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DRT: 8 – Questions & Accurate Solutions (100%)
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DRT: 8 – Questions & Accurate Solutions (100%)
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DRT: 8 – Questions & Accurate Solutions (100%)Define bisect Right Ans - to divide into two equal parts
Define:
- triangle equilateral
- triangle right
- triangle congruent Right Ans - - 3 equal sides
- one 90 degree angle
- identical and correspond exactly when superimposed
What is the bisecting technique principle based on?
- how is it applied? Right Ans - - Rule of Isometry - Forms 2 imaginary equal triangles
Rule of Isometry Right Ans - two triangles are equal if they have two equal angles and share a common side
Bisecting technique steps:
- where should the receptor be placed? Right Ans - - lingual surface of the tooth (as close as possible)
What is the angle formed by the receptor and the long axis of the tooth called?
- what is formed? Right Ans - imaginary bisector
- two imaginary equal triangles
Bisecting technique steps:
- where should the central ray of the x-ray beam be directed?
- what angle should the central ray be directed?
- what are the two imaginary triangles that result? Right Ans - - perpendicular to the imaginary bisector
- 90°
- right triangles and are congruent
What is the hypotenuse of one imaginary triangle represented by? - what is the other hypotenuse represented by? Right Ans - - long axis of the tooth
- plane of the receptor When the bisecting technique is done correctly and vertical angulation is correct, how does the image of the tooth and actual tooth look? Right Ans - The same length
2 receptor stabilizers used in the bisecting technique
- which is recommended? Right Ans - - Beam alignment device (Recommended) - Client's fingers (Not recommended, last resort)
What is RINN BAI bite-blocks?
- what technique is it used with? Right Ans - alignment device
- bisecting holder
in the RINN BAI System, why do we use these:
- snap-on ring collimators can be added to the plastic rings
- 8 inch PID Right Ans - reduces radiation
What is the stabe bite block?
- what technique is it used with?
- structure? Right Ans - stable disposable receptor holder
- both paralleling and bisecting
- styrofoam
Rinn Snap-A-Ray Holder:
- function
- what technique is it used with? Right Ans - - used to stabilize the receptor
- both paralleling or bisecting technique
What alignment method can be used if the patient is edentulous, torus, shallow palate and sensitive? Right Ans - finger holding method
Finger holding method
- what does it do?
- where should the fingers be placed? Right Ans - - clients finger/thumb stabilizes PA receptor - behind receptor and teeth
Finger holding method:
- thumb position
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