Hi there! Thank you for your lovely feedback - we are absolutely thrilled to hear your little one loves brushing with her ISSA™ Mikro. However, please note that ISSA™ Mikro is not a chewing toy and our warranty does not cover cosmetic deterioration caused by fair wear and tear, or damage caused by accident, misuse or neglect. Furthermore, please note that as per the ISSA ™ mikro user manual, 'vigorous chewing may cause damage to the silicone cover of the toothbrush over time. Babies and young children should always be supervised by a responsible adult while using the toothbrush.' Please be extra careful, as it is possible for the silicone to break amid all the biting. It is also important to emphasize that our company policy usually requires you to send the device back to us so that we can properly dispose of it before sending you a replacement. Please note that all FOREO devices are recyclable. Once you disassemble your device, and once it is safe to go outside, you can take the device to your local electronics recycling center. Most electronic waste facilities will gladly accept and recycle FOREO devices. Another option is to dispose of parts individually if your local electronics recycling center will not take the FOREO device as a whole unit. If you need more information on how to recycle your FOREO devices, kindly contact our lovely Customer Care agents, who will be happy to provide further instructions. Kindest regards <3