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Embryogenesis of the gingival cyst
Journal of Clinical Periodontology
|March 1, 1983
Summary
Gingival cysts originate from the dental lamina during fetal development, showing degeneration as early as 10 weeks in utero. This study details their proliferation and histological characteristics in developing human jaws.
Area of Science:
- Oral pathology
- Developmental biology
- Histology
Background:
- Gingival cysts are developmental anomalies.
- Their origin from the dental lamina is of interest.
- Understanding early cyst formation is crucial for pediatric dentistry.
Purpose of the Study:
- To investigate the embryogenesis of gingival cysts.
- To analyze the histological development of these cysts from the dental lamina.
Main Methods:
- Histological examination of human fetal jaws (10 pairs).
- Analysis of celloidin sections from human fetal skulls.
- Observation of cystic degeneration in the dental lamina at different gestational ages.
Main Results:
- Cystic degeneration in the dental lamina observed from 10 weeks gestation.
- Rapid cyst proliferation noted in 15-20 week old fetuses during tooth development.
- Dental lamina epithelium dispersed extraosseously, resembling adult odontogenic epithelium.
Conclusions:
- Dental lamina epithelium has a predisposition for cystic degeneration.
- The dental lamina is a likely source of gingival cysts.
- This epithelium may also contribute to other gingival neoplasms and hamartomas.