![Page 1: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/1.jpg)
EXPOSURE AND TECHNIQUE ERRORS
DA 105
![Page 2: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/2.jpg)
Dental Radiography
Questions What film exposure and technique
errors may be observed on dental radiographs?
What horizontal and vertical angulation errors may be observed on dental radiographs?
What is the proper film placement for bite-wing radiographs?
![Page 3: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/3.jpg)
Dental Radiography
Exposure and Technique Errors Film exposure errors Technique errors (periapical films) Technique errors (bite-wing films) Miscellaneous technique errors
![Page 4: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/4.jpg)
Exposure and Technique Errors
Purpose To describe film exposure problems
and periapical, bite-wing, and miscellaneous technique errors
![Page 5: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/5.jpg)
Film Exposure Errors
Exposure Problems Unexposed film Film exposed to light
Time and Exposure Factor Problems Overexposed film Underexposed film
![Page 6: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/6.jpg)
Unexposed Film Appearance
The film appears clear Cause
Failure to turn on the x-ray machine Electrical failure Malfunction of the x-ray machine
Correction Make certain the x-ray machine is turned on
and listen for the audible exposure signal
![Page 7: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/7.jpg)
An unexposed film appears
clear
![Page 8: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/8.jpg)
Film Exposed to Light Appearance
The film appears black Cause
The film was exposed to white light Correction
Do not unwrap in a room with white light
Check the darkroom for light leaks Turn off all lights in the darkroom
except the safelight
![Page 9: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/9.jpg)
A film exposed to light appears
black
![Page 10: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/10.jpg)
Overexposed Film
Appearance Film appears dark
Cause Excessive exposure time, kilovoltage,
milliamperage Correction
Check settings and reduce as needed before exposing film
![Page 11: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/11.jpg)
An overexposed film appears
dark
![Page 12: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/12.jpg)
Underexposed Film
Appearance The film appears light
Cause The film was underexposed
Correction Check the exposure time, kilovoltage,
and milliamperage settings on the x-ray machine before exposing the film
![Page 13: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/13.jpg)
An underexposed film appears light
![Page 14: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/14.jpg)
Technique Errors (Periapical Films)
Film Placement Problems Correct film placement Incorrect film placement
Absence of apical structures Dropped film corner
Angulation Problems Incorrect horizontal angulation Incorrect vertical angulation
PID Alignment Problems Cone-cut with Film Holder Cone-cut without Film Holder
![Page 15: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/15.jpg)
Correct Film Placement
Each periapical film must be positioned in a certain way to show specific teeth and related anatomic structures The edge of the periapical film must
be placed parallel to the incisal or occlusal surfaces of the teeth and extend 1/8th inch beyond the incisal or occlusal surfaces
![Page 16: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/16.jpg)
Correct periapical film placement demonstrates the entire tooth, including
the apex and surrounding structures
![Page 17: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/17.jpg)
Absence of Apical Structures
Haring (p. 276) (Fig. 20-6) Appearance
No apices appear on the film Cause
The film was not positioned in the patient’s mouth to cover the apical regions of the teeth
Correction Make certain no more than 1/8th inch of the
film edge extends beyond the incisal-occlusal surfaces of the teeth
![Page 18: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/18.jpg)
Improper film placement; no apices appear on this film
![Page 19: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/19.jpg)
Dropped Film Corner Appearance
The occlusal plane appears tipped or tilted Cause
The edge of the film was not placed parallel to the incisal-occlusal surfaces of the teeth
Correction Make certain the edge of the film is placed
parallel to the incisal-occlusal surfaces of the teeth
![Page 20: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/20.jpg)
Improper film placement; a dropped film corner is seen when the edge of the film is not placed parallel to the incisal or occlusal surfaces of the
teeth
![Page 21: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/21.jpg)
Incorrect Horizontal Angulation
Appearance Overlapped contacts
Cause The central ray was not directed
through interproximal spaces Correction
Direct the x-ray beam through interproximal regions
![Page 22: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/22.jpg)
Incorrect horizontal angulation results in overlapped contact
areas
![Page 23: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/23.jpg)
