Supernumerary Tooth Germ-like Tissues <i>in gingiva</i>
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- MASUDA Keiji
- Department of Pediatric Dentistry, Kyushu University Hospital
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- NAKAMURA Shiho
- Section of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University Faculty of Dental Science
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- MATSUISHI Yumiko
- Department of Pediatric Dentistry, Kyushu University Hospital
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- NISHIGAKI Soichiro
- Section of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University Faculty of Dental Science
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- YAMAZA Haruyoshi
- Section of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University Faculty of Dental Science
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- YANAGITA Ken-ichi
- Department of Pediatric Dentistry, Kyushu University Hospital
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- NONAKA Kazuaki
- Section of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University Faculty of Dental Science
Bibliographic Information
- Other Title
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- 下顎乳臼歯部舌側歯肉に歯胚様組織を含む腫瘤を認めた1例
- Case Report
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Abstract
We treated a 2-year-11-month-old Japanese boy with a gingival lesion including supernumerary tooth germ-like tissues. The initial physical examination found a 10×5×5 mm red sessile nodule in the lingual mucosa of the left first deciduous molar region of the mandible. The lesion showed no erosion, ulcer, or inflammatory signs, and X-ray imaging revealed no destructive findings in the deciduous teeth, tooth germs of the permanent successors, or bone. Based on these features, we suspected epulis and surgically excised the nodule.A microscopic examination of the excised specimen showed well-circumscribed dental germ-like structures in the submucosal layer, which were composed of undifferentiated mesenchyme of the dental papilla surrounded by columnar cells resembling pre-ameloblasts. No enamel or dentin formation was detected. These findings were most suggestive of supernumerary tooth germs. A peripheral developing odontoma was also considered a possibility, though a definitive diagnosis could not be made due to lack of enamel or dentin formation.The postoperative course was satisfactory and there was no recurrence of the lesion at a 4-year follow-up examination.
Journal
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- The Japanese Journal of Pediatric Dentistry
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The Japanese Journal of Pediatric Dentistry 50 (4), 297-303, 2012
Japanese Society of Pediatric Dentistry
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Details
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- CRID
- 1390001205519894784
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- NII Article ID
- 10031121927
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- NII Book ID
- AN00116228
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- ISSN
- 21865078
- 05831199
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed