Oral-B Brush Head Developed Black Spots and Possible Mold

I have been using a Braun Oral-B Pro Timer electric toothbrush for a long time, and for the past 3–4 months, I have been experiencing a serious problem with the replacement brush heads. They are normally supposed to be replaced every three months, but because I kept noticing the same issue with every brush head before that period was over, I have had to replace more than seven brush heads. Despite this, I encountered a similar problem every time.

Although the part of the brush head that comes into contact with my teeth looked completely clean, I suspected there was a problem in the area where the brush head attaches to the toothbrush because I kept seeing black spots. Until now, I assumed that this was simply discoloration caused by the metal part. I continued using the toothbrush by frequently replacing the brush heads. However, after seeing a video on Instagram in which a user showed mold growing inside electric toothbrush heads, I broke open one of my own brush heads and looked inside. I was shocked to see that the inside looked almost identical to the mold shown in the video.

I am someone who brushes my teeth regularly and takes great care to keep my toothbrush clean. Even though I thoroughly wash the brush head after every use to prevent toothpaste residue from remaining, I had no way of noticing this issue because the inside of the brush head is not visible. When we also broke open and checked my spouse's brush head from the same brand and model of electric toothbrush, we found the same appearance inside. For this reason, I believe the problem is not limited to a single brush head but may affect multiple brush heads and possibly be related to the design or construction of the product itself.

I am very concerned to have experienced this with a brand I trusted and specifically chose because it is a health-related product. This situation is concerning from a health perspective and has seriously affected my trust in the brand. I tried to deal with the issue on my own by replacing the brush heads frequently, but I encountered the same result every time.

I request that this issue be investigated, that the necessary technical and hygiene checks be carried out on the brush heads, and that I be provided with an explanation and, if deemed necessary, a replacement or other appropriate solution for the affected products. Since this product directly affects oral and dental health, I also ask that the potential risk of mold growth be taken seriously and that other users experiencing similar issues be informed.