UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000051326
Receipt number R000058495
Scientific Title A preliminary clinical study to examine the validity of measuring tooth brushing-induced gingival bleeding as a diagnostic method for gingivitis
Date of disclosure of the study information 2023/08/18
Last modified on 2023/07/03 19:40:50

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Basic information

Public title

Validity of measuring tooth brushing-induced gingival bleeding (t-BIGB) as a diagnostic method for gingivitis

Acronym

BIGB study

Scientific Title

A preliminary clinical study to examine the validity of measuring tooth brushing-induced gingival bleeding as a diagnostic method for gingivitis

Scientific Title:Acronym

t-BIGB study

Region

Japan


Condition

Condition

gingivitis, periodontal disease

Classification by specialty

Hepato-biliary-pancreatic medicine Hepato-biliary-pancreatic surgery Oral surgery
Dental medicine Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine the validity of measuring tooth brushing-induced gingival bleeding as a diagnostic method for gingivitis.

Basic objectives2

Bio-equivalence

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

To assess the correlation between levels of tooth brushing-induced gingival bleeding (BIGB) and that of gingival bleeding on probing (BOP).

Key secondary outcomes

Secondary endpoints include significant difference in BIGB level when gingivitis is diagnosed based on BOP 10% or 30%, cutoff value, respectively. The sensitivity and specificity by ROC analysis, correlation between BIGB positive tooth % and BOP positive site %, etc. will be also investigated.


Base

Study type

Interventional


Study design

Basic design

Cross-over

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

Diagnosis

Type of intervention

Maneuver

Interventions/Control_1

A dentist or dental hygienist thoroughly brushes all current teeth. After the brushing, the subject rinses his/her mouth lightly and leaves it for 1 minute. Then, the subject rinses his/her mouth with 3 mL of distilled water for 10 seconds, and use the discharged liquid as the sample.

Interventions/Control_2

Following intervention 1 above, a usual gingivitis examination is performed. Periodontal probing using a probe with a blunt tip (periodontal probe) with a weak pressure of 20 g or less is performed on all current teeth by the 1-tooth 6-point method. Presence of induced bleeding (Bleeding on Probing: BOP) and probing depth for each measurement site will be recorded.

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

15 years-old <=

Age-upper limit

75 years-old >

Gender

Male and Female

Key inclusion criteria

Men and women who have 20 or more teeth.

Key exclusion criteria

1. Subjects with dental diseases such as caries, periodontal disease, or oral mucosal diseases that require immediate treatment.
2. When consent to participate cannot be obtained from the research subject (and legally acceptable person).
3. In addition, when the research director or researcher determines that it is appropriate to stop the research.

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Hiro
Middle name
Last name Ito

Organization

Tokushima University Graduate School of Biomedical Sciences

Division name

Department of Preventive Dentistry

Zip code

770-8504

Address

3-18-15 Kuramoto-cho, Tokushima

TEL

088-633-7336

Email

itohiro@tokushima-u.ac.jp


Public contact

Name of contact person

1st name Hiro-O
Middle name
Last name Ito

Organization

Tokushima University Graduate School of Biomedical Sciences

Division name

Department of Preventive Dentistry

Zip code

770-8504

Address

3-18-15 Kuramoto-cho, Tokushima

TEL

088-633-7336

Homepage URL


Email

itohiro@tokushima-u.ac.jp


Sponsor or person

Institute

Tokushima University

Institute

Department

Personal name



Funding Source

Organization

Tokushima University

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

The Ethics Committee of Tokushima University Hospital

Address

2-50-1 Kuramotocho, Tokushima

Tel

088-633-7958

Email

brinshoshienk@tokushima-u.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

2023 Year 08 Month 18 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

2023 Year 08 Month 18 Day

Date of IRB


Anticipated trial start date

2023 Year 08 Month 28 Day

Last follow-up date

2025 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

2023 Year 06 Month 12 Day

Last modified on

2023 Year 07 Month 03 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000058495


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name