Microbiological Evaluation of Elastomeric Chains

Abstract

Objectives: To evaluate in vitro the surface of elastomeric chains of different manufacturers to verify the presence of pathogenic microorganisms at the moment of unpacking and analyze a possible inhibitory effect of the elastomeric chain when exposed to microorganisms of the oral cavity, for example, Streptococcus mutans, Lactobacillus casei, and Candida albicans. Materials and Methods: Elastomeric chains from Ortho-Organizers Inc, 3M Unitek, and Dental Morelli were placed in petri plates with brain heart infusion agar medium and in sterile test tubes with brain heart infusion broth. The samples were incubated at 37ЊC and analyzed at 24 hours, 48 hours, 3 days, and 7 days. In addition, elastomeric chains from the three manufacturers were placed in dishes, inoculated with microorganisms, incubated at 37ЊC, and analyzed after 24 and 72 hours. Results: No microorganism growth was detected after all incubation periods. No inhibition zones were identified surrounding the elastomeric chain. Conclusions:The results suggest that the fabrication of elastomeric chain is in accordance with biohazard concepts. However, careful manipulation is necessary to avoid colonization of pathogenic microorganisms since the composition of the elastomeric chains analyzed do not include antimicrobial agents.

Effectiveness of various sterilization methods of contaminated post-fitted molar band

“…3,4 This finding fits with a research conducted by Huser et al, 13 which stated that the usage of molar bands can increase the number of fusobacterium, spirocheta and spirilla, that are usually found on periodontitis. The steam autoclave sterilization provides the best result in decontamination of post fitted molar band, assuming gramnegative bacteria also.…”

“…These areas contain the anaerobic gram-negative bacteria, such as Porphyromonas gingivalis and Actinobacillus actinomicetemcomitans. 2,3 While supragingival plaque composed of gram-positive bacteria, such as Streptococcus sanguis, Streptococcus mutans, Streptococcus mitis, Streptococcus salivarius and Lactobacillus. These bacteria play an important role in dentistry, as they are sources of mouth diseases, such as caries and periodontitis.…”

Photocatalytic antimicrobial effect of TiO2 anatase thin-film–coated orthodontic arch wires on 3 oral pathogens

“…Finally, as the bacteria cohere to each other, the oral biofilm is formed, and it is the oral biofilm from which persistent infections are derived (Al-Ahmad et al, 2009). The relationship between orthodontic appliances and Candida has been studied in a few reports (Hägg et al, 2004;Casaccia et al, 2007;Hibino et al, 2009). It is a fact that the presence of prostheses or appliances increases the presence of Candida in the oral environment (Hibino et al, 2009).…”

In situ evaluation of orthodontic elastomeric chains

“…Elastomeric chains have been widely used in Orthodontics since the 1960s and its effects has been evaluated since then (1)(2)(3)(4)(5). They are used to deliver continuous light forces during sliding mechanics in diastema closure (6), rotational correction, and mainly during canine retraction after premolar extraction (7,8).…”