Which one of the following is used in water fluoridation:  
A. SnF2
B. 1.23% APF
C. H2SiF6
D. CaSiF2
E. 8% Stannous fluoride

1 Answer

Answer :

C. H2SiF6

Related questions

Description : When the enamel of the tooth is exposed to preparation containing high concentrations of fluoride the major reaction is: M07 A. Sodium fluoride B. Calcium fluoride C. Stannous fluoride D. Fluoroapatite

Last Answer : D. Fluoroapatite

Description : The water fluoridation is 0.5ppm; what is the recommended supplemental fluoride concentrations for 3 years-old child: A. 0.25mg B. 0.50mg C. 1.00mg D. 0 mg

Last Answer : D. 0 mg

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 : The concentration of Fluoride in the topical NaF A. 2% B. 5% C. 8% D. 10%

Last Answer : B. 5%

Description : Community water fluoridation MOST effectively achieves: a. 90. 95% reduction of caries. b. 45. 55% reduction of caries. Esta se corrects si no tuviera la ultima opcion c. Reduces pit and fissures caries more than smooth surfaces. d. Reduces smooth surfaces more than pit and fissures.

Last Answer : d. Reduces smooth surfaces more than pit and fissures.

Description : Which of the following has proven to be the MOST important in community preventive program: A. Dental awareness of the community B. Institution of oral hygiene measures C. Water fluoridation

Last Answer : C. Water fluoridation

Description : Community water fluoridation MOST effectively achieves is:** A. 90-95% reduction of caries B. 45-55% reduction of caries C. Reduces pit and fissures caries more than smooth surfaces D. Reduces smooth surfaces more than pit and fissures

Last Answer : D. Reduces smooth surfaces more than pit and fissures

Description : Good oral hygiene and fluoridation is LEAST useful in preventing caries of: A. Pit and fissure B. Smooth surface C. Inaccessible areas

Last Answer : A. Pit and fissure

Description : Which of the following is not a property of Fluoride: A. Crosses placental barrier B. Deposits in bone C. Excretes rapidly by kidney D. Bacteria static E. Produces extrinsic tooth stain

Last Answer : E. Produces extrinsic tooth stain

Description : All of the following are properties of fluoride except: A. Crosses the placental barrier B. It deposits rapidly in bone C. It is excreted rapidly by kidneys D. It is bacteriostatic E. It produces extrinsic tooth stain

Last Answer : E. It produces extrinsic tooth stain

Description : A child consumes a toxic dose of fluoride. You will:** A. Induce vomiting B. Give a lot of fluids C. Give a lot of fluids and sodium bicarbonates D. Ask patient not to eat for 45 minutes E. Give milk, calcium tablets or magnesium tablets

Last Answer : E. Give milk, calcium tablets or magnesium tablets

Description : Several applications have been suggested to increase the effectiveness of prophylactic application of topical fluoride which include all EXCEPT: A. Increase Fluoride ions in solution increase concentration B. Increase ... D. Pre-treat enamel with 0.5% phosphoric acid E. Use NH4F instead of NaF

Last Answer : B. Increase PH of fluoride

Description : Several approaches have been suggested to increase the fixation of professionally applied topical fluoride, which of the following statements IS INCORRECT regarding increasing the fixation? A. Increase concentration of ... with 0.5% phosphoric acid E. Use NH4F rather than NaF at a lower PH

Last Answer : B. Raise the PH of the fluoride solution

Description : Fluoride in water community of 4ppm will result in: A. No mottling B. Mottling in almost all permanent teeth except some molars C. Mottling in permanent premolars only

Last Answer : B. Mottling in almost all permanent teeth except some molars

Description : .For a 5 years-old child who lives in a NON WATER FLUORIDATED area, what is the recommended supplemental intake of fluoride: A. 0.25mg B. 0.10mg C. 0.50mg D. 1.00mg

Last Answer : C. 0.50mg

Description : On examination of a composite restoration you find a dark attain: A. Replace the composite B. Repair with unfilled resin C. Apply topical fluoride at the margin

