title: Resolution of localized chronic periodontitis associated with longstanding calculus deposits.
abstract: This report, which is based on nonstandardized serial radiographs obtained over a period of 15 years, documents a case of localized chronic periodontitis associated with progressive deposition of calculus on the distal aspect of a mandibular second molar. The site was treated by scaling and root planing, followed by a course of adjunctive systemic azithromycin. Treatment yielded favorable reductions in probing depth and clinical inflammation, leaving only few isolated sites with pockets no deeper than 4 mm. Two years after completion of active treatment, there was radiographic evidence of increased bone density distal to the second molar.
authors.affiliation: Division of Periodontology, College of Dentistry, The Ohio State University Wexner Medical Center, 305 West 12th Avenue, Columbus, OH 43210, USA.
authors.forename: Pin-Chuang
authors.identifier: 0000-0002-8965-2106
authors.initials: PC
authors.lastname: Lai
authors.affiliation: Division of Periodontology, College of Dentistry, The Ohio State University Wexner Medical Center, 305 West 12th Avenue, Columbus, OH 43210, USA.
authors.forename: John D
authors.initials: JD
authors.lastname: Walters