Flora microbiana endodóntica (microbiota)
Especies bacterianas predominantes aisladas de conductos radiculares de dientes con lesiones periapicales expresado en porcentajes de las especies aisladas (Sundqvist en Guldener, 83)
| Fusobacterium nucleatum |
10 |
Wolinella recta/curva |
5 |
| Streptococcus species |
8 |
Prevotella oralis |
4 |
| Lactobacillus (aerobios) |
8 |
Peptostreptococcus species |
4 |
| Bacteroides species |
7 |
Porphytomonas endodontalis |
3 |
| Peptostreptococcus micros |
7 |
Capnocytophaga ochracea |
3 |
| Peptostreptococcus anaerobius |
7 |
Actinomyces species |
3 |
| Prevotella intermedia |
5 |
Arachnia propionica |
2 |
| Eubactenum lentum/timidum |
5 |
Selenomonas sputigena |
2 |
| Fusobacterium species |
5 |
Porphyromonas gingivalis |
1 |
No se ha podido demostrar correlación directa entre algún microbio radicular específico y alguna enfermedad endodóntica o manifestación clínica precisa.
Fusobacterium nucleatum is an anaerobic Gram-negative non-spore forming bacterium, and the type species for the genus Fuosbacterium.
The cells of F. nucleatum are spindle-shaped or fusiform rods of variable length. Studies in laboratories, including ours, have shown that the organism obtains energy via the fermentation of carbohydrates and specific amino acids, producing butyrate as a major metabolic end-product.
F. nucleatum is a common human dental plaque isolate and based on its ability to adhere to a wide range of other plaque microorganisms it is proposed to play a crucial role in plaque development.
F. nucleatum is frequently associated with periodontal diseases, as well as invasive human infections of the head and neck, chest, lung, liver and abdomen. Properties of F. nucleatum that may be related to virulence include it's adherence to and invasion of host tissue cells, and modulation of the host immune response.
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