Last Answer : A. Replace the composite

Description : Two conditions of enamel facilitate the post eruptive uptake of fluoride: A. Hyper mineralisation and surface dentine B. Surface demineralisation and hypo mineralisation C. Dental fluorosis and enamel opacities

Last Answer : B. Surface demineralisation and hypo mineralisation

Description : How many mg of fluoride ions are obtained from 2.2 mg tablet of NaF A. 0.5mg B. 1 mg C. 1.5mg D. 10mg

Last Answer : B. 1 mg

Description : Using fluoride in the root surface caries is to protect, A. Enamel B. Dentine and cementum C. Cuticle

Last Answer : B. Dentine and cementum

Description : Recession of gingiva of several anterior teeth caused by exposure and softened cementum; what would you do? A. Scrap the soften cementum and apply fluoride B. Scrap the soften cementum and use GIC C. Class V amalgam

Last Answer : B. Scrap the soften cementum and use GIC

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 : The chemical name of quartz is: A. Silicon Dioxide (Answer) B. Stannous Oxide C. Aluminium Oxide D. None

Last Answer : A. Silicon Dioxide (Answer)

Description : Water Fluoridation: Benefitial or is it going to kill us all?

Last Answer : Nazis’ used to floridate water of prisoners in camps to keep them calm and keep from revolting. Also US has one of the highest rates of dental issues in the world, so much for that theory… Make up your own minds.

Description : Under the National mission for sustainable agriculture mission how much percentage of allocated fund would be invested on women farmers? a. 50% b. 33% c. c. 25% d. 30% e. e. 23%

Last Answer : d. 30%

Description : 57% of 400 + 23% of 700 + 32% of 1100 – 28% of 1300 = ? a) 401 b) 389 c) 377 d) 364 e) 352

Last Answer : ? = 57×4 + 23×7 + 32×11 - 28×13 = 228 + 161 + 352 – 364 = 377 Answer: c)

Description : The average domestic investment in the year 2011 is what percent of the average investment in Transport during the given four years? a) 201% b) 65.34% c) 125.45% d) 147.97% e) 167.23%

Last Answer : b) 65.34%

Description : Convert each of the following into decimal form: (i) 45% (ii) 127% (iii) 3.6% (iv) 0.23% -Maths

Last Answer : answer:

Description : The approximate representation of land use classification in India is [IAS 2010] (a) net area sown 25%; forests 33%; other areas 42% (b) net area sown 58%; forests 17%; other areas 25% (c) net area sown 43%; forests 29%; other areas 28% (d) net area sown 47%; forests 23%; other areas 30%

Last Answer : Ans: (d)

Description : According to 2017 census what is the share of Sindh in the total Population of Pakistan A. 22% B. 23% C. 25% D. 28%

Last Answer : ANSWER: B

Description : The ratio of population in Kashmir is now _____________ others approximately due to massive killings and other vile acts like settlement of non-Muslim migrants (Hindus and Sikhs) from Punjab. A. 34% Muslims and 66% B. 77% Muslims and 23% C. 66% Muslims and 34% D. Nove of Above

Last Answer : ANSWER: C

Description : The ratio of population in Kashmir is now _____________ others approximately due to massive killings and other vile acts like settlement of non-Muslim migrants (Hindus and Sikhs) from Punjab. A. 34% Muslims and 66% B. 77% Muslims and 23% C. 66% Muslims and 34% D. Nove of Above

Last Answer : ANSWER: C

Description : According to 2017 census what is the share of Sindh in the total Population of Pakistan A. 22% B. 23% C. 25% D. 28%

Last Answer : ANSWER: B

Description : How much of India's total geographical area is forest land? (1) 20% (2) 23% (3) 26% (4) 28%

Last Answer : (2) 23% Explanation: Forest area (% of land area) in India was last measured at 23.07% in 2011, according to the World Bank. Forest area is land under natural or planted stands of ... at least 5 meters in situ, whether productive or not, and excludes tree stands in agricultural production systems.

Description : Contribution of agriculture in GDP is (A) 23% (B) 30% (C) 40% (D) 60%

Last Answer : (A) 23%

Description : . Mention the percentage share of primary sector in GDP in 1973. (a) 22% (b) 23% (c) 45% (d) 61%

Last Answer : (c) 45%

Description : In the High End Segment, price as a buying criteria is accounts for which percentage of the consumer decision: a. 53%. b. 9%. c. 23%. d. 19%.

