Dens invaginatus - ANSWER"Dens in dente"
Inside the tooth
Dens evaginatus - ANSWERForms an extra bump or cusp
Premolars most likely affected
Outside the tooth
Recent Extraction side on X-ray disappears after how long? - ANSWERAbout 18 months
What is mesiodens? - ANSWERSupernumerary tooth in the midline between central incisors
What problems does mesiodens cause? - ANSWERMalocclusion
Food impaction
Poor aesthetics
Cyst formation
Concrescence is? And caused by what? - ANSWERCementum joins two teeth together
Caused by crowding or trauma
Taurodontism caused by? - ANSWERFailure or late invagination of Hertwigs epithelial root sheath
Where are lateral perio cysts found? Can they be probed? - ANSWERBetween mandibular premolars
on the mesial side of the man 1st premolar
CANNOT be probed
When taking a pan X-ray do they need a thyroid collar? - ANSWERNo
, If you take a periapical radiograph of the upper right molars and you see a ghost image of the
anterior teeth, what happened? - ANSWERFilm was double exposed
Digital film is: - ANSWERFaster than F speed film
What can a pan best detect? - ANSWERThird molars or cysts/tumors
If 8 and 9 are present, and so are the permanent first molars how old is the patient? - ANSWERAt
least 6 yrs old
If lower permanent canines are erupted then the patient is most likely around? - ANSWER9-10yrs
Patient shouldn't have 2nd molars yet
If you see permanent premolars erupting and the primary molars have exfoliated, how old are they?
- ANSWER10-12yrs
When does first permanent molar erupt? - ANSWER6yrs
Pulp is composed of? - ANSWERFibroblasts, blood vessels, lymphatic channels, nerves and
connective tissue
Which of the following parts of the tooth is the first to form? - ANSWEREnamel
Mesenchyme gives rise to all of the following except? - ANSWEREnamel
Gives rise to: dentin, pulp, cementum
Lacunae contain what? - ANSWERSmall spaces that contain the bone cells (osteocytes)
What do canaliculi provide? - ANSWERRoutes for nutrients to reach the osteocytes