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SDF Application in Oral Cancer Patients to Prevent Dental Caries

Silver Diamine Fluoride: Novel Addition to the Prophylactic Bundle for Dental Management of Radiation-Induced Dental Caries in Oral and Pharyngeal Cancer Patients

Status
Completed
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05403125
Enrollment
56
Registered
2022-06-03
Start date
2022-05-20
Completion date
2025-03-18
Last updated
2025-09-17

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

Conditions

Dental Caries

Keywords

Oral and Pharyngeal Cancer, Xerostomia, Silver diamine fluoride, Sodium fluoride gel 5000 PPM

Brief summary

The Texas A & M College of Dentistry, with partner Texas Oncology-Baylor Charles A. Sammons Cancer-Center Radiation-Oncology, proposes to conduct a preliminary clinical study (NIH Stage 0) to pilot test a randomized clinical trial of the efficacy of professionally applied 38% silver diamine fluoride to prevent tooth decay in 60 patients who are being treated with radiation for life threatening head and neck cancer.

Detailed description

Head and neck cancer has increased in Texas over the last two decades. Radiation-induced tooth decay is a devastating yet potentially preventable side effect of the cancer treatment. Silver diamine fluoride, already the standard of care in children, is inexpensive, easy to apply, and safe. The objective of the research is to conduct a single site pilot RCT (NIH Stage 0) to determine feasibility and preliminarily assess the efficacy of 38% silver diamine fluoride and 5000 PPM fluoride gel for prevention of radiation-induced dental caries over 6 months. Eligible participants will be up to 60 head and neck cancer patients who are scheduled for radiotherapy. The proposed intervention will be applied within 1 m before and at 1- and 3-m post radiation. The primary outcome is dental caries surfaces at 6 months post-radiotherapy (DMFS).Secondary outcomes are The Gingival Index, Gingival Bleeding Index, MDASI-HN, and Oral Health Quality of Life score will be secondary outcomes.

Interventions

DEVICEsilver diamine fluoride, 38%

Topical application to all surfaces of the teeth

DEVICESodium fluoride gel, 5000 PPM

Gel applied after application of silver diamine fluoride and dispensed for home use

Sponsors

University of Washington
CollaboratorOTHER
Texas A & M University Baylor College Of Dentistry
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Test and placebo drugs will be identical in appearance and labeled by the manufacturer as A and B. The biostatistician will generate an assignment list. Individual packets will be prepared, and the clinician will open the packet to determine which study drug to apply. The packets and the drug containers will be color coded to minimize error. In each case a second staff member will verify on site that the participant received the correct coded treatment. Blinding: Participants and the examiners will be blind to treatment.

Intervention model description

Randomized Controlled Trial, Intention to Treat

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of Head and Neck cancer

Exclusion criteria

* Prognosis less than 1 year * Radiation field of treatment does not involve jaws

Design outcomes

Primary

MeasureTime frameDescription
Dental Caries (DMFS)6 monthsDental Caries Surfaces determined by intraoral inspection

Secondary

MeasureTime frameDescription
Gingival Index6 monthsSilness and Loe Gingival Index for assessment of gingival condition (0 to 3) determined clinically
Bleeding Index6 monthsBleeding at 6 sites of each tooth determined clinically
Oral Health Quality of Life6 monthsQuestionnaire
MD Anderson Symptom Inventory-Head and Neck6 monthsQuestionnaire

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 18, 2026