Malocclusions, Dental

Malocclusions, Dental



Basic Information image



Definition


Abnormal occlusal wear patterns involving the premolar and molar arcades



Synonym(s)


Hooks, ramps, waves, steps



Epidemiology



Risk Factors


Age, dental trauma, orthodontic abnormalities, dental dysplasia



Associated Conditions and Disorders


Periodontal disease, endodontic disease, premature expiration and exfoliation



Clinical Presentation



History, Chief Complaint




• Most often, no complaint


• Occasionally, poor performance, weight loss, dysphagia, quidding, poor appetite



Physical Exam Findings




• Abnormal occlusal wear


• Occasionally, poor occlusal contact


• Occasionally, restricted lateral or rostrocaudal mandibular range of motion (ROM)



Etiology and Pathophysiology




• Unopposed teeth or portions thereof


• Abnormal enamel content or distribution


• Misaligned teeth


• Any abnormality in dental tissue or alignment or restriction of normal mandibular movement can lead to excessive wear in specific areas along the arcades. Compensatory shifts in mandibular position or ROM can lead to secondary malocclusions.



Diagnosis image



Differential Diagnosis




• Skeletal curve in dish-faced breeds or individuals can mimic a wave.


• Caudal molar set well into curve of Spee can mimic a hook or ramp.



Initial Database




• Oral examination: Identification of malocclusions such as but not limited to:


image Hooks: Excessive crown height of maxillary 6s or mandibular 11s where the vertical height of the excessive crown is greater than the horizontal length
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Jul 24, 2016 | Posted by in SMALL ANIMAL | Comments Off on Malocclusions, Dental

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