Silver Diamine Fluoride Pilot Study (SDF)

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

41 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-01-07

Study Completion Date

2022-06-30

Brief Summary

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This pilot trial is randomized, double-blind, and placebo-controlled trial with two parallel arms: an intervention group using silver diamine fluoride (SDF) and a placebo group (control). 60 eligible healthy adults will be enrolled in the study and randomly assigned to one of the two treatment groups. Both groups will receive the traditional preventive measures including cleanings, Fluoride varnish, diet analysis and counseling. Study participants will be followed for one year and caries progression will be radiographically monitored.

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Detailed Description

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This pilot study will compare 1) Silver diamine fluoride (SDF) and fluoride varnish to 2) Placebo and fluoride varnish (conventional prevention) in the management of early approximal carious lesions. Early approximal carious lesions refers to decay between teeth, diagnosed with radiographs, not extending more than 1/3 of the way into dentin. Management of early approximal carious lesions refers to halting lesion progression, or encouraging lesion reversal after an early carious lesion is detected.

SDF provides a novel, low-cost intervention option for managing early carious lesions that could potentially bridge the 'gap' between non-operative and operative options; thus, postponing the first placement of a restoration. SDF has been used in arresting carious lesions for more than 100 years. However, SDF has never been tested in the arrest of approximal caries lesions in permanent teeth.

SDF acts to both prevent and arrest tooth decay in multiple ways: 1) it acts on the body of carious lesions by precipitating silver ion into the lesion, thus blocking diffusion pathways for cariogenic acids; 2) it interacts with dental enamel leading to the formation of fluoroapatite crystals making the tooth surface more acid resistant; and 3) the precipitated silver from SDF acts as a bactericidal agent disturbing the formation of cariogenic biofilm.

Conditions

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Dental Caries

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Silver Diamine Fluoride 38%

Group 1 (SDF 38%) will receive the application of silver diammine fluoride (38% SDF solution) in addition to 5% sodium fluoride varnish to each approximal carious lesion (scores RA1,RA2,RA3) in a posterior tooth (premolar or molar) that is in contact with an adjacent tooth, using super floss, for a duration of 3 minutes under rubber dam isolation.

Group Type ACTIVE_COMPARATOR

Silver Diamine Fluoride 38%

Intervention Type DEVICE

Group 1 (SDF group) subjects will receive the application of silver diamine fluoride (38% SDF solution) in addition to 5% Fluoride varnish to each approximal incipiency, using super floss, for a duration of 3 minutes under rubber dam isolation.

Placebo (Sterile water)

Group 2 Placebo (control) will receive the application of sterile water (placebo) in addition to 5% sodium fluoride varnish to each approximal carious lesion (scores RA1,RA2,RA3) in a posterior tooth (premolar or molar) that is in contact with an adjacent tooth, using super floss, for a duration of 3 minutes under rubber dam isolation.

Group Type PLACEBO_COMPARATOR

Group 2 (Placebo)

Intervention Type DEVICE

Group 2 (Placebo) subjects will receive application of sterile water (placebo) in addition to 5% Fluoride varnish to each approximal incipiency, using super floss, for a duration of 3 minutes under rubber dam isolation.

Interventions

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Silver Diamine Fluoride 38%

Group 1 (SDF group) subjects will receive the application of silver diamine fluoride (38% SDF solution) in addition to 5% Fluoride varnish to each approximal incipiency, using super floss, for a duration of 3 minutes under rubber dam isolation.

Intervention Type DEVICE

Group 2 (Placebo)

Group 2 (Placebo) subjects will receive application of sterile water (placebo) in addition to 5% Fluoride varnish to each approximal incipiency, using super floss, for a duration of 3 minutes under rubber dam isolation.

Intervention Type DEVICE

Other Intervention Names

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38% SDF Sterile Water

Eligibility Criteria

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Inclusion Criteria

* Presence of at least one approximal caries lesion (scores RA1, RA2, RA3 according to the ICCMS radiographic scoring system) in one of the posterior teeth (premolars and molars) presented with full contact with the adjacent tooth.
* All the surfaces eligible for this study will be included.

Exclusion Criteria

* The approximal lesion detected in the radiograph has advanced dentine lesion (RB4, RC5, or RC6)
* or is adjacent to a lesion that is either filled or will receive a filling at the time of enrollment.

Minimum Eligible Age

21 Years

Maximum Eligible Age

64 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes