Veterinary Dental Radiographic Positioning Techniques
Dental Radiographic Positioning
Stephen Juriga DVM, Dipl. AVDC
www.veterinarydentalcenter.com
***
Training reference: Please print these slides as a handout (3 per page) in
black and white to serve as a printed reference for training or to be used in the
dentistry suite
Common Indications for Dental
Radiographs
(Laminate and post this next to dental x-ray machine)
•
Fractured Teeth
•
Discolored Teeth
•
Missing Teeth
•
Resorptive Lesions (cats)
•
Periodontal Disease
Pockets over 3mm in dogs
Pockets over 2mm in cats
•
Oral Swelling/Masses
•
Draining tracts on the
gums, maxilla, or mandible
•
Enamel hypoplasia or
deformed tooth
•
Gingival recession or
hyperplasia
•
Nasal Discharge
•
Epistaxis
•
Pre- Post Extraction
•
Client education
Non-dental uses:
•
Small patient extremities
•
Birds
•
Exotics/pocket pets
•
Nasal Radiographs
•
Phalanges
Patient positioning-
when learning
•
Sternal recumbency for the all maxillary views
•
Dorsal recumbency for the rostral mandibular views
•
Lateral recumbency for parallel mandibular views
Parallel technique
*
image of the caudal mandibular premolars and molars*
Parallel technique
*Cone head is placed parallel to plate or sensor*
Parallel view of a canine mandible
*Image of mandibular premolars and molars*
The Bisecting Angle (BA) Technique
•
A bisecting angle is the imaginary plane that equally
divides the distance between the planes of the long
axis of the plate/sensor and central axis of the tooth.
Another way to attain proper alignment is to
visualize the plane of the cone and align it parallel to
the bisecting angle.
Plate/sensor
Bisecting angle (BA)
Tooth
Tube head
Center on the desired teeth
*stand behind the cone first then move to the side of
the patient to visualize the BA*
Bisecting angle of maxillary incisors
*Line x-ray tube up parallel to the bisecting angle*
BA
Maxillary incisors
Bisecting angle in the Cat
*Image of the rostral maxillary incisors*
BA
Feline Maxillary Incisors
Oblique maxillary canine
*BA positioning on the incisors first then move the
cone slightly oblique to image the left canine*
Side view of oblique technique for the
right maxillary canine
Right maxillary canine-oblique
Bisecting angle of maxillary premolar
*x-ray tube head is positioned between the first molar and the fourth
premolar*
BA technique of the maxillary
premolars and molars
*Come around and face the patient to adjust the cone to the BA
*
BA
Right Maxillary PM2-4,M1
Tube shift technique to separate
mesial roots of PM4
*BA first then tube shift cranial to caudal*
Tube shift technique to separate
mesial roots of PM4
*BA first then tube shift caudal to cranial*
Right Maxillary PM4 with Root
Separation
Acute Angle technique (feline)
(Slight elongation to avoid superimposition of the zygomatic arch)
Acute Angle=Elongated roots
Bisecting angle of mandibular incisors
and canine teeth
BA
Maxillary Incisors and Canine teeth
Mandible- note sensor
Bisecting angle of first and second
premolars in the mandible
*Use this technique to image PM1,2,3*
BA
Rostral Mandible PM1 & 2
Bisecting angle of mandible- Sensor
10
Learn about common indications for dental radiographs in veterinary practice and proper patient positioning for accurate imaging. Explore techniques such as parallel view and the bisecting angle method for capturing quality dental X-rays. Enhance your skills in dental radiographic positioning for effective diagnosis and treatment planning.
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Dental Radiographic Positioning Stephen Juriga DVM, Dipl. AVDC www.veterinarydentalcenter.com ***Training reference: Please print these slides as a handout (3 per page) in black and white to serve as a printed reference for training or to be used in the dentistry suite
Common Indications for Dental Radiographs (Laminate and post this next to dental x-ray machine) Gingival recession or hyperplasia Nasal Discharge Epistaxis Pre- Post Extraction Client education Fractured Teeth Discolored Teeth Missing Teeth Resorptive Lesions (cats) Periodontal Disease Pockets over 3mm in dogs Pockets over 2mm in cats Oral Swelling/Masses Draining tracts on the gums, maxilla, or mandible Enamel hypoplasia or deformed tooth Non-dental uses: Small patient extremities Birds Exotics/pocket pets Nasal Radiographs Phalanges
Patient positioning- when learning Sternal recumbency for the all maxillary views Dorsal recumbency for the rostral mandibular views Lateral recumbency for parallel mandibular views
Parallel technique *image of the caudal mandibular premolars and molars*
Parallel technique *Cone head is placed parallel to plate or sensor*
Parallel view of a canine mandible *Image of mandibular premolars and molars*
The Bisecting Angle (BA) Technique A bisecting angle is the imaginary plane that equally divides the distance between the planes of the long axis of the plate/sensor and central axis of the tooth. Another way to attain proper alignment is to visualize the plane of the cone and align it parallel to the bisecting angle. Tube head Bisecting angle (BA) Tooth Plate/sensor
Center on the desired teeth *stand behind the cone first then move to the side of the patient to visualize the BA*
Bisecting angle of maxillary incisors *Line x-ray tube up parallel to the bisecting angle* BA
Bisecting angle in the Cat *Image of the rostral maxillary incisors* BA
Oblique maxillary canine *BA positioning on the incisors first then move the cone slightly oblique to image the left canine*
Side view of oblique technique for the right maxillary canine
Bisecting angle of maxillary premolar *x-ray tube head is positioned between the first molar and the fourth premolar*
BA technique of the maxillary premolars and molars *Come around and face the patient to adjust the cone to the BA* BA
Tube shift technique to separate mesial roots of PM4 *BA first then tube shift cranial to caudal*
Tube shift technique to separate mesial roots of PM4 *BA first then tube shift caudal to cranial*
Right Maxillary PM4 with Root Separation
Acute Angle technique (feline) (Slight elongation to avoid superimposition of the zygomatic arch)
Bisecting angle of mandibular incisors and canine teeth BA
Bisecting angle of first and second premolars in the mandible *Use this technique to image PM1,2,3* BA
