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At least 127 records · Page 7Linked to original sources
PubMed1985

Mouth-to-mouth transmission of the bacterium Streptococcus mutans between mother and child.

The production of bacteriocins by 314 Streptococcus mutans isolates from 20 mother-infant pairs was studied to test the likelihood of maternal transmission of this species. The patterns of inhibition were sufficiently different to allow differentiation of the 314 isolates into 41 bacteriocin types. The bacteriocin codes of isolates within one pair did not correspond to the codes of strains isolated from any other pair. The number of infant strains (per infant isolates) matching maternal strains within each mother-infant pair were 10/10, 10/10, 10/10, 12/12, 2/3, 10/10, 10/10, 10/10, 3/3, 5/10, 8/8, 3/3, 8/8, 3/3, 7/7, 4/4, 3/3, 8/8, 3/3 and 4/4 for pairs 1-20, respectively. Statistical analysis, utilizing a randomization test, generated a p value less than 0.0001, which is 12 standard errors above the level expected if the pairings were random.

Bacteriocins↗
PubMed1987

The diluting effect of saliva on the sucrose concentration in different parts of the human mouth after a mouth-rinse with sucrose.

Saliva at four buccal sites [between the upper (UC) and lower (LC) central incisors, and between the upper (UM) and lower (LM) second premolar and first molar], and also whole saliva, was collected from 10 subjects at 0.5, 2.5, 5.5 and 10.5 min after a rinse with 10 ml of 0.3 mol/l sucrose solution. After 0.5 min, unstimulated salivary flow rate was inversely correlated with sucrose concentration in whole saliva (p less than 0.05). Sucrose concentration decreased faster at LC than at other sites. Sucrose dilution at UC and LC was inversely correlated (p less than 0.05) with salivary flow rate at times after 0.5 min. At 10.5 min, the sucrose concentration at all sites was significantly correlated (p less than 0.05) with the salivary flow rate.

Adult↗
PubMed1992

Quantitation and morphotyping of Candida albicans from healthy mouths and from mouths affected by erythematous candidosis.

Imprint culture and a mouthwash method were used to determine if quantitative differences exist between isolates of Candida albicans from individuals with healthy oral mucosa and from patients with erythematous candidosis (EC). The C. albicans isolated were differentiated by morphotyping. No quantitative difference in yeast isolations was observed with either technique irrespective of tobacco smoking status, the presence of a prosthesis, or EC. Multiple morphotypes were isolated from smokers with upper dentures and from smokers and non-smokers with EC, whilst a single morphotype was isolated from non-smokers with a healthy oral mucosa.

Adult↗