Trial Outcomes & Findings for Effectiveness of Silver Diamine Fluoride (SDF) in Arresting Cavitated Caries Lesions (NCT NCT03649659)

NCT ID: NCT03649659

Last Updated: 2025-01-07

Results Overview

Arrested trial lesions will be assessed by determining if the lesion is hard or soft by pressing on the lesion using a standard probe as assessed by calibrated examiners.

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

830 participants

Primary outcome timeframe

6 months

Results posted on

2025-01-07

Participant Flow

Participant milestones

Participant milestones
Measure
Silver Diamine Fluoride (SDF)
SDF will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Silver Diamine Fluoride: SDF will be applied twice during the study
Placebo
The placebo will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Placebo: This is being compared to the SDF and will also be applied twice
Overall Study
STARTED
414
416
Overall Study
COMPLETED
278
265
Overall Study
NOT COMPLETED
136
151

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Effectiveness of Silver Diamine Fluoride (SDF) in Arresting Cavitated Caries Lesions

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Silver Diamine Fluoride (SDF)
n=414 Participants
SDF will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Silver Diamine Fluoride: SDF will be applied twice during the study
Placebo
n=416 Participants
The placebo will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Placebo: This is being compared to the SDF and will also be applied twice
Total
n=830 Participants
Total of all reporting groups
Age, Customized
Child Age 1 Years
15 Participants
n=5 Participants
19 Participants
n=7 Participants
34 Participants
n=5 Participants
Age, Customized
Child Age 2 Years
56 Participants
n=5 Participants
56 Participants
n=7 Participants
112 Participants
n=5 Participants
Age, Customized
Child Age 3 Years
124 Participants
n=5 Participants
107 Participants
n=7 Participants
231 Participants
n=5 Participants
Age, Customized
Child Age 4 Years
155 Participants
n=5 Participants
170 Participants
n=7 Participants
325 Participants
n=5 Participants
Age, Customized
Child Age 5 Years
64 Participants
n=5 Participants
64 Participants
n=7 Participants
128 Participants
n=5 Participants
Sex: Female, Male
Female
228 Participants
n=5 Participants
200 Participants
n=7 Participants
428 Participants
n=5 Participants
Sex: Female, Male
Male
186 Participants
n=5 Participants
216 Participants
n=7 Participants
402 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
182 Participants
n=5 Participants
183 Participants
n=7 Participants
365 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
228 Participants
n=5 Participants
219 Participants
n=7 Participants
447 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
4 Participants
n=5 Participants
14 Participants
n=7 Participants
18 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
n=5 Participants
3 Participants
n=7 Participants
6 Participants
n=5 Participants
Race (NIH/OMB)
Asian
26 Participants
n=5 Participants
24 Participants
n=7 Participants
50 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
85 Participants
n=5 Participants
86 Participants
n=7 Participants
171 Participants
n=5 Participants
Race (NIH/OMB)
White
138 Participants
n=5 Participants
132 Participants
n=7 Participants
270 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
24 Participants
n=5 Participants
37 Participants
n=7 Participants
61 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
138 Participants
n=5 Participants
134 Participants
n=7 Participants
272 Participants
n=5 Participants
Region of Enrollment
United States
414 participants
n=5 Participants
416 participants
n=7 Participants
830 participants
n=5 Participants

PRIMARY outcome

Timeframe: 6 months

Arrested trial lesions will be assessed by determining if the lesion is hard or soft by pressing on the lesion using a standard probe as assessed by calibrated examiners.

Outcome measures

Outcome measures
Measure
Silver Diamine Fluoride (SDF)
n=414 Participants
SDF will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Silver Diamine Fluoride: SDF will be applied twice during the study
Placebo
n=416 Participants
The placebo will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Placebo: This is being compared to the SDF and will also be applied twice
The Proportion of Arrested Trial Lesions Per Child in Each Treatment Arm After One Treatment With SDF or Placebo
54 percentage of lesions arrested
Interval 43.1 to 64.4
22.5 percentage of lesions arrested
Interval 15.3 to 31.8

SECONDARY outcome

Timeframe: 8 months

Arrested trial lesions will be assessed by determining if the lesion is hard or soft after two SDF applications by pressing on the lesion using a standard probe as assessed by calibrated examiners.

