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White Spot Lesion of ToothSPRG-WSLNCT07839780

S-PRG Filler for Preventing White Spot Lesions During Orthodontic Treatment

A study testing S-PRG Barrier Coat, S-PRG Barrier Coat + 5% Sodium Fluoride Varnish and 5% sodium fluoride varnish in people with White Spot Lesion of Tooth and Orthodontic Treatment, run by National University of Malaysia at 1 site in Malaysia.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

White spot lesions are early areas of enamel demineralization that may develop during orthodontic treatment with fixed braces. This study aims to evaluate the effectiveness of S-PRG Barrier Coat in preventing white spot lesions during orthodontic treatment. Read more about this study

Who is it for?
Any ageHealthy volunteers can take part
What is being tested?
S-PRG Barrier Coat, S-PRG Barrier Coat + 5% Sodium Fluoride Varnish and 5% sodium fluoride varnish
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
144 participants
Where
1 siteMalaysia
Study dates
Oct 2026to Jan 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Patients scheduled to undergo fixed orthodontic treatment at the Faculty of Dentistry, Universiti Kebangsaan Malaysia (UKM), who provide informed consent. For participants below 18 years of age, parental or guardian consent will be obtained.
  • Patients receiving orthodontic brackets on at least the upper incisors and canines, with an anticipated treatment duration of at least 12 months.
  • Patients with any degree of malocclusion.
  • Patients without pre-existing white spot lesions on the teeth being assessed.
  • Medically fit and healthy patients.
  • Non-smokers.
  • Patients who can understand and communicate in basic English or Bahasa Malaysia

Who cannot join

  • Previous history of fixed orthodontic treatment.
  • Presence of dental anomalies or developmental defects of enamel (DDE) on the labial surfaces of the teeth, including pre-existing fluorosis or enamel hypoplasia.
  • Presence of direct or indirect restorations on the labial surfaces of the teeth being assessed.
  • History of long-term antibiotic use.
  • Presence of untreated cavitated carious lesions, particularly involving the upper or lower incisors and canines.
  • Plaque level greater than 30%.
  • Known allergy to any component of the intervention materials, including sodium fluoride or glass ionomer.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

DAVEINTHIRAN THANABALAN, Bachelor of Dental Surgery contact

+60173807427

p166299@siswa.ukm.edu.my

NOOR SAM AHMAD, MOrth (UKM) contact

+60193353958

Malaysia1 site
  • Faculty of Dentistry, Universiti Kebangsaan Malaysia (UKM)

    Kuala Lumpur, 50300

Other trials in Malaysia

About this study

Official title: Effect of S-PRG Filler in Prevention White Spot Lesions During Orthodontic Treatment: A Randomized Control Trial

White spot lesions are early areas of enamel demineralization that may develop during orthodontic treatment with fixed braces. This study aims to evaluate the effectiveness of S-PRG Barrier Coat in preventing white spot lesions during orthodontic treatment. The study will compare S-PRG Barrier Coat with 5% sodium fluoride varnish, a combination of S-PRG Barrier Coat and 5% sodium fluoride varnish, and a placebo. A total of 144 participants undergoing orthodontic treatment will be randomly assigned to one of four treatment groups. The occurrence and severity of white spot lesions will be assessed using clinical examinations, including the ICDAS-II and Gorelick index, together with DIAGNOdent readings where applicable. The study findings may help determine whether S-PRG Barrier Coat provides an effective preventive approach against orthodontic white spot lesions.

Read the detailed description

White spot lesions (WSLs) are early manifestations of enamel demineralization that may occur during orthodontic treatment with fixed appliances. Brackets and archwires can increase plaque accumulation and make oral hygiene more difficult, potentially increasing the risk of enamel demineralization. Although fluoride-based preventive measures are commonly used, additional preventive approaches may be beneficial.

S-PRG (Surface Pre-Reacted Glass-ionomer) bioactive fillers have the potential to release various ions, including fluoride and strontium, which may contribute to the inhibition of demineralization and promotion of remineralization. S-PRG Barrier Coat is therefore being investigated as a potential preventive material for orthodontic WSLs.

