UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059452
Receipt number R000067994
Scientific Title Can implant prostheses improve cognitive function in older adults?
Date of disclosure of the study information 2026/02/01
Last modified on 2025/10/18 14:58:10

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Basic information

Public title

Can implant prostheses improve cognitive function in older adults?

Acronym

Implant prostheses and cognitive function in older adults

Scientific Title

Can implant prostheses improve cognitive function in older adults?

Scientific Title:Acronym

Implant prostheses and cognitive function in older adults

Region

Japan


Condition

Condition

parcial/complete edentulouness

Classification by specialty

Dental medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate whether there is a difference in the effects on cognitive function between wearing implant prostheses and wearing removable dentures.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

MoCA-J

Key secondary outcomes

cognitive functional assessment
energy, nutritional, and food intakes
masticatory function
oral health related quality of life


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Maneuver

Interventions/Control_1

To fabricate and set a fixed implant prosthesis or a removable implant prosthesis (IOD, implant-supported removable partial denture (IARPD)) for the missing teeth area, performing adjustments as needed.

Interventions/Control_2

To fabricate and set a complete denture or a partial denture for the missing teeth area, performing adjustments as needed

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

65 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Aged 65 or older
Individuals who have lost occlusal support
Individuals who plan to restore the edentulous area with fixed implant prostheses, removable implant prostheses, or removable dentures, or for whom such restoration has been decided

Key exclusion criteria

Individuals with poorly controlled systemic diseases
History of BP medication use
History of chemotherapy or radiation therapy to the head and neck
Heavy smokers (10 or more cigarettes per day)
Infectious diseases
Mental disorders
Temporomandibular joint disorders
Other individuals deemed ineligible by the principal investigator or co-investigators

Target sample size

44


Research contact person

Name of lead principal investigator

1st name Yuriko
Middle name
Last name Komagamine

Organization

Institute of Science Tokyo

Division name

Gerodontology and Oral Rehabilitation

Zip code

113-8549

Address

1-5-45, Yurshima, Bunkyo-ku, Tokyo, Japan

TEL

03-5803-4645

Email

y.komagamine.gerd@tmd.ac.jp


Public contact

Name of contact person

1st name Yuriko
Middle name
Last name Komagamine

Organization

Institute of Science Tokyo

Division name

Gerodontology and Oral Rehabilitation

Zip code

113-8549

Address

1-5-45, Yurshima, Bunkyo-ku, Tokyo, Japan

TEL

03-5803-4645

Homepage URL


Email

y.komagamine.gerd@tmd.ac.jp


Sponsor or person

Institute

Institute of Science Tokyo

Institute

Department

Personal name

Yuriko Komagamine


Funding Source

Organization

Japan Society for the Promotion of Science

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Promotion Division, Research Infrastructure Promotion Section Bioethics Group, Institute of Science Tokjyo

Address

1-5-45, Yurshima, Bunkyo-ku, Tokyo, Japan

Tel

03-5803-4645

Email

y.komagamine.gerd@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 02 Month 01 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

2025 Year 02 Month 01 Day

Date of IRB


Anticipated trial start date

2025 Year 03 Month 01 Day

Last follow-up date

2029 Year 03 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

2025 Year 10 Month 18 Day

Last modified on

2025 Year 10 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067994