A friend of mine had a filling done that ended up falling out within a month. The Dentist at this point said the tooth would need to be removed and have a implant put in. After the tooth was extracted and healed over several months, the Dentist has had her come in for a deep cleaning 4 times within 5 months. The Dentist stated this was necessary before doing the implant. Her insurance company isn't covering the cleanings saying they are not necessary. The Dentist is now billing her for the cleanings. I was wondering what normal procedure is for this surgery. Is she being taken advantage of.