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ch. 13 wilkins

3 Types of mirror surfaces -plane - concave - front surface
Flat mirror, may produce double image plane
Magnifying mirror concave
Mirror with reflecting surface is on front surface of lens * front surface eliminates "ghost" images front surface
Three parts of a mouth mirror handle, shank, and working end
Mirror diameters vary, what are the different diameters -5/8 inches -1 1/4 inches -1 1/2 inch -2 inch
Mirrors are threaded 2 different ways -plain stem -cone socket
Handles that are better for hygienist -thicker handles -light weight handles
Mouth mirror is used for -indirect vision -indirect illumination transillumination retraction
Examples of indirect vision -distal surface of posterior teeth -lingual surface of anterior teeth
Reflection of light from dental overhead light indirect illumination
Reflection of light through the teeth Mirror held to reflect light from lingual aspect while facial teeth are examined Transillumination
Name of grasp when holding an instrument modifies pen grasp
Air compressor with tubing attachment to syringe air source
Has angled working end, can be turned for maxillary or mandibular application air tip
Avoid applying air directly into pocket * subgingival biofilm may be forced into tissues
Determination of accuracy of instrument by measurement of its variation from a standard calibration
Probing depth as measured from the cementoenamel junction, to location of probe tip at coronal level of attached periodontal tissues clinical attachment level
Slender stainless steel instrument with fine flexible, sharp point used for examination of surfaces of teeth to detect irregularities explorer
A vibration perceptible by palpation fremitus * determination only on maxillary teeth
Instrument used to measure mobility periodontometer
Smooth, slender instrument usually round in diameter with rounded tip designed for examination of teeth and soft tissues probe
Calibrated in millimeter increments to facilitate recordings for comparison with periodic assessments probe
Distance from gingival margin to location of periodontal probe tip at coronal border of attached periodontal tissues probing depth
Pertaining to the touch tactile
Ability to distinguish relative degrees of roughness and smoothness -tactile discrimination -a.k.a. tactile sensitivity
Two types of probes are - traditional or standard manual - automated probes
Developed and researched in attempt to overcome problems in obtaining consistent readings with traditional probes automated probes
Probe is used for -assess periodontal status -sulcus & pocket survey - determine clinical attachment level - mucogingival exam 5) other gingival determinations 6) guide treatment 7) evaluate success & completeness of treatment 8) evaluation @ maintenance appointm
A probe has 3 parts -handle -angles shank working end
What exam is used for recording perio probe depths CPE -comprehensive periodontal exam
Most common probe used is hu-friedy
When probe is at base of sulcus or crevice, at coronal end of junctional epithelium normal health tissue
When probe tip is within the junctional epithelium gingivitis and early periodontitis
When probe tip passes through the junctional epithelium to reach attached connective tissue fibers advanced periodontitis
Depth of probing varies around a tooth true
Gingival margin varies in its position on the tooth true
Proximal surfaces are approached by entering from both facial and lingual aspects of tooth
Gingival and periodontal infections begin in the _______ area more frequently than others col
Probing depth may be deepest directly under contact area because of crater formation in alveolar bone
Anatomic features of tooth surface wall of pocket influence the direction of probing true
During movement of the probe ___________ can be felt & evaluated calculus and tooth surface irregularities
General factors of probing are accuracy & consistency so readings are dependable for comparison
Factors that affect probe determinations are -severity & extent of perio disease - probe - technique applied - placement problems
Anatomic variations would be -tooth contours -furcations -contact areas -anomalies
Interferences would be -calculus -irregular margins of restorations fixed dental protheses
Accessibility/Visibility would be -obstructed by tissue bleeding -limited opening by patient macroglossia
Probe insertion with healthy or firm fibrotic tissue insertion is more difficult because of close adaptation of tissue to tooth surface
Probe insertion with spongy, soft tissue gingival margin is loose & flabby because of destruction of underlying gingival fibers. probe inserts readily, bleeding can be expected on gentle probing
Hold probe tip flat against -tooth surface -probe is parallel with long axis of tooth for vertical insertion
Slide probe along tooth surface __________ down to base of sulcus or pocket vertically
Maintain probe in sulcus or pocket of each tooth as probe is moved ___________ in a walking stroke
Measuring is presence of visible recession measure from cementoenamal junction to attachment
Teeth with two roots bifurcation
Exam used to detect adequacy of width of attached gingiva, locate frenal attachments & their proximity to free gingiva, identify promptly the mucogingival junction mucogingival examination
Area where tension pulls free gingiva away from tooth indicates no attached gingiva
General purposes and uses of explorers -detect texture and character of tooth surfaces -examine supragingival tooth surfaces -examine subgingival tooth surfaces -define extent of instrumentation needed -evaluate completeness of treatment
Working end of explorer is slender, wirelike, metal tip that is circular in cross section and tapers to fine sharp point
Each tooth has ____ readings (areas to be measured) -6 -3 facial -3 lingual
Created by: welchang
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