Conservative Dentistry Trivia Quiz!

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| By Ismayilpkn4
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Ismayilpkn4
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Quizzes Created: 9 | Total Attempts: 21,676
Questions: 20 | Attempts: 1,680

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Conservative Dentistry Trivia Quiz! - Quiz

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Questions and Answers
  • 1. 

    Time was added in the keys diagram by?

    • A.

      Newbrun

    • B.

      Hofrath

    • C.

      Keyes

    • D.

      None

    Correct Answer
    A. Newbrun
    Explanation
    It is unclear what the "keys diagram" refers to in this question. Without further context or information, it is not possible to provide a meaningful explanation for why time was added in the diagram by Newbrun.

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  • 2. 

    Preparing a depth of 0.2-0.8 mm pulpally comes under?

    • A.

      Primary resistance form

    • B.

      Outline form

    • C.

      Retention form

    • D.

      All

    Correct Answer
    B. Outline form
    Explanation
    Preparing a depth of 0.2-0.8 mm pulpally comes under the category of outline form. The outline form is the initial step in dental preparation, where the outer shape of the tooth is established. It involves removing the decayed or damaged tooth structure and creating a smooth, well-defined outline that will guide the subsequent steps of tooth preparation. The depth mentioned in the question falls within the range typically considered for establishing the outline form.

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  • 3. 

    Reverse bevel is given at?

    • A.

      Mesiobuccal line angle

    • B.

      Axiogingival line angle

    • C.

      Both

    • D.

      None

    Correct Answer
    B. Axiogingival line angle
    Explanation
    The correct answer is "Axiogingival line angle." The axiogingival line angle refers to the angle formed by the junction of the axiogingival line and the tooth surface. A reverse bevel is a type of bevel that is placed on the axiogingival line angle of a tooth preparation. This bevel is created by removing a small portion of the tooth structure at the axiogingival line angle in a reverse direction. By placing a reverse bevel at the axiogingival line angle, the restoration can have better retention and resistance to displacement.

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  • 4. 

    Bevelling is avoided in?

    • A.

      Gold foil restoration

    • B.

      Cast gold restoration

    • C.

      Ceramic restoration

    • D.

      All

    Correct Answer
    C. Ceramic restoration
    Explanation
    Bevelling is avoided in ceramic restoration because ceramic materials are brittle and prone to chipping or fracturing. Bevelling involves creating an angled edge on the restoration to improve its fit and aesthetics. However, in ceramics, this can weaken the restoration and increase the risk of fracture. Therefore, it is best to avoid bevelling in ceramic restorations to ensure their strength and longevity.

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  • 5. 

    A number of point angles in class II restoration are?

    • A.

      4

    • B.

      6

    • C.

      8

    • D.

      All

    Correct Answer
    B. 6
    Explanation
    Class II restorations are typically used to restore cavities in the posterior teeth, specifically in the premolars and molars. These restorations involve the removal of decayed tooth structure and the placement of a filling material. The point angle refers to the junction of three surfaces on a tooth. In a class II restoration, there are six point angles: two mesial point angles, two distal point angles, and two occlusal point angles. Therefore, the correct answer is 6.

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  • 6. 

    High cutting efficiency is seen in?

    • A.

      Carbon steel

    • B.

      Stainless steel

    • C.

      Both are same

    • D.

      None

    Correct Answer
    A. Carbon steel
    Explanation
    Carbon steel has a higher cutting efficiency compared to stainless steel. This is because carbon steel has a higher carbon content, which makes it harder and stronger than stainless steel. The increased hardness allows carbon steel to retain its sharpness for longer periods and withstand higher cutting forces. On the other hand, stainless steel contains a higher amount of chromium, which improves its corrosion resistance but makes it softer and less efficient for cutting purposes. Therefore, carbon steel is the preferred choice when high cutting efficiency is required.

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  • 7. 

    Width of the blade is measured in?

    • A.

      In millimetres

    • B.

      In tenth of millimetres

    • C.