Incorrect Vertical Angulation
Foreshortened images Appearance
Short teeth with blunted roots Cause
Excessive vertical angulation Correction
Do not use excessive vertical angulation with the bisecting technique
![Page 24: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/24.jpg)
If the vertical angulation is too steep, the image of the tooth on the film is shorter
than the actual tooth; the images are
foreshortened
![Page 25: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/25.jpg)
Incorrect Vertical Angulation
Elongated images Appearance
Long, distorted teeth Cause
The vertical angulation was insufficient Correction
Use adequate vertical angulation with the bisecting technique
![Page 26: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/26.jpg)
If the vertical angulation is too flat, the image of the tooth on the film is longer than the actual
tooth; the images are elongated
![Page 27: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/27.jpg)
PID Alignment Problems
Cone-cut with film holder Appearance
A clear area appears on the film Cause
The PID was not properly aligned with the periapical film holder
Correction Make certain the x-ray beam is centered
over the film
![Page 28: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/28.jpg)
A cone-cut is seen when the PID is not properly aligned with the periapical film-holding device
![Page 29: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/29.jpg)
PID Alignment Problems
Cone-cut without film holder Appearance
A clear area appears on the film Cause
The PID was not directed at the center of the film
Correction Make certain the x-ray beam is centered
over the film
![Page 30: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/30.jpg)
A cone-cut appears as a curved unexposed (clear) area on a
radiograph
![Page 31: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/31.jpg)
Technique Errors (Bite-Wing Films) Film Placement Problems
Correct film placement Incorrect film placement
Angulation Problems Incorrect horizontal angulation Incorrect vertical angulation
PID Alignment Problems Cone-cut with film holder Cone-cut without film holder
![Page 32: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/32.jpg)
Correct Film Placement
Premolar bite-wing The resulting film shows both the
maxillary and mandibular premolars and distal contact areas of both canines
Molar bite-wing The resulting film shows both the
maxillary and mandibular molars
![Page 33: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/33.jpg)
Correct film placement for the
premolar bite-wing
![Page 34: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/34.jpg)
Correct film placement for the molar bite-wing
![Page 35: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/35.jpg)
Incorrect Film Placement Premolar bite-wing
Appearance Distal surfaces of the canines are not visible on
the film Cause
The bite-wing film was positioned too far posteriorly in the mouth
Correction Make certain the anterior edge of the bite-wing
film is positioned at the midline of the mandibular canine
![Page 36: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/36.jpg)
Incorrect film placement for
the premolar bite-wing
![Page 37: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/37.jpg)
Incorrect Film Placement Molar bite-wing
Appearance Third molar regions are not visible on film
Cause The bite-wing film was positioned too far
anteriorly in the mouth Correction
Make certain the anterior edge of the bite-wing film is positioned at the midline of the mandibular second premolar
![Page 38: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/38.jpg)
Incorrect film placement for the
molar bite-wing
![Page 39: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/39.jpg)
Incorrect Horizontal Angulation
Appearance Overlapped contacts on the film
Cause The central ray was not directed
through the interproximal spaces Correction
Direct the x-ray beam through the interproximal spaces
![Page 40: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/40.jpg)
Overlapped interproximal contacts result from incorrect horizontal
angulation
![Page 41: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/41.jpg)
Incorrect Vertical Angulation
Appearance Images appear distorted on the film
Cause The vertical angulation was incorrect
Correction Always use a +10-degree vertical
angulation with the bite-wing technique
![Page 42: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/42.jpg)
Incorrect vertical angulation causes the images to appear
distorted
![Page 43: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/43.jpg)
Cone-Cut With Film Holder
Appearance A clear area appears on the film
Cause The PID was not properly aligned with
the film holder Correction
Make certain the PID and the aiming ring are aligned
![Page 44: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/44.jpg)
A, A cone-cut is seen when the PID is not properly aligned with the bite-wing film-holding device. B, A cone-cut can also be produced with rectangular collimation; the PID is
not properly aligned with the bite-wing film-holding device
![Page 45: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/45.jpg)
Cone-Cut Without Film Holder
