Purpose: The aim of this study was to investigate the dental visit status of patients with diabetes mellitus who needed to treatment of periodontitis screened by immunological salivary hemoglobin detection test (Perioscreen Sunstar) in the medical and dental clinic cooperation at community base.

Materials and Methods: The study population was patient with diabetes mellitus undergone periodontal screening tests by a family doctor, who is diabetologist in the internal medicine. In total, 100 subjects were selected. The dental visit status of the diabetes mellitus patients with positive results was investigated according to correspondence between the medical and dental information including intraoral clinical examination: number of remaining teeth, maximum value of the periodontal pocket and percent of bleeding on probing, and type of periodontal treatment.

Results: Fifty-seven patients were positive for Perioscreen Sunstar. Among the patients with positive results, 32 patients (56.1%) visited one of three partnership dental offices and all received periodontal treatment. Twenty-six patients (45.6%) were finished their periodontal treatment within 6 months. For the patients who finished dental treatment, parameters of periodontal diseases were improved.

Conclusion: About 60% patients with diabetes mellitus who regularly attend the medical clinic were positive for periodontitis by Perioscreen Sunstar. Among them, about 60% patients attended for dental clinic by the recommendation by family doctor. These results may provide the basic information to medical and dental clinic cooperation and community medical care networks.

Purpose: The purpose of this study was to evaluate effect of nonthermal atmospheric discharge on tooth bleaching in vitro by color measurement using a dental colorimeter and an industrial colorimeter.

Materials and Methods: The air stream of nonthermal atmospheric discharge was exposed on the hematoporphyrin stained paper for 5, 10, 20, 30, and 60 minutes respectively. The air stream without atmospheric discharge (negative control) and a commercially available tooth bleaching material (positive control) were also prepared. The L*a*b* values on the treated surface at each step was measured by a dental colorimeter and an industrial colorimeter. Color difference was calculated from those values. The artificial discolored bovine teeth samples were prepared and exposed by the air stream of atmospheric discharge for 5, 10, 20, 30, and 60 minutes, and the color change was evaluated.

Results: The nonthermal atmospheric discharge showed bleaching effect for both hematoporphyrin stained paper and artificial discolored bovine teeth. Although the measured color values of both colorimeters were not consistent statistically, they showed high correlation.

Conclusion: It was concluded that nonthermal atmospheric discharge showed the bleaching effect and two colorimeters were useful for measuring color of hematoporphyrin stained paper and artificial discolored bovine teeth.

The present report consists of the long-term clinical course of an implant-supported overdenture retained with magnetic attachments in the edentulous mandible of a patient with a smoking history. A 60-year-old man was referred to our hospital with a chief complaint of a mobile mandibular denture. The patient was completely edentulous and exhibited resorbed alveolar ridges. Four osseointegrated implants were placed in the anterior mandible between the mental foramina. Following implant surgery, magnetic attachments were placed on each implant and a temporary denture was applied immediately. However, two of the four implants did not achieve osseointegration; these were removed and replaced after complete healing. The final superstructure was designed to include four magnetic attachments supported by four implants for retention of the overdenture. Eight years after placement, no adverse changes were observed in the implant bodies, superstructures, or peri-implant tissues. This was attributed to the cessation of smoking by the patient; adequate maintenance, including plaque control; and durability of the magnetic attachments. This case also suggests that immediate loading of isolated implants should be avoided in the presence of risk factors such as smoking.