DentRad2: Bisecting-the-Angle, BW Techniques
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| The bisecting technique aka | show 🗑
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| Definition of Bisecting-the-angle technique | show 🗑
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| Advantages of Bisecting-the-Angle Technique | show 🗑
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| Disadvantages of Bisecting-the-Angle Technique | show 🗑
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| Dimensional Distortion with the Bisecting-the-Angle Technique | show 🗑
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| show | Figure that is formed by two lines diverging or separating from a common point;
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| Bisect, Definition | show 🗑
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| show | Imaginary Line that divides the tooth vertically into two equal parts;
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| show | Central portion of the primary beam from the x-ray tubehead
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| show | rule of isometry (two triangles are equal if they have two equal angles and share a common side)
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| show | Theintraoral rcptr is placd alongthe lingl srfce oftooth (edge ofthrcptr touches theincsl/occl portion ofthetooth) *the radigrphr must vislze a line that divds/bisects theangle formed bythe image receptr & thelong axis ofthetooth(line is imagnry bisector)
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| The central ray in bisecting-the-angle technique is directed... | show 🗑
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| show | Snap-A-Ray can be used for bisecting, or paralleling in the mandibular premolar area
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| Correct Horizontal Angulation | show 🗑
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| show | Overlapped contact areas
Superimposition of tooth surfaces
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| Bisecting Technique. Vertical Angulation | show 🗑
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| Foreshortening in Bisecting-the-Angle technique is caused by | show 🗑
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| show | insufficient vertical angulation;
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| Bisecting-the-Angle Technique. Errors associated with receptor positioning | show 🗑
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| Bisecting-the-Angle Technique: Errors associated with cone (PID) positioning | show 🗑
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| Bisecting-the-Angle Technique: Patient Positioning | show 🗑
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| Receptor Positioning | show 🗑
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| show | Intraoral radiographic technique that produces an image of the maxillary and mandibular teeth in occlusion, and the crestal alveolar bone
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| show | To detect interproximal caries and examine the interproximal crestal bone levels
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| Interproximal, define | show 🗑
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| Bitewing image, define | show 🗑
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| Crestal Bone (alveolar crest) | show 🗑
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| show | Crestal bone (alveolar crest)
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| show | Area of the tooth that touches an adjacent tooth
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| show | *Receptor is placed parallel to the crowns of the max & mand teeth; *Receptor is stabilized when the pt bites down on the tab: *Central Ray of the X-Ray beam is directed to open the contact areas between the teeth, using a +8 degree vertical angulation
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| Patient Positioning for Posterior Bitewing Technique | show 🗑
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| show | Include at least the distal surfaces of the cuspid (entire mandibular cuspid if possible)
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| show | One tooth's width past the most posterior molar;
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| show | Vertical Angulation, cone points slightly downward;
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| show | open the contact areas between the teeth; determined by using the q-tip positioned between the guide teeth;
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| How is horizontal angulation determined for premolar bitewing | show 🗑
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| How is horizontal angulation determined for molar bitewing? | show 🗑
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| Cone (PID) Positioning, Premolar BW; Covering the Entire Receptor | show 🗑
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| show | Molar BW: Position the PID anteriorly enough to capture the maxillary and mandibular second premolars; *Anterior portion of the cone is at the commisure; *Middle of the cone directed at the level of the occlusal plane
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| show | *Incorrect Receptor Placement; *Cone positioning errors (Overlapping, Negative vertical angulation); *Overexposed receptor; *Underexposed receptor
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| show | *Mesial surfaces of 1st premolars are missed; *Distal surfaces of most posterior molars are missed; *"uphill/downhill" caused by receptor rotation;
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| Error characterized as such is caused by: *Mesial surfaces of 1st premolars are missed; *Distal surfaces of most posterior molars are missed; *"uphill/downhill" caused by receptor rotation; | show 🗑
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| Common Errors associated w/the BW technique. CONE POSITIONING ERRORS | show 🗑
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| show | Cone positioning errors
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| BW Technique. Overlapping is caused by... | show 🗑
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| show | dropped receptor corner
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| show | *Cone (PID) was pointed upward; *Occlusal surfaces of maxillary teeth can be viewed; *Apical areas of mandibular teeth may be seen
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| show | Overexposed receptor appears dark. Causes: *Exposure time too long; *kVp setting too high; *mA setting too high
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| Underexposed receptor appears... Causes: | show 🗑
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| A conventional film exposed to light appears black after processing is... (what type of error? cause) | show 🗑
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| An unexposed film/receptor appears clear after processing/scanning (what type of error? cause) | show 🗑
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| Cone Cutting, describe | show 🗑
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| show | Cone Cutting, it is a Technique Error
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| Bent receptor causes distortion of images on the receptor. Cause: | show 🗑
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| Excessive bending of receptor due to curvature of hard palate may cause: | show 🗑
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| Film creasing (crease - складка, загиб,) caused by | show 🗑
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| show | The same receptor was exposed twice in more than one area; Technique error
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| show | Double Exposure, Technique error;
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| show | Reversed Conventional Film, Technique Error
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| Reversed Conventional Film, describe, what type of error | show 🗑
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Created by:
EdmondDantes