Non-Cochrane · aetiology · PM42769090

Association between type 1 diabetes mellitus and dental caries in children and adolescents: a meta-analysis and Mendelian randomization study.

Zhu Keyi, Gao Fei, Yue Junzhu, et al. · Frontiers in endocrinology · 2026 · PubMed · doi:10.3389/fendo.2026.1929819

Findings

30 findings

Population
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Publication after 2020
SMD 0.46 [-0.03, 0.95]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Confounder-adjusted studies
SMD 0.02 [-0.4, 0.43]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
HbA1c ≥ 8%
SMD -0.2 [-1.52, 1.12]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Unadjusted studies
SMD 0.25 [0.09, 0.41]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Other countries
SMD -0.33 [-0.72, 0.06]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
HbA1c ≥ 8%
SMD 0.17 [-0.08, 0.41]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries indexSMD 0.19 [0.06, 0.31]
GRADE not reported
12 studies
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Age < 12 years
SMD -0.3 [-0.5, -0.09]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Disease duration < 1 month
SMD 0.42 [0.17, 0.88]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Asia
SMD -0.13 [-0.47, 0.21]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Balanced sex distribution
SMD -0.05 [-0.4, 0.3]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFS caries indexSMD 0.01 [-0.36, 0.38]
GRADE not reported
4 studies
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Male predominance
SMD -0.02 [-0.36, 0.31]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Balanced sex distribution
SMD 0.21 [-0.36, 0.77]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Publication after 2020
SMD 0 [-0.2, 0.21]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Publication before 2020
SMD -0.21 [-0.46, 0.05]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Confounder-adjusted studies
SMD 0.09 [-0.09, 0.27]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Unadjusted studies
SMD -0.2 [-0.57, 0.17]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Male predominance
SMD 0.24 [0.09, 0.38]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Disease duration < 1 year
SMD 0.02 [-0.42, 0.46]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
HbA1c < 8%
SMD 0.23 [-0.16, 0.62]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
HbA1c < 8%
SMD -0.12 [-0.4, 0.16]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Female predominance
SMD 0.04 [-0.15, 0.24]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Europe
SMD -0.08 [-0.52, 0.37]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries indexSMD -0.12 [-0.4, 0.15]
GRADE not reported
8 studies
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Publication before 2020
SMD 0.24 [0.1, 0.38]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Disease duration ≥ 1 year
SMD -0.55 [-1.16, 0.07]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsdmft caries index
Age ≥ 12 years
SMD 0.46 [0.1, 0.83]
GRADE not reported
Studies not reported
Children and adolescentsType 1 diabetes mellitusHealthy controlsDMFT caries index
Disease duration ≥ 1 month
SMD 0.11 [-0.04, 0.27]
GRADE not reported
Studies not reported
Children and adolescents (under 18 years)Type 1 diabetes mellitusHealthy non-diabetic controlsCaries experience in primary teeth (dmft index)
Cross-sectional (single examination) · Multinational (Europe, Asia, Middle East, Africa, South America) · Sex composition: sex not reported
SMD -0.87 [-1.40, -0.35]
GRADE not reported
Studies not reported

