2 Tooth Abnormalities Flashcards
What causes this?
Tetracycline taken by the mother during pregnancy
Diagnosis of this tooth?
Turner’s hypoplasia
What causes Turner’s hypoplasia?
A periapical inflammatory disease of the primary dentition causes hypoplasia of the underlying, developing deciduous tooth.
Too much of what causes this?
Fluoride (esp. in the first few years of life when these teeth are developing)
Hutchinson’s incisors are manifestations of what congenital disease?
Congenital syphilis
Seen as a manifestation of congenital syphilis, what would you call this unique tooth anatomy?
Mulberry Molars
*part of the Hutchinson’s triad seen w/ congenital syphilis*
What’s happening here?
Fluorosis from too much fluoride exposure
What kind of post-developmental loss of tooth structure is this?
Attrition *caused by bruxism*
What kind of post-developmental loss of tooth structure is this?
Abrasion
What kind of post-developmental loss of tooth structure is this?
Abfraction
*aka Noncarious cervical lesions*
What kind of post-developmental loss of tooth structure is this?
Erosion
What kind of post-developmental loss of tooth structure is this?
Erosion
What is this kind of hyperdontia called?
Mesiodens
What would present with this kind of radiopaque spot within this tooth?
Dens-in-dente
What can we see on the tooth in figure A?
Dens evaginatus
What’s happening with the tooth in the marked area?
Dens invaginatus
Besides having conical teeth, what other manifestations would this child present with?
No sweat glands and fine hair (hypohydrotic ectodermal dysplasia)
What is this?
Dens invaginatus
What is this type of dens evaginatus called?
Talon cusp
What kind of developmental disturbance in tooth shape is happening here?
Fusion
What kind of developmental disturbance in shape is happening?
Gemination
If this patient has one tooth less than they “should” what could this condition be?
Fusion
What is this craziness?
Concrescence
What’s joining these teeth?
Cementum (condition = concrescence)
This root is wacky. What do you call this?
Dilaceration
Name what’s happening here. (hint: the tooth is not running or dancing)
Dilaceration
Look at the teeth. How do you diagnose this?
Dental transposition
This person is also missing a clavicle. What is a possible diagnosis?
Cleidocranial dysplasia
This patient is congenitally missing more than 6 teeth, so what could it be classified as?
Oligodontia
Name the type of developmental disturbance.
Hyperdontia
Why is this tooth not even with the occlusal table?
It is ankylosed
What do you call this?
Peg lateral
What do you tell the frantic mother?
This is called Riga-Fede disease, and it’s irritation/laceration of soft tissue by the newly erupted primary incisors.
The pulp is enlarged and the floor is more apical. What could this be?
Taurodontism
What three syndromes are associated with pulp chambers like this?
Kleinfelter’s syndrome, amelogenesis imperfecta, tricho-dento-osseous syndrome
Paget’s disease can be associated with this presentation.
Hypercementosis
Look at the cementum. What is this called?
Hypercementosis
Pitted teeth like this are consistent with what pathology?
hypoplastic amelogenesis imperfecta
What might be a diagnosis?
Hypoplastic amelogenesis imperfecta
This patient has dental sensitivity and they report the primary teeth looked the same way. Diagnose!
Amelogenesis imperfecta
Snowcapped crowns are a presentation of what?
hypomaturation amelogenesis imperfecta
On radiograph the roots are very thin and the patient has blue sclera. What’s the diagnosis?
Osteogenesis imperfecta
The sclera of the patient’s eyes isn’t blue, and the teeth have thistle-shaped roots. Diagnosis?
Type II Dentin dysplasia
Give a diagnosis
Type I dentin dysplasia
Otherwise known as “ghost teeth”
regional odontodysplasia
