Improper horizontal angulation results RADIOGRAPHY in C. ALIGNMENT OF BEAM AND RECEPTOR J.

Instructions: Please match the term/question with the correct definition. Place the letter on the line before the description. A. PARALLELING TECHNIQUE H. Distortion results from B. PROJECTION ERRORS IN PERIAPICAL 1. Improper horizontal angulation results RADIOGRAPHY in C. ALIGNMENT OF BEAM AND RECEPTOR J. BISECTING ANGLE TECHNIQUE D. BITEWING TECHNIQUE K. What cone do we use for paralleling E. Which method is the preferred method technique? for PA radiographs? L. GEOMETRIC CHARACTERISTICS F . 5 PRINCIPLES FOR ACCURATE IMAGE M. BITEWING TECHNIQUE, used for: FORMATION N. MAGNIFICATION, also known as: G. PROJECTION TECHNIQUES FOR O. Incorrect horizontal angulation: PERIAPICAL RADIOGRAPHY 1. improper alignment of receptor, object, 5 . overlapped contacts beam. 2. long cone 3. Vertical Angulation Horizontal Angulation Alignment of Beam and Receptor 6. Crowns, interproximal areas, and alveolar bone support 4. 1. The focal spot is as small as possible. 2. Source-object distance as long as Caries, periodontal condition, calculus, possible. crown margins 3. Object-receptor distance as short as possible. Premolar and molar bitewing 4. Object parallel to the receptor. 5. Beam perpendicular to object and receptor.

7. -looks like it should be about parallel to 11. equal enlargement the line of teeth. 10 degrees plus angle 12. between tooth surface and receptor?? BITEWING TECHNIQUE VS 13. _ 1. Paralleling Technique 2. Bisecting Angle Technique 14. _ overlapping of contacts. Improper horizontal angulation results in overlapping of contacts, 8. 1. Image sharpness 2. Image magnification 3. Image shape distortion ._ 1. Receptor parallel to the tooth -increased object-receptor distance increased source-receptor distance 2. Beam perpendicular to Paralleling technique is the preferred tooth/receptor. 9 . _ method. 10. The angle formed by the plane of tooth and plane of the receptor is bisected, and the beam is directed perpendicular to the bisecting line.