Loss of deciduous teeth and germs of permanent incisors in a 4-year-old child. An atypic prepubertal periodontitis? A clinical, microbiological, immunological and ultrastructural study
| Autor: | J. C. Robert, Martine Bonnaure-Mallet, J.-L. Sixou |
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| Rok vydání: | 1997 |
| Předmět: |
Pathology
medicine.medical_specialty Neutrophils Dentistry Connective tissue Tooth Exfoliation Aggregatibacter actinomycetemcomitans Basement Membrane Epithelium Tooth Eruption Periodontal pathogen Tooth Loss stomatognathic system Metronidazole Deciduous teeth Humans Medicine Cementum Tooth Root Tooth Deciduous Porphyromonas gingivalis Permanent teeth Dental Cementum biology business.industry Tooth Germ biology.organism_classification Rete pegs Anti-Bacterial Agents Incisor Microscopy Electron stomatognathic diseases medicine.anatomical_structure Aggressive Periodontitis Connective Tissue Fluorescent Antibody Technique Direct Child Preschool Actinobacillus Microscopy Electron Scanning Periodontics Female Tooth Mobility business Facial Dermatoses Follow-Up Studies |
| Zdroj: | Journal of Clinical Periodontology. 24:836-843 |
| ISSN: | 1600-051X 0303-6979 |
| DOI: | 10.1111/j.1600-051x.1997.tb01198.x |
| Popis: | A 4-year-old child was referred, in April 1988, to Rennes Dental School (France) for deciduous tooth mobility with premature loss of 4 deciduous teeth and germs of 2 permanent incisors. Microbiological examinations by culture revealed the presence of the periodontal pathogen Actinobacillus actinomycetemcomitans. Immunofluorescence of plaque samples revealed the presence of Porphyromonas gingivalis that had not been isolated by culture. Neutrophil functions were within normal ranges. Transmission electron microscopy of gingiva showed a disorganised epithelium. The connective tissue was infiltrated by inflammatory cells. The basement membranes were normal, but the connective tissue-epithelium interface was mainly composed of short rete pegs. Scanning electron microscopy of extracted deciduous teeth revealed lack of cementum, lacunae in the cementum and lack of fibrillar insertion on the middle part of the root. Skin lesions, mainly situated on face, were observed. Treatment was by extraction of mobile deciduous teeth combined with 3-week courses of metronidazole. Clinical and microbiological follow-up was continued over a 7-year period. No periodontal lesions have been detected since eruption of the permanent teeth. The present subgingival and lingual microflora (December 1995) is composed of bacteria associated with periodontal health. However, the future appearance of a hitherto undetected systemic disease is still possible. |
| Databáze: | OpenAIRE |
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