Non-Cochrane · aetiology · PM38387465

Distribution of initial caries lesions in relation to fixed orthodontic therapy. A systematic review and meta-analysis.

Salerno Claudia, Grazia Cagetti Maria, Cirio Silvia, et al. · European journal of orthodontics · 2024 · PubMed · doi:10.1093/ejo/cjae008

Oral HealthDental cariesOrthodonticsAMSTAR 2: not applicable
Full textEvery question was extracted from the full text, figures and supplements by two independent LLM extractors, disagreements adjudicated. Rows cite where in the review the value comes from.
Questions
9
current version
GRADE rated
6
No studies
0
Included studies
33
linked below
No studies 0 · 0%Ungraded 3 · 33.3%Very low 6 · 66.7%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Review question

ElementPlanned (methods)Found (results)
PopulationPatients in permanent dentition during or after fixed orthodontic (multibracket) appliance treatment (RCT/NRSI placebo or untreated groups, cohort, and cross-sectional studies; English; published after 1990)21 studies (16 countries; published 2005-2022); pooled denominators: prevalence 1448 subjects / 484 subjects (mean) / 11583 teeth; incidence 533 subjects / 208 subjects (mean) / 1890 teeth
InterventionFixed orthodontic treatment with fixed (multibracket) appliances (exposure)Fixed orthodontic multibracket appliances in all included studies
ComparisonNone prespecified (single-group prevalence/incidence estimation)None (single-group pooled proportions; untreated/placebo arms of RCTs and no-treatment groups contributed)
OutcomesPrimary: prevalence and/or incidence of ICLs at subject and/or tooth-surface level. Secondary: influence of demographic and treatment variables (age, sex, oral hygiene, treatment duration) on ICLsPooled prevalence 0.57 per subject (95% CI 0.48-0.65), mean 2.24 per subject (1.79-2.70), 0.22 per surface (0.14-0.33); pooled incidence 0.48 per subject (0.33-0.63), mean 2.29 per subject (1.12-3.46), 0.15 per surface (0.08-0.26); all with high heterogeneity (I2 88-99%)
Study designsRCTs, non-randomized studies of intervention (NRSI), cohort, and cross-sectional studies11 RCTs, 7 NRSIs, 3 observational studies without control group (21 included; 19 meta-analyzed; Hammad 2016 and van der Kaaij 2015 excluded from meta-analysis for data type)
TimingDuring or after fixed orthodontic treatment; studies published 1990 to May 2023Treatment durations ~3 to >=18 months; prevalence assessed during/at debonding, incidence during treatment

Search date: 01 May 2023. Databases: PubMed, Embase, Scopus; reference-list cross-referencing; grey literature via OpenGrey (opengrey.eu)

Questions and results

Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate)

Population: Patients (permanent dentition) during or after fixed orthodontic treatment with fixed (multibracket) appliances
5 questions
OutcomeEffectEvidenceStatus / GRADE
Prevalence of ICLs (mean number of lesions per subject)
During or after fixed orthodontic treatment (cross-sectional/at debonding) · Overall (random-effects model)
Patients had on average about 2.24 ICLs per subject during/after fixed orthodontic treatment (95% CI 1.79-2.70; very low certainty; very high heterogeneity).
Source: Results 'Meta-analysis'; Fig. 4b (forest plot); Abstract · same question in other reviews
MEAN 2.24 [1.79, 2.70]6 studies · 484 participantsVery low
Downgraded: inconsistency
Association between orthodontic treatment duration and ICLs prevalence
During or after fixed orthodontic treatment · By orthodontic treatment duration (subgroup meta-analysis; positive association, P=.01)
ICLs prevalence increased with longer orthodontic treatment duration (meta-regression P=.01; ungraded).
Source: Results 'Meta-analysis'; Discussion; Fig. 6a · same question in other reviews
Prevalence of ICLs positively associated with orthodontic treatment duration (meta-regression, P=.01); effect size/slope not available (Fig. 6a image not provided)NRUngraded
Association between patient age and number of ICLs
During or after fixed orthodontic treatment · By patient age (subgroup meta-analysis; no significant association)
Patient age was not significantly associated with the number of ICLs (ungraded).
Source: Results 'Meta-analysis'; Discussion 'ICLs and subject-related factors' · same question in other reviews
No significant association found between patient age and the number of ICLs (meta-regression / subgroup analysis)NRUngraded
Prevalence of ICLs (proportion of tooth surfaces affected)
During or after fixed orthodontic treatment (cross-sectional/at debonding) · Overall (random-effects model)
About 22% of tooth surfaces showed ICLs during/after fixed orthodontic treatment (pooled 0.22, 95% CI 0.14-0.33; very low certainty; extreme heterogeneity).
Source: Results 'Meta-analysis'; Fig. 4c (forest plot); Abstract · same question in other reviews
Proportion 0.22 [0.14, 0.33]6 studies · 11583 participantsVery low
Downgraded: inconsistency
Prevalence of ICLs (proportion of subjects affected)
During or after fixed orthodontic treatment (cross-sectional/at debonding) · Overall (random-effects model)
Around 57% of patients had ICLs during or after fixed orthodontic treatment (pooled prevalence 0.57, 95% CI 0.48-0.65; very low certainty; very high heterogeneity).
Source: Results 'Meta-analysis'; Fig. 4a (forest plot); Abstract · same question in other reviews
Proportion 0.57 [0.48, 0.65]13 studies · 1448 participantsVery low
Downgraded: inconsistency

Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate)

Population: Patients undergoing fixed orthodontic treatment with fixed (multibracket) appliances, followed for development of new ICLs
4 questions
OutcomeEffectEvidenceStatus / GRADE
Incidence of new ICLs (mean number of new lesions per subject)
During fixed orthodontic treatment (development of new lesions) · Overall (random-effects model)
Patients developed on average about 2.29 new ICLs during fixed orthodontic treatment (95% CI 1.12-3.46; very low certainty; very high heterogeneity).
Source: Results 'Meta-analysis'; Fig. 5b (forest plot); Abstract · same question in other reviews
MEAN 2.29 [1.12, 3.46]5 studies · 208 participantsVery low
Downgraded: inconsistency
Incidence of new ICLs (proportion of tooth surfaces developing new lesions)
During fixed orthodontic treatment (development of new lesions) · Overall (random-effects model)
About 15% of tooth surfaces developed new ICLs during fixed orthodontic treatment (pooled 0.15, 95% CI 0.08-0.26; very low certainty; extreme heterogeneity).
Source: Results 'Meta-analysis'; Fig. 5c (forest plot); Abstract · same question in other reviews
Proportion 0.15 [0.08, 0.26]4 studies · 1890 participantsVery low
Downgraded: inconsistency
Association between orthodontic treatment duration and ICLs incidence
During or after fixed orthodontic treatment · By orthodontic treatment duration (subgroup meta-analysis; positive association, P<.01)
ICLs incidence increased with longer orthodontic treatment duration (meta-regression P<.01; ungraded).
Source: Results 'Meta-analysis'; Discussion; Fig. 6b · same question in other reviews
Incidence of new ICLs positively associated with orthodontic treatment duration (meta-regression, P<.01); effect size/slope not available (Fig. 6b image not provided)NRUngraded
Incidence of new ICLs (proportion of subjects developing new lesions)
During fixed orthodontic treatment (development of new lesions) · Overall (random-effects model)
About 48% of patients developed new ICLs during fixed orthodontic treatment (pooled incidence 0.48, 95% CI 0.33-0.63; very low certainty; very high heterogeneity).
Source: Results 'Meta-analysis'; Fig. 5a (forest plot); Abstract · same question in other reviews
Proportion 0.48 [0.33, 0.63]7 studies · 533 participantsVery low
Downgraded: inconsistency

