I found a new dentist for RJ near our house. His previous dentist transferred to another place without informing us. So he didn't have a regular teeth cleaning for 2 years. The dentist said that RJ's teeth is still very clean, not a lot of tartar. My constant reminder of brushing two to three times a day, after every meal, helped.
It's very important to find a reliable dentist with a clean clinic that doesn't charge too much. A dentist who doesn't just know the difference between paracetamol and amoxicillin but knows when to give it. Hopefully, this dentist meets all my requirement.