Study Objective

The objective of this study is to evaluate the effect of S-PRG Barrier Coat in preventing white spot lesions during orthodontic treatment. Its preventive effect will be compared with 5% sodium fluoride varnish, a combination of S-PRG Barrier Coat and 5% sodium fluoride varnish, and a placebo.

Study Design

This is a single-center, four-arm, parallel-group, randomized controlled clinical trial involving patients undergoing orthodontic treatment with fixed appliances. A total of 144 participants will be recruited and randomly allocated in a 1:1:1:1 ratio to four treatment groups, with 36 participants planned for each group.

Intervention Groups

S-PRG Barrier Coat. 5% sodium fluoride varnish. Combined S-PRG Barrier Coat and 5% sodium fluoride varnish. Placebo.

Study Procedures and Assessments

Eligible participants will be recruited from the orthodontic clinic following assessment against the study inclusion and exclusion criteria. Written informed consent will be obtained before participation. Baseline assessments will be conducted according to the study protocol, followed by the application of the assigned intervention.

Participants will be followed during orthodontic treatment to assess the occurrence and severity of WSLs. Clinical assessments will include the International Caries Detection and Assessment System (ICDAS-II) and the Gorelick index. DIAGNOdent readings may also be used as a diagnostic assessment of enamel demineralization, according to the approved study protocol. Clinical and diagnostic findings will be recorded and compared among the treatment groups.

Randomization and Blinding

Participants will be randomly allocated to one of the four treatment groups. The study is designed as a double-blind randomized controlled trial. The specific individuals blinded to treatment allocation will follow the approved study protocol.

Expected Contribution

This study may provide evidence on whether S-PRG Barrier Coat, alone or in combination with fluoride varnish, offers a preventive benefit against orthodontic WSLs compared with fluoride varnish alone and placebo. The findings may contribute to the development of preventive strategies for enamel demineralization during orthodontic treatment.

Being tested
S-PRG Barrier Coat, S-PRG Barrier Coat + 5% Sodium Fluoride Varnish, 5% sodium fluoride varnish, Placebo - Normal Saline
Keywords
White spot lesions, Orthodontic treatment, Enamel demineralization, S-PRG Barrier Coat, Surface Pre-Reacted Glass-ionomer, Remineralization, Fluoride varnish

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • S-PRG Barrier CoatOther

    S-PRG Barrier Coat is a surface pre-reacted glass-ionomer (S-PRG) bioactive coating applied to tooth surfaces around orthodontic brackets according to the study protocol. It is intended to reduce enamel demineralization and prevent the development of white spot lesions during fixed orthodontic treatment.

  • S-PRG Barrier Coat + 5% Sodium Fluoride VarnishCombination product

    A combined preventive treatment consisting of S-PRG Barrier Coat and 5% sodium fluoride varnish applied according to the study protocol to reduce enamel demineralization and prevent the development of white spot lesions during fixed orthodontic treatment.

  • 5% sodium fluoride varnishOther

    5% sodium fluoride varnish applied to the tooth surfaces according to the study protocol as an active comparator for prevention of enamel demineralization and development of white spot lesions during fixed orthodontic treatment.

  • Placebo - Normal SalineOther

    Normal saline used as the placebo comparator and applied according to the study protocol to the tooth surfaces during fixed orthodontic treatment. The placebo is intended to provide a comparable application procedure without the active preventive components of the study interventions.

Study groups in NCT07839780
Study groupRoleWhat they receive
5% Sodium Fluoride VarnishActive comparatorParticipants receive 5% sodium fluoride varnish as the active comparator during orthodontic treatment with fixed appliances.
Receives: Other: 5% sodium fluoride varnish
S-PRG + 5% Sodium Fluoride VarnishExperimentalParticipants receive the combined S-PRG Barrier Coat and 5% sodium fluoride varnish intervention during orthodontic treatment with fixed appliances.
Receives: Combination Product: S-PRG Barrier Coat + 5% Sodium Fluoride Varnish
Placebo-Normal SalinePlacebo comparatorParticipants receive a placebo (normal saline) during orthodontic treatment with fixed appliances.
Receives: Other: Placebo - Normal Saline
S-PRG Barrier CoatExperimentalParticipants receive S-PRG Barrier Coat as the assigned preventive intervention during orthodontic treatment
Receives: Other: S-PRG Barrier Coat

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Occurrence of White Spot Lesions During Orthodontic Treatment

    The occurrence of white spot lesions will be assessed clinically using the International Caries Detection and Assessment System (ICDAS-II) and the Gorelick index. The presence or absence of white spot lesions will be compared among the four treatment groups.

