Buffering effects of plaque solid, Streptococcus mutans and glucans / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 263-265, 2006.
Artigo
em Chinês
| WPRIM
| ID: wpr-354402
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the buffer capacity of insoluble plaque mass including bacteria and glucans matrix.</p><p><b>METHODS</b>Plaque samples (starved or incubated 1 h with 10% sucrose), Streptococcus mutans (S. mutans) mass, and insoluble/soluble glucans were titrated with 1 mmol/L HCl. Meanwhile, the density of bacteria was counted and related to buffer capacity.</p><p><b>RESULTS</b>The bacteria density had significant effects on acid buffer capacity in dental plaque, but the effect reduced with consuming sugar. S. mutans mass with no sucrose incubating contributed to the buffer capacity of (0.609 +/- 0.202) mmol/L, and S. mutans mass with 2% sucrose had only the buffer capacity of (0.099 +/- 0.047) mmol/L. In the mean time, glucans had no effect on acid buffering (0.028 - 0.032 mmol/L).</p><p><b>CONCLUSIONS</b>The bacteria including S. mutans may be the main contributor to acid buffering in plaque solid.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Streptococcus mutans
/
Ácidos
/
Contagem de Colônia Microbiana
/
Suscetibilidade à Cárie Dentária
/
Placa Dentária
/
Glucanos
/
Metabolismo
/
Microbiologia
Limite:
Adolescente
/
Adulto
/
Feminino
/
Humanos
/
Masculino
Idioma:
Chinês
Revista:
Chinese Journal of Stomatology
Ano de publicação:
2006
Tipo de documento:
Artigo
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