UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062778
Receipt number R000071235
Scientific Title Study on Photographic Detection Technology for Periodontal Disease
Date of disclosure of the study information 2026/09/30
Last modified on 2026/07/16 09:38:27

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Basic information

Public title

Study on Photographic Detection Technology for Periodontal Disease

Acronym

Study on Photographic Detection Technology for Periodontal Disease

Scientific Title

Study on Photographic Detection Technology for Periodontal Disease

Scientific Title:Acronym

Photograph-based Periodontal Disease Study

Region

Japan


Condition

Condition

Periodongal disease

Classification by specialty

Dental medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to evaluate the accuracy of an AI system for detecting periodontal disease by comparing it with the Community Periodontal Index (CPI). The results will be used to improve the machine learning model and enhance its detection accuracy.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Sensitivity and Specificity of the CPI

Key secondary outcomes

Sensitivity and Specificity of AI


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Non-randomized

Randomization unit


Blinding

Single blind -investigator(s) and assessor(s) are blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Maneuver

Interventions/Control_1

Comprehensive Periodontal Examination

Interventions/Control_2

Community Periodontal Index (CPI)

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


Not applicable

Gender

Male and Female

Key inclusion criteria

1. Male or female participants aged 18 years or older at the time of providing informed consent.
2. Participants who voluntarily provide written informed consent to participate in this study.
3. Participants with at least one maxillary central incisor (right or left) and at least one mandibular central incisor (right or left).
4. Participants with available panoramic radiographs or a full-mouth periapical radiographic series (10 periapical radiographs).
5. Participants who are able to communicate sufficiently to participate in the study procedures.

Key exclusion criteria

1. Participants with oral mucosal diseases.
2. Participants who are unable to wear an angle wider.
3. Participants who are considered unsuitable for participation in the study by the Principal Investigator or a Sub-investigator.

Target sample size

135


Research contact person

Name of lead principal investigator

1st name nobuhiro
Middle name
Last name Yoda

Organization

Tohoku University Graduate School of Dentistry

Division name

Division of Advanced Prosthetic Dentistry

Zip code

9808575

Address

4-1 Seiryo-machi, Aoba-ku, Sendai

TEL

0227178369

Email

nobuhiro.yoda.e2@tohoku.ac.jp


Public contact

Name of contact person

1st name Hiroki
Middle name
Last name Hihara

Organization

Tohoku University Graduate School of Dentistry

Division name

Division of Advanced Prosthetic Dentistry

Zip code

9808575

Address

4-1 Seiryo-machi, Aoba-ku, Sendai

TEL

0227178369

Homepage URL


Email

hiroki.hihara.a4@tohoku.ac.jp


Sponsor or person

Institute

Tohoku University

Institute

Department

Personal name

Nobuhiro Yoda


Funding Source

Organization

Others

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee of the Graduate School of Dentistry, Tohoku University

Address

4-1 Seiryo-machi, Aoba-ku, Sendai

Tel

0227178244

Email

den-syom@grp.tohoku.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 09 Month 30 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 14 Day

Date of IRB


Anticipated trial start date

2026 Year 09 Month 30 Day

Last follow-up date

2027 Year 06 Month 30 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 09 Month 02 Day

Last modified on

2026 Year 07 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071235