    Measured: 12 months after initiation of orthodontic treatment

Secondary outcomes (1)
  1. Comparative Effectiveness of S-PRG Filler and 5% Sodium Fluoride Varnish in Preventing White Spot Lesions Assessed by ICDAS-II

    To compare the effectiveness of S-PRG filler and 5% sodium fluoride varnish in preventing the occurrence of white spot lesions in patients undergoing fixed orthodontic treatment. White spot lesion occurrence will be assessed using the ICDAS-II scoring system.

    Measured: 12 months after initiation of fixed orthodontic treatment.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Sep 2026
  2. Study startOct 2026 (estimated)
  3. Primary completionDec 2027 (estimated)
  4. Study completionJan 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
144 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07839780
Sponsor's protocol ID
JEP-2025-876.
Acronym
SPRG-WSL
Status last verified
Sep 2026
First submitted
17 Sep 2026
Last updated
24 Sep 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data will not be shared with other researchers because the study involves confidential participant information.

Publications

  • Al Tuma, R. R. & Yassir, Y. A. 2023. Effect of calcium fluoride nanoparticles in prevention of demineralization during orthodontic fixed appliance treatment: a randomized clinical trial. Eur J Orthod 45(2): 122-132. Altenburger, M. J., Schirrmeister, J. F., Wrbas, K. T., Klasser, M. & Hellwig, E. 2008. Fluoride uptake and remineralisation of enamel lesions after weekly application of differently concentrated fluoride gels. Caries Res 42(4): 312-318. Amaechi, B. T., Kasundra, H., Joshi, D., Abdollahi, A., Azees, P. a. A. & Okoye, L. O. 2018. Effectiveness of S-PRG Filler-Containing Toothpaste in Inhibiting Demineralization of Human Tooth Surface. Open Dentistry Journal 12(811-819. Anderson, A. M., Kao, E., Gladwin, M., Benli, O. & Ngan, P. 2002. The effects of argon laser irradiation on enamel decalcification: An in vivo study. Am J Orthod Dentofacial Orthop 122(3): 251-259. Benham, A. W., Campbell, P. M. & Buschang, P. H. 2009. Effectiveness of pit and fissure sealants in reducing white spot lesions during orthodontic treatment. A pilot study. Angle Orthod 79(2): 338-345. Benjasuwantep, P., Rirattanapong, P. & Vongsavan, K. 2017.. Southeast Asian Journal of Tropical Medicine and Public Health 48(5): 1127-1132. Bishara, S. E. & Ostby, A. W. 2008. White Spot Lesions: Formation, Prevention, and Treatment. Seminars in Orthodontics 14(3): 174-182. Brown, M. D., Campbell, P. M., Schneiderman, E. D. & Buschang, P. H. 2016. A practice-based evaluation of the prevalence and predisposing etiology of white spot lesions. Angle Orthod 86(2): 181-186. Buchalla, W., Attin, T., Schulte-Mönting, J. & Hellwig, E. 2002. Fluoride uptake, retention and remineralization efficacy of a highly concentrated fluoride solution on enamel lesions . Journal of Dental Research 81(5): 329-333. Buren, J. L., Staley, R. N., Wefel, J. & Qian, F. 2008. Inhibition of enamel demineralization by an enamel sealant, Pro Seal: an in-vitro study. Am J Orthod Dentofacial Orthop 133(4 Suppl): S88-94. Chapman,

Questions about this trial

What is this clinical trial studying?

A study testing S-PRG Barrier Coat, S-PRG Barrier Coat + 5% Sodium Fluoride Varnish and 5% sodium fluoride varnish in people with White Spot Lesion of Tooth and Orthodontic Treatment, run by National University of Malaysia at 1 site in Malaysia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 24 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Malaysia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact DAVEINTHIRAN THANABALAN, Bachelor of Dental Surgery (+60173807427, p166299@siswa.ukm.edu.my), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Occurrence of White Spot Lesions During Orthodontic Treatment (time frame: 12 months after initiation of orthodontic treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07839780, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Sep 2026.

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