Centers & Services

Department of Preventive Dentistry

What is Department of Preventive Dentistry?

The aim of our department is to make patients to be able to eat with their teeth during the whole lifetime and to maximize their oral function.

Our members

Director, Department of Preventive Dentistry

Manabu Morita, Professor
[Preventive dentistry]


Daisuke Ekuni Associated professor [Preventive dentistry]
Koichiro Irie Lecturer [Preventive dentistry]
Tetsuji Azuma Assistant professor [Preventive dentistry]
Noriko Takeuchi Assistant professor [Preventive dentistry]
Toshiki Yoneda Assistant professor [Preventive dentistry]
Kota Kataoka Assistant professor [Preventive dentistry]

[ ]: Specific area

Outpatients clinic services in the Department of Preventive Dentistry

  Monday Tuesday Wednesday Thursday Friday
Outpatient dentist First-visit outpatient(Morning) Associated professor Professor Lecturer Professor Assistant professor
First-visit outpatient(Morning)
Outpatient dentist in specific clinic Bad breath (Halitosis) clinic      
Xerostomia (Dry mouth) clinic        

○ Circles represent outpatient clinic service requiring appointments, which is administered by all members.

Opening Hours

First-visit outpatient service: 8:30 a.m. to 11:30 a.m. from Monday through Friday
Revisiting outpatient service: 8:30 a.m. to 12:00 a.m. and 1:00 p.m. to 4:00 p.m. from Monday through Friday
Outpatient service in bad breath (Halitosis) clinic: 8:30 a.m. to 11:30 a.m. on Monday and Friday (First-visit outpatients are accepted every day.)
Outpatient service in Xerostomia (Dry mouth) clinic: 8:30 a.m. to 11:30 a.m. on Tuesday

Treatment policy

Two major factors contributing to tooth loss are caries and periodontal disease. Based on the use of fluoride for the former and oral hygiene for the latter, we perform oral treatment, management and maintenance. We meet the needs of patients to raise their degree of their satisfaction with treatment. Above all, we strive to meet their need and desire to preserve their teeth.


  • We have a good track record of preserving as many teeth as possible by providing management of caries and periodontal diseases for patients who are asked to visit the office every one to six months to maintain their oral condition.
  • Bad-breath (halitosis) treatment: examination, diagnosis, and individualized treatment
  • Xerostomia (dry mouth) treatment: examination, diagnosis, treatment, oral care, and advices

Scope of Target diseases

  • Prevention of periodontal diseases
  • Prevention of caries
  • Bad breath (halitosis)
  • Xerostomia (dry mouth)

Highly advanced/ specialized medical treatments

Techniques conducted as clinical research

  • Research on mouth rinses to prevent bad breath (halitosis) (Not considered an advanced or specialized treatment.)

Techniques conducted as medical treatment at a patient’s own expense

  • Bad breath (halitosis) treatment (Not considered an advanced or specialized treatment.)

Main methods for testing and explanation

  • Periodontal examination: probing pocket depth, clinical attachment level, bleeding on probing tooth mobility, and plaque score
  • Examination of bad breath (halitosis): patient interviews, organoleptic examination, tongue coating status, and measurements using devices [gas chromatography and OralChroma (FIS Inc., Itami)]
  • Xerostomia: patient interviews (symptoms, applied medicine and others), mucosal moisture index, oral moisture meter (moisture in submucosal tissues), and salivary flow rate (resting and stimulated)