Non-Cochrane · intervention · PM41457771

Oral Health Interventions in Children With Autism Spectrum Disorder: A Systematic Review and Meta-Analysis of Interventional Studies.

Rajaei Iman, Babaei Azadeh, Djalalinia Shirin, et al. · Clinical and experimental dental research · 2025 · PubMed · doi:10.1002/cre2.70258

Findings

9 findings

Population
Children and adolescents under 20 years with autism spectrum disorderOral health interventions (educational visual, verbal, booklet and procedural approaches; child and/or caregiver directed)Control or comparator interventions (e.g., conventional education, manual toothbrush, social story, passive video)Plaque index (PI)
Last post-intervention measurement · Not specified · Overall
SMD -0.73 [-1.02, -0.44]
Low
9 studies · 754 participants
Children and adolescents under 20 years with autism spectrum disorderOral health interventions (educational visual, verbal, booklet and procedural approaches; child and/or caregiver directed)Control or comparator interventions (e.g., conventional education, manual toothbrush, social story, passive video)Plaque indices combined (PI and OHI-S)
Last post-intervention measurement · Not specified · Sensitivity: nonrandomized studies only
SMD -0.11 [-0.39, 0.18]
Low
2 studies · 197 participants
Children and adolescents (under 20 years) with autism spectrum disorderOral health interventions (educational visual, verbal, booklet/leaflet; procedural)Control or comparator (conventional education, other modes, or standard care)Plaque indices combined (PI and OHI-S)
Not specified · Sensitivity: randomized studies only
SMD -1.12 [-1.58, -0.65]
Low
11 studies · 794 participants
Children and adolescents under 20 years with autism spectrum disorderOral health interventions (educational visual, verbal, booklet and procedural approaches; child and/or caregiver directed)Control or comparator interventions (e.g., conventional education, manual toothbrush, social story, passive video)Plaque indices combined (PI and OHI-S)
Last post-intervention measurement · Not specified · Overall
SMD -0.95 [-1.39, -0.52]
Low
12 studies · 991 participants
Children and adolescents under 20 years with autism spectrum disorderOral health interventions (educational visual, verbal, booklet and procedural approaches; child and/or caregiver directed)Control or comparator interventions (e.g., conventional education, manual toothbrush, social story, passive video)Simplified Oral Hygiene Index (OHI-S)
Last post-intervention measurement · Not specified · Trim-and-fill adjusted (5 imputed studies)
SMD -1.386 [-1.843, -0.929]
Low
Studies not reported
Children and adolescents under 20 years with autism spectrum disorderOral health interventions (educational visual, verbal, booklet and procedural approaches; child and/or caregiver directed)Control or comparator interventions (e.g., conventional education, manual toothbrush, social story, passive video)Gingival index (GI)
Last post-intervention measurement · Not specified · All studies
SMD -0.74 [-1.34, -0.14]
Low
6 studies · 563 participants
Children and adolescents under 20 years with autism spectrum disorderOral health interventions (educational visual, verbal, booklet and procedural approaches; child and/or caregiver directed)Control or comparator interventions (e.g., conventional education, manual toothbrush, social story, passive video)Gingival index (GI)
Last post-intervention measurement · Not specified · Sensitivity: excluding nonrandomized study
SMD -0.92 [-1.52, -0.32]
Low
5 studies · 503 participants
Children and adolescents under 20 years with autism spectrum disorderOral health interventions (educational visual, verbal, booklet and procedural approaches; child and/or caregiver directed)Control or comparator interventions (e.g., conventional education, manual toothbrush, social story, passive video)Simplified Oral Hygiene Index (OHI-S)
Last post-intervention measurement · Not specified · Overall
SMD -1.44 [-2.79, -0.08]
Low
4 studies · 287 participants
Children and adolescents under 20 years with autism spectrum disorderVideo-based (video modeling) oral health interventionsOther modes of intervention (pictures, verbal, other)Plaque index (PI)
Last post-intervention measurement · Not specified · Video-based interventions
SMD -0.69 [-1.2, -0.14]
Low
5 studies · 288 participants

