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Retrogressive Changes of Dental Lamina Rests in Human Fetal Maxilla : 사람태아 상악골내에 보이는 치제상피잔사의 퇴행성 변화
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Suk Keun | - |
dc.contributor.author | Lim, Chang Yun | - |
dc.contributor.author | Chi, Je G. | - |
dc.date.accessioned | 2009-08-20T05:14:27Z | - |
dc.date.available | 2009-08-20T05:14:27Z | - |
dc.date.issued | 1990-06 | - |
dc.identifier.citation | Seoul J Med, Vol.31 No.2, pp. 107-116 | - |
dc.identifier.issn | 0582-6802 | - |
dc.identifier.uri | https://hdl.handle.net/10371/7309 | - |
dc.description.abstract | In order to elucidate the retrogressive changes of dental lamina rest (DLR) in
human fetuses, 232 human maxillas were examined histologically. In 227 maxillas prepared for light microscopy, the dental laminas were composed of three portions: the dental lamina ridge, the primary dental lamina, and the secondary dental lamina. All of the dental laminas were separated into numerous small islets, i.e., dental lamina rests (DLRs). DLRs of the dental lamina ridge especially showed heavy keratinization in their center. Almost all of the DLRs from the primary and secondary dental laminas became atrophic and degenerative. While abundant capillary proliferation was observed in the vicinity of the DLRs, occasionally small numbers of inflammatory cells infiltrated around the atrophic DLRs. In five cases prepared for electron-microscopy, the degenerating DLRs showed tonofilaments which were reduced in number and considerably aberrant. The basal laminas of the degenerating epithelial cells were gradually destroyed with the increase of gestational age, and a few inflammatory cells containing a large quantity of Iysozome adhered to the DLR to destroy the entire basal lamina directly. In this study we confirmed that the DLRs were resorbed by the processes of both self-degeneration and the cytotoxic reaction of inflammatory cells. | - |
dc.language.iso | en | - |
dc.publisher | Seoul National University College of Medicine | - |
dc.subject | Prenatal retrogressive change | - |
dc.subject | Dental lamina | - |
dc.subject | Human fetus | - |
dc.title | Retrogressive Changes of Dental Lamina Rests in Human Fetal Maxilla | - |
dc.title.alternative | 사람태아 상악골내에 보이는 치제상피잔사의 퇴행성 변화 | - |
dc.type | SNU Journal | - |
dc.contributor.AlternativeAuthor | 이석근 | - |
dc.contributor.AlternativeAuthor | 임창윤 | - |
dc.contributor.AlternativeAuthor | 지제근 | - |
dc.citation.journaltitle | 서울 의대 잡지 | - |
dc.citation.journaltitle | 서울 의대 학술지 | - |
dc.citation.journaltitle | Seoul Journal of Medicine | - |
dc.citation.endpage | 116 | - |
dc.citation.number | 2 | - |
dc.citation.pages | 107-116 | - |
dc.citation.startpage | 107 | - |
dc.citation.volume | 31 | - |
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