Included primary studies 33

Open as a trial list
StudyAlso included byOutcomes it informs hereTrial PICOResults
van der Kaaij et al. 2015
A prospective, randomized placebo-controlled clinical trial on the effects of a fluoride rinse on white spot lesion development and…
PMID:25913893
3 other reviewsnot statednot extracted yetnot extracted yet
Hammad and Knosel 2016
Efficacy of a new sealant to prevent white spot lesions during fixed orthodontic treatment
DOI:10.1007/s00056-016-0052-2
1 other reviewnot statednot extracted yetnot extracted yet
Mahmoudzadeh et al. 2019
Effect of CO2 Laser on the Prevention of White Spot Lesions During Fixed Orthodontic Treatment: A Randomized Clinical Trial.
PMID:31565692
1 other reviewnot statednot extracted yetnot extracted yet
Martignon et al. 2010
matched by author and year (probable)
1 other reviewnot statednot extracted yetnot extracted yet
Mohammed et al. 2021
matched by author and year (probable)
1 other reviewnot statednot extracted yetnot extracted yet
Najafi et al. 2022
Evaluation of the preventive effect of two concentrations of xylitol varnish versus fluoride varnish on enamel demineralization around…
DOI:10.1093/ejo/cjab049
1 other reviewnot statednot extracted yetnot extracted yet
Najafi et al. 2022
Evaluation of the preventive effect of two concentrations of xylitol varnish versus fluoride varnish on enamel demineralization around…
PMID:34379121
1 other reviewnot statednot extracted yetnot extracted yet
Sonesson et al. 2020
Fluoride varnish for the prevention of white spot lesions during orthodontic treatment with fixed appliances: a randomized controlled trial
DOI:10.1093/ejo/cjz045
1 other reviewnot statednot extracted yetnot extracted yet
Sonesson et al. 2020
Fluoride varnish for the prevention of white spot lesions during orthodontic treatment with fixed appliances: a randomized controlled trial.
PMID:31197364
1 other reviewnot statednot extracted yetnot extracted yet
Stecksen-Blicks et al. 2007
Caries-Preventive Effectiveness of a Fluoride Varnish: A Randomized Controlled Trial in Adolescents with Fixed Orthodontic Appliances
DOI:10.1159/000107932
1 other reviewnot statednot extracted yetnot extracted yet
Stecksén-Blicks et al. 2007
Caries-preventive effectiveness of a fluoride varnish: a randomized controlled trial in adolescents with fixed orthodontic appliances.
PMID:17827963
1 other reviewnot statednot extracted yetnot extracted yet
Almosa et al. 2014
Diagnosing the severity of buccal caries lesions in governmental and private orthodontic patients at debonding, using the ICDAS-II and the…
PMID:24144384
this review onlynot statednot extracted yetnot extracted yet
Boersma et al. 2005
Caries Prevalence Measured with QLF after Treatment with Fixed Orthodontic Appliances: Influencing Factors
DOI:10.1159/000081655
this review onlynot statednot extracted yetnot extracted yet
Boersma et al. 2005
Caries prevalence measured with QLF after treatment with fixed orthodontic appliances: influencing factors.
PMID:15591733
this review onlynot statednot extracted yetnot extracted yet
Esenlik et al. 2016
matched by author and year (probable)
this review onlynot statednot extracted yetnot extracted yet
Esenlik et al. 2016
Efficacy of a casein phosphopeptide amorphous calcium phosphate (CPP-ACP) paste in preventing white spot lesions in patients with fixed…
PMID:28045314
this review onlynot statednot extracted yetnot extracted yet
Gizani et al. 2016
Effect of the probiotic bacterium<i>Lactobacillus reuteri</i>on white spot lesion development in orthodontic patients
DOI:10.1093/ejo/cjv015
this review onlynot statednot extracted yetnot extracted yet
Gizani et al. 2016
Effect of the probiotic bacterium Lactobacillus reuteri on white spot lesion development in orthodontic patients.
PMID:25840585
this review onlynot statednot extracted yetnot extracted yet
Hammad and Knösel 2016
Efficacy of a new sealant to prevent white spot lesions during fixed orthodontic treatment : A 12-month, single-center, randomized…
PMID:27734089
this review onlynot statednot extracted yetnot extracted yet
Heinig and Hartmann 2008
Efficacy of a sealant : study on the efficacy of a sealant (Light Bond) in preventing decalcification during multibracket therapy.
PMID:18506401
this review onlynot statednot extracted yetnot extracted yet
Jiang et al. 2013
matched by author and year (probable)
this review onlynot statednot extracted yetnot extracted yet
Jiang et al. 2013
Effect of 1.23% acidulated phosphate fluoride foam on white spot lesions in orthodontic patients: a randomized trial.
PMID:23756315
this review onlynot statednot extracted yetnot extracted yet
Jiang et al. 2015
matched by author and year (probable)
this review onlynot statednot extracted yetnot extracted yet
Jiang et al. 2015
Patterns and Risk Factors for White Spot Lesions in Orthodontic Patients with Fixed Appliances.
PMID:26485510
this review onlynot statednot extracted yetnot extracted yet
Lucchese and Gherlone 2013
Prevalence of white-spot lesions before and during orthodontic treatment with fixed appliances
DOI:10.1093/ejo/cjs070
this review onlynot statednot extracted yetnot extracted yet
Martignon et al. 2010
Plaque, caries level and oral hygiene habits in young patients receiving orthodontic treatment.
PMID:21046903
this review onlynot statednot extracted yetnot extracted yet
Pinto et al. 2018
Does the Duration of Fixed Orthodontic Treatment Affect Caries Activity among Adolescents and Young Adults?
DOI:10.1159/000488209
this review onlynot statednot extracted yetnot extracted yet
Pinto et al. 2018
Does the Duration of Fixed Orthodontic Treatment Affect Caries Activity among Adolescents and Young Adults?
PMID:29669345
this review onlynot statednot extracted yetnot extracted yet
Ravikiran et al. 2021
matched by author and year (probable)
this review onlynot statednot extracted yetnot extracted yet
Sonesson et al. 2014
Effectiveness of high-fluoride toothpaste on enamel demineralization during orthodontic treatment--a multicenter randomized controlled trial
DOI:10.1093/ejo/cjt096
this review onlynot statednot extracted yetnot extracted yet
Sonesson et al. 2014
Effectiveness of high-fluoride toothpaste on enamel demineralization during orthodontic treatment-a multicenter randomized controlled trial.
PMID:24375756
this review onlynot statednot extracted yetnot extracted yet
Toti et al. 2022
White Spots Prevalence and Tooth Brush Habits during Orthodontic Treatment.
PMID:35206934
this review onlynot statednot extracted yetnot extracted yet
Tufekci et al. 2011
Prevalence of white spot lesions during orthodontic treatment with fixed appliances.
PMID:21208070
this review onlynot statednot extracted yetnot extracted yet

Overlap with other reviews

Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match).