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Veterinary Dentistry Q&A 01 (view source)
Revision as of 10:17, 19 August 2011
, 10:17, 19 August 2011Created page with "[[|centre|500px]] <br /> '''This dog was presented with an acute inability to close the mouth but no lateral deviation of the mandible.''' <br /> <FlashCard questions="3"> |q..."
[[|centre|500px]]
<br />
'''This dog was presented with an acute inability to close the mouth but no lateral deviation of the mandible.'''
<br />
<FlashCard questions="3">
|q1=What is your tentative clinical diagnosis?
|a1=
Bilateral traumatic luxation of the temporomandibular joint.
|l1=
|q2=How can this diagnosis be confirmed?
|a2=
The diagnosis is confirmed by radiography. Two views are currently in use: the dorsoventral closed-mouth skull radiograph and the closed-mouth lateral oblique view (15–20°, nose tilted up).
Unilateral or bilateral luxation is radiologically evidenced by the fact that the condyloid process is not located within the mandibular fossa.
Capsular osteophyte formation is evidence of a long-standing or recurrent luxation. Usually, the condyloid process displaces rostrodorsally.
If unilateral, the animal is presented with a typical lateral deviation to the side opposite the luxated joint.
|l2=
|q3=Presuming that the tentative diagnosis is confirmed, what is the treatment?
|a3=
Reduction is accomplished under general anesthesia by forcing the condyle ventrally. This can be done by inserting a fulcrum (e.g. pencil, syringe, dowel – depending on patient size) in between the molar teeth and gently forcing the mouth closed; this in turn
levers the condyloid process in a ventrocaudal direction back into the condyloid fossa.
Aftercare may include the use of a tape muzzle.
Recurrent and chronic luxations can be treated by condylectomy.
|l3=
</FlashCard>
{{#tag:imagemap|Image:Next Question.png{{!}}center{{!}}200px
rect 0 0 860 850 [[Veterinary Dentistry Q&A 02|Veterinary Dentistry Q&A 02]]
desc none}}
[[Category:Veterinary Dentistry Q&A]]
<br />
'''This dog was presented with an acute inability to close the mouth but no lateral deviation of the mandible.'''
<br />
<FlashCard questions="3">
|q1=What is your tentative clinical diagnosis?
|a1=
Bilateral traumatic luxation of the temporomandibular joint.
|l1=
|q2=How can this diagnosis be confirmed?
|a2=
The diagnosis is confirmed by radiography. Two views are currently in use: the dorsoventral closed-mouth skull radiograph and the closed-mouth lateral oblique view (15–20°, nose tilted up).
Unilateral or bilateral luxation is radiologically evidenced by the fact that the condyloid process is not located within the mandibular fossa.
Capsular osteophyte formation is evidence of a long-standing or recurrent luxation. Usually, the condyloid process displaces rostrodorsally.
If unilateral, the animal is presented with a typical lateral deviation to the side opposite the luxated joint.
|l2=
|q3=Presuming that the tentative diagnosis is confirmed, what is the treatment?
|a3=
Reduction is accomplished under general anesthesia by forcing the condyle ventrally. This can be done by inserting a fulcrum (e.g. pencil, syringe, dowel – depending on patient size) in between the molar teeth and gently forcing the mouth closed; this in turn
levers the condyloid process in a ventrocaudal direction back into the condyloid fossa.
Aftercare may include the use of a tape muzzle.
Recurrent and chronic luxations can be treated by condylectomy.
|l3=
</FlashCard>
{{#tag:imagemap|Image:Next Question.png{{!}}center{{!}}200px
rect 0 0 860 850 [[Veterinary Dentistry Q&A 02|Veterinary Dentistry Q&A 02]]
desc none}}
[[Category:Veterinary Dentistry Q&A]]