| Registro completo |
| Provedor de dados: |
International Journal of Morphology
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| País: |
Chile
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| Título: |
Immunohistochemical Analysis of Proliferating Cell Nuclear Antigen (PCNA) in Dental Follicles of Impacted Third Molars
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| Autores: |
Oliveira,David Moraes de
Silveira,Márcia Maria Ferreira da
Andrade,Emanuel Sávio de Souza
Sobral,Ana Paula Veras
Martins-Filho,Paulo Ricardo Saquete
Santos,Thiago de Santana
Oliveira,Patrícia Leimig Amorim de
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| Data: |
2011-06-01
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| Ano: |
2011
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| Palavras-chave: |
Immunohistochemistry
Dental Sac
Third Molar
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| Resumo: |
This study investigated the immunodetection of PCNA in epithelial components of dental follicles associated with impacted third molars without radiographical and morphological signs of pathosis. A total of 105 specimens of dental follicles associated with impacted third molars with incomplete rhizogenesis (between Nolla's stage 6 and 9) were surgically removed from 56 patients. Epithelial cell proliferating was determined by using immunohistochemical labeling. Statistical analysis was performed using the Fisher exact test. Of the 105 dental follicles collected, 6 were PCNA-positive ( 6%). The specimens with squamous metaplasia and epithelial hyperplasia had higher rates of positivity for PCNA, as well as those with proliferative remnants of odontogenic epithelium. In conclusion, this study shows that dental follicles at this stage of development have low proliferative potential, but suggests that squamous metaplasia, hyperplasia of the epithelial lining and presence of proliferative odontogenic epithelial rests in the connective tissue may be early signs of developing lesions of odontogenic origin.
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| Tipo: |
Journal article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200037
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| Editor: |
Sociedad Chilena de Anatomía
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| Formato: |
text/html
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| Fonte: |
International Journal of Morphology v.29 n.2 2011
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