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Tooth Developmental Problems (view source)
Revision as of 15:01, 1 October 2014
, 15:01, 1 October 2014→Abnormalities of the Crown
==Abnormalities of the Crown==
==Abnormalities of the Crown==
[[File:Enamel dysplasia.jpg|right|200px|thumb|Enamel dysplasia]]
[[File:Generalised enamel dysplasia.jpg|right|200px|thumb|Generalised enamel dysplasia]]
[[File:Localised enamel dysplasia.jpg|right|200px|thumb|Localised enamel dysplasia]]
[[File:Enamel dysplasia radiograph.jpg|right|200px|thumb|Radiograph showing enamel dysplasia]]
Abnormalities of the [[Enamel Organ#Crown|crown]] may occur during development resulting in '''microdontia''' (smaller crown), '''macrodontia''' (larger crown), '''peg teeth (conically shaped teeth) as well as '''geminated crowns''' (double crown) or '''fused teeth''' (two separate tooth buds fused at the crown by [[Enamel Organ#Enamel|enamel]] and sometimes [[Enamel Organ#Dentin|dentine]]).<br>
Abnormalities of the [[Enamel Organ#Crown|crown]] may occur during development resulting in '''microdontia''' (smaller crown), '''macrodontia''' (larger crown), '''peg teeth (conically shaped teeth) as well as '''geminated crowns''' (double crown) or '''fused teeth''' (two separate tooth buds fused at the crown by [[Enamel Organ#Enamel|enamel]] and sometimes [[Enamel Organ#Dentin|dentine]]).<br>
This is clinically important from a periodontal health aspect to avoid plaque stagnation areas between overcrowded teeth. It is also important when planning extraction of an abnormal tooth to take [[Intra-Oral Radiography - Small Animal|radiographs]] as abnormal [[Enamel Organ#Root|root]] formation is not uncommon with these teeth.
This is clinically important from a periodontal health aspect to avoid plaque stagnation areas between overcrowded teeth. It is also important when planning extraction of an abnormal tooth to take [[Intra-Oral Radiography - Small Animal|radiographs]] as abnormal [[Enamel Organ#Root|root]] formation is not uncommon with these teeth.
Dens in dente - tooth within a tooth
Dens in dente - tooth within a tooth
This occurs when the tooth bud folds in on itself resulting in [[Enamel Organ#Enamel|enamel]], [[Enamel Organ#Dentin|dentine]] and pulp being produced with the tooth itself. Usually the invagination results in pulp exposure, and ultimately pulp necrosis. Often the crown has an abnormal shape but the diagnosis is made radiographically. <font color="red">(Pic14-rad)</font color>
This occurs when the tooth bud folds in on itself resulting in [[Enamel Organ#Enamel|enamel]], [[Enamel Organ#Dentin|dentine]] and pulp being produced with the tooth itself. Usually the invagination results in pulp exposure, and ultimately pulp necrosis. Often the crown has an abnormal shape but the diagnosis is made radiographically. <font color="red">(Pic14-rad)</font color>
==Root Abnormalities ==
==Root Abnormalities ==