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Remineralisation of White Spot Lesions by Elmex® gelée in Post-orthodontic Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01329731
Recruitment Status : Completed
First Posted : April 6, 2011
Last Update Posted : December 11, 2013
PD Dr. Christian Heumann
Information provided by (Responsible Party):
Gaba International AG

Brief Summary:
The aim of this study is to monitor the effect of intraoral topical high fluoride application on the development of white spot lesions (WSL) after orthodontic treatment with multibracket appliances and to compare it to a placebo.

Condition or disease Intervention/treatment Phase
Tooth; Lesion, White Spot Lesions Drug: elmex® gelée Drug: negative control (placebo) Phase 4

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 48 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: White Spot Lesion Development in Post-orthodontic Patients Following Weekly Application of a 1.25% Fluoride Gel Compared to Placebo Over 6 Months
Study Start Date : March 2011
Actual Primary Completion Date : October 2013
Actual Study Completion Date : October 2013

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Rashes
Drug Information available for: Fluoride

Arm Intervention/treatment
Active Comparator: Test
1.25% fluoride (elmex® gelée)
Drug: elmex® gelée
1.25% fluoride (elmex® gelée) Dosage: Weekly brushing with 0.5g of respective gel Route: Intraoral topical
Other Name: elmex® gel

Placebo Comparator: Control
0% fluoride (negative control)
Drug: negative control (placebo)
0% fluoride (negative control) Dosage: Weekly brushing with 0.5g Route: Intraoral topical

Primary Outcome Measures :
  1. WSL-size change [ Time Frame: 12 weeks ]
    Changes in size of white spot lesions (WSL) at 12 weeks

Secondary Outcome Measures :
  1. WSL-size change [ Time Frame: Baseline up to 24 weeks ]
    Changes in size of WSL over study time

  2. WSL-brightness change [ Time Frame: Baseline up to 24 weeks ]
    Changes in WSL brightness value (%)

  3. WSL index on all upper front teeth [ Time Frame: Baseline up to 24 weeks ]

    Modified white spot lesion index (Gorelick et al. 1982):

    0: no white spot formation

    1. slight white spot formation, thin rim
    2. excessive white spot formation, thicker bands
    3. white spot formation with cavitation

  4. Caries activity [ Time Frame: Baseline up to 24 weeks ]
    Caries activity index (LAA) according to the ICDAS II (Ekstrand et al. 2007)

  5. Plaque index (Silness and Löe 1964)on all upper front teeth [ Time Frame: Baseline up to 24 weeks ]

    The grades will be assessed visually on all upper front teeth using a standard dental probe.

    (0) no plaque on inspection and probing

    1. thin plaque film on gingival margin, detectable only on probing
    2. moderate plaque film along the gingival margin, visually detectable even without probing
    3. a lot of plaque along the gingival margin, filling the interdental spaces

  6. Gingival bleeding index on all upper front teeth [ Time Frame: Baseline up to 24 weeks ]

    Gingival bleeding index (Ainamo and Bay 1975). The following scores will be used:

    (0) no bleeding

    (1) bleeding occurs

  7. DMFT index: Dental health of all teeth [ Time Frame: Baseline, 24 weeks ]
    DMFT index according to Klein et al. (1938): Dental health of all teeth will be assessed with respect to decay (D), missing (M) or filling (F). The DMFT-Index will be calculated.

Information from the National Library of Medicine

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Ages Eligible for Study:   11 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Written informed consent
  • Healthy volunteers (≥11 years) scheduled for bracket removal
  • ≥ 1 WSL with a modified score 1 or 2 (Gorelick et al. 1982) on UFT at debonding

Exclusion Criteria:

  • Known hypersensitivity or allergy to study products and standard toothpaste ingredients and/or dental material used in the present study
  • Known hypersensitivity or allergy to placebo gel ingredients
  • Alterations in the teeth's enamel, e.g. hypoplasia, fluorosis
  • Any illness/condition potentially affecting the study outcome at investigator's discretion
  • Known pregnancy or breast feeding during the course of the study

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01329731

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Poliklinik für Kieferorthopädie, Justus-Liebig-Universität Giessen
Giessen, Germany, D-35392
Sponsors and Collaborators
Gaba International AG
PD Dr. Christian Heumann
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Gaba International AG Identifier: NCT01329731    
Other Study ID Numbers: GASAS-1002X
2010-020538-24 ( EudraCT Number )
First Posted: April 6, 2011    Key Record Dates
Last Update Posted: December 11, 2013
Last Verified: May 2011
Keywords provided by Gaba International AG:
white spot lesion
initial caries
amine fluoride
Additional relevant MeSH terms:
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Dental Caries
Tooth Demineralization
Tooth Diseases
Stomatognathic Diseases
Cariostatic Agents
Protective Agents
Physiological Effects of Drugs