Which is correct in regard to shade selection of crowns: A. It should be selected before starting preparation B. Chroma is the lightness/darkness of colours C. Value is the colour itself D. Hue is the concentration of colours

Which is correct in regard to shade selection of crowns:
A. It should be selected before starting preparation
B. Chroma is the lightness/darkness of colours
C. Value is the colour itself
D. Hue is the concentration of colours
by

1 Answer

Answer :

A. It should be selected before starting preparation
by

Related questions

Munsell colour chart lightness and darkness of colour is denoted by a. HUE b. VALUE c. CHROMA d. None of these

Description : Munsell colour chart lightness and darkness of colour is denoted by a. HUE b. VALUE c. CHROMA d. None of these

Last Answer : b. VALUE

In regard to shade, chroma is: A. Brightness B. Saturation of hue C. Value

Description : In regard to shade, chroma is: A. Brightness B. Saturation of hue C. Value

Last Answer : B. Saturation of hue

In regard to colour, what does Chroma stand for, A. Degree of saturation of hue B. Brightness C. Value D. Contrast

Description : In regard to colour, what does Chroma stand for, A. Degree of saturation of hue B. Brightness C. Value D. Contrast

Last Answer : A. Degree of saturation of hue

An intermediate hue is a. Two primary colours in equal amount b. Two secondary colours in equal amounts c. A mixture of one primary colour and its adjacent / neighbouring secondary colour d. A mixture of 1 secondary and its opposite primary in 3:2 proportion

Description : An intermediate hue is a. Two primary colours in equal amount b. Two secondary colours in equal amounts c. A mixture of one primary colour and its adjacent / neighbouring secondary colour d. A mixture of 1 secondary and its opposite primary in 3:2 proportion

Last Answer : c. A mixture of one primary colour and its adjacent / neighbouring secondary colour.

What is TRUE in regard to the preparation of occlusal rests: A. Use an inverted cone bur B. Use a flat fissure bur C. Parallel to occlusal plane D. At right angle to the long axis of tooth E. None of the above

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Last Answer : E. None of the above

In regard to Chlorhexidine mouth wash:** A. Is anionic ( opposite) B. Used in 0.02% concentration ( topical skin) C. Used in 0.12% concentration D. Penetrates the gingival crevice/pocket ( no)

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Last Answer : C. Used in 0.12% concentration

Gemination is: a. Division of single tooth, twining. b. Fusion of two or more crowns of teeth c. Fusion of two or more roots.

Description : Gemination is: a. Division of single tooth, twining. b. Fusion of two or more crowns of teeth c. Fusion of two or more roots.

Last Answer : a. Division of single tooth, twining.

An advantage of metal. ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is, A. Palatal reduction may be of minimal thickness. B. Overall conservative for tooth structure. C. Ability to watch the appearance of adjacent natural teeth. D. Less laboratory time.

Description : An advantage of metal. ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is, A. Palatal reduction may be of minimal thickness. B. Overall conservative for tooth structure. C. Ability to watch the appearance of adjacent natural teeth. D. Less laboratory time.

Last Answer : A. Palatal reduction may be of minimal thickness.

Titanium is used in dentistry A. In a very pure form in implants B. In an alloy with aluminium in casting for crowns and bridges C. In an alloy with nickel in orthodontic wires D. A and B E. A, B and C

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Last Answer : E. A, B and C

What is the minimal labial reduction for porcelain metal crowns: A. 1mm B. 1.5mm C. 0.5mm

Description : What is the minimal labial reduction for porcelain metal crowns: A. 1mm B. 1.5mm C. 0.5mm

Last Answer : B. 1.5mm

Gemination is:** A. Division of single tooth, twining B. Fusion of two or more crowns of teeth C. Fusion of two or more roots

Description : Gemination is:** A. Division of single tooth, twining B. Fusion of two or more crowns of teeth C. Fusion of two or more roots

