Porcelain must not be contaminated by handling between which two stages: A. Pre-soldering and heat treatment B. Heat treatment and opaque /bake/ stages C. Opaque and bisque stages D. Bisque and glazing stages E. First opaque bake and second opaque bake

Porcelain must not be contaminated by handling between which two stages:
A. Pre-soldering and heat treatment
B. Heat treatment and opaque /bake/ stages
C. Opaque and bisque stages
D. Bisque and glazing stages
E. First opaque bake and second opaque bake
by

1 Answer

Answer :

A. Pre-soldering and heat treatment
by

Related questions

When should metallic framework not be contaminated during the fabrication of a porcelain fused to metal crown: A. Between bisque stage and glazing stage B. Between preheat and opaque stages C. Between opaque and bisque stages D. Between one opaque and two opaque stages

Description : When should metallic framework not be contaminated during the fabrication of a porcelain fused to metal crown: A. Between bisque stage and glazing stage B. Between preheat and opaque stages C. Between opaque and bisque stages D. Between one opaque and two opaque stages

Last Answer : B. Between preheat and opaque stages

“Pop off” of a porcelain veneer from the under the lying gold crown is due to:** A. Too thick application of pure gold surface conditioner B. Contamination at the porcelain metal interface C. Under firing the opaque layer D. All of the above

Description : “Pop off” of a porcelain veneer from the under the lying gold crown is due to:** A. Too thick application of pure gold surface conditioner B. Contamination at the porcelain metal interface C. Under firing the opaque layer D. All of the above

Last Answer : B. Contamination at the porcelain metal interface

How many coats of glazing can be put on a bisque fired vessel?

Description : How many coats of glazing can be put on a bisque fired vessel?

Last Answer : answer:It depends on the formulation of the glaze and the thickness of the coats. If it's a glaze with a high alumina content that stays put, then you should be fine; a runnier glaze will run even ... too thick, you can always wash it off the bisque, let the bisque dry completely, and start over.

For sanitary pipes and chemical stonewares, (A) Salt glazing is used (B) Lead glazing is used (C) Opaque glazing is used (D) None of thes

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Last Answer : Answer: Option A

If a delicate component must be soldered into a circuit, the component may be protected from the heat of the soldering process by _____________. A. operating the soldering gun not more than 60 seconds at a time B. using a thermal shunt C. pre-oxidizing the leads to be soldered D. coating the leads to be soldered with a light oil film

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Last Answer : Answer: B

What is NOT characteristic of root canal filing materials (“obturation material”) A. Tacky adhesive to walls B. Radio opaque C. Not irritating D. Quick in setting

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Last Answer : D. Quick in setting

Which of the following is NOT CHARACTERISTIC of trigeminal neuralgia?** A. The pain usually last for few seconds up to a minute in the early stages of the disease B. The pain is usually unilateral C. Patient characteristically have sites on the skin that when stimulated precipitate an attack of pain D. An attack of pain is usually preceded by sweating in the region of the forehead E. It is a paroxysmal in nature and may respond to the treatment with Carbamazepine

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The minimal labial tooth reduction for satisfactory aesthetics with porcelain fused to metal crown is, A. 1mm B. The full thickness of enamel C. 1.5 mm D. 2.5mm E. One third of the dentine thickness

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Last Answer : C. 1.5 mm

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

Description : 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

Last Answer : E. Inadequate condensation of the porcelain

The clinical advantage of porcelain laminate veneers over composite resin veneers is: A. Color stability and resistance to abrasion B. Availability of self-curing or light activated placement (yes but not necessary a clinical advantage) C. Minimal over-contouring of the treated teeth ( not necessarily true depends on the dentist's abilities) D. May be used in edge to edge occlusion or Class III relationships.

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Last Answer : A. Color stability and resistance to abrasion

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

The advantage of firing porcelain in vacuum:** A. Reduces size of air-bubbles incorporated thus decreasing porosity B. Removes water before firing, increasing the hardness of porcelain C. Significantly lowers firing temperature

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Last Answer : A. Reduces size of air-bubbles incorporated thus decreasing porosity

A labially displaced anterior tooth is restored with a gold core porcelain jacket crown so that it is in line with the arch; the crown will appears: A. Short B. Long C. Narrow D. Wide

Description : A labially displaced anterior tooth is restored with a gold core porcelain jacket crown so that it is in line with the arch; the crown will appears: A. Short B. Long C. Narrow D. Wide

