Eichenauer Johanna, von Bremen Julia, Ruf Sabine
Department of Orthodontics, Justus-Liebig-University, Schlangenzahl 14, 35392 Giessen, Germany.
Head Face Med. 2014 Oct 10;10:43. doi: 10.1186/1746-160X-10-43.
It was aimed to assess the retention of caries-associated microorganisms on two different manual toothbrushes (conventional and tapered) and to evaluate the influence of multibracket appliances (MB) on the microbial contamination of the brush head.
50 MB-patients and 50 subjects without MB received a toothbrush (elmex® interX medium short head or meridol®) plus toothpaste (elmex®) for exclusive use and an information sheet with standardised brushing instructions. After 14 days of regular tooth brushing, the brushes were collected and sluiced in Sputasol solution. The suspension was incubated on selective agar plates and the amount of Streptococcus mutans, lactobacilli and Candida albicans for each brush head was assessed.
Regarding the retention of microorganisms, no differences could be detected between the two bristle designs. However, the amount of S. mutans was significantly higher on brushes used by MB-patients (p < 0.005) than on the brushes of subjects without MB. The number of Lactobacilli and C. albicans was minimal in all cases and below statistical evaluation.
During treatment with MB appliances, toothbrushes were contaminated more intensely with S. mutans independent of bristle design. A more frequent replacement of toothbrushes may thus be recommended for patients undergoing MB-treatment.
旨在评估两种不同手动牙刷（传统型和锥形）上与龋齿相关微生物的留存情况，并评估多托槽矫治器（MB）对刷头微生物污染的影响。
50名佩戴MB矫治器的患者和50名未佩戴MB矫治器的受试者分别获得一支牙刷（elmex® interX中短头牙刷或meridol®牙刷）和一支牙膏（elmex®牙膏）供其专用，并收到一份附有标准化刷牙说明的信息表。在进行14天的常规刷牙后，收集牙刷并在痰溶解液中冲洗。将悬浮液接种在选择性琼脂平板上，评估每个刷头的变形链球菌、乳酸菌和白色念珠菌数量。
关于微生物的留存情况，两种刷毛设计之间未检测到差异。然而，佩戴MB矫治器患者使用的牙刷上变形链球菌的数量显著高于未佩戴MB矫治器受试者使用的牙刷（p < 0.005）。在所有情况下，乳酸菌和白色念珠菌的数量极少，低于统计学评估水平。
在使用MB矫治器治疗期间，无论刷毛设计如何，牙刷均被变形链球菌更严重地污染。因此，对于接受MB治疗的患者，可能建议更频繁地更换牙刷。