Included primary studies 27

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Mah 2023
Studies on the regulatory properties of chloroplast fructose-1,6-bisphosphatase.
PMID:202319
19781 other reviewnot statednot extracted yet
Pai Khot 2023
Evaluation of a "Picture Assisted Illustration Reinforcement" (PAIR) System for Oral Hygiene in Children with Autism: A Double-Blind…
PMID:36832499
20231 other reviewPlaque index (PI); Simplified Oral Hygiene Index (OHI-S); Gingival index (GI)not extracted yet
Al-Batayneh 2020
Effectiveness of a tooth-brushing programme using the picture exchange communication system (PECS) on gingival health of children with…
PMID:31628661
2020this review onlynot statednot extracted yet
Aljubour 2022
Effect of Culturally Adapted Dental Visual Aids on Oral Hygiene Status during Dental Visits in Children with Autism Spectrum Disorder: A…
PMID:35626843
2022this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI)not extracted yet
Carli 2022
Oral Health Preventive Program in Patients with Autism Spectrum Disorder.
PMID:35455579
2022this review onlynot statednot extracted yet
Chawla 2021
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Doichinova 2019
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Du 2021
Evaluation of visual pedagogy in improving plaque control and gingival inflammation among preschool children with autism spectrum…
PMID:32621656
2021this review onlynot statednot extracted yet
Du 2022b
Developing a Toothbrushing Visual Pedagogy (TBVP) for Preschool Children with Autism Spectrum Disorder.
PMID:33689090
2022this review onlynot statednot extracted yet
Fenning 2022
Parent Training for Dental Care in Underserved Children With Autism: A Randomized Controlled Trial.
PMID:35211746
2022this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI)not extracted yet
Gandhi 2024
A comparative evaluation of video modeling and social stories for improving oral hygiene in children with autism spectrum disorder: A…
PMID:37646912
2024this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI); Gingival index (GI)not extracted yet
Ibrahim 2020
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Krishnan 2021
Effectiveness of two sensory-based health education methods on oral hygiene of adolescent with autism spectrum disorders: An…
PMID:34050975
2021this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI); Gingival index (GI)not extracted yet
Lefer 2018
[Teaching tooth brushing to children with autistic spectrum disorder : A tablet-based training programme.].
PMID:30541258
2018this review onlynot statednot extracted yet
Lopez Cazaux 2019
Toothbrushing training programme using an iPad® for children and adolescents with autism.
PMID:30879261
2019this review onlynot statednot extracted yet
Mahajan 2023
Evaluation of visual pedagogy teaching method for improving oral hygiene practice in children with Autism: An interventional study.
PMID:37727414
2023this review onlynot statednot extracted yet
Pawar 2022
Manual and Powered Toothbrushing Effectiveness on Autistic Children's Oral Hygiene Status.
PMID:36110675
2022this review onlyPlaque index (PI); Simplified Oral Hygiene Index (OHI-S)not extracted yet
Pilebro 2005
Teaching oral hygiene to children with autism.
PMID:15663439
2005this review onlynot statednot extracted yet
Piraneh 2023
Social Story Based Toothbrushing Education Versus Video-Modeling Based Toothbrushing Training on Oral Hygiene Status Among Male Students…
PMID:35871424
2023this review onlyPlaque index (PI); Simplified Oral Hygiene Index (OHI-S)not extracted yet
Popple 2016
Brief Report: Remotely Delivered Video Modeling for Improving Oral Hygiene in Children with ASD: A Pilot Study.
PMID:27106570
2016this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI)not extracted yet
Ramassamy 2019
Yoga therapy as an adjunct to traditional tooth brushing training methods in children with autism spectrum disorder.
PMID:31664728
2019this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI); Gingival index (GI)not extracted yet
Renuka 2022
Picture exchange communication system as a behavior modification technique for oral health assessment in autistic children.
PMID:36624899
2022this review onlynot statednot extracted yet
Sallam 2013
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Shalabi 2022
Picture Examination Communication System Versus Video Modelling in Improving Oral Hygiene of Children with Autism Spectrum Disorder: A…
PMID:35232533
2022this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI); Simplified Oral Hygiene Index (OHI-S)not extracted yet
Smutkeeree 2020
The Effectiveness of Visual Pedagogy for Toothbrushing in Children with Autism Spectrum Disorder.
PMID:33042882
2020this review onlynot statednot extracted yet
Vajawat 2015
A clinicomicrobiological study to evaluate the efficacy of manual and powered toothbrushes among autistic patients.
PMID:26681855
2015this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI); Gingival index (GI)not extracted yet
Zhou 2020
Social story-based oral health promotion for preschool children with special healthcare needs: A 24-month randomized controlled trial.
PMID:32578261
2020this review onlyPlaque indices combined (PI and OHI-S); Plaque index (PI); Gingival index (GI)not 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). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.

Review question

ElementPlanned (methods)Found (results)
PopulationChildren and adolescents under 20 years with a definitive diagnosis of autism spectrum disorderChildren with ASD aged 2 to 19 years (n=1918)
InterventionOral health interventions aimed at children, parents/caregivers/teachers or both (training, preventive techniques, procedures, behavior modules; video, pictures, verbal, booklets, apps)Educational (visual, verbal, booklet/leaflet) and procedural interventions; for children (16 studies), caregivers/parents/teachers (5), or both (6)
ComparisonWith or without comparator armsConventional education, other modes (social story, pictures, passive video), manual toothbrush, or no control (single-arm)
OutcomesDMFT/dmft, OHI-S, PI, GI and others; mixed-method indicators (feasibility, acceptability, QALY, autonomy)OHI-S, PI, GI pooled; DMFT/dmft, behavior and knowledge outcomes narrative
Study designsRandomized/nonrandomized clinical trials and quasi-experimental studies; no language or time restriction12 RCTs, 2 non-randomized studies, 13 quasi-experimental studies (n=27)
TimingNot specifiedNot specified

AMSTAR 2 items

Two independent extractors rated each item. Their ratings are shown side by side because they have not been reconciled yet. The overall rating follows Shea et al. 2017: one critical flaw gives Low, more than one gives Critically Low.

ItemExtractor AExtractor BAgree
1Research question includes PICO componentsYesNono
2Protocol established before the reviewcriticalPartial YesPartial Yesyes
3Choice of study designs explainedNoNoyes
4Comprehensive literature searchcriticalPartial YesPartial Yesyes
5Study selection in duplicateYesYesyes
6Data extraction in duplicateYesYesyes
7List of excluded studies with reasonscriticalNoNoyes
8Included studies described in detailPartial YesPartial Yesyes
9Risk of bias assessed satisfactorilycriticalRCT: Yes · NRSI: YesNRSI: Yes · RCT: Yesno
10Funding of included studies reportedNoNoyes
11Appropriate meta-analysis methodscriticalRCT: Yes · NRSI: NoNRSI: No · RCT: Yesno
12Impact of risk of bias on the pooled resultsNoNoyes
13Risk of bias accounted for in interpretationcriticalYesYesyes
14Heterogeneity explainedYesYesyes
15Publication bias investigatedcriticalYesYesyes
16Conflicts of interest reportedYesYesyes
OverallCritically LowCritically Lowyes