A Comparative Assessment of Orthodontic Treatment Outcomes Using the Quantitative Light-Induced Fluorescence Method
QLF
1 other identifier
interventional
51
0 countries
N/A
Brief Summary
The aim of this 2-arm parallel trial was to evaluate enamel demineralization after an indirect bonding technique in comparison to a direct bonding technique group using the quantitative light-induced fluorescence method. Thirty-six patients who needed fixed orthodontic treatment were randomly separated into either the direct bonding group or the indirect bonding group. Eligibility criteria included moderate crowding in the maxillary and mandibular dental arch, good oral hygiene, absence of craniofacial anomalies, no previous orthodontic treatment and no deciduous, congenitally missing or extracted teeth. Randomization was made at the start of the study with a statistical analysis program (SAS Institute Inc., Cary, NC, USA.). For the patients in the indirect bonding group, bonding was performed with a flowable composite adhesive, while the patients in the direct bonding group received a bonding procedure with a conventional composite adhesive. Records were taken using quantitative light-induced fluorescence (QLF) with a Digital Biluminator (Inspektor Research Systems, Amsterdam, the Netherlands) in the pretreatment and posttreatment examination phases. The presence and extent of lesions on the buccal surfaces of all teeth, except the molar teeth, were assessed. The fluorescence loss, lesion area and percentage of fluorescence loss were determined using the system's software. The primary outcome of this study was evaluation of the effects of bonding techniques on white spot lesion formation by using the QLF method. Random sequence generation was performed with a computerized random 1:1 allocation using block sizes of 4. It was not possible for the clinicians and their interventions to be blocked. The patients and the specialists were blinded to the treatment groups when their treatment groups were aware.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jul 2011
Longer than P75 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 28, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 27, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
January 5, 2016
CompletedFirst Submitted
Initial submission to the registry
October 24, 2018
CompletedFirst Posted
Study publicly available on registry
November 13, 2018
CompletedNovember 13, 2018
November 1, 2018
2.3 years
October 24, 2018
November 8, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
White spot lesion incidence
In the indirect bonding technique group, less amount of white spot lesions are expected than the direct bonding technique in end of the treatment.
up to 2 year
Secondary Outcomes (1)
Quantitative white spot lesion amounts
up to 2 year
Study Arms (3)
Direct Bonding
EXPERIMENTALOn the individual teeth Conventional bracket placement Use conventional composite
Indirect bonding
EXPERIMENTALOn the dental stone models Indirect bracket placement Use flowable composite Use transfer trays
Quantitative Light-Induced Fluorescence
ACTIVE COMPARATORUse special device and software Determination of the number and effect of caries
Interventions
White spot lesion on the tooth surfaces detected with Quantitative Light-Induced Fluorescence Orthodontic Bonding.
The patients in the direct bonding group received a bonding procedure with a conventional composite adhesive.
For the patients in the indirect bonding group, bonding was performed with a flowable composite adhesive.
Eligibility Criteria
You may qualify if:
- medical healthy subjects
- mild to moderate crowding in the maxillary and mandibular dental arch,
- good oral hygiene,
- absence of craniofacial anomalies,
- no previous orthodontic treatment and
- no deciduous, congenitally missing or extracted teeth.
You may not qualify if:
- severe crowding,
- bad oral hygiene,
- presence of craniofacial anomalies,
- previous orthodontic, orthognathic or prosthetic treatment
- presence of congenital teeth deficiency, deciduous or extracted teeth
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (8)
Ogaard B. Prevalence of white spot lesions in 19-year-olds: a study on untreated and orthodontically treated persons 5 years after treatment. Am J Orthod Dentofacial Orthop. 1989 Nov;96(5):423-7. doi: 10.1016/0889-5406(89)90327-2.
PMID: 2816842BACKGROUNDvan der Veen MH, de Josselin de Jong E. Application of quantitative light-induced fluorescence for assessing early caries lesions. Monogr Oral Sci. 2000;17:144-62. doi: 10.1159/000061639.
PMID: 10949838BACKGROUNDSondhi A. Efficient and effective indirect bonding. Am J Orthod Dentofacial Orthop. 1999 Apr;115(4):352-9. doi: 10.1016/s0889-5406(99)70252-0.
PMID: 10194277BACKGROUNDGorelick L, Geiger AM, Gwinnett AJ. Incidence of white spot formation after bonding and banding. Am J Orthod. 1982 Feb;81(2):93-8. doi: 10.1016/0002-9416(82)90032-x.
PMID: 6758594RESULTBaysal A, Ulusoy SN, Uysal T. Evaluation of enamel demineralization in adolescents after rapid maxillary expansion using the quantitative light-induced fluorescence method: A single-center, randomized controlled clinical trial. Am J Orthod Dentofacial Orthop. 2016 Nov;150(5):731-739. doi: 10.1016/j.ajodo.2016.06.014.
PMID: 27871699RESULTYagci A, Korkmaz YN, Buyuk SK, Yagci F, Atilla AO. White spot lesion formation after treatment with full-coverage rapid maxillary expanders. Am J Orthod Dentofacial Orthop. 2016 Mar;149(3):331-8. doi: 10.1016/j.ajodo.2015.08.015.
PMID: 26926020RESULTTufekci E, Dixon JS, Gunsolley JC, Lindauer SJ. Prevalence of white spot lesions during orthodontic treatment with fixed appliances. Angle Orthod. 2011 Mar;81(2):206-10. doi: 10.2319/051710-262.1.
PMID: 21208070RESULTAtilla AO, Ozturk T, Eruz MM, Yagci A. A comparative assessment of orthodontic treatment outcomes using the quantitative light-induced fluorescence (QLF) method between direct bonding and indirect bonding techniques in adolescents: a single-centre, single-blind randomized controlled trial. Eur J Orthod. 2020 Sep 11;42(4):441-453. doi: 10.1093/ejo/cjz058.
PMID: 31375814DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- It was not possible for the clinicians and their interventions to be blocked. The patients and the specialists were blinded to the treatment groups when their treatment groups were aware.
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Ass. Prof.
Study Record Dates
First Submitted
October 24, 2018
First Posted
November 13, 2018
Study Start
July 28, 2011
Primary Completion
November 27, 2013
Study Completion
January 5, 2016
Last Updated
November 13, 2018
Record last verified: 2018-11