Description : Fluorosis occurs due to (A) Drinking water containing less than 0.2 ppm of fluorine (B) Drinking water containing high calcium (C) Drinking water containing greater than 1.2 ppm of fluroine (D) Drinking water containing heavy metals
Last Answer : Answer : C
Description : Upper safe limit of fluorine in water is (A) 0.4 ppm (B) 0.8 ppm (C) 1.2 ppm (D) 2 ppm
Description : Of all the factors that increase the resistance of teeth to dental caries, THE MOST EFFECTIVE is,** A. The general nutrition of a child during the period of tooth formation B. The ... eruption D. Sufficient intake of calcium and Vitamin D during the period of enamel mineralization and maturation
Last Answer : B. The intake of fluoride during the period of enamel mineralization and maturation
Description : Dental caries are due to (1) Viral infection (2) Contaminated water (3) Bacterial infection (4) Hereditary causes
Last Answer : (3) Bacterial infection
Description : Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? A. Stimulated salivary secretion rate of 1.5ml/min B. ... of 105 organism/ml E. Salivary buffering PH 5.5 > 100000 CFU/ml high caries incidence
Last Answer : E. Salivary buffering PH 5.5
Description : Irrigation water containing more than —- ppm Boron is harmful to crops a. 0.5 b. 1 c. 2 d. 3
Last Answer : d. 3
Description : Assertion: Aptyalism patients have higher than normal incidences of dental caries. Reason: Aptyalism is caused by the action of parasympa- thetic nerv
Last Answer : Assertion: Aptyalism patients have higher than normal incidences of dental caries. Reason: ... the action of parasympa- thetic nervous system
Description : Drinking of mineral water with very low levels of pesticides (about 0.02 ppm) for long periods may:
Last Answer : Drinking of mineral water with very low levels of pesticides (about 0.02 ppm) for long ... . cause leukaemia D. Produce immunity against mosquito.
Description : TLV of mercury in potable (drinking) water is about __________ ppm. (A) 0.001 (B) 0.1 (C) 1 (D) 5
Last Answer : (A) 0.001
Description : The deficiency of which leads to dental caries? -Do You Know?
Last Answer : answer:
Description : Newborns exposed to Chlamydia trachomatis from an infected mother may experience a. Toxic Shock Syndrome or Staphylococcal Skin Disease. b. Dental Caries When the Teeth Grow In. c. Destruction of the Reproductive Organs. d. Disease of the Eyes or Lungs.
Last Answer : d. Disease of the Eyes or Lungs.
Description : What is the most common infectious disease today? a. Respiratory Infections b. Intestinal Infections c. Sexually Transmitted Infections d. Dental Caries
Last Answer : d. Dental Caries
Description : Which of the following is NOT a condition seen with the development of dental caries? a. A Susceptible Tooth With A Buildup Of Plaque b. Dietary Carbohydrates (Usually Sugar) c. Acidogenic Bacterial Species d. Chewing A Lot Of Gum
Last Answer : d. Chewing A Lot Of Gum
Description : The deficiency of which leads to dental caries?
Last Answer : Flourine
Description : for dental caries to progress in dentine, A. the dentine must contain soluble collagen B. enamel must contain glycoproteins C. diet must contain simple carbohydrate D. diet must contain polysaccharides E. pulp must contain complement
Last Answer : C. diet must contain simple carbohydrate
Description : Dental caries of the proximal surfaces usually starts at, A. Somewhere between the ridge and the contact area B. Just gingival to contact areas C. Just about the gingival margin
Last Answer : B. Just gingival to contact areas
Description : What is the MOST important role of saliva in preventing dental caries: A. Buffering action
Last Answer : A. Buffering action
Description : Dental plaque produces: A. Chelation B. Dental caries C. Acids
Last Answer : C. Acids
Description : What is the affect of office dental prophylaxis of regular six month intervals on children's oral health? A. Reduce caries incidence by approximately 30% B. Provide a long term improvement in ... term improvement in oral hygiene D. Prevent gingivitis E. Reduce the need for patient cooperation
Last Answer : C. Provide a short term improvement in oral hygiene
Description : For dental caries to progress in dentine, A. The dentine must contain soluble collagen B. Enamel must contain glycoproteins C. Diet must contain simple carbohydrate D. Diet must contain polysaccharides E. Pulp must contain complement
Last Answer : C. Diet must contain simple carbohydrate
Description : A 45 years-old patient awoke with swollen face, puffiness around the eyes, and oedema of the upper lip with redness and dryness. When he went to bed he had no swelling, pain or ... B. Angioneurotic oedema C. Infectious mononucleosis D. Acute maxillary sinusitis E. Acute apical periodontitis
Last Answer : B. Angioneurotic oedema
Description : Bone deformities occur due to excessive intake of: (1) Phosphorus (2) Potassium (3) Fatty acid (4) Fluorine
Last Answer : (4) Fluorine Explanation: Bone deformities occur due to excessive intake of Fluorine.
Description : Presence of excess fluorine in water causes (A) Dental cavity (B) Tooth decay (C) Fluorosis (D) Respiratory disease
Last Answer : (C) Fluorosis
Description : Presence of a certain minimum quantity of fluorine is desirable in potable water to prevent (A) Dental cavities (B) Scale formation (C) Water-borne disease (D) Corrosion
Last Answer : (A) Dental cavities
Description : A gas used as a disinfectant in drinking water is - (1) Hydrogen (2) Oxygen (3) Fluorine (4) Chlorine
Last Answer : (4) Chlorine Explanation: Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water.