Outcome measures

Outcome measures
Measure
Silver Diamine Fluoride (SDF)
n=414 Participants
SDF will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Silver Diamine Fluoride: SDF will be applied twice during the study
Placebo
n=416 Participants
The placebo will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Placebo: This is being compared to the SDF and will also be applied twice
The Proportion of Arrested Trial Lesions Per Child in Each Treatment Arm After Two Treatments With SDF or Placebo
50.2 percentage of lesions arrested
Interval 39.5 to 60.9
17.4 percentage of lesions arrested
Interval 11.4 to 25.7

SECONDARY outcome

Timeframe: 3 months

Proportion of arrested trial lesions will be assessed by determining if the lesion is hard or soft by pressing on the lesion using a standard probe as assessed by calibrated examiners. The effect of a single application will be assessed at 3-month follow-up post initial treatment.

Outcome measures

Outcome measures
Measure
Silver Diamine Fluoride (SDF)
n=414 Participants
SDF will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Silver Diamine Fluoride: SDF will be applied twice during the study
Placebo
n=416 Participants
The placebo will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Placebo: This is being compared to the SDF and will also be applied twice
Proportion of Arrested Trial Lesions Per Child in Each Treatment Arm After One Treatment With SDF or Placebo
57.5 percentage of lesion arrest
Interval 46.5 to 67.8
18.8 percentage of lesion arrest
Interval 12.4 to 27.5

SECONDARY outcome

Timeframe: Baseline, 24-48 hour call, 1.5 month, 3 month, 4.5 month, 6 month, 24-48 hours after 6 month, 7 month, 8 month

The presence of pain associated with a trial lesion was screened at baseline a score of 1 or higher using the Dental Discomfort Questionnaire (DDQ). The DDQ is a validated tool assessing pain in children 5 and younger, as reported by parents/legal guardians, based on observation of toothache pain-related behaviors by the child. It consists of two parts: a question of the occurrence of toothache and when (if no pain DDQ score of 0,best), and 8 validated questions about behaviors associated with toothache or discomfort due to caries on a three-point scale: 0 'never', 1 'sometimes', and 2 'often'. Total score is the sum of the 8 questions in part two, ranging from 0 (no pain) to 16 (worst score). A DDQ score of 1 or higher may not be caused by pain in a trial tooth, so children with a DDQ score of 1 or higher were examined during a clinical visit to determine if the trial teeth had pain. Pain associated with a trial tooth at any time after baseline treatment counted as trial lesion pain.

Outcome measures

Outcome measures
Measure
Silver Diamine Fluoride (SDF)
n=414 Participants
SDF will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Silver Diamine Fluoride: SDF will be applied twice during the study
Placebo
n=416 Participants
The placebo will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Placebo: This is being compared to the SDF and will also be applied twice
Proportion of Trial Lesions With Pain Prior to or at the 8-month Visit
2.7 percentage of trial lesions with pain
Interval 0.8 to 8.9
2.8 percentage of trial lesions with pain
Interval 0.8 to 9.6

Adverse Events

Silver Diamine Fluoride (SDF)

Serious events: 3 serious events
Other events: 103 other events
Deaths: 0 deaths

Placebo

Serious events: 1 serious events
Other events: 89 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Silver Diamine Fluoride (SDF)
n=414 participants at risk
SDF will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Silver Diamine Fluoride: SDF will be applied twice during the study
Placebo
n=416 participants at risk
The placebo will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Placebo: This is being compared to the SDF and will also be applied twice
Gastrointestinal disorders
Hospitalization for Dental Abscess
0.24%
1/414 • 8 months
0.00%
0/416 • 8 months
Surgical and medical procedures
Hospitalization for Appendix Removal
0.24%
1/414 • 8 months
0.00%
0/416 • 8 months
General disorders
Hospitalization for Febrile Seizure
0.24%
1/414 • 8 months
0.00%
0/416 • 8 months
Respiratory, thoracic and mediastinal disorders
Hospitalization due to Asthma
0.00%
0/414 • 8 months
0.24%
1/416 • 8 months

