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Treatment of Initial Caries Lesions on Proximal Surfaces of Primary and Permanent Posterior Teeth

Treatment of Initial Caries Lesions on Proximal Surfaces of Primary and Permanent Posterior Teeth: a Randomized Placebo-controlled Study.

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01477385
Enrollment
183
Registered
2011-11-22
Start date
2012-01-31
Completion date
2018-10-31
Last updated
2016-05-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental Caries, Compliance Behavior

Keywords

dental caries, primary teeth, permanent teeth, silver diamine fluoride

Brief summary

This study aims to evaluate the effectiveness of 30% silver diamine fluoride in the treatment of clinically caries lesions in enamel, with radiographic image restricted to the enamel or the outer third of dentin on the proximal surfaces of primary and permanent posterior teeth. It also aims to compare it to the resin infiltration and to the control of proximal biofilm through the oral hygiene.

Detailed description

The sample will be comprised of 141 patients between 3 to 10 year-old and 504 proximal surfaces of 12-to-17-year-old adolescents, who present at least one proximal surface with initial caries lesion. Patients will be randomly allocated to treatments, according to the technique to be employed: (I) resin infiltration (II) 30% diamine silver fluoride, (III) just daily flossing by the patient. All subjects will receive placebo treatments performed in other groups. The teeth will be evaluated by clinical and radiographic exams at baseline and after 1, 3, 6, 12, 18 and 24 months. In 1, 3 and 18 months will just be evaluated aspects related to the biofilm.

Interventions

PROCEDUREResin Infiltration

After cleaning the proximal surface with caries lesion, it will be performed the local infiltration anesthesia and adaptation of the rubber dam. The adjacent tooth will be protected by plastic or metal strip. Hydrochloric acid 15% will be applied on the lesion, which will be washed and dried. The surface should be dried by applying 95% ethanol and air-way syringe. The resin infiltration (Icon, DMG) will be applied on the lesion. The resin will be polymerized and applied again and polymerized.

It will be cleaned like group I. Soft tissues will be protected with petroleum jelly. The 30% silver diamine fluoride (Cariestop, Biodinamica) will be applied with a disposable microbrush for 3m. Then the surface will be washed for 30s.

In this group, the patient will perform only mechanical removal of biofilm to floss daily.

PROCEDUREResin Infiltration Placebo

In this group, the patient will be held only inserting the rubber dam and applied sterile water as a substitute for acid, ethanol and resin infiltration.

PROCEDURE30% Silver Diammine Fluoride Placebo

Soft tissues will be protected with petroleum jelly. The patient will receive sterile water application with a disposable microbrush for 3m. Then the surface will be washed for 30s.

Sponsors

University of Copenhagen
CollaboratorOTHER
University of Sao Paulo
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
3 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* Primary teeth: distal surface of the first molar, mesial surface of the second molar and distal surface of the second molar (when the first permanent molar is present) with initial caries lesion (ICDAS 1, 2 or 3). * Permanent teeth: distal surface of the first premolar, mesial surface of the second premolar, distal surface of the second premolar, mesial surface of the first molar, distal surface of the first molar and mesial surface of the second molar with initial caries lesion (ICDAS 1, 2 or 3).

Exclusion criteria

* Mesial surface of the first primary molar/premolar by the smaller contact with the distal surface of the canines. It will be also excluded the surfaces that show proximal restorations, sealants, cavities, defects, as well as intact teeth.

Design outcomes

Primary

MeasureTime frame
progression of initial lesion caries12 and 24 months

Secondary

MeasureTime frame
approximal plaque reduction1, 3, 6, 12, 18 and 24 months

Countries

Brazil

Contacts

Primary ContactMariana M Braga, PhD
mmbraga@usp.br55 11 30917835

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026