Last Answer : A. Division of single tooth, twining

An advantage of metal-ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is, A. Palatal reduction may be of minimal thickness B. Overall conservative for tooth structure C. Ability to watch the appearance of adjacent natural teeth D. Less laboratory time

Description : An advantage of metal-ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is, A. Palatal reduction may be of minimal thickness B. Overall conservative for tooth structure C. Ability to watch the appearance of adjacent natural teeth D. Less laboratory time

Last Answer : A. Palatal reduction may be of minimal thickness

The main factor controlling a decision to increase the occlusal height of teeth for extensive oral reconstruction is whether, A. the inter occlusal distance will be physiologically acceptable after treatment B. there will be sufficient tooth bulk in the abutment teeth for proper retention of the crowns C. at least two third of the original alveolar process will remain for adequate periodontal support D. the aesthetic appearance of the patient will improve sufficiently to warrant the planned reconstruction

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Last Answer : A. the inter occlusal distance will be physiologically acceptable after treatment

The most common cause of porosity in porcelain jacket crowns is, A. Moisture contamination B. Excessive firing temperature C. Failure to anneal the platinum matrix D. Excessive condensation of the porcelain E. Inadequate condensation of the porcelain

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Last Answer : E. Inadequate condensation of the porcelain

The main factor controlling a decision to increase the occlusal height of teeth for extensive oral reconstruction is whether, A. The inter occlusal distance will be physiologically acceptable after treatment B. There will be sufficient tooth bulk in the abutment teeth for proper retention of the crowns C. At least two third of the original alveolar process will remain for adequate periodontal support D. The aesthetic appearance of the patient will improve sufficiently to warrant the planned reconstruction

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Last Answer : A. The inter occlusal distance will be physiologically acceptable after treatment

When primary molars are prepared for stainless steel crowns, should the depth for reduction of the proximal surface be similar to the depth of the buccal and lingual surfaces? A. Yes; reduction of all wall is similar for best retention B. No, proximal reduction is greater to allow the crown to pass the contact area C. No, the buccal surfaces has the greatest reduction to remove the cervical bulge D. Yes, all undercuts are uniformly removed so that the steel crown can be seated E. No, because of lateral constriction, the lingual surface needs greatest reduction

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Last Answer : B. No, proximal reduction is greater to allow the crown to pass the contact area

In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of (a) appearance of the darker coloured individuals due to very poor sunlight (b) protective mimicry (c) inheritance of darker colour character acquired due to the darker environment (d) natural selection whereby the darker forms were selected.

Description : In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of (a) ... acquired due to the darker environment (d) natural selection whereby the darker forms were selected.

Last Answer : (d) natural selection whereby the darker forms were selected.

What is correct in regard to high copper amalgam, A. Reacts and strengthens the amalgam by its dispersion properties B. Reacts to form copper-tin phase thereby eliminating the tin-mercury phase C. Reacts to form copper-silver phase thereby eliminating the silver mercury phase D. Reacts and strengthens the amalgam by its grain diffusion

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Last Answer : B. Reacts to form copper-tin phase thereby eliminating the tin-mercury phase

What is CORRECT in regard to the periodontal surface area in mandibular teeth: A. First molar> first premolar> second premolar (max) B. Canine> first premolar> second premolar. (max) C. Canine> lateral incisor> central incisor

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Last Answer : C. Canine> lateral incisor> central incisor

What is NOT CORRECT in regard to the lingual nerve: A. It is posterior and medial to the inferior alveolar nerve B. It passes close to the mandibular 3rd molar C. It may be anaesthetised by the mandibular nerve block D. It provides supply to the lingual gingiva E. Supplies anterior 2/3 of the tongue

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Last Answer : A. It is posterior and medial to the inferior alveolar nerve

While giving CPR which of the following is correct: A. It achieves 30% of cardiac output with 60 compressions per minute B. It achieves normal blood oxygen levels with 12 reseparations per minute C. You have to check compression point by thumping before starting compression D. Cardiac output has to be monitored regularly by checking radial pulse.

