Managing Dentine Hypersensitivity With Silver Diamine Fluoride on Older Adults

NCT ID: NCT05392868

Last Updated: 2023-07-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

166 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-02-01

Study Completion Date

2024-02-28

Brief Summary

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Background: Dentine hypersensitivity is a common oral complaint from older adults. It induces pain, affects oral hygiene practice, limits food choices and negatively affects the quality of life. Silver diamine fluoride (SDF) is a desensitizing agent but well-designed clinical trials are lacking. The objective of this study is to evaluate the effectiveness of SDF in reducing dentine hypersensitivity in older Chinese adults.

Methods: This is a double-blinded randomised clinical trial recruiting 166 healthy older adults aged 65 or over after having written consent. A trained calibrated examiner will conduct clinical examination and assess dentine hypersensitive using a blast of compressed air delivered from 3-in-1 syringe. Older adults with a tooth with a self-perceived sensitivity score (SS) of 8 or above will be recruited. They will then be block randomised to receive either 38% SDF solution or 5% potassium nitrate every 4 weeks on the exposed root surface of the most hypersensitive tooth. The visible plaque index, bleeding on probing and probing depth (mm) will be recorded on the most hypersensitive tooth. The same examiner will perform clinical examination and assess the dentine hypersensitivity using the same tools and methods at 4-week and 8-week follow-ups. The examiner and older adults will be blinded to treatment allocation. The primary outcome is the percentage of change in SS before and after intervention at 8 weeks. The secondary outcome will be the percentage of change in VPI before and after intervention at 8 weeks.

Clinical significance: It will provide evidence to manage dentine hypersensitivity in older adults in clinical care.

Detailed Description

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Conditions

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Dentine Hypersensitivity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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SDF

38% silver diamine fluoride solution

Group Type EXPERIMENTAL

SDF

Intervention Type DEVICE

38% silver diamine fluoride solution

KNO3

5% potassium nitrate solution

Group Type ACTIVE_COMPARATOR

KNO3

Intervention Type DEVICE

5% potassium nitrate solution

Interventions

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SDF

38% silver diamine fluoride solution

Intervention Type DEVICE

KNO3

5% potassium nitrate solution

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* generally healthy;
* no known or suspected allergy to the study ingredients or materials
* have all active dental diseases under control but reported hypersensitivity

Exclusion Criteria

* using any desensitizing agent within one month
* have major systemic diseases such as cancer
* receive medications that may affect pain perception within one month
* have dentine hypersensitivity due to other dental conditions such as caries
* are not able to give written consent
Minimum Eligible Age

65 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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The University of Hong Kong

OTHER

Sponsor Role lead

Responsible Party

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Chun Hung Chu

Clinical Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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The University of Hong Kong

Hong Kong, , China

Site Status RECRUITING

Countries

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China

Central Contacts

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Chun Hung Chu, PhD

Role: CONTACT

(+852)28590287

Facility Contacts

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Chun Hung Chu

Role: primary

00852-28590287

References

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Chan AKY, Tsang YC, Jiang CM, Leung KCM, Lo ECM, Chu CH. Treating hypersensitivity in older adults with silver diamine fluoride: A randomised clinical trial. J Dent. 2023 Sep;136:104616. doi: 10.1016/j.jdent.2023.104616. Epub 2023 Jul 14.

Reference Type DERIVED
PMID: 37454789 (View on PubMed)

Chan AKY, Tamrakar M, Jiang CM, Tsang YC, Leung KCM, Chu CH. Effectiveness of 38% Silver Diamine Fluoride in Reducing Dentine Hypersensitivity on Exposed Root Surface in Older Chinese Adults: Study Protocol for a Randomised Double-Blind Study. Dent J (Basel). 2022 Oct 19;10(10):194. doi: 10.3390/dj10100194.

Reference Type DERIVED
PMID: 36286004 (View on PubMed)

Other Identifiers

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HKU2022

Identifier Type: -

Identifier Source: org_study_id

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