Longitudinal Study of the Combined Orthodontic-Periodontal Therapy in Young Patients with the Malposed Anteriors

• Published in: Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) Vol. 28; no. 1; pp. 287 - 298
• Main Authors: HANADA, Kooji, HARA, Kohji, YANAGIMURA, Noriko, YANAGIMURA, Mitsuhiro, SASAKURA, Hitoshi
• Format: Journal Article
• Language: Japanese
• Published: JAPANESE SOCIETY OF PERIODONTOLOGY 1986
• Subjects: Longitudinal study; Malposed anteriors; Orthodontic therapy; Periodontic therapy; Team approach
• ISSN: 0385-0110; 1880-408X
• DOI: 10.2329/perio.28.287

The purpose of the present study was to evaluate longitudinally the effects of periodontal therapy on periodontium of young patients during orthodontic therapy. Twenty-four patients who had malocclusion in their anterior teeth and high inflammation in their periodontium were selected. Before starting therapy, their periodontal conditions were examined according to Gingival Index, probing depth, width of keratinized gingiva, width of attached gingiva, tooth mobility and plaque control record. During orthodontic therapy, all patients were recalled every month, and enforced the significance of plaque removal and motivated. After 2-3.5 year of active treatment and maintenance, the following results were obtained. 1. The Gingival Index score decreased from 1.32.± 0.48 to 0.23.± 0.48 (p<0.001) 2. Probing depth decreased from 2.10.± 0.70mm to 1.88.± 0.64mm (p<0.001) 3. Width of keratinized gingiva increased from 3.76.± 1.24mm to 3.99.± 1.20mm (p<0.001) 4. Width of attached gingiva also increased from 1.72.± 0.94mm to 2.45.± 1.01mm (p<0.001) 5. Tooth mobility decreased from 0.37.± 0.50 to 0.04.± 0.20 (p<0.001) 6. Plaque control score decreased from 86.3.± 17.0% to 35.1.± 28.0%. However, the decrease rate was not constant and there were great variations in patients. In conclusion, it was revealed that long term maintenance of periodontium was prerequisite for young patients in orthodontic therapy and regeneration of tissues would be expected by co-operative perioortho therapy.