A novel, easy-to-use mouthwash that moisturizes the mouth and can counteract oral dryness has recently been shown to be effective. However, usersʼsubjective assessments of the usability of the mouthwash have yet to be evaluated. Thus, a questionnaire was administered to users of the experimental mouthwash to evaluate its usability. The subjects were 74 persons(59 men; mean age 43.5±21.26 years), who were divided into two groups by age: young subjects, 45 persons(45 men; mean age 24.9±4.7 years); and elderly subjects, 29 persons(14 men; mean age 64.4±7.8 years). The mouthwash was a commercially available product to which a salivation promotion component(kelp extract) and moisturizing components(betaine, sodium hyaluronate)were added. The questionnaire comprising 9 items was administered before and after use of the mouthwash. The questionnaire asked patients to use appropriate scales to rate oral dryness, saliva characteristics, halitosis, intraoral pain, sore throat, unpleasantness of the mouthwash,usability and taste of the mouthwash, and desire to use it in the future. The results showed significant improvements in oral dryness, sore throat, saliva characteristics, and halitosis after use of the mouthwash in both young and elderly persons. In addition, many generally affirmative views of the usability of the experimental mouthwash were obtained. Thus,there was a uniform evaluation across the generations that use of the experimental mouthwash is effective. The results of the questionnaire suggest that this novel mouthwash for oral dryness can be used by people of all generations.

Dental implants are one of the major techniques to treatment of the teeth loss region.Some surgical guides for safety dental implant surgery have been presented. This paper show the case of a single intermediate missing treated by dental implant with minimallyinvasive safety procedure using novel guide template. This paper produces the contents of dental treatment, the checks of the operability in the mouth by simulation with the maximum use of radiographic guide, and the points at the operation with clear figures.

Symptoms of chronic maxillary sinusitis should be investigated thoroughly by taking radiographs and biopsy which may reveal rhinomaxillary form of mucormycosis which is a rapidly spreading fungal infection commonly affecting patients with decreased resistance or having uncontrolled diabetes. It begins with inhalation of the fungus by susceptible individuals and rapidly spreads by arterial invasion causing widespread tissue destruction and necrosis. Identification of the mucor hyphae in biopsy specimen is vital in the diagnosis of this condition and institution of antifungal therapy along with surgical debridement can control this fulminant infection from causing death of the individual.