mutans colony count levels from the tongue surface in the first sample (P = 0.110) [Table 4]. The comparison of the S. mutans colony count levels from the tongue surface of the second samples of the Ondrohexidine?, Listerine? and control groups did reveal statistically significant differences (P = 0.017). The two-group comparison revealed that the S. mutans colony find more info count level of the control group was significantly higher than those of the MC?, Listerine? and Ondrohexidine? groups, whereas the comparisons between other groups did not reveal any statistically significant differences (P > 0.05), [Table 5].

Table 2 Streptococcus mutans colony count levels from the teeth surface on the first day after professional cleaning (first sample) and after 4th day (second sample): Results (P values) of Kruskal Wallis test * for comparison of mouth rinses Table 3 Post hoc Dunn’s multiple comparison tests to compare the differences between the teeth surface second sample values of the mouth rinses Table 4 Streptococcus mutans colony counts levels from the tongue surface on the 1st day after professional cleaning (first sample) and after 4th day (second sample): Results (P values) of Kruskal Wallis test * for comparison of mouth rinses Table 5 Post hoc Dunn’s multiple comparison tests to compare the differences between the second tongue sample values of the mouth rinses DISCUSSION During fixed orthodontic therapy, braces, bands, wires, and other attachments make it difficult for the patient to perform mechanical oral hygiene procedures; this difficulty results in plaque accumulation, which is the main cause of demineralization.

[1] Following the placement of fixed appliances, plaque volume, and S. mutans colony counts were shown to increase; after the removal of the appliances, S. mutans counts decreased to normal values.[19,20] Soet et al.[21] concluded that the most notable etiologic factor contributing to decay formation was S. mutans because this bacterium produced more acid than sobrius and mitis. There is double risk with respect to caries formation for orthodontic patients; besides the problem of cleaning of the tooth surfaces, S. mutans also exhibit high adhesion to the surfaces of brackets.[22] Antimicrobial mouth rinses are easy to use with fixed orthodontic appliances, and their ability to access most areas, including embrasures and around the appliances, makes them useful.

[9,23] Based on current Drug_discovery practices daily rinsing with a 0.05% sodium fluoride mouth rinse[24,25] is recommended for these patients. However patients�� compliance with these directions is often unsatisfactory.[26] There are some undesirable side effects[16] related to the continuous use of antimicrobial mouth rinses; which is why patients are advised to use these mouth rinses on a short-term basis. Also, the clinicians are prompted to seek alternative mouth rinses that could be used for long spans of time.