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Enamel hypoplasia
Roentgeno-oddities
ENAMEL
HYPOPLASIA
. T-year-old white boy was referred iible “third ” complete set of teeth.
for consultation
with the diagnosis of
Each month this section will bring to the readers of ORAL SURGERY, ORAL MEDICISE ANI) Piii~H01,00~ one or more roentgenograms which demonstrate unusual, unexpected, rare, or bizarre roentgenographic changes. These roentgenograms mill be accompanied by an explanation or by words of inquiry regarding the particular change. All films used in this section will be accept& with the understanding that 2 by 2 or 3% by 4 inch slides or glossy photographs of the films will bc made available to interested readers through the editor of the American Academy of Oral Itoentgenology at the individual’s oxprnse. The cost will involve only the photographer’s charges. Each sbde or print will give credit to the donor. Jnteresting roentgenograms are solicited from all sources. Please be certain to identify your films All material for publication shou&d be submitted to properly so that they can br returned. Dr. Arthur 11. Wuehrmann, University of Alabama School of Dentistry, Medical Center, Birmingham, Alabama. ORAL
338
Volume Number
22 3
Roentgenographic csamination show-cd the peculiar appearance, particularly in t,he anterior region, of a shadow resembling a double exposure or a “third” set of teeth. Careful examination of the patient’s past medical history indicated that he had a severe cxanthematous disease at the age of approximately 16 months. The patient. had brcn hospitalixcd with spasms and partial loss of function of the right lower extremities. Although bulbar polio and a form of encephalitis were suspected, a detinit,ire diagnosis was ncvcr made. The age at which this sevcrc high-fcvcr distxase occurred, coupled with the roentgenographic appcarancc of the involved teeth, is indicative of enamel hypoplasia of the permanent teeth. The approximate level at, which this abnormalit,y occurs coincides with the level of tooth formation at about 16 months of age. A mesiodens was also present. Diagnosis: Enamel hypoplasia resulting from disturbance of amelogenesis during tooth formation at approximately 16 months of age. Williava N. Alexander, Major, DC, USA Lcttcrman General IIospital San Francisco, Calif.
ENAMEL
HYPOPLASIA
. T-year-old white boy was referred iible “third ” complete set of teeth.
for consultation
with the diagnosis of
Each month this section will bring to the readers of ORAL SURGERY, ORAL MEDICISE ANI) Piii~H01,00~ one or more roentgenograms which demonstrate unusual, unexpected, rare, or bizarre roentgenographic changes. These roentgenograms mill be accompanied by an explanation or by words of inquiry regarding the particular change. All films used in this section will be accept& with the understanding that 2 by 2 or 3% by 4 inch slides or glossy photographs of the films will bc made available to interested readers through the editor of the American Academy of Oral Itoentgenology at the individual’s oxprnse. The cost will involve only the photographer’s charges. Each sbde or print will give credit to the donor. Jnteresting roentgenograms are solicited from all sources. Please be certain to identify your films All material for publication shou&d be submitted to properly so that they can br returned. Dr. Arthur 11. Wuehrmann, University of Alabama School of Dentistry, Medical Center, Birmingham, Alabama. ORAL
338
Volume Number
22 3
Roentgenographic csamination show-cd the peculiar appearance, particularly in t,he anterior region, of a shadow resembling a double exposure or a “third” set of teeth. Careful examination of the patient’s past medical history indicated that he had a severe cxanthematous disease at the age of approximately 16 months. The patient. had brcn hospitalixcd with spasms and partial loss of function of the right lower extremities. Although bulbar polio and a form of encephalitis were suspected, a detinit,ire diagnosis was ncvcr made. The age at which this sevcrc high-fcvcr distxase occurred, coupled with the roentgenographic appcarancc of the involved teeth, is indicative of enamel hypoplasia of the permanent teeth. The approximate level at, which this abnormalit,y occurs coincides with the level of tooth formation at about 16 months of age. A mesiodens was also present. Diagnosis: Enamel hypoplasia resulting from disturbance of amelogenesis during tooth formation at approximately 16 months of age. Williava N. Alexander, Major, DC, USA Lcttcrman General IIospital San Francisco, Calif.