06 Anomalies of Development Flashcards
There is a wide range of normal for this tooth characteristic
color
What are you evaluating when you are looking for potential develoment anomolies
Texture and Structure
Weakness is Structure, excess wear, abrasion
Abnormal radiographic appearance
This is an abortive attempt by a single tooth bud to divide
Gemination
Union of normally discrete teeth
Fusion
Fusion of two teeth along the root surfac
concrescence
Complete cleavage of a tooth bud resulting in the formation of a supernumerary tooth
twinning
What is the clinical risk presented by taurodontism
Increased risk of pulp exposure
The pulp is easily exposed in these tooth anomolies
Dens in dente
Dens invaginatus
What is another name for Dens evaginatus
Talon cusp
This condition is autosomal dominant with incomplete penetrance and variable expression
hypodontia
Top 4 most likely missing teeth
Mn 2nd Premolar
Mx Lateral
Mx 2nd Premolar
Mn Lateral
This syndrome is
Autosomal Recessive
Polydactyly
Short Stature
Cardiac anomalies
Ellis Van Creveld Syndrome
Chondroectodermal dyplasia
This syndrome is Autosomal dominant
Missing maxillary incisors
Degeneration of the anterior chamber of the eye
Rieger Syndrome
This syndrome is X-Linked
Cleft lip/palate
Digital anomalies
Long Nose
Oro-Facial-Digital Syndrome (OFD-1)
This syndrome is Autosomal Recessive Broad nasal tip Cleft lip/palate Long nasal philtrum
OFD-II/ Mohr Syndrome
What do you need to see to define an abnormality as an ectodermal dysplasias syndrome
Must meet at least one of:
Involvement of two or more ectodermal tissues
Genetic diagnoses
First degree affected relative
This syndrome is x linked recessive
Multiple missing teeth
conical/peg teeth
lack of development of the alveolar process
Hypohidrotic Ectodermal Dysplasia
This syndrome is Autosomal Dominant
Multiple Odontomas
Intestinal polyps
High malignancy rate
Gardner’s Syndrome
This syndrome is Autosomal dominant
Extra teeth
Hypoplastic clavicles
Acorn shaped skull
Cleidocranial Dysplasia
This extra tooth syndrome has extra teeth in the area of bony sutures due to splintering of the developing tooth bud
Cleft lip and palate
This occurs in 1:14000 births
Defect is limited to tooth enamel
Dentin and Cementum are normal
Amelogenesis imperfecta
Normal thickness
Soft
Pitted surface
Moth eaten radiographic appearance
Hypocalcified AI
Soft enamel of normal thickness
Fractures and flakes aways
Enamel and Dentin are indistinguishable on x-ray
Hypomature AI
Teeth have normal enamel with an amber hue
Bulbous crown with short, conical roots
Primary and Permanent dentitions involved
Dentinogensis Imperfecta