Last Answer : b. 9%.

Description : 6.------- is the forest cover to be maintained as per the National Forest Policy (1988) 1. 67% for hills & 33% for plains 2. 37% for hills & 11% for plains 3. 17% for hills & 23% for plains 4. None of the above

Last Answer : Ans: 67% for Hills and 33% for plains

Description : Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below. (A) Arsenic (B) Sorbitol (C) Fluoride (D) Formaldehyde (E) Uranium (1) B, D and E (2) A, B, C, D and E (3) A, C and E (4) A and C

Last Answer : A, C and E 

Description : Which of the following procedures will not achieve sterilization: A. Hot air at 160ºC for 90mins B. Boiling water at 100ºC for 2 hours C. Autoclave at 121ºC under 15psi for 20 mins D. Dry heat at 177ºC for 60mins E. All of the above will achieve sterilisation

Last Answer : B. Boiling water at 100ºC for 2 hours

Description : Elastomers are:** A. Hydrophilic B. Hydrophobic C. Water-loving impression material D. Potassium alginates E. None of the above

Last Answer : B. Hydrophobic

Description : The disadvantage of heating the impression compound in a water bath is: A. It may become brittle B. It may become grainy C. Lower moles with constituents are leached out D. The plasticity of the compound may be altered E. All of the above

Last Answer : D. The plasticity of the compound may be altered

Description : When dry cast is immersed in water saturated with calcium sulphate:** A. There is contraction B. There is negligible expansion C. There is definite expansion D. There is no change E. None of the above

Last Answer : B. There is negligible expansion

Description : The MOST effective manner to produce a hard surface on a cast is by: A. Employ as much water as possible on mixing B. Employ as little water as possible on mixing C. Adding 2% of borax to the mix D. Adding calcium tetraborate E. None of the above

Last Answer : B. Employ as little water as possible on mixing

Description : Compared to dental plaster all die stones: A. Require less gauging water B. Require more gauging water C. Require the same quantity of gauging water D. Are beta-hemihydrate E. None of the above

Last Answer : A. Require less gauging water

Description : Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? (A) Smog & ozone (B) Hydrogen fluoride & nitrogen oxides (C) Sulphur dioxide & spray of weed killers (D) Carbon monoxide

Last Answer : (D) Carbon monoxide

Description : Which one of the following species contains a polar covalent bond? A oxygen B carbon dioxide C sodium chloride D magnesium fluoride E helium

Last Answer : B carbon dioxide

Description : SBI has been named as domestic systemically important banks (D-SIBs) this year. What additional capital it will have to maintain as a percent of loans and investments? A) 0.2% B) 0.4% C) 0.6% D) 0.8% E) None of these

Last Answer : C) 0.6% Explanation: Based on the methodology announced by the central bank, SBI will need to maintain additional capital equivalent to 0.6 per cent of its loans and investments while ICICI will need to maintain 0.2 per cent more.

Description : 34.8% x 950 – 33.2% of 850 = ? a) 58.4 b) 48.4 c) 56.4 d) 68.9 e) 76.3

Last Answer : 34.8% x 950 – 33.2% of 850 = ? Sol: 0.348 x 950 – 0.332 x 850=? 330.6 – 282.2=? ?= 48.4 Answer: b)

Description : A sum of Rs. 1550 was lent partly at 5% and partly at 8% per annum simple interest. The total interest received after 4 yr was Rs. 400. The ratio of the money lent at 8% to that lent at 5% is? (a) 15:16 (b) 16:17 (c) 19:17 (d) 21:26 (e) 20:17

Last Answer : (a) 15:16

Description : A sum of Rs. 1521 is lent out in two parts in such a way that the interest on one part at 10% for 5 yr is equal to that of another part at 8% for 10 yr. What will be the two parts of sum? (a) Rs.946 and ... ) Rs.986 and Rs.515 (c) Rs.956 and Rs.505 (d) Rs.936 and Rs.585 (e) None of the above

Last Answer : (d) Rs.936 and Rs.585