Description : A dental disease characterised by mottling of teeth is due to the presence of certain chemical element in drinking water. Which of the following is th
Last Answer : A dental disease characterised by mottling of teeth is due to the presence of certain chemical element ... mercury B. fluorine C. Boron D. Chlorine
Description : If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur. (A) 50 (B) 500 (C) 1000 (D) 3000 (i.e. 0.3%
Last Answer : (D) 3000 (i.e. 0.3%
Description : When the concentration of SO2 in air is greater than __________ ppm, it gives a pungent smell. (A) 0.01 (B) 0.1 (C) 1 (D) 4
Last Answer : (D) 4
Description : Caries which is close to the pulp chamber; on x rays you find ‘dens in dente’; the right treatment is: A. Zinc oxide eugenol cement and amalgam B. Pulpectomy C. Pulpotomy D. Calcium hydroxide on pulp and amalgam
Last Answer : B. Pulpectomy
Description : Which one of following statement about Overdenture is not correct: A. Greater occlusal loads can be applied by the patient B. Retention and stability are generally better than with ... The retained roots are covered by the denture thus protecting them from caries and periodontal diseases
Last Answer : D. The retained roots are covered by the denture thus protecting them from caries and periodontal diseases
Description : .Fluoridation is the adjustment of the fluoride content of a community water supply to optimum levels for caries prevention. Which of the following statement is correct? A. Tooth decay ... in smooth surface caries from in pit and fissures D. Fluoridation increases vulnerability to osteoporosis
Last Answer : C. Greater reduction in smooth surface caries from in pit and fissures
Description : Which of the following statement about the defective margins of amalgam restorations is true?+M07 A. The larger the breakdown, the greater the chance of decay. IF THERE IS MARGINAL BREAKDOWN THIS DOSNT NECESSITATE THE PRESENCE OF CARIES ALONG MARGIN So the ans is Chances are increased
Last Answer : A. The larger the breakdown, the greater the chance of decay.
Description : Fluorosis is caused due to (A) Excessive intake of fluorine (B) Low intake of fluorine (C) Discoloration of the teeth due to low intake (D) All of these
Last Answer : Answer : A
Description : Death may occur, when SO2 concentration in atmospheric air exceeds __________ ppm. (A) 20 (B) 100 (C) 400 (D) 200
Last Answer : (C) 400
Description : What is the valency of fluorine in calcium fluoride?
Last Answer : 1. This is answerI have another question to ask youWhat is the valency of calcium in calcium flouridePlease can you answer to my question
Description : ________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant. (A) Calcium (B) Fluorine (C) Phosphorous (D) Sulphur
Last Answer : (B) Fluorine
Description : Which micromineral is essential for the production of the thyroid hormones? a. calcium c. fluorine b. iodine d. magnesium
Last Answer : b. iodine
Description : Teeth and Bones acquire strength and rigidity from (1) Calcium (2) Fluorine (3) Chlorine (4) Sodium
Last Answer : Calcium
Description : Black cotton soils are a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering* b) Compacted and ... underneath d) Dark brown earthy materials formed due to partial or complete decomposition of vegetable matter
Last Answer : a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering*
Description : Atomic number of which of the following elements is greater than that of Fluorine? (1) Sodium (2) Beryllium (3) Nitrogen (4) Boron
Last Answer : (1) Sodium Explanation: Sodium has higher atomic number (11) than Fluorine (9) The atomic number of Beryllium and Nitrogen are 4 and 7 respectively.
Description : What causes the mottling of the dental enamel? (1) High levels of chlorine in water (2) High levels of nitrate in the water (3) High levels of fluorides in the water (4) High levels of calcium in the water
Last Answer : (3) High levels of fluorides in the water Explanation: The mottling of dental enamel is an extremely common disorder, characterized by hypomineralization of tooth enamel caused by ingestion of ... toothpaste, use of fluoride tablets, and consumption of processed foods made with fluoridated water.
Last Answer : High levels of fluorides in the water
Description : For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. (A) 10000 (B) 5 (C) 500 (D) 1000
Last Answer : (B) 5
Description : Pick up the correct statement from the following: (A) Water with hardness upto 75 ppm is considered soft (B) Water with hardness more than 200 ppm is considered hard (C) Water needed for laundries should contain hardness less than 75 ppm (D) All the above
Last Answer : (D) All the above
Description : Materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators, are known as A. Thermistors B. Varistors C. Semi-conductors D. Variable resistors.
Last Answer : Materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators, are known as Semi-conductors.
Description : _______are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators.
Last Answer : Semi-conductors are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators.
Description : The high reactivity of fluorine is due to (a) Its high electronegativity (b) Small size of flourine atom (c) Availability of d-orbitals (d) Strong F-F bond
Last Answer : Ans:(a)
Description : The high reactivity of fluorine is due to (1) small size of fluorine atom (2) its high electro negativity (3) availability of d-orbitals (4) strong F - F bond
Last Answer : (2) its high electro negativity Explanation: The high reactivity of fluorine is due to its high electro negativity.