Last Answer : C. Narrow

The major cause of jacket crown breakage is, A. Inclusion of platinum foil B. Use of weak cementum C. Voids of porcelain D. Porcelain is thinner than 1mm

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Last Answer : D. Porcelain is thinner than 1mm

The most common failure in constructing porcelain to metal is: A. Improper metal framework B. Rapid heating

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Last Answer : A. Improper metal framework

Rough surface/Porosity of porcelain is a result of: A. Lack of compression/ condensation B. Sudden high temperature

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Last Answer : A. Lack of compression/ condensation

If amalgam gets contaminated with moisture, the most uncommon result is:** A. Blister formation B. Post operative pain C. Secondary caries D. Lower compressive strength

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Last Answer : C. Secondary caries

An adult patient with a history of bacterial endocarditis requires prophylactic administration of antibiotics prior to removal of teeth. Indicate the pre-operative regimen:** A. Amoxicillin 2 gram one hour before operation orally B. Penicillin 250 mg orally six hours before operation C. Tetracycline 250-500 mg orally 2 hours before treatment

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Last Answer : A. Amoxicillin 2 gram one hour before operation orally

Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin

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Last Answer : (D) Brass, cast iron, mild steel and tin

To achieve optimum cavity preparation, which of the following factors of internal anatomy must be considered in root canal treatment: A. Outline form B. The age and shape of pulp chamber; in addition to the direction of individual root canals. C. Internal external relationship D. Intra-coronal preparation E. None of the above

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Last Answer : B. The age and shape of pulp chamber; in addition to the direction of individual root canals.

In testing for mobility, which of the following statement is true:** M07 A. Heavy pressure must sometimes be used to test mobility B. Only lateral mobility is significant in diagnosis and treatment of chronic inflammatory periodontal disease C. Hyper mobility indicates that the tooth supporting structures have been weakened D. During the periodontal examination each tooth should be tested individually for hyper mobility E. Reliance on radiograph is essential

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Last Answer : D. During the periodontal examination each tooth should be tested individually for hyper mobility

A healthy 6 years-old child presents with carious maxillary second primary molar with a necrotic pulp. Which treatment would be preferred? A. Extraction B. Indirect pulp treatment C. Pulpotomy (it's done to preserve the vitality of the roots and allow normal exfoliation) D. Pulpectomy to preserve the tooth as a space manteiner. E. Antibiotic coverage

Description : A healthy 6 years-old child presents with carious maxillary second primary molar with a necrotic pulp. Which treatment would be preferred? A. Extraction B. Indirect pulp treatment C. ... normal exfoliation) D. Pulpectomy to preserve the tooth as a space manteiner. E. Antibiotic coverage

Last Answer : D. Pulpectomy to preserve the tooth as a space manteiner.

Which of the following anomalies occurs during the initiation and proliferation stages of tooth development A. Amelogenesis imperfecta (developmental defect) B. Dentinogenesis imperfecta (developmental defect) C. Enamel hypoplasia (AI type) D. Oligodontia E. Ankylosis

Description : Which of the following anomalies occurs during the initiation and proliferation stages of tooth development A. Amelogenesis imperfecta (developmental defect) B. Dentinogenesis imperfecta (developmental defect) C. Enamel hypoplasia (AI type) D. Oligodontia E. Ankylosis

Last Answer : D. Oligodontia

In testing for mobility, which of the following statement is true: a.Heavy pressure must sometimes be used to test mobility. b.Only lateral mobility is significant in diagnosis and treatment of chronic inflammatory periodontal disease. c.Hyper mobility indicates that the tooth supporting structure have been weakened. d.During the periodontal examination each tooth should be tested individually for hyper mobility.

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Last Answer : d.During the periodontal examination each tooth should be tested individually for hyper mobility.

Paget’s disease shows in the late stages in jaws: a. Cotton wool. b. Ground glass. c. Orange peel. d. Beaten copped.

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Last Answer : a. Cotton wool.