Appearance A clear area appears on the film
Cause The PID was not directed at the
center of the film Correction
Make certain the x-ray beam is centered over the film
![Page 46: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/46.jpg)
A cone-cut appears as a curved unexposed (clear)
area on a radiograph
![Page 47: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/47.jpg)
Miscellaneous Technique Errors
Film Bending Film Creasing Phalangioma Double Exposure Movement Reversed Film
![Page 48: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/48.jpg)
Film Bending
Appearance Images appear stretched and distorted
Cause The film was bent excessively
Correction Check film placement before exposure
![Page 49: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/49.jpg)
A bent film appears distorted
![Page 50: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/50.jpg)
Film Creasing
Appearance A thin radiolucent line appears on the film
Cause The film was creased
Correction Do not bend or crease the film
excessively
![Page 51: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/51.jpg)
A film crease appears as a thin radiolucent line
![Page 52: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/52.jpg)
Phalangioma Haring (p. 282) (Fig. 20-23)
Appearance The patient’s finger appears on the film
Cause The patient’s finger was positioned in front
of the film Correction
Make certain the patient’s finger is placed behind the film
![Page 53: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/53.jpg)
This film demonstrates a phalangioma; the bones of a
patients finger appear on the film
![Page 54: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/54.jpg)
Double Exposure
Appearance A double image appears on the film
Cause The film was exposed twice in the
patient’s mouth Correction
Always separate exposed and unexposed films
![Page 55: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/55.jpg)
This film demonstrates a double exposure
![Page 56: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/56.jpg)
Movement Appearance Blurred images appear on the film
Cause The patient moved during exposure of
the film Correction
Instruct the patient to remain still while the film is being exposed
![Page 57: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/57.jpg)
Movement results in a blurred image
![Page 58: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/58.jpg)
Reversed Film Appearance
Light images with a herringbone pattern appear on the film
Cause The film was placed backward in the mouth
and then exposed Correction
Always place the white side of the film adjacent to the teeth
![Page 59: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/59.jpg)
A reversed film appears light with a herringbone (or tire-track) pattern. The tire-track pattern is seen on the lead-foil
backing within the film packet
![Page 60: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/60.jpg)
EXPOSURE AND TECHNIQUE ERRORSDIAGNOSTIC DENTAL RADIOGRAPH:
1.FILM EXPOSURE ERRORS:
EXPOSURE PROBLEMS
a) Unexposed film
APPEARANCE CAUSE CORRECTION
b) Film exposed to light
TIME AND EXPOSURE
FACTOR PROBLEMS
a) Overexposed
film
b) Underexposed film
![Page 61: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/61.jpg)
TECHNIQUE ERRORS(PERIAPICAL FILMS)
1. FILM PLACEMENT PROBLEMS2. ANGULATION PROBLEMS3. PID ALIGNMENT PROBLEMS
![Page 62: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/62.jpg)
FILM PLACEMENT PROBLEMS
ERROR APPEARANCE CAUSE CORRECTION
CORRECT FILM
PLACEMENTINCORRECT FILM
PLACEMENTa) ABSENCE OF
APICAL STRUCTURES
b) DROPPED FILM CORNER
![Page 63: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/63.jpg)
ANGULATION PROBLEMS
ERROR APPEARANCE CAUSE CORRECTION
INCORRECT HORIZONTAL ANGULATION
INCORRECT VERTICAL
ANGULATIONa)
FORESHORTENED IMAGE
b) ELONGATED IMAGE
![Page 64: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/64.jpg)
PID ALIGNMENT PROBLEMS
ERROR APPEARANCE CAUSE CORRECTION
CONE-CUT WITH FILM
HOLDER
CONE-CUT WITHOUT
FILM HOLDER
![Page 65: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/65.jpg)
TECHNIQUE ERRORS(BITE-WING FILMS)
1. FILM PLACEMENT PROBLEMS2. ANGULATION PROBLEMS3. PID ALIGNMENT PROBLEMS
![Page 66: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/66.jpg)
FILM PLACEMENT PROBLEMS
ERROR
CORRECT FILM PLACEMENT1)PREMOLAR BITE-WING
2)MOLAR BITE-WING
INCORRECT FILM PLACEMENT1)PREMOLAR BITE-WING
2)MOLAR BITE-WING
![Page 67: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/67.jpg)
ANGULATION PROBLEMS
ERROR APPEARANCE CAUSE CORRECTION
INCORRECT HORIZONTAL ANGULATION
INCORRECT VERTICAL
ANGULATION
![Page 68: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/68.jpg)
PID ALIGNMENT PROBLEMS
ERROR APPEARANCE CAUSE CORRECTION
CONE-CUT WITH FILM
HOLDER
CONE-CUT WITHOUT
FILM HOLDER
![Page 69: EXPOSURE AND TECHNIQUE ERRORS DA 105. Dental Radiography Questions What film exposure and technique errors may be observed on dental radiographs? What](https://reader036.vdocuments.net/reader036/viewer/2022062309/56649ce45503460f949b0bd5/html5/thumbnails/69.jpg)
MISCELLANEOUS TECHNIQUE ERRORS
ERROR APPEARANCE CAUSE CORRECTION
1.FILM BENDING
2.FILM CREASING
3.PHALANGIOMA
4.DOUBLE EXPOSURE
5.MOVEMENT
6.REVERSED FILM