PMPR 1

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Questions and Answers

What is the purpose of starting the adaptation position with the lower terminal shank parallel to the midline plane?

  • To simplify the handling of the instrument
  • To increase the pressure on the instrument
  • To ensure coverage of the whole tooth surface (correct)
  • To restrict movement during the procedure

Which motion component involves the activation of the wrist?

  • Handle roll
  • Wrist motion activation (correct)
  • Digital motion activation
  • Pivot

What does correct aspect usage of an instrument refer to?

  • Choosing the appropriate area of the instrument for the task (correct)
  • Using the blunt edge to avoid trauma
  • Using the sharp edge for detailed work
  • Switching tools based on convenience

Why is handle roll an important motion in instrument handling?

<p>It helps to rotate the instrument for better access (B)</p> Signup and view all the answers

Which of the following statements about digital motion activation is true?

<p>It is used for precise and controlled movements (D)</p> Signup and view all the answers

What is the primary focus of ergonomics in instrument use?

<p>Ensuring comfort and reducing strain on the user (C)</p> Signup and view all the answers

When is it most appropriate to use wrist motion activation?

<p>During slow, thorough movements (B)</p> Signup and view all the answers

What is the role of pivot in motion components?

<p>Enabling rotational movement while working (B)</p> Signup and view all the answers

Which movement is least likely to be involved in instrument adaptation?

<p>Foot motion activation (A)</p> Signup and view all the answers

What is the main reason for ensuring an atraumatic approach in instrumentation?

<p>To improve patient comfort and safety (A)</p> Signup and view all the answers

What is the primary purpose of using an intra-oral fulcrum in clinical practice?

<p>To stabilize the clinician's dominant hand inside the mouth (A)</p> Signup and view all the answers

Where is the pad of the ring finger positioned when utilizing an intra-oral fulcrum?

<p>Near the tooth being instrumented (D)</p> Signup and view all the answers

What angle considerations are mentioned for using an intra-oral fulcrum?

<p>Incisal edge or occlusal surface angle of a stable tooth (C)</p> Signup and view all the answers

What is one potential risk associated with the use of an extra-oral fulcrum?

<p>Increased chance of patient discomfort (D)</p> Signup and view all the answers

In which location is an extra-oral fulcrum typically stabilized?

<p>On the patient's cheek or chin (A)</p> Signup and view all the answers

Which of the following statements is true about an intra-oral fulcrum?

<p>It helps decrease the likelihood of injury for both the patient and clinician. (C)</p> Signup and view all the answers

What is a common feature of both intra-oral and extra-oral fulcrums?

<p>They both stabilize the clinician's hands (D)</p> Signup and view all the answers

What should be considered for hand positioning when using an intra-oral fulcrum?

<p>The occlusobuccal or occlusolingual angle of a stable tooth (A)</p> Signup and view all the answers

Which of the following is NOT a reason to use an intra-oral fulcrum?

<p>To create a barrier from patient saliva (D)</p> Signup and view all the answers

What is the primary purpose of having a fulcrum during periodontal therapy?

<p>To provide a stable support for hand movement (B)</p> Signup and view all the answers

Which of the following best describes an intra-oral fulcrum?

<p>A support point on a tooth surface (B)</p> Signup and view all the answers

Which statement correctly explains the role of finger rests in periodontal procedures?

<p>They help ensure stability and safety for the clinician (B)</p> Signup and view all the answers

What is the significance of the lower terminal shank when identifying the appropriate working end of an instrument?

<p>It identifies the orientation of the blade (C)</p> Signup and view all the answers

In what scenario would you use different types of instrumentation motion during therapy?

<p>To adapt to various areas of the mouth and tooth structures (B)</p> Signup and view all the answers

What is a key benefit of properly utilizing a fulcrum during treatment?

<p>It facilitates precise movement and enhances safety (D)</p> Signup and view all the answers

Which characteristic is ideal for a finger rest?

<p>It should be stable and securely positioned (C)</p> Signup and view all the answers

Which of the following is NOT a reason for using a fulcrum?

<p>To limit hand movement (C)</p> Signup and view all the answers

How does a finger rest contribute to patient safety during periodontal therapy?

<p>By minimizing the risk of slipping instruments (D)</p> Signup and view all the answers

What is a crucial aspect to consider when conducting a clinical periodontal session?

<p>The structure and function of instrumentation motions (B)</p> Signup and view all the answers

Flashcards

Periodontal Session Steps

The procedures needed to start a good periodontal clinical session.

Fulcrum's Rationale

The reason for using a fulcrum in periodontal procedures. It provides stability and safety for both patient and dentist.

Intra-oral Fulcrum

A support point within the patient's mouth.

Extra-oral Fulcrum

A support point outside the patient's mouth.

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Lower Terminal Shank Use

The way the lower terminal shank of an instrument is used in periodontal procedures.

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Instrumentation Motions

Different ways to use instruments based on the situation, in periodontal procedures.

