4th: Occlusion Flashcards
Is the mandible or maxilla usually longer?
Maxilla
Where does the lower canine sit?
Between upper canine and incisor with a slight forward tilt
How much overlap should there be between upper and lower incisors?
1/3 overlap, with the upper incisors in front
What are the two causes of malocclusions?
Skeletal base abnormality (breeding) or a dento-alveolar defect
What does and overshot jaw look like?
Mandible is short / brachygnathic
What does an undershot jaw look like?
Mandible is long / prognathic
Is it better to be brachy or prognathic?
Brachygnathic - as may improve
What is cross bite?
Where the tooth is closer to either the cheek or tongue than it should be (compared to the corresponding tooth above or below it)
What causes incisor cross bite?
Mandible grows too slow or fast
What are the risks of crown reduction and pulp capping?
Chronic pulpitis
What is a snaggle tooth?
Upper incisor at 45 degree angle
Which breeds are prone to snaggle tooth?
Shelties and Persian cats
Which breeds are predisposed to deciduous canines?
Small breed
Which way do retained deciduous canines push to mandibular and maxillary permanent canines?
Mandibular ones lingually, maxillary ones rostrally
How do you splay the lower canines?
Ball therapy
