons (no charge), and electrons (positively charged). Atoms consist of very small particles called protons (no charge), neutrons (negatively charged), and electrons (positively charged). Atoms consist of very small particles called protons (no charge), neutrons (no charge), and electrons (negatively charged).

Occlusal Radiography

How X-ray tube head is positioned during upper standard or anterior occlusal x-ray taking procedure? The x-ray tubehead is positioned above the patient in the midline, aiming downwards through the bridge of the nose at an angle of 65-70° to the image receptor. The X-ray tubehead is positioned to the side of the patient’s face, aiming downwards through the cheek at an angle of 65-70° to the image receptor, centring on the region of interest. The X-ray tubehead, with circular collimator fitted, is placed below the patients chin, in the middle, centring on an imaginary line joining the first molars, at an angle of 90° to the image receptor. The X-ray tubehead is positioned in the midline, centring through the chin point, at an angle of 45° to the image receptor.

What is the occlusal x-ray film size? 60 x 70 mm 57 x 76 mm 27 x 54 mm 31 x 41 mm

What normal anatomical structure has been arrowed on this upper standard occlusal radiograph?

Nasolacrimal canal Maxillary antrum Inferior turbinate Superior foramina of the nasopalatine canal

Post Qualification in Radiography Curriculum

Our pricing list

Basic

premium

advanced

Radiography quiz

Occlusal Radiography

Updated articles on our blog

Ask Questions

Join our community