In vivo biofilm formation on stainless steel bonded retainers during different oral health-care regimens

Abstract

The combined use of antibacterial toothpaste and mouthwash containing essential oils affects bacterial growth on retainers. Following orthodontic treatment, fixed retainers are often used to prevent teeth moving back to pre-treatment positions. However, bacteria causing oral disease tend to accumulate along the retention wires. A team from the Netherlands led by Yijin Ren at the University Medical Center Groningen has examined the effect of various oral health-care regimens on bacterial growth on retention wires. Although the use of antibacterial toothpaste alone decreased the viability of bacteria on the wires, a greater effect was observed when a mouthwash was subsequently used. Using both products minimized the growth of certain pathogenic bacteria, suggesting that the toothpaste makes small changes to the surfaces of the bacterial cells, facilitating their removal by the oils in the mouthwash.

Keywords

antimicrobials / biofilm / bonded retention wires / mouthrinse / orthodontics

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