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Salivary streptococcus mutans and lactobacilli in relation to rampant caries pattern among children | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 23, Issue 4, 2011, Pages 153-157 | ||
| Author | ||
| Yasameen A.A. Al-Bayati | ||
| Abstract | ||
| ABSTRACTBackground: Several interrelated factors which are the tooth and saliva (host), microorganisms, substrate and timeare involved in the process of dental caries. Rampant caries is a severe form of tooth decay that can affect primaryor permanent teeth. It is characterized by its speed of onset and progression. Nursing caries is a type of rampantcaries affecting the primary teeth of young children and has been associated with prolonged unrestricted bottle orbreast feeding. This study was conducted in order to estimate the salivary level of streptococcus mutans andlactobacilli among the rampant, nursing caries and control (caries free) children.Materials and methods: Seventy five children aged 3 to 10 years old were included in the study. Forty six childrenwere selected for colony counting (19 children with nursing caries, 13 children with rampant and 14 children withcaries free).Dental caries was measured using dmfs, DMFS for primary and permanent teeth respectively using thecriteria of WHO. One ml of unstimulated (resting) whole saliva was collected from the children using spitting methodthen diluted and applied on the surface of agar media specific for streptococcus mutans and lactobacilli growth.Colony forming units with morphology characteristic of s. mutans and lactobacilli were counted and expressed asnumbers of CFU per ml of saliva.Results: The results of present study showed no significant difference in the number of colonies of Streptococcusmutans and lactobacilli among nursing, rampant and caries free groups (p>0.05) however there was a highlysignificant difference in caries experience in the primary teeth among the three groups (p<0. 01) and a significantdifference in caries experience in the permanent teeth among the three groups (p<0.05).Conclusion: The etiology of dental caries is multifactorial in that simultaneous participation of multiple factors isrequired for caries to occur. Streptococcus mutans and Lactobaculli are microorganisms with cariogenic capacity,however, their presence only do not determine the presence of dental caries.Key words: streptococcus mutans, lactobacilli, nursing caries, rampant caries, saliva. (J Bagh Coll Dentistry2011;23(4):153-157). | ||
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