Dental anomalies Flashcards
Partial anodontia is…
One or more missing teeth from a dentition
The cause of partial anodontia is thought to be…
Hereditary
Are anomalies more prevalent in permanent or primary dentition?
Permanent
Name the anomaly where a small supernumerary tooth is located between central incisors
Mesiodens
Supernumerary teeth are most frequent in what regions?
Maxillary incisors & maxillary third molars
A tooth that has undergone gemination has…
A single, unsplit root with a common pulp canal
What is gemination/twinning?
Incomplete tooth division where the single forming tooth splits; crown appears doubled in width
Describe fusion
The union of two adjacent tooth germs involving the dentine. They have fused roots with separate pulp chambers.
Fusion of teeth is more commonly found in…
Primary dentition > secondary dentition
Mandibular incisor area > maxilla
Macrodontia impacts…
Incisors & canines
Microdontia impacts…
Maxillary lateral incisors & third molars
Dilaceration of a tooth refers to…
The severe bend/angular distortion of a tooth root
The cause of dilaceration can be from…
Traumatic mouth injury or insufficient development space
What is dens in dente?
“Tooth within a tooth”
Occurs due to the invagination of enamel organ within the crown of a tooth
Dens in dente is prevalent in the…
Maxillary lateral incisors
