[The periodontally affected tooth from the restorative aspect]

On each periodontally affected tooth with loss of attachment caries lesions may develop under bacterial plaque on the root surface. The prevention of root caries follows the rules of prevention for crown caries: 1) optimized oral hygiene, 2) reduced intake of fermentable carbohydrates, and 3) fluor treatment. Successful periodontal therapy can prevent root caries with good professional management of the patient and/or adequate preventive measures on the part of the patient. If root fillings become necessary aspects of secondary caries prevention, like good margins and fluor treatment, and filling/margin/periodontium are of utmost importance. Progressive periodontal disease might affect pulp tissue. Careful endodontic monitoring of the tooth is indicated. There are yet no established measures for the treatment of dentin hypersensitivity after periodontal treatment.