ABNORMALITIES of TEETH. Abnormalities of Teeth Environmental abnormalities of teeth Developmental...

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Transcript of ABNORMALITIES of TEETH. Abnormalities of Teeth Environmental abnormalities of teeth Developmental...

  • Slide 1
  • ABNORMALITIES of TEETH
  • Slide 2
  • Abnormalities of Teeth Environmental abnormalities of teeth Developmental abnormalities of teeth
  • Slide 3
  • Environmental alterations of teeth Developmental tooth defects Postdevelopmental structure loss Discolorations of teeth Localized disturbances in eruption
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  • Visible environmental enamel defects can be classified into one of three patterns: Hypoplasia Diffuse opacities Demarcated opacities
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  • Factors associated with tooth defects
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  • Environmental effects on tooth structure development Turner hypoplasia Molar-Incisor hypomineralization Hypoplasia caused by antineuplastic therapy Dental fluorosis Syphlititic hypoplasia
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  • Post developmental loss of tooth structure Attrition Abrasion Erosion Abfraction
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  • Internal resorption Exteranal resorption
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  • Environmental discoloration of teeth
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  • Extrinsic stains Intrinsic stains
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  • Localized disturbances in eruption Impaction Ankylosis
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  • Developmental alterations of teeth
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  • Developmental alterations in the number of teeth Anodontia Hypodontia Oligodontia Hyperdontia Supernumerary teeth Supplemental Rudimentary
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  • Developmental alterations in the size of teeth Microdontia macrodontia
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  • Developmental alterations in the shape of teeth Gemination Fusion Concrescence Accessory cusps Cusp of carabelli Talon cusp Dense evaginatus
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  • Dense invaginatus( dense in dente ) Type I Type II Type III Ectupic enamel Enamel pearls Cervical enamel extentions Taurodontism Hypercementation Dilaceration Supernumerary roots
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  • Developmental alterations in the structure of teeth Generalized pattern Amelogenesis imperfecta *Hypoplastic Amelogenesis Imperfecta Localized pattern Autosomal dominant smooth pattern X-linked smooth pattern Rough pattern Enamel agenesis
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  • * Hypomaturation Amelogenesis Imperfecta Pigmented pattern X-linked pattern Snow capped pattern *Hypocalcified Amelogenesis Imperfecta * Amelogenesis Imperfecta with Taurodontism Hypomaturation-hypoplastic Hypoplastic-hypomaturation
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  • Hereditary opalescent dentin (type I) Brandywine isolate (Type II) Dentin dysplasia type I (radicular dentin dysplasia-rootless teeth) Dentin dysplasia type II (coronal dentin dysplasia) Regional odontodysplasia (ghost teeth) Dentin dysplasia Dentinigenesis imperfecta
  • Slide 20
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