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Last Answer : C. You have to check compression point by thumping before starting compression

Which of the following is true regarding preparation of custom tray for elastomeric impression: a. Adhesive is preferred over perforation. b. Perforation provides adequate retention c. Adhesive is applied immediately before procedure d. Perforations are not made in the area over the prepared tooth .

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Last Answer : a. Adhesive is preferred over perforation.

.Which of the following is true regarding preparation of custom tray for elastomeric impression: A. Adhesive is preferred over perforation B. Perforation provides adequate retention C. Adhesive is applied immediately before procedure D. Perforations are not made in the area over the prepared tooth

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Last Answer : A. Adhesive is preferred over perforation

An impression with elastomer in custom tray has been taken for crown preparation; it will be two days before the impression gets to the laboratory for construction of the crown. Which impression material is preferred? A. Polyether B. Thiokol or meraptan rubber C. Condensation silicone D. Vinyl polysiloxane

Description : An impression with elastomer in custom tray has been taken for crown preparation; it will be two days before the impression gets to the laboratory for construction of the crown. Which impression ... A. Polyether B. Thiokol or meraptan rubber C. Condensation silicone D. Vinyl polysiloxane

Last Answer : D. Vinyl polysiloxane

.In minor oral surgery which is TRUE in regard to antibiotics: a. Amoxil is satisfactory against most oral infection. b. Metronidazole and Amoxil have the same penetrating power. c. It is evident that it will reduce post operative swelling.

Description : .In minor oral surgery which is TRUE in regard to antibiotics: a. Amoxil is satisfactory against most oral infection. b. Metronidazole and Amoxil have the same penetrating power. c. It is evident that it will reduce post operative swelling.

Last Answer : a. Amoxil is satisfactory against most oral infection.

In regard to Benzodiazepines: a. Increases R.E.M. sleep. b. Has a hangover effects because of active metabolism. c. Includes carbamazepine. d. Can be used safely on children as it achieves reliable effects.

Description : In regard to Benzodiazepines: a. Increases R.E.M. sleep. b. Has a hangover effects because of active metabolism. c. Includes carbamazepine. d. Can be used safely on children as it achieves reliable effects.

Last Answer : b. Has a hangover effects because of active metabolism.

Which of the following is false in regard to Cleft. Palate? a. May be submucous. b. More common in males than females c. Predispose to speech defects, orthodontics problem and hearing loss. d. Patients are more likely to have cardiovascular defect than the general population.

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Last Answer : b. More common in males than females

In regard to Universal currete what is true? a- You can use both ends equally. b- You can use one end only. c- Angle of shank and blade is 70 degrees. d- You can use it for specific area. e- It has very rigid handle.

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Last Answer : a- You can use both ends equally.

Which of the following is true in regard to smoking, A. Smokers keratosis is common but metaplasia activity is not recognised B. Redox potential is increased resulting in aerobic bacteria C. Tissue perfusion is decreased resulting in increased infection

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Last Answer : A. Smokers keratosis is common but metaplasia activity is not recognised

In regard to periapical lesions, what is TRUE: A. Are predominantly anaerobic B. Must be treated by antibiotics C. Must always treated by surgery

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What is TRUE in regard to Basal Cell Carcinoma A. Metastasis is common B. Erodes bone C. More common in oriental races D. Cannot occur in oral mucosa according to definition

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Last Answer : D. Cannot occur in oral mucosa according to definition

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In regard to marginal leakage in amalgam: A. The wider the gap the better the chance of secondary caries B. Seal the margin with fissure sealant would prevent further breakdown C. Secondary caries may develop

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Last Answer : A. The wider the gap the better the chance of secondary caries

In regard to apically displaced flap, what is TRUE: A. Does not preserve attached gingivae B. Does not lengthen crown of tooth C. Is a pocket elimination procedure D. A & C

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Last Answer : C. Is a pocket elimination procedure

In regard to external resorption:** A. Continues after successful endo treatment B. Stops in most cases following successful endodontic treatment C. Continues only in mandibular incisors after successful endo treatment D. Stops in maxillary lateral incisors after successful endodontic treatment E. None of the above