Which of the following is TRUE about syphilis: A. The spirochetes disseminate rapidly throughout the body within 24hour after contact B. Both the primary chancre and the secondary mucous patch stages of the disease are highly infectious C. Only the lesions of the primary and secondary stages are contagious D. All of the above

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Last Answer : D. All of the above

What type of features does Paget’s disease ( osteitis deformans) show in the early stages in the oral mucosa: A. Cotton wool B. Ground glass C. Orange peel D. Beaten copped

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Last Answer : B. Ground glass

Which is the right sequence of the histological stages of tooth development? M07 A. Initiation, proliferation, histodifferentiation, morphodifferentiation, mineralization B. Proliferation, initiation, histodifferentiation, morphodifferentiation, mineralization C. Proliferation, morphodifferentiation, histodifferentiation, mineralization D. Initiation, proliferation, morphodifferentiation, histodifferentiation, mineralization

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Last Answer : A. Initiation, proliferation, histodifferentiation, morphodifferentiation, mineralization

A 50 years old man presents after a full mouth extraction complaining that he “bled all night”. Which of the following pre existing conditions could be responsible for the post operative bleeding: A. Blood pressure reading of 180/110 B. Gastric ulcer C. Elevated prothrombin time D. A & C are correct E. None of the above

Description : A 50 years old man presents after a full mouth extraction complaining that he bled all night . Which of the following pre existing conditions could be responsible for the post operative bleeding: A. Blood ... ulcer C. Elevated prothrombin time D. A & C are correct E. None of the above

Last Answer : D. A & C are correct

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 PH of fluoride C. Increase exposure time to topical fluoride D. Pre-treat enamel with 0.5% phosphoric acid E. Use NH4F instead of NaF

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

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 fluoride in solutions B. Raise the PH of the fluoride solution C. Increase the exposure time to topical fluoride D. Pre-treat the enamel with 0.5% phosphoric acid E. Use NH4F rather than NaF at a lower PH

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

A 50 years-old man presented after a full mouth extraction complaining that he ”bled all night”. Which of the following pre. existing conditions could be responsible for the post operative bleeding: a. Blood pressure reading of 140/80 b. Gastric ulcer. c. Elevated prothrombin time. d. None of the above.

Description : A 50 years-old man presented after a full mouth extraction complaining that he bled all night . Which of the following pre. existing conditions could be responsible for the post operative bleeding: a. Blood ... 140/80 b. Gastric ulcer. c. Elevated prothrombin time. d. None of the above.

Last Answer : c. Elevated prothrombin time.

How do prepare a patient with rheumatic fever before extraction: A. 6000000 units of benzoyl penicillin B. 2g Amoxicillin pre-operatively

Description : How do prepare a patient with rheumatic fever before extraction: A. 6000000 units of benzoyl penicillin B. 2g Amoxicillin pre-operatively

Last Answer : B. 2g Amoxicillin pre-operatively

The principal factor involved in oral para-function is related to: A. Periods of stress B. Occlusal pre-maturities during mandibular closure

Description : The principal factor involved in oral para-function is related to: A. Periods of stress B. Occlusal pre-maturities during mandibular closure

Last Answer : B. Occlusal pre-maturities during mandibular closure

What exactly is the difference between soup and bisque?

Description : What exactly is the difference between soup and bisque?

Last Answer : Soup, the generic) is generaly slurpy and eaten w. a spoon or drunk from a cup.. Bisque is soup and has things in it like lobster, if you are lucky.

What other colors are available, and what is the difference between Bisque and Biscuit?

Description : What other colors are available, and what is the difference between Bisque and Biscuit?

Last Answer : You can get this microwave in bisque, white, black and stainless steel. So it will fit any kitchen style. Biscuit and bisque mean the same color. Terminology depends on a manufacturer.

Potato Parsley Bisque?

Description : Potato Parsley Bisque?

Last Answer : Ingredients1 c Raw almonds or cashews5 c Vegetable stock or bouillon1 lb Red-skinned potatoesunpeeled, cut into 1/2-inch cubes 2 md Leeks; sliced(thoroughly washed) 1 c Finely chopped fresh parsley1 ... soup to a food processor and process, in batches if necessary, until smooth. Serve immediately.

Lobster Bisque recipe

Description : Lobster Bisque recipe

Last Answer : Ingredients: 1 c. chicken broth 2 onions, sliced 2 Tbsp butter 2 Tbsp flour 2 c. milk ½ tsp salt 1 lb lobster meat, cooked and cubed ½ tsp Worcestershire sauce 1 pinch ... until combined. Stir in Worcestershire sauce and cayenne pepper. Heat until soup is almost boiling, and serve hot.

