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Viva question and answers related to different types of Dental burs

Below are some viva questions and answers related to different types of dental burs:

  1. Question: What is the purpose of a round bur in dentistry?
    • Answer: A round bur is commonly used for initial entry into a tooth, creating access points, and starting the shaping process during cavity preparation.
  1. Question: Explain the difference between a fissure bur and a pear-shaped bur.
    • Answer: A fissure bur has a flat end and is mainly used for cutting flat surfaces and creating sharp angles, while a pear-shaped bur is tapered and used for contouring and smoothing cavity walls.
  1. Question: How does a diamond bur differ from a carbide bur?
    • Answer: Diamond burs have a cutting surface coated with diamond particles, making them suitable for harder materials like enamel and ceramic. Carbide burs, on the other hand, are made of tungsten carbide and are effective for cutting softer materials like dentin.
  1. Question: When would you use a football-shaped bur in dental procedures?
    • Answer: A football-shaped bur is often used for creating concave surfaces, such as in Class II cavity preparations on the proximal surfaces of posterior teeth.
  1. Question: What is the significance of using cross-cut or cross-cutting burs?
    • Answer: Cross-cut burs have multiple small blades arranged in a cross pattern, providing efficient cutting and reduced clogging during procedures, especially in dense materials like dentin.
  1. Question: In which situations would a tapered fissure bur be preferred over a straight fissure bur?
    • Answer: A tapered fissure bur is often preferred for initial penetration and creating initial outlines, while a straight fissure bur is used for more straightforward and deeper preparations.
  1. Question: How do you choose the appropriate grit size for a diamond bur?

These questions cover various aspects of dental burs, including their shapes, materials, and applications in different dental procedures.

Certainly! Here are some viva questions and answers related to the uses of dental burs:

  1. Question: What is the primary purpose of dental burs in dentistry?
    • Answer: Dental burs are cutting instruments used in dentistry for tasks such as cavity preparation, tooth shaping, and removal of dental tissues.
  1. Question: Can you explain the role of a fissure bur in dental procedures?
    • Answer: A fissure bur is commonly used for cutting and shaping the occlusal surfaces of teeth during cavity preparation, especially in the pits and fissures.
  1. Question: How do dental burs aid in crown preparation?
  1. Question: In what situations would you choose a diamond bur over a carbide bur?
    • Answer: Diamond burs are often preferred for tasks involving hard tissues like enamel and ceramic due to their abrasive diamond coating, while carbide burs are suitable for softer tissues like dentin.
  1. Question: Explain the significance of using a tapered bur in dental procedures.
    • Answer: A tapered bur is useful for creating more precise and refined shapes in dental preparations, especially in areas where a rounded or tapered contour is required.
  1. Question: How are finishing burs different from cutting burs in dental applications?
    • Answer: Cutting burs are designed for initial tooth reduction, while finishing burs have fine grits and are used for refining the tooth surfaces and achieving a smooth finish.
  1. Question: What role do diamond-coated burs play in cosmetic dentistry?
  1. Question: When is the use of a surgical bur indicated in dentistry?
    • Answer: Surgical burs are employed in oral surgery for procedures such as bone reduction, removal of impacted teeth, and shaping of bone during implant placement.
  1. Question: How do you select the appropriate bur for a specific dental procedure?
    • Answer: The selection of a dental bur depends on factors such as the type of procedure, tooth location, material being worked on, and the desired outcome. Coarser burs may be used for bulk removal, while finer burs are employed for finishing and polishing.

These questions cover a range of uses of dental burs in various dental procedures and situations.

 

Certainly! Here are some viva questions and answers related to the selection of dental burs:

  1. Question: What factors influence the selection of a dental bur for a specific procedure?
    • Answer: The selection of a dental bur is influenced by factors such as the type of procedure, tooth location, material being worked on, and the desired outcome.
  1. Question: How does the tooth location affect the choice of dental bur?
    • Answer: Different tooth surfaces and locations may require specific bur shapes and sizes. For example, occlusal surfaces may need fissure burs, while interproximal surfaces may require tapered burs.
  1. Question: Explain the importance of bur grit size in dental procedures.
    • Answer: Grit size determines the coarseness or fineness of a bur. Coarser grits are used for bulk removal, while finer grits are suitable for finishing and polishing procedures.
  1. Question: When would you choose a carbide bur over a diamond bur in dental work?
    • Answer: Carbide burs are suitable for cutting softer tissues like dentin, while diamond burs are preferred for tasks involving harder materials such as enamel and ceramic.
  1. Question: Describe the considerations for selecting a bur for crown preparation.
  1. Question: How does the speed of the handpiece influence bur selection?
    • Answer: The speed of the handpiece affects the cutting efficiency and heat generation. Higher speeds are often used for cutting, while lower speeds are suitable for finishing and polishing.
  1. Question: In what situations would you choose a cross-cut bur over a plain-cut bur?
    • Answer: Cross-cut burs, with multiple blades arranged in a cross pattern, are preferred for efficient cutting and reduced clogging, making them suitable for dense materials or when working in areas with debris.
  1. Question: What role does the patient’s comfort play in the selection of dental burs?
    • Answer: Patient comfort is crucial. Choosing burs that minimize vibration, heat generation, and noise can enhance the overall patient experience during dental procedures.
  1. Question: How do you select a bur for cosmetic dentistry procedures?
    • Answer: In cosmetic dentistry, burs with fine grits are often selected for precise shaping and contouring. The choice may also depend on the specific aesthetic goals of the procedure.

These questions cover various aspects of the selection process for dental burs, taking into account the specific needs of different dental procedures and patient considerations. Viva Question and Answers in RCT

 

 

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