Effect of removable orthodontic appliances on oral colonisation by mutans streptococci in children

Abstract

Little is known about the effect of removable orthodontic appliances on oral colonisation by mutans streptococci (MS). In the present study, the frequency of isolation and serotype distribution of MS were evaluated in two groups of children, one undergoing therapy with removable appliances and the other not subjected to any kind of orthodontic treatment, respectively. Streptococci isolated from dental plaque samples from both groups of children were identified as mutans streptococci on the basis of their morphological and biochemical properties and were then serotyped in an enzyme immuno-assay using monoclonal antibodies. The number of subjects harbouring MS in their dental plaque was statistically higher in the group of orthodontic children without caries experience (CF) in comparison with CF children of the control group (10/12, 83.3% vs. 15/44, 34%). No clear difference was observed in the distribution of the different MS serotypes between the experimental and control group: S. mutans c,f serotype was the most frequently isolated in both groups of children followed by S. mutans serotype e and S. sobrinus serotype g. Such results suggest that the use of removable appliances may lead to the creation of new retentive areas and surfaces, which favour the local adherence and growth of MS. The data obtained stress the importance of a careful monitoring of patients treated orthodontically for risk of caries development.

Metal and Ceramic Bracket Effects on Human Buccal Mucosa Epithelial Cells

“…Placement of orthodontic appliances in a healthy oral cavity can induce a continuous accumulation of dental plaque, 1 alter the normal oral microbiota, 2,3 cause lesions in the buccal mucosa, 4 exacerbate periodontal disease, and consequently cause infection. 5 It is known that ulceration in the buccal mucosa is one of the most frequent complaints of patients because of the friction between bracket and mucosa, which causes discomfort for the patient.…”

Le contrôle de plaque, un élément essentiel du succès du traitement orthodontique

“…Rappelons que le A.a. est la seule bactérie incriminée dans les parodontites juvéniles ! Pour le risque carieux est rapportée une augmentation de Streptococcus mutans [2] et des lactobacilles [5], les deux bactéries incriminées dans la maladie carieuse.…”

History of Orthodontic Treatment, Treatment Needs and Influencing Factors in Adolescents in Croatia

“…Henceforth, future public health model should be oriented more toward family and also further developed so as to include more contemporary methods for public dental health education, as suggested in recent studies (29,30). Both fixed and removable orthodontic appliances register increase in bacterial microflora associated with early stages of caries caused by poor dental hygiene (31,32). But, in the case of students with orthodontic history, the children's concern for their teeth probably contributed to the lower caries experience (33).…”