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Last Answer : B. Stops in most cases following successful endodontic treatment

In regard to the enamel surface: A. It is a perfect substance for bonding B. It does not conform to the bonding requirements C. It is the most inorganic, rough part D. It is free from contamination and roughness E. None of the above

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Last Answer : B. It does not conform to the bonding requirements

In regard to Plummer-Vincent syndrome or “Paterson and Kelly syndrome”: A. Iron deficiency is a feature B. Atrophic oral and gastric mucosa C. Dysphagia and angular cheilitis D. Predisposing oral cancer E. All of the above

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Last Answer : E. All of the above

What is wrong in regard to (water jet spray) hydrotherapy: A. Does not harm gingivae B. Removes plaque C. Removes required pellicle

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Last Answer : B. Removes plaque

In regard to third molar surgery: A. Maximum swelling is seen after 24-48 hours B. Prophylactic antibiotic will reduce swelling C. Antibiotic cover is compulsory

Description : In regard to third molar surgery: A. Maximum swelling is seen after 24-48 hours B. Prophylactic antibiotic will reduce swelling C. Antibiotic cover is compulsory

Last Answer : A. Maximum swelling is seen after 24-48 hours

In minor oral surgery, what is TRUE in regard to antibiotics: A. Amoxil is satisfactory against most oral infections B. Metronidazole and Amoxil have the same penetrating power C. It is evident that it will reduce post operative swelling

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Last Answer : A. Amoxil is satisfactory against most oral infections

In regard to Benzodiazepines: A. Increases R.E.M. sleep B. Has a hangover effects because of active metabolism C. Includes carbamazepine D. Can be used safely on children as it achieves reliable effects

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Last Answer : B. Has a hangover effects because of active metabolism

What is true in regard to lateral mandibular incisors A. 20% have 2 canals with one foramen B. 20% have 2 canals with two foramina C. 40% have two canals with 10% ending in two foramina D. 40% have two canals with only one ending in two foramina

Description : What is true in regard to lateral mandibular incisors A. 20% have 2 canals with one foramen B. 20% have 2 canals with two foramina C. 40% have two canals with 10% ending in two foramina D. 40% have two canals with only one ending in two foramina

Last Answer : D. 40% have two canals with only one ending in two foramina

Which of the following is NOT TRUE in regard to lateral periodontal cyst** A. It is more common in anterior region B. It occurs more in maxilla than mandible C. Probable origin is from dentigerous cyst which develops laterally D. Encountered in the cuspid-premolar region of the mandible, derived from the remnants of the dental lamina

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Last Answer : A. It is more common in anterior region B. It occurs more in maxilla than mandible

Which of the following is true in regard to periapical cementoma: A. Teeth are vital. B. Teeth are not vital

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Last Answer : A. Teeth are vital.

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Last Answer : B. Hard in room temperature

Which of the following is false in regard to Cleft-Palate? A. May be submucous B. More common in males than females C. Predispose to speech defects, orthodontics problem and hearing loss D. Patients are more likely to have cardiovascular defect than the general

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Last Answer : B. More common in males than females

.In regard to the glass of quartz particles of filling restorative resin; the microfill resins tend to have, A. A higher coefficient of thermal expansion and a higher crashing strength B. A higher coefficient of thermal expansion and a lower crashing strength C. A lower coefficient of thermal expansion and a higher crashing strength D. A lower coefficient of thermal expansion and a lower crashing strength

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Last Answer : B. A higher coefficient of thermal expansion and a lower crashing strength

In regard to carbide burs; the more number of cutting blades and low speed will result in: A. Less efficient cutting and a smoother surface B. Less efficient cutting and a rougher surface C. More efficient cutting and a smoother surface D. More efficient cutting and a rougher surface

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Last Answer : A. Less efficient cutting and a smoother surface

The fovea palatini is a landmark to determine the posterior bonds of upper denture in which regard: A. Post dam B. Flanges

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Last Answer : A. Post dam