Calculus, Stains & Demineralization Quiz

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Melinda Ginez

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Calculus, Stains & Demineralization Quiz


Calculus, Stains & Demineralization QuizVersión en línea Test your dental knowledge. por Melinda Ginez 1 What is dental calculus? a A soft tissue around teeth b A saliva protein c A type of tooth filling d A hard, mineralized form of dental plaque 2 Which is an example of an intrinsic stain? a Stain from tea on the outer surface b Stain from tobacco on the root c Extrinsic coffee stain on enamel d stain from tetracycline during tooth formation 3 Demineralization occurs when the pH drops below? a 4.5 b 6.5 c 7.0 d 5.5 4 Which agent aids remineralization most effectively? a Sodium bicarbonate b Fluoride c Hydrogen peroxide d Chlorhexidine 5 What is the therapeutic daily dose of xylitol? a 1-2 g b 6-14 g c 20-25 g d 30 g 6 Which type of stain is removable by polishing? a Stains from internal medicine b Intrinsic stains within dentin c Extrinsic stains from coffee, tea, or tobacco d Discoloration due to aging only 7 Calculus typically forms after how many days of plaque accumulation? a 1 day b About 12 days c 3 days d 30 days 8 What inorganic mineral is predominant in calculus? a Calcium carbonate b Calcium sulfate c Calcium phosphate (hydroxyapatite) d Magnesium phosphate 9 Exogenous stains originate from: a pulp chamber b during tooth development c External sources like food, habits, or environment d genetic mutations 10 A gray-black discoloration following around an old filling likely due to: a amalgam restorations b Chlorhexidine c food d tobacco use 11 Tartar-control toothpaste ingredients may include all except a Pyrophosphates b Zinc chloride c Sodium fluoride d Diphosphonates 12 Which attachment is easiest to remove calculus from? a Cementum locking b Root resorption c Direct interlocking with enamel d Pellicle attachment 13 Does calculus cause periodontal disease by itself? a No, it worsens plaque effects b Only in smokers c Only if exposed root surface d Yes, it always causes disease 14 Approximately how much enamel is removed in 30 seconds of polishing? a 1 micron b 10 micron c 4 micron d 2 micron 15 Which scale relates to abrasive polishing agents? a Richter scale b Fermi scale c Mohs hardness scale d Beaufort scale 16 Tartar-control toothpastes are effective for: a Subgingival calculus b Supragingival calculus c Sub and Supragingival calculus d Neither 17 Which stain type is inside the tooth structure? a Endogenous intrinsic stain b Surface enamel stain c Exogenous extrinsic stain d Pellicle stain 18 Which type of caries is reversible? a arrested caries b rampant caries c recurrent caries d incipient caries 19 What is the caries process primarily driven by? a Only sugar-free diets b Vitamin deficiency c Acidogenic bacteria and fermentable sugars d Genetic defects alone 20 All of the following is a contraindication for polishing except? a Extrinsic stains b Rampant decay c Xerostomia d Demineralized areas 21 A tetracycline stain occurs because the antibiotic: a etches enamel b binds to calcium during dentinal formation c inhibits fluoride uptake d causes carious lesions 22 Where is subgingival calculus located? a proximal to the tooth b coronal to the tooth c apical to the tooth d intrinsic to the tooth 23 All except are most associated with root caries risk? a grooves of mandibular molars b xerostomia c gingival recession d exposed cementum 24 Which are two antibacterial components of saliva? a Calcium and Phosphate b Urea and Sodium bicarbonate c Lactoferrin and Lysozyme d Glucose and sucrose 25 Supragingival calculus derives its minerals mainly from: a Saliva b Chlorine c Aerosolized air d Bleach 26 Subgingival calculus derives its minerals mainly from: a Saliva b Gingival crevicular fluid (GCF) and exudate c Fluoride d Enamel crystals 27 Fluorosis results from: a Trauma b Too little fluoride exposure c Dentin dysplasia d High fluoride intake during enamel formation 28 Which abrasive has a Mohs hardness of 6–7 and is common in prophy paste? a Perlite b Aluminum oxide c Pumice d Calcium carbonate 29 Which polishing agent is commonly used for polishing enamel? a Chlorhexidine b Hydrogen peroxide c Sodium chloride d Pumice 30 Approximately what percentage of calculus crystal composition is hydroxyapatite? a 52% b 20% c 66% d 90% 31 Which classification is used for proximal surfaces of anterior teeth with no incisal involvement? a G.V. Black Class III b G.V. Black Class IV c G.V. Black Class V d G.V. Black Class VI 32 Which classification is used for pits and fissures? a G.V. Black Class VI b G.V. Black Class II c G.V. Black Class IV d G. V. Black Class I 33 Which paste additive aids remineralization? a Amorphous calcium phosphate (ACP) b Hydrogen peroxide c Chlorine dioxide d Alcohol 34 Which is true about caries detection methods? a Detection is possible only after pain b Only X-rays detect caries c Detection replaces remineralization therapy d Visual and tactile cues help identify early lesions 35 What is arrested caries? a Lesion that accelerates decay b Lesion that becomes eruptive c Lesion that stops progressing d Lesion that only affects enamel Ω

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Calculus, Stains & Demineralization QuizVersión en línea

por Melinda Ginez

What is dental calculus?

Which is an example of an intrinsic stain?

Demineralization occurs when the pH drops below?

Which agent aids remineralization most effectively?

What is the therapeutic daily dose of xylitol?

Which type of stain is removable by polishing?

Calculus typically forms after how many days of plaque accumulation?

What inorganic mineral is predominant in calculus?

Exogenous stains originate from:

A gray-black discoloration following around an old filling likely due to:

Tartar-control toothpaste ingredients may include all except

Which attachment is easiest to remove calculus from?

Does calculus cause periodontal disease by itself?

Approximately how much enamel is removed in 30 seconds of polishing?

Which scale relates to abrasive polishing agents?

Tartar-control toothpastes are effective for:

Which stain type is inside the tooth structure?

Which type of caries is reversible?

What is the caries process primarily driven by?

All of the following is a contraindication for polishing except?

A tetracycline stain occurs because the antibiotic:

Where is subgingival calculus located?

All except are most associated with root caries risk?

Which are two antibacterial components of saliva?

Supragingival calculus derives its minerals mainly from:

Subgingival calculus derives its minerals mainly from:

Fluorosis results from:

Which abrasive has a Mohs hardness of 6–7 and is common in prophy paste?

Which polishing agent is commonly used for polishing enamel?

Approximately what percentage of calculus crystal composition is hydroxyapatite?

Which classification is used for proximal surfaces of anterior teeth with no incisal involvement?

Which classification is used for pits and fissures?

Which paste additive aids remineralization?

Which is true about caries detection methods?

What is arrested caries?