Category: Oral Medicine and Radiology

 TOPIC: RADIATION HAZARDS 🌟IMPORTANT POINTS TO REMEMBER 🔹Biological effects: Can be somatic (stochastic effect, deterministic effect) or genetic. The effect can be also acute or immediate effect and chronic or long-term effect. 🔹Immediate effects of radiation are dermatitis, brittleness of the fingernail, epilation and leukopenia. 🔹Chronic or long-term effect: Repeated low levels of radiation exposure […]

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TOPIC: RADIATION PROTECTION 🌟 IMPORTANT POINTS TO REMEMBER 🔹Natural radiation: It yields an average annual dose of about 0.79 mSv. It has three components: cosmic radiation, terrestrial radiation and internal sources. 🔹Cosmic radiation: It includes both energetic subatomic particles and photons of extraterrestrial origin that reach the earth.

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TOPIC: BASICS OF RADIOLOGY 🌟IMPORTANT POINTS TO REMEMBER 🔹Dental X-ray machine consists of an envelope, tube head, positioning arm, control panel, circuit and supporting stand. It can be of wall-mounted fixed type or mobile. 🔹Tube head consists of glass X-ray tube, tube housing, transformer, lead shield, surrounding oil, tube head seal, filtration, collimator, spacer cone […]

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TOPIC: PHYSICS OF RADIATION 🌟 IMPORTANT POINTS TO REMEMBER  🔹John Dalton in 1808 developed his famous ‘Theory of Atom’. 🔹Elemental matter: It is made up of a combination of a single type of atom, e.g. hydrogen atom. 🔹Compound matter: It is composed of recurring units of a specific number of atoms in a definite arrangement […]

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 GORLIN SYNDROME (Basal Nevus Cell Carcinoma Syndrome) ⭐IMPORTANT POINTS TO PONDER Gorlin syndrome is an autosomal dominant neurocutaneous (phakomatosis) disease characterized by a triad of multiple basal cell nevi, jaw odontogenic keratocysts, and skeletal anomalies.  🔹An odontogenic (primordial) keratocyst is a cyst that arises from a tooth before its calcification. 🔹It is most commonly located […]

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