Salivary levels of Bifidobacteria in caries‐free and caries‐active children

Abstract

Salivary levels of Bifidobacteria are significantly associated with caries experience in children. The salivary levels of this genus may be a useful marker of caries risk.

Aciduric microbial taxa including Scardovia wiggsiae and Bifidobacterium spp. in caries and caries free subjects

“…The probably most cariogenic Bifidobacterium frequently discussed is B. dentium, but we know little about the factors that influence its colonization of the dentition. Its numbers are under the detection limit (as in our study) or very low on caries-free tooth surfaces, but high in deep lesions [13], and data from studies of denture plaque provide further insight into its ecology [25,26]. Unlike mutans streptococci, B. dentium does not colonize hard surfaces per se since denture plaque associated with denture stomatitis harbored high levels of mutans streptococci, lactobacilli and yeasts but not B. dentium [13].…”

“…Additional species have been associated with disease when S. mutans or lactobacilli were absent, including Bifidobacterium dentium [6,13,22], and more recently Scardovia wiggsiae [11,23,24]. The probably most cariogenic Bifidobacterium frequently discussed is B. dentium, but we know little about the factors that influence its colonization of the dentition.…”

“…(low abundance, utilizes organic acids serving as an acid sink [8]), Rothia dentocariosa (relevant in a few caries patients, few publications about its cariogenic role [10]), Selenomonas sp. (ambiguous role [8]), Slackia exigua (interesting, but very limited data [11]), Streptococcus salivarius (relevant in caries but cross contamination with saliva reduces discriminative power [12]), other non-mutans-streptococci (ambiguous role, low discriminative power), and yeasts (no significance [13]), leaving Scardovia wiggsiae, Bifidobacterium spp., and especially the species Bifidobacterium dentium as candidate indicators. Atopobium spp.…”

Scardovia Wiggsiae and the Other Microorganisms in Severe Early Childhood Caries

“…wiggsiae, which is a member of Bifidobacteriaceae family, is recently identified and thought to be an important part of cariesrelated microbial complex [9]. Studies have showed that there is a relationship between the presence of caries and Bifidobacteriaceae Bifidobacteria and Scardovia's high prevalence [7,8,26,27].…”

“…Kanasi et al reported that S. mutans and Bifidobacterium species are in a strong relationship with S-ECC [7]. Kaur et al found that high levels of salivary bifidobacteria are also associated with the increased number of caries activity in children [8]. Tanner et al identified a highly significant relationship between the S-ECC and S. mutans, Scardovia wiggsiae, Veillonella parvula, Streptococcus cristatus, Fusobacterium nucleatum and Actinomyces gerencseriae Materials and Methods [9].…”