      Both

    • D.

      None

    Correct Answer
    B. In tenth of millimetres
    Explanation
    The width of the blade is measured in tenth of millimetres because it provides a more precise measurement compared to measuring in millimetres. Measuring in tenth of millimetres allows for finer adjustments and accuracy when working with blades, especially in industries such as manufacturing or carpentry where precision is crucial. Measuring in both millimetres and tenth of millimetres would be redundant, and measuring in none would not provide any measurement at all.

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  • 8. 

    Wedging used in patients with the interproximal recession?

    • A.

      Double wedging

    • B.

      Piggy back wedging

    • C.

      Wedge wedging

    • D.

      All

    Correct Answer
    B. Piggy back wedging
    Explanation
    Piggy back wedging is the correct answer because it refers to a technique used in patients with interproximal recession. This technique involves placing two wedges side by side, with one wedge acting as a support for the other. This helps to create a stable base and provides better isolation of the tooth being worked on. Double wedging, wedge wedging, and all are not specific techniques used for interproximal recession.

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  • 9. 

    Glass ionomer type used in orthodontic cement?

    • A.

      Type ,V

    • B.

      Type IV

    • C.

      Type III

    • D.

      Nond

    Correct Answer
    A. Type ,V
    Explanation
    Type V glass ionomer cement is commonly used in orthodontics as an adhesive for bonding brackets to teeth. It has a high bond strength, good flowability, and releases fluoride, which helps in preventing tooth decay. This type of cement is also known for its easy handling and quick setting time, making it suitable for orthodontic procedures.

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  • 10. 

    Cast gold is not used in?

    • A.

      Deciduous teeth

    • B.

      Young age

    • C.

      Both

    • D.

      None

    Correct Answer
    C. Both
    Explanation
    Cast gold is not used in both deciduous teeth and young age. Deciduous teeth are temporary teeth that are eventually replaced by permanent teeth, so it is not necessary to use cast gold in them. Additionally, young age refers to children who are still growing and developing, and their dental needs may be better addressed using other materials or treatments. Therefore, cast gold is not used in both of these situations.

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  • 11. 

    Gingival bevel given in class II inlay preparation is?-

    • A.

      60 degree

    • B.

      45 degree

    • C.

      30 dgree

    • D.

      All

    Correct Answer
    B. 45 degree
    Explanation
    The correct answer is 45 degrees. In class II inlay preparation, a gingival bevel is used to create an angle on the gingival margin of the tooth preparation. This bevel helps to provide a smooth transition between the tooth structure and the restoration, reducing the risk of plaque accumulation and improving the longevity of the restoration. A 45-degree bevel is commonly used in class II inlay preparations to achieve these benefits.

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  • 12. 

    The cove is used for?

    • A.

      Primary retention

    • B.

      Secondary retention

    • C.

      Resistance form

    • D.

      All

    Correct Answer
    B. Secondary retention
    Explanation
    Secondary retention refers to the use of undercuts or mechanical features in a dental restoration to enhance its stability and prevent dislodgement. The cove, a concave area in the preparation of a tooth, can be utilized to provide secondary retention by creating an undercut that helps in retaining the dental material. Therefore, the cove is used for secondary retention.

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  • 13. 

    For posterior class 2 which type of amalgam is used?

    • A.

      Admixed low copper

    • B.

      Lathe cut low copper

    • C.

      Admixed high copper

    • D.

      None

    Correct Answer
    C. Admixed high copper
    Explanation
    The correct answer is "Admixed high copper" because posterior class 2 amalgam restorations require a strong and durable material. Admixed high copper amalgam has a higher copper content, which improves its strength and corrosion resistance. This type of amalgam is commonly used for posterior restorations where the chewing forces are greater.

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  • 14. 

    For porcelain inlay the taper used is?

    • A.

      4-5 degree per wall

    • B.

      6-8 degree per wall

    • C.

      10 degree

    • D.

