Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. References 1, , and , “Assessment of Microbial Contamination of Toothbrush Head: An In Vitro Study,” Indian Journal of Dental Research 22, no. 1 (2011): 2–5. 2 and , “Toothbrush Contamination: A Review of the Literature,” Nursing Research & Practice 2012 (2012): 1–6.