Professional teeth cleaning by a registered dental hygienist aims to remove plaque, tarter and stains that have accumulated on the teeth. Even with routine brushing and flossing of your teeth and gums, tarter can develop. The professional cleaning of teeth is a crucial part of good oral hygiene and is needed periodically to maintain the health of your teeth and gums. Most dentists recommend having your teeth professionally cleaned every 6-12 months to reduce the likelihood of periodontal disease progressing. In between routine cleanings, good oral hygiene at home is vital to prevent tarter build-up and gum disease.