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 […]
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.
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 […]
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 […]
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 […]
QUICK EXAM CRACKERS IMPORTANT COMMON TUMOURS Most common malignancy in females in the world – Breast cancer followed by lung cancer Most common malignancy in females in India – Carcinoma of uterine followed by breast cancer Most common malignancy in males – Lung cancer followed by […]
IMPORTANT ORAL MANIFESTATIONS OF METABOLIC DISORDERS 🔹DIABETES MELLITUS: Severe periodontitis with loosening of teeth, gingivitis and painful gingival, burning mouth syndrome, delayed wound healing, mucosal ulceration, acetone breath, increased risk of infection, bilateral nontender enlargement of parotids (diabetic sialadenitis), xerostomia, gingival hyperplasia, candidiasis and atrophy of tongue papillae. 🔹AMYLOIDOSIS: Macroglossia with smooth, brawny and in […]
QUICK EXAM CRACKERS RADIOGRAPHIC CHANGES IN VARIOUS TOOTH ABNORMALITIES 🔺GEMINATION (Incomplete): Two crowns with one root 🔺DILACERATION: Sharp bend in the tooth (mostly root)
TYPICAL RADIOLOGICAL APPEARANCE CONTD. 🔺Brush in winter appearance: Normal sialographic appearance of submandibular gland 🔺Savage like appearance: Sialographic appearance of Sialographic 🔺Snow storm appearance: Sialographic appearance of sjogren’s syndrome 🔺Sialectasis: Sialographic appearance of Sialodenitis 🔺Ball in hand appearance: Sialographic appearance of intrinsic benign tumors 🔺Balloon like appearance: Follicular cyst
TYPICAL RADIOLOGICAL APPEARANCE 🔺Soap bubble appearance: Ameloblastoma, ABC, Central hemangioma 🔺Driven snow appearance: Calcifying epithelial odontogenic cyst 🔺Honeycomb pattern: Calcifying epithelial odontogenic cyst, odontogenic myxoma, hemangioma, giant cell granuloma 🔺Sunburst appearance: Hemangioma, osteosarcoma 🔺Sun ray appearance: Hemangioma, osteosarcoma, osteoblastoma
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