      None

    Correct Answer
    B. 6-8 degree per wall
    Explanation
    The taper used for porcelain inlay is 6-8 degrees per wall. This means that the walls of the preparation for the porcelain inlay should have a slight divergence of 6-8 degrees from the vertical axis. This taper is necessary to ensure proper retention and resistance of the restoration, as well as to facilitate the insertion and removal of the inlay. A taper that is too shallow may result in inadequate retention, while a taper that is too steep may compromise the structural integrity of the tooth.

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  • 15. 

    Powder liquid ratio of MTA?

    • A.

      1:3

    • B.

      3:1

    • C.

      2:1

    • D.

      1:1

    Correct Answer
    B. 3:1
    Explanation
    The correct answer is 3:1. This ratio refers to the powder-to-liquid ratio of MTA (Mineral Trioxide Aggregate) which is a dental material commonly used in endodontic procedures. The 3:1 ratio means that for every 3 parts of powder, 1 part of liquid is used to mix the MTA. This specific ratio is important as it ensures the proper consistency and setting properties of the MTA, allowing it to effectively seal and repair dental structures.

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  • 16. 

    When pins are used in amalgam its strength?

    • A.

      Increases

    • B.

      Decreases

    • C.

      Remains same

    • D.

      None

    Correct Answer
    B. Decreases
    Explanation
    When pins are used in amalgam, their presence creates additional stress concentration points within the material. This leads to a decrease in the overall strength of the amalgam. The stress concentration points can act as weak spots, making the material more prone to fracture or failure. Therefore, the strength of the amalgam decreases when pins are used.

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  • 17. 

    Inter proximal carious lesion is seen on?

    • A.

      Lingual to contact area

    • B.

      Buccal to contact area

    • C.

      Gingival to contact area

    • D.

      None

    Correct Answer
    C. Gingival to contact area
    Explanation
    This answer is correct because an interproximal carious lesion refers to a cavity or decay that occurs between two adjacent teeth. The gingival to contact area refers to the area near the gum line where the two teeth make contact. Therefore, it is the most likely location for an interproximal carious lesion to be seen. The other options, lingual to contact area and buccal to contact area, refer to the areas on the tongue side and cheek side of the teeth, respectively, which are less likely to be affected by interproximal caries.

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  • 18. 

    For a cast inlay, the walls should?

    • A.

      Diverge

    • B.

      Converge

    • C.

      Either

    • D.

      None

    Correct Answer
    A. Diverge
    Explanation
    For a cast inlay, the walls should diverge. Diverging walls refer to the walls of the prepared tooth being slightly wider at the occlusal surface compared to the base of the preparation. This tapering allows for easier insertion and removal of the cast inlay. It also helps in achieving proper retention and resistance form for the restoration. Converging walls would make it difficult to insert and remove the inlay, and may compromise the fit and stability of the restoration.

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  • 19. 

    Activator in self-cure resin?

    • A.

      Benzoin dimethyl ether

    • B.

      Tertiary amine

    • C.

      Both

    • D.

      None

    Correct Answer
    B. Tertiary amine
    Explanation
    The correct answer is tertiary amine. Tertiary amine is commonly used as an activator in self-cure resin systems. It acts as a catalyst, promoting the polymerization reaction and accelerating the curing process. This helps to ensure that the resin sets and hardens properly. Benzoin dimethyl ether is not typically used as an activator in self-cure resins, and the option "both" suggests that both benzoin dimethyl ether and tertiary amine are activators, which is not accurate. The option "none" implies that there is no activator required, which is also incorrect.

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  • 20. 

    In pin retained amalgam the ideal ratio of the pin to dentin and outside?

    • A.

      1:2

    • B.

      3:1

    • C.

      2:1

    • D.

      1:1

    Correct Answer
    C. 2:1
    Explanation
    The ideal ratio of the pin to dentin and outside in pin retained amalgam is 2:1. This means that the length of the pin should be twice the thickness of the dentin and the outer layer combined. This ratio ensures proper retention and stability of the amalgam restoration.

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