too many deep cleanings?

My dental Tec has me doing deep cleanings 3 times a year for 4 years . I asked when can I go to a normal cleaning that  I  am covered for. He said that cleaning is just a polishing and is not any good. I have no more than a 4 cm as far as my numbers are and  that is not a big average. I was told that I have to keep doing this to keep my gums from getting worse.I have no bleeding even during the cleaning ,it cost me $75 every time .He is not doing Flaps what ever that is .My friend is an oral MD he thinks it is not normal. I never had to pay for cleanings before I changed my dentist and right at that point I had to pay any ideas on this

[Jerome Tsang, DDS]

I would recommend seeking another dentist.  There's no regular pattern for a deep cleaning, its just based upon the need of the patient and their ability to keep their oral health and hygiene up.  But if you're concerned about it, you may want to seek a second opinion to be sure.