Customers frequently commend the Oral-B 3D White Toothbrush for its effective and thorough cleaning, often noting that it leaves teeth feeling clean and smooth. Many reviews discuss bristle firmness, with some preferring softer bristles for sensitive teeth and gums, while others appreciate the firm yet gentle cleaning. The design and size of the toothbrush head are a recurring topic, with some users finding it too large, while others find it to be an appropriate size or beneficial for reaching difficult areas. The handle and grip are generally well-received for comfort and ease of use. Several users observe a brightening or whitening effect on their teeth, although some note no significant change or express uncertainty. The unique bristle design, including polishing cups, is mentioned as contributing to the cleaning experience. Some reviewers compare its performance favourably to other manual toothbrushes, while a few find no substantial difference. The toothbrush's ability to reach tough spots in the mouth is also highlighted. A small number of users express concern about potential harshness or damage to tooth enamel. Many customers indicate they would recommend or repurchase the product.