Streptococcus sanguis and Actinomycetes viscosus in oral biofilm foromation observed by sanning confocal laser microscopy / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6)2000.
Artículo
en Chino
| WPRIM
| ID: wpr-670492
ABSTRACT
砄bjectiveTo observe streptococcus sanguis (S.s) and Actinomycetes viscosus (A.v) in oral plaque biofilm formation.Methods:
20 ml of saliva obtained from a health adult was centrifuged at 4 ℃ and 10 000 r/min for 10 min.The supernatant was disinfected in 60 ℃ water bath for 30 min.Glass coverslips in the size of 24 mm?24 mm were immersed into the saliva supernatant for 2 h to obtain biofilm.100 ?l of S.s ATCC 34 and A.v ATCC 19246 mixture cultured in TSB at the density of 10 5~6 CFU/ml was added into 20 ml of TSB,and then,the coverslips with biofilm were put into the mixture.The biofilm and bacteria were observed by scanning confocal laser microscopy at various times.ResutsThe biofilm reached the thickness of 15.4 ?m in 8 h and the clumps of the bacteria were mostly in the midle layer of the biofilm.The biofilm increased to 34.3 ?m in 16 h and became tassle like in 48 h.Conclusion:
S.s and A.v may play some roles in the oral biofilm formation.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Journal of Practical Stomatology
Año:
2000
Tipo del documento:
Artículo
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