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Fulcrum Support

The stability and safety given by the fulcrum due to its support, for both patient and dentist.

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Finger Rest Ideal Features

The characteristics that make a good finger rest for periodontal procedures.

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Finger Rest Structure

Optimal shape or designs for a finger rest in periodontal procedures.

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Instrumentation Motion Usage

Different instruments used in periodontal procedures and situations where each is used appropriately.

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Intra-oral Fulcrum use

Placement near the tooth's incisal edge or occlusal surface, or occlusobuccal/occlusolingual angle of a stable tooth.

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Intra-oral Fulcrum benefits

Reduces risk of patient and clinician injury.

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Extra-oral Fulcrum consideration

Evaluate potential risks associated with extra-oral stabilization.

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Fulcrum Selection

Choosing between intra-oral or extra-oral fulcrum.

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Lower Terminal Shank

The part of a dental instrument closest to the working end, which interacts with the tooth surface.

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Adaptation

The process of positioning the instrument's lower terminal shank parallel to the tooth surface, ensuring complete coverage and atraumatic contact.

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Midpoint Start

Initiating an instrument stroke from the middle of the tooth's surface, allowing for better control and visibility throughout the movement.

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Which End is Used?

Determining the appropriate working end of the instrument based on the specific tooth surface and procedure.

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Instrument Motion

The coordinated movements of the wrist, fingers, and instrument handle used in periodontal procedures.

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Pivot Motion

The movement of the instrument around a fixed fulcrum point, usually involving the wrist.

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Digital Motion

Finger movements on the instrument handle, primarily used for fine adjustments and precise scaling.

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Handle Roll

Rotating the instrument handle to change the working end's angle, used to adapt to different tooth surfaces or angles.

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When to Activate Wrist Motion?

When working on larger areas, providing greater force and sweeping actions.

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When to Activate Digital Motion?

When fine control and accuracy are required, such as scaling individual tooth surfaces.

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Study Notes

Intended Learning Outcomes

  • Students should be able to revise steps for a good clinical periodontal session
  • Explain the rationale for a fulcrum
  • Recognize and demonstrate intra-oral and extra-oral fulcrums
  • Identify and demonstrate appropriate working ends using the lower terminal shank
  • Explain the appropriate usage and situation for different instrumentation motions
  • Demonstrate usage of instrumentation motions

Recap

  • Diagrams show healthy teeth with intact enamel and supragingival, subgingival biofilms and homeostatic inflammation.
  • Diagrams display various angles and application points, including elbow, knee, head of fibula to floor.

Instruments

  • Images of various dental instruments are presented.

Stability & Safety

  • Key elements for stability & safety include a fulcrum and finger rests
  • Intra-oral and extra-oral fulcrums are described

Fulcrum

  • A fulcrum supports your hand and provides safety for both you and the patient
  • It allows hand movement and precise movements.

Finger Rests

  • The document questions what features are ideal for a finger rest, and also what is the ideal structure for a finger rest.

Intra-oral Fulcrum

  • Used to stabilize the clinician's dominant hand inside the mouth
  • Use a pad of the ring finger near the tooth being instrumented.
  • This decreases likelihood of injury for both patient and clinician.
  • Focus on the incisal edge or occlusal surface, and occlusobuccal or occluso-lingual angles of a stable tooth.

Extra-oral Fulcrum

  • Stabilizes the clinician's dominant and non-dominant hands outside the mouth.
  • Commonly used on the cheek or chin.
  • Students should consider potential risks.

Which End Do I Use?

  • This section discusses the use of instruments.
  • The cyclic process between Instrument action, Ergonomics, Detection and Grip is visible in a circular diagram.

Lower Terminal Shank

  • The bent section of the shank closest to the working end is described
  • Placement of the lower terminal shank is parallel with the midline plane
  • Covering the whole tooth surface, atraumatic, and use of the correct aspect of the instrument are stressed.

Starting Position

  • Use the lower terminal shank parallel with midline plane.
  • Ensure to cover the whole tooth surface, avoiding trauma.
  • Correct instrument aspect should be used.

Start Midpoint—The Move But Look Closer

  • Visual aids illustrating the midpoint of movement are provided.

Which End Do I Use?

  • The document displays visual examples, illustrating the correct end for the instrument's use for treatment.

Motion

  • Four components (pivot) of the motion are diagrammed.
  • Wrist motion activation, digital motion activation, and handle roll are included in the illustration.

Digital Motion Activation

  • Explains when and why digital motion activation is used.
  • Visual aids depict the procedure.

Wrist Motion Activation

  • Discusses when and why wrist motion activation should be used.
  • Visual aids are presented to illustrate the procedure.

Handle Roll

  • When and why handle roll motion activation is conducted is discussed
  • Depicted visually, the procedure is illustrated.

Look Closely and Piece It Together

  • This section illustrates how to visualize and conceptualize the process more completely.
  • It shows how parts relate to the whole.

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