During a general briefing at the pre-flight stage, the captain should emphasize: a. The complete delegation of all duties b. The importance of crew coordination c. The priority of departing on schedule d. The avoidance of inadequate handling of controls

Description : During a general briefing at the pre-flight stage, the captain should emphasize: a. The complete delegation of all duties b. The importance of crew coordination c. The priority of departing on schedule d. The avoidance of inadequate handling of controls

Last Answer : b. The importance of crew coordination

During a general briefing at the pre-flight stage, the captain should emphasize: a. The complete delegation of all duties b. The importance of crew coordination c. The priority of departing on schedule d. The avoidance of inadequate handling of controls

Description : During a general briefing at the pre-flight stage, the captain should emphasize: a. The complete delegation of all duties b. The importance of crew coordination c. The priority of departing on schedule d. The avoidance of inadequate handling of controls

Last Answer : b. The importance of crew coordination

The step-in personal selling process after completion of pre-approach step is called A. prospecting and qualifying B. handling objections C. approach D. presentation and demonstration

Description : The step-in personal selling process after completion of pre-approach step is called A. prospecting and qualifying B. handling objections C. approach D. presentation and demonstration

Last Answer : C. approach

The third step in personal selling process after completion of pre-approach step is to A. prospecting and qualifying B. handling objections C. approach D. presentation and demonstration

Description : The third step in personal selling process after completion of pre-approach step is to A. prospecting and qualifying B. handling objections C. approach D. presentation and demonstration

Last Answer : C. approach

Two successive negative cultures are: A. Absolutely necessary for successful endodontic treatment B. Not always necessary for successful endodontic treatment C. Not questioned today as a dogmatic requirement in endodontics D. Unquestioningly it adhered for successful endodontic treatment E. None of the above

Description : Two successive negative cultures are: A. Absolutely necessary for successful endodontic treatment B. Not always necessary for successful endodontic treatment C. Not questioned today as a dogmatic ... D. Unquestioningly it adhered for successful endodontic treatment E. None of the above

Last Answer : B. Not always necessary for successful endodontic treatment

An 8 years-old child who has sustained a fracture of maxillary permanent central incisor in which 2mm of the pulp is exposed presents for treatment three hours after injury. Which of the following should be considered? a- Remove the surface 1. 2 mm of pulp tissue and place calcium hydroxide. b- Place calcium hydroxide directly on the exposed pulp. c- Pulpotomy using formocresol. d- Pulpectomy and immediate root filling. e- Pulpectomy and apexification.

Description : An 8 years-old child who has sustained a fracture of maxillary permanent central incisor in which 2mm of the pulp is exposed presents for treatment three hours after injury. Which of the ... - Pulpotomy using formocresol. d- Pulpectomy and immediate root filling. e- Pulpectomy and apexification.

Last Answer : a- Remove the surface 1. 2 mm of pulp tissue and place calcium hydroxide

A patient on dicoumarol treatment needs extraction. Which of the following is MOST valuable in evaluating surgical risks: A. Clotting time B. Bleeding time C. Prothrombin time D. Sedimentation rate E. Complete blood cell count

Description : A patient on dicoumarol treatment needs extraction. Which of the following is MOST valuable in evaluating surgical risks: A. Clotting time B. Bleeding time C. Prothrombin time D. Sedimentation rate E. Complete blood cell count

Last Answer : C. Prothrombin time

X rays are used in endodontic treatment to: A. Aid in the diagnosis of periapical hard tissue lesion B. Determine the number, location, shape, size and direction of roots and root canals C. Confirm the length of root canals D. Evaluate the adequacy of the complete root canal filling E. All of the above

Description : X rays are used in endodontic treatment to: A. Aid in the diagnosis of periapical hard tissue lesion B. Determine the number, location, shape, size and direction of roots and root canals C. Confirm ... root canals D. Evaluate the adequacy of the complete root canal filling E. All of the above

Last Answer : E. All of the above

The concomitant perio-periapical lesion as the cause of endodontic failure: A. Cannot be discovered prior to endo treatment B. May be discovered prior to endo treatment C. Is most commonly found in maxillary teeth D. Is most commonly found in mandibular teeth E. None of the above

Description : The concomitant perio-periapical lesion as the cause of endodontic failure: A. Cannot be discovered prior to endo treatment B. May be discovered prior to endo treatment C. Is most commonly found in maxillary teeth D. Is most commonly found in mandibular teeth E. None of the above

Last Answer : B. May be discovered prior to endo treatment

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

Description : 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 ... D. Stops in maxillary lateral incisors after successful endodontic treatment E. None of the above

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