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Bull Tokyo Dent Coll. 2016;58(3):177-186. doi: 10.2209/tdcpublication.2016-0039.

Periodontist-Dental Hygienist Collaboration in Periodontal Care for Chronic Periodontitis: An 11-year Case Report.

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Department of Periodontology, Tokyo Dental College.
Section of Dental Hygiene, Tokyo Dental College Chiba Hospital.
Kigure Dental Clinic.
Department of Endodontics and Clinical Cariology, Tokyo Dental College.


We report a case of severe chronic periodontitis treated and longitudinally maintained by a periodontist and dental hygienists. The patient was a 45-year-old woman who presented with the chief complaint of gingival bleeding and tooth mobility. An initial examination revealed generalized gingival inflammation and subgingival calculus in the premolar and molar regions. Premature contact was observed in #14 and 45. Clinical examination revealed 42% of sites with a probing depth (PD) of ≥4 mm and 44% of sites with bleeding on probing. Radiographic examination revealed vertical bone resorption in #35, 36, and 45, and horizontal bone resorption in other regions. Based on a clinical diagnosis of severe chronic periodontitis, initial periodontal therapy consisting of plaque control, scaling and root planing, and removal of an ill-fitting prosthesis was performed. Following suppression of inflammation, occlusal adjustment of premature contact sites was performed. Open flap debridement was performed for teeth with a PD of ≥5 mm. After confirming the stability of the periodontal tissue, final prostheses were placed on #16, 35-37, and 46. Following re-evaluation, the patient was placed on supportive periodontal therapy. It has been 11 years since the patient's first visit, and the periodontal conditions have remained stable. Meticulous periodontal care maintained over a number of years by a periodontist and dental hygienist have yielded a clinically favorable outcome.


Chronic periodontitis; Collaboration; Dental hygienist; Plaque control; Supportive periodontal therapy

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