Included primary studies 46

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Abid 2021
Dental caries prevalence among Type 1 diabetes mellitus (T1DM) 6- to 12-year-old children in Riyadh, Kingdom of Saudi Arabia compared to…
PMID:34194191
2021this review onlynot statednot extracted yet
Abid et al 2021
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Ahmad 2017
Oral health status of children with type 1 diabetes: a comparative study.
PMID:28988224
2017this review onlynot statednot extracted yet
Ahmad et al 2017
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
ANNA 2013
Salivary innate defense system in type 1 diabetes mellitus in children with mixed and permanent dentition.
PMID:23445270
2013this review onlynot statednot extracted yet
ANNA et al 2013
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Arheiam 2014
Dental caries experience and periodontal treatment needs of 10- to 15-year old children with type 1 diabetes mellitus.
PMID:24506709
2014this review onlynot statednot extracted yet
Arheiam et al 2014
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
AZZA 2011
Dental caries and dental care level (restorative index) in children with diabetes mellitus type 1.
PMID:20731732
2011this review onlynot statednot extracted yet
AZZA et al 2011
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Babu 2018
Assessment of dental caries and gingival status among a group of type 1 diabetes mellitus and healthy children of South India - a…
PMID:30465719
2018this review onlynot statednot extracted yet
Babu et al 2018
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Blumer 2018
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Cresio 2012
Salivary flow and dental caries in Brazilian youth with type 1 diabetes mellitus.
PMID:23649059
2012this review onlynot statednot extracted yet
Cresio et al 2012
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Enosakhare 2012
Caries experience among children with type 1 diabetes in Kuwait.
PMID:23265163
2012this review onlynot statednot extracted yet
Enosakhare et al 2012
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Fatima 2025
Assessment of oral health status in a population of Moroccan children with type 1 diabetes.
PMID:41019448
2025this review onlynot statednot extracted yet
Fatima et al 2025
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Ferizi 2018
Dental Caries Among Kosovar Children with Type 1 Diabetes Mellitus
DOI:10.4034/pboci.2018.181.86
2018this review onlynot statednot extracted yet
Ferizi et al 2018
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Geetha 2019
Oral health status and knowledge among 10-15years old type 1 diabetes mellitus children and adolescents in Bengaluru.
PMID:30900662
2019this review onlynot statednot extracted yet
Geetha et al 2019
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Ivana 2010
Association between metabolic control and oral health in adolescents with type 1 diabetes mellitus.
PMID:20219586
2010this review onlynot statednot extracted yet
Ivana 2016
Salivary flow rate, buffer capacity, and urea concentration in adolescents with type 1 diabetes mellitus.
PMID:27845883
2016this review onlynot statednot extracted yet
Ivana et al 2010
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Ivana et al 2016
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Jolanta 2005
Dietary and oral hygiene habits in children with type I diabetes mellitus related to dental caries.
PMID:16254468
2005this review onlynot statednot extracted yet
Jolanta et al 2005
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Loai 2017
Salivary Distinctiveness and Modifications in Males with Diabetes and Behçet's Disease.
PMID:28321337
2017this review onlynot statednot extracted yet
Loai et al 2017
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Mirjana 2021
Dental health status in children with type 1 diabetes mellitus in Montenegro
DOI:10.2298/vsp181202050d
2021this review onlynot statednot extracted yet
Mirjana et al 2021
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Neslihan 2023
Salivary macrophage activation-related chemokines and mitogen-activated kinase kinase-degrading proteolytic activity in type 1 diabetes…
PMID:36601897
2023this review onlynot statednot extracted yet
Neslihan et al 2023
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Nishna 2024
Assessment of Oral Health Status among Children with Type I Diabetes Mellitus: A Cross-sectional Study.
PMID:39650303
2024this review onlynot statednot extracted yet
Nishna et al 2024
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Rezvan 2016
Dental Health Status and Hygiene in Children and Adolescents with Type 1 Diabetes Mellitus.
PMID:27840339
2016this review onlynot statednot extracted yet
Rezvan et al 2016
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Sahba 2019
Comparison of the Mean DMF Index in Type I Diabetic and Healthy Children.
PMID:30937339
2019this review onlynot statednot extracted yet
Sahba et al 2019
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Salehi 2024
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Siudikiene 2006
Dental caries and salivary status in children with type 1 diabetes mellitus, related to the metabolic control of the disease.
PMID:16460335
2006this review onlynot statednot extracted yet
Siudikiene et al 2006
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Swanljung 1992
Caries and saliva in 12-18-year-old diabetics and controls.
PMID:1465562
1992this review onlynot statednot extracted yet
Swanljung et al 1992
matched by author and year (probable)
NRthis review onlynot statednot extracted yet

Review question

ElementPlanned (methods)Found (results)
PopulationChildren under 12 years and adolescents aged 12 to 18 yearsChildren and adolescents aged 2 to 19 years with and without T1DM in 24 studies from Europe, Asia, Middle East, Africa and South America
InterventionClinically diagnosed type 1 diabetes mellitusType 1 diabetes mellitus (n=24 studies)
ComparisonNot specified (non-diabetic controls implied)Healthy non-diabetic controls (n=24 studies)
OutcomesDental caries by WHO criteria (dmft/DMFT/DMFS/dmfs); causal effect of genetically predicted T1DM on deciduous and permanent caries by Mendelian randomizationDMFT (n=12 datasets); DMFS (n=4); dmft (n=8); MR: permanent and deciduous caries (ALSPAC GWAS, 67 SNPs), not pooled across studies
Study designsCross-sectional studies or baseline data from longitudinal cohort studies; only high-quality studies (AHRQ score ≥8) analyzed; two-sample Mendelian randomization on GWAS summary data24 cross-sectional studies plus a two-sample Mendelian randomization on GWAS summary data (n=24)
TimingNot specifiedCross-sectional (single examination)