Maternal care and homology of Streptococcus mutans in binomials mother-child.

CARLETTO KÖRBER FPM, GONZÁLEZ ITTIG RE, JIMENEZ MG & CORNEJO LS

Mar del Plata, Argentina

Congreso; XXXIX Reunión Anual de la Sociedad Argentina de Investigación Odontológica; 2007

Sociedad Argentina de Investigación Odontológica

The relationship was evaluated between the transmission and homology of the strains of Streptococcus mutans (SM) in binomials mother-child and the person charge of the child care, in patients attend the University Hospital of Maternity and Neonatology. We studied 17 binomials, the mothers gave their informed consent in writing for the participation of the binomial in this investigation. Through a survey carried out the mother data they were obtained regarding the person in charge of the child care and samples of total saliva and the mother´s dental plaque and the child took to the 6 and 18 months after the birth. The samples were sowed in the selective means (Agar Mitis Salivarius Bacitracin) and the colonies were identified morfologic and biochemically and to the ends of evaluating the degree of homology of SM in the binomials, was used the technique of Polimerase Chain Reaction with Arbitrary Primers (AP-PCR). To the 6 months of the child´s birth 94,11% was under the care of mother and in 100% of the saliva samples the infant´s the presence of the microorganism was not detected. To the 18 months of the child´s birth 70,58% was under the care of mother and the initial colonization for SM in the studied binomials, was observed in 29,41% the samples of saliva and in 100% the samples of dental plaque. The analysis of homology of strains of SM in the binomials, 47,05% of the children that were under the care of their mother presented genetic similarity. We recognize to the mother like the most important source in infection for the chid, but we consider that they should be kept in mind other biological and socio-cultural factors in the transmission and initial acquisition of SM in the early age.