Studies have shown that only no more than 30% of adults can use the "Pap Brush Method" to brush their teeth for more than 1 week, and even fewer. 2021-04-28
Studies have shown that only no more than 30% of adults can use the "Pap Brush Method" to brush their teeth for more than 1 week, and even fewer. For most people, no matter how they emphasize the importance of time, they will only choose to spend 1 minute. Therefore, in order to protect the oral ca