UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062160
Receipt number R000071136
Scientific Title A non-randomized two-arm parallel comparative study of the usefulness of dental health guidance using an intraoral scanner compared with an intraoral camera
Date of disclosure of the study information 2026/07/07
Last modified on 2026/07/07 20:17:25

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Basic information

Public title

Evaluation of the usefulness of dental health guidance using an intraoral scanner: comparison with an intraoral camera

Acronym

Intraoral scanner dental health guidance study

Scientific Title

A non-randomized two-arm parallel comparative study of the usefulness of dental health guidance using an intraoral scanner compared with an intraoral camera

Scientific Title:Acronym

Intraoral scanner guidance comparative study

Region

Japan


Condition

Condition

Not applicable / Healthy volunteers

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to compare the effects of dental health guidance using an intraoral scanner with those using an intraoral camera in individuals aged 18 to under 30 years who have not received professional education in dentistry or oral health science.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Others

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change in Plaque Control Record (PCR) from baseline to 3 weeks after the initial dental health guidance

Key secondary outcomes

Changes in the stained plaque area ratio, changes in the area ratios of newly formed and mature plaque evaluated by two-tone plaque disclosing, changes in anterior PMA-index, understanding of the guidance content, motivation for oral hygiene, discomfort associated with the device used, and operator-rated usability


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Active

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking

NO

Concealment



Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

Dental health guidance using an intraoral scanner (TRIOS 3, 3Shape) will be provided. After plaque disclosure, intraoral scanner images will be used to show the oral condition and plaque accumulation sites to the participants, and toothbrushing points and the basic technique of the Bass method will be explained. The intervention will be provided twice: at baseline and at the second visit, which will be conducted between 21 and 35 days after the initial guidance.

Interventions/Control_2

Dental health guidance using an intraoral camera (WAVE PICT SD, Yoshida) will be provided. After plaque disclosure, intraoral camera images will be used to show the oral condition and plaque accumulation sites to the participants, and toothbrushing points and the basic technique of the Bass method will be explained. The intervention will be provided twice: at baseline and at the second visit, which will be conducted after 21 days or later after the initial guidance.

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

30 years-old >

Gender

Male and Female

Key inclusion criteria

Participants who meet all of the following criteria will be included:
1. Individuals aged 18 to under 30 years at the time of consent
2. Individuals who have not received professional education in dentistry or oral health science; however, first-year dental students may be included
3. Individuals who provide written informed consent to participate in the study

Key exclusion criteria

Participants who meet any of the following criteria will be excluded:
1. Individuals with a history of allergy to plaque disclosing agents
2. Individuals with a severe gag reflex
3. Individuals who are judged by the principal investigator to be unsuitable for participation in this study

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Rena
Middle name
Last name Takahashi

Organization

Institute of Science Tokyo

Division name

Department of Oral Health Care Education

Zip code

1138510

Address

1-5-45, Yushima, Bunkyo-ku, Tokyo

TEL

03-5803-0239

Email

rtakahasshi.ope@tmd.ac.jp


Public contact

Name of contact person

1st name Rena
Middle name
Last name Takahashi

Organization

Institute of scienn

Division name

Department of Oral Health Care Education

Zip code

1138510

Address

1-5-45, Yushima, Bunkyo-ku, Tokyo

TEL

03-5803-0239

Homepage URL


Email

rtakahashi.ope@tmd.ac.jp


Sponsor or person

Institute

Institute of Science Tokyo

Institute

Department

Personal name



Funding Source

Organization

Institute of Science Tokyo

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee Office, Institute of Science Tokyo

Address

1-5-45, Yushima, Bunkyo-ku, Tokyo

Tel

03-3726-1111

Email

rinri.adm@tmd.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 07 Month 07 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2026 Year 07 Month 01 Day

Date of IRB


Anticipated trial start date

2026 Year 07 Month 07 Day

Last follow-up date

2026 Year 10 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 07 Month 07 Day

Last modified on

2026 Year 07 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071136