Other adverse events

Other adverse events
Measure
Silver Diamine Fluoride (SDF)
n=414 participants at risk
SDF will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Silver Diamine Fluoride: SDF will be applied twice during the study
Placebo
n=416 participants at risk
The placebo will be applied to the affected teeth twice during the study. Once at screening/baseline and again at the 6-month visit. Placebo: This is being compared to the SDF and will also be applied twice
Gastrointestinal disorders
Abscess
8.5%
35/414 • 8 months
8.2%
34/416 • 8 months
Immune system disorders
Allergic Reaction
0.24%
1/414 • 8 months
0.00%
0/416 • 8 months
Gastrointestinal disorders
Constipation
0.24%
1/414 • 8 months
0.24%
1/416 • 8 months
Respiratory, thoracic and mediastinal disorders
Cough
1.4%
6/414 • 8 months
1.2%
5/416 • 8 months
Injury, poisoning and procedural complications
Dental Trauma
0.48%
2/414 • 8 months
0.48%
2/416 • 8 months
Surgical and medical procedures
Dental Treatment
5.3%
22/414 • 8 months
4.3%
18/416 • 8 months
Gastrointestinal disorders
Diarrhea
0.72%
3/414 • 8 months
0.00%
0/416 • 8 months
Infections and infestations
Ear Infection
0.72%
3/414 • 8 months
1.2%
5/416 • 8 months
Injury, poisoning and procedural complications
Extraoral Staining
1.2%
5/414 • 8 months
0.00%
0/416 • 8 months
General disorders
Fever
2.2%
9/414 • 8 months
3.8%
16/416 • 8 months
Gastrointestinal disorders
Gastrointestinal Pain
0.97%
4/414 • 8 months
0.96%
4/416 • 8 months
Injury, poisoning and procedural complications
Intraoral Staining
0.48%
2/414 • 8 months
0.24%
1/416 • 8 months
Gastrointestinal disorders
Nausea
0.24%
1/414 • 8 months
0.24%
1/416 • 8 months
Gastrointestinal disorders
Oral Erythema
0.48%
2/414 • 8 months
0.24%
1/416 • 8 months
Gastrointestinal disorders
Oral Pain
0.24%
1/414 • 8 months
0.72%
3/416 • 8 months
Gastrointestinal disorders
Oral Ulceration
0.24%
1/414 • 8 months
0.48%
2/416 • 8 months
General disorders
Other
3.6%
15/414 • 8 months
1.4%
6/416 • 8 months
Surgical and medical procedures
Other Surgical Procedure
0.24%
1/414 • 8 months
0.48%
2/416 • 8 months
Gastrointestinal disorders
Pulpal Exposure
1.4%
6/414 • 8 months
1.9%
8/416 • 8 months
Infections and infestations
Respiratory Infection
1.7%
7/414 • 8 months
1.9%
8/416 • 8 months
Skin and subcutaneous tissue disorders
Skin and Tissue Disorders
1.4%
6/414 • 8 months
0.00%
0/416 • 8 months
Respiratory, thoracic and mediastinal disorders
Sore Throat
0.48%
2/414 • 8 months
0.24%
1/416 • 8 months
Gastrointestinal disorders
Toothache
8.0%
33/414 • 8 months
6.2%
26/416 • 8 months
Gastrointestinal disorders
Vomiting
1.2%
5/414 • 8 months
1.9%
8/416 • 8 months

Additional Information

Dr. Margherita Fontana

University of Michigan

Phone: 734-763-3988

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place