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Fluoride-releasing Elastomeric Modules Reduce Decalcification: a Randomized Controlled Trial

¹ The Dental Hospital, Richardson Road, Newcastle upon Tyne NE2 4A2, UK
² Orthodontic Department, St Luke's Hospital, Bradford BD5 0NA, UK
³ Orthodontic Department, Chester Royal Infirmary, Chester CH2 1UL, UK
⁴ Orthodontic Department, University Dental Hospital of Manchester, Manchester M15 6FH, UK

Abstract

Objective: To determine whether fluoride releasing elastomeric modules reduced the incidence of decalcification around orthodontic brackets during a complete course of orthodontic treatment.

Design: A randomised controlled, split mouth design.

Setting: The study was carried out in the orthodontic department of Newcastle-upon-Tyne Dental Hospital, UK.

Subjects and methods: 21 consecutive patients (126 teeth) undergoing fixed appliance therapy were studied. A split mouth technique was adopted to examine the upper labial segment, where one side (left or right) was randomly assigned to the experimental group, and the opposite side served as a control throughout their course of orthodontic treatment.

Interventions: The control teeth were ligated to the archwire using conventional modules. The experimental teeth were ligated to the archwire using Fluoride releasing elastomeric modules.

Outcome measures: Standardised photographs were taken of the upper labial segment before and after completion of orthodontic treatment, and the degree of decalcification assessed in each tooth quadrant, using a modification of the Enamel Defect Score.

Results: Decalcification was found to occur in both treatment groups, though to a significantly greater degree on the control side (p = 0•002). The fluoride module side showed significantly fewer serious decalcified lesions than the control (p = 0•013). No patients withdrew from the study.

Conclusions:It would appear that the use of fluoride releasing elastomeric modules reduces the degree of decalcification experienced during orthodontic treatment.

Key words: Decalcification, Fluoride-releasing Elastomeric Module, Randomized Controlled Trial.

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