(Dental Anomalies)

(Anomalies) (anomalies) (abnormality)(variation)

(Anomalies)(hereditary) (congenital) (developmental)(metabolic)

(Anomalies) (calcification) (apposition)

(Abnormal number of teeth)

1.

( dental lamina and bud stage) (hereditary)

(dental lamina) (tooth bud) (hereditary) (supernumerary teeth)

Anodontia: failure of teeth to develop (same as

agenesis of teeth) Hypodontia: having less than 6 congenitally

missing teeth.(partial anodontia) Oligodontia: having 6 or more congenitally

missing teeth. Hyperdontia: extra teeth, same as

supernumerary teeth, may be singleor multiple as in CCD.

(anodontia) (complete lack of teeth) (missing teeth)(impacted teeth) (missing teeth)

(total anodontia)

(ectodermal defect)

(Total anodontia)

(partial anodontia)

() (vestigial)

(Partial anodontia)

Oligodontia

Ectodermal dysplasia

(supernumerary teeth)

( accessory teeth)(extra)

Fourth molar Supernumerary bicuspid

Mesiodens

(Supernumerary teeth)

Hyperdontia and Cleidocranial dysplasia

(accessory teeth) (partial anodontia)(supernumerary teeth) (anodontia) 1%

(Abnormal size of teeth)

)

(bell stage) (morphodifferentiation) (genetic)

(macrodontia) ( giantism)

a (true macrodontia) (pituitary giantism)b (false macrodontia)

(Macrodontia)

(microdontia) ( dwarftism)

a (true microdontia) (pituitary dwarfs) b (false microdontia) (peg lateral)

(Abnormal shape of teeth)

(crown) (root)

(morphodifferentiation) (apposition)

(dens in dente) (enamel organ) (pulp cavity) X(posterior teeth) (lingual pit)X

(Dens in dente / Dens invaginatus)

Dens evaginatus

(dilacerations)

(crown)

(flexion)

(dilacerations)

(germination)

(tooth germ) (twinning)()

(fusion)

(tooth bud)

(concrescence)

(Segmented root)

Hertwigs (Hertwigs sheath) (dentinogenesis)

(Dwarfed root)(size normal)

(outline abnormal)

(Hypercementosis) (root)

(Accessory roots and cusps)

a

Talon cusp ()

(accessory roots)

(Enamel pearls) (enaloma) (enamel drop) (enamel) Hertwigs (Hertwigs sheath) X

(Hutchinsons teeth)

(hypoplasia) (enamel hypoplasia) (prenatal syphilis) (treponema) (ameloblastic morphodifferentiation) (screw driver shape) (notch) (mulberry appearance) (gnarled enamel)

Hutchinsons incisorHutchinsons molar

(abnormal shape of teeth)

14. (odontoma)a (odontoma)

(benign tumar)(odontoma) (growth of calcified dental tissue) ectodermal ( enamel) mesoderm ( dentin cementum pulp) (dental lamina) (follicle)

(odontoma) (complex odontoma)

(compound odontoma)

(calcification) (apposition)

(histo-differentiation)

(apposition) (enamel) (dentin) (calcification) (matrix)

(Enamel dysplasia)

(enamel) (local) (systemic) (hereditary) (banded) (ridged) (pitted)

(enamel hypoplasia)(enamel hypocalcification)

(hereditary amelogenesis imperfecta)

(dental fluorosis) (mottled enamel)

(focal hypomaturation) (Turners teeth)

(Enamel hypoplasia) (Enamel hypocalcification)

(enamel matrix formation)

(enamel matrix maturation)

(Hereditary amelogenesis imperfecta)

(rampant caries) (attrition)

-- Hypoplastic type-- Hypocalcified type-- Hypomaturation type

Hypoplastic type

Inadequate formation of enamel matrix, both pitting and smooth types exist. Enamel may be reduced in quantity () but is of normal hardness.

Hypocalcified type

Aefect not in the quantity but in the quality() of enamel. It is poorly mineralized, soft and chips and wears easily.

Hypomaturation type

A defect in the crystal structure of enamel leads to a mottled enamel with white to brown to yellow colors.

(Dental fluorosis) ( Mottled enamel)

(enamel calcification) (fluoridation) (enamel matrix)(hypocalcification) (chalky white bands or areas)

(Focal hypomaturation)

(enamel dysplasia) (chalky white or opaque)

(Turners teeth)(dental follicle) (deciduous pulp)

(Dentinal hypoplasia)

(histodifferentiation)(apposition) (enamel dysplasia)

(tetracycline staining) (hereditary dentinogenesis imperfecta)

(Tetracycline staining)

(widespectrum antibiotic tetracycline) (mineralization) (intrinsic staining) (primary teeth) (permanent teeth)

(Hereditary dentinogenesis imperfecta)

(genetic)(opalescence) (bluish brown) (opalescence dentin) (dentin)

(Resorption)

Ectopia ()

(Compound odontoma)

Complex odontoma

(Dental Anomalies) (Anomalies) (Anomalies) (Anomalies) (Abnormal number of teeth) (Total anodontia) (Partial anodontia)OligodontiaEctodermal dysplasiaMesiodens(Supernumerary teeth)Hyperdontia and Cleidocranial dysplasia 20 (Abnormal size of teeth) (Macrodontia) (Abnormal shape of teeth) (dens in dente) (Dens in dente / Dens invaginatus)Dens evaginatus (dilacerations) (flexion) (germination) (fusion) (concrescence) (Segmented root) (Dwarfed root) (Hypercementosis) (Accessory roots and cusps) (Enamel pearls) (Hutchinsons teeth)Hutchinsons incisor Hutchinsons molar (abnormal shape of teeth) (odontoma) (calcification) (apposition) (Enamel dysplasia) (Enamel hypoplasia) (Enamel hypocalcification) (Hereditary amelogenesis imperfecta)Hypoplastic typeHypocalcified typeHypomaturation type (Dental fluorosis) ( Mottled enamel) (Focal hypomaturation) (Turners teeth) (Dentinal hypoplasia) (Tetracycline staining) (Hereditary dentinogenesis imperfecta) 60 (Resorption)Ectopia () (Compound odontoma)Complex odontoma