Oral B toothbrushes are designed to work specifically with their own brand of replacement brush heads. Each model of Oral B toothbrush may have unique connections and compatibility requirements, so using third-party brush heads could result in suboptimal performance or even potential damage to the toothbrush. It is essential to ensure that the brush head fits securely and is intended for use with the specific Oral B model you own. Oral B offers a variety of brush head options suited for different needs, such as sensitive teeth, gum care, and plaque removal. By selecting the appropriate Oral B brush head, users can maximize the effectiveness of their oral care routine. For a complete list of available brush heads and their compatibility, visiting the current Oral B website can provide detailed information tailored to your toothbrush model.