Anomalies Flashcards
(14 cards)
what is amelogenesis imperfecta
inherited disorder, autosomal dominant, recessive, x-linked
thin, soft, yellow enamel, easily damaged, sensitive to hot + cold
affects all teeth
family history
types of AI
hypoplastic = enamel crystals not grown to correct length
hypocalcified = crystallites fail to grow in thickness and width
hypomaturational = enamel crystals grow incompletely in width/thickness but normal length with incomplete mineralisation
taurodontism
problems with AI
sensitivity, caries, acid susceptibility, poor aesthetics, poor OH, delayed eruption, AOB
how to manage AI
preventative, FS, SS crowns
veneers, onlays, ortho
explain enamel hypoplasia
quantitative defect
reduced bulk but correct mineralisation
cause - systemic, nutritional, metabolic, infections
why would a pt have localised enamel hypoplasia
trauma
infection of primary
what conditions can be associated with enamel defects
epidermolysis bullosa, DS, prader-willi, porphyria, hurler’s
explain dentinogenesis imperfecta and the cause
hereditary defect causing issue with dentine formation
diagnose via appearance, FH, associated osteogenesis imperfecta, both dentitions, bulbous crowns, obliterated pulps
explain the types of dentinogenesis imperfecta
1 - associated with OI
2 - autosomal dominant
3 - brandywine
problems with DI
and management
aesthetics, caries, acid susceptibility, spontaneous abscess, poor prognosis
prevention, over dentures due to loss of OVD, veneers, SS crowns
explain dentine dysplasia
normal crown morphology, amber radiolucency pulp obliteration, short constricted roots
explain odontodysplasia
localised arrest in tooth development
thin layers enamel and dentine
large pulp chambers
ghost teeth
general disorders with associations with dentine formation defects
osteogenesis imperfecta
Ehlers-danlos syndrome
rickets
