Non-Cochrane · prognostic · PM41039851

The Risk of Preterm Birth in Women With Periodontitis: A Systematic Review and Meta-Analysis.

Sokos Dimitris, Slot Dagmar Else, Dogan Berna, et al. · International journal of dental hygiene · 2026 · PubMed · doi:10.1111/idh.70001

Findings

Population Pregnant women

25 findings

Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Country socio-economic status: developed
OR 1.61 [1.25, 2.07]
GRADE not reported
4 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Study design: case-control
OR 2.86 [1.73, 4.72]
GRADE not reported
4 studies · 2472 participants
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Studies including smokers
OR 2.50 [1.74, 3.59]
GRADE not reported
8 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Periodontitis definition: >=4 mm CAL
OR 2.15 [1.44, 3.21]
GRADE not reported
2 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Periodontitis definition: >=4 teeth with PPD >=4 mm and CAL >=3 mm at the same site
OR 2.86 [1.79, 4.56]
GRADE not reported
5 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Study design: cohort
OR 2.07 [1.48, 2.89]
GRADE not reported
6 studies · 3436 participants
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Periodontitis definition: PPD >3 mm
OR 2.43 [1.68, 3.52]
GRADE not reported
8 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Periodontitis definition: PPD >2 mm
OR 2.87 [1.65, 4.99]
GRADE not reported
2 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Studies excluding participants with co-morbidities
OR 2.53 [1.45, 4.42]
GRADE not reported
6 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery
OR 2.38 [1.78, 3.18]
Moderate
11 studies · 5978 participants
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Periodontitis definition: >=2 affected teeth
OR 2.31 [1.60, 3.34]
GRADE not reported
3 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Country socio-economic status: developing
OR 3.08 [2.22, 4.26]
GRADE not reported
7 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Studies including participants with history of urinary tract infection
OR 2.38 [1.63, 3.49]
GRADE not reported
7 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Continent: South America
OR 4.03 [2.71, 6.00]
GRADE not reported
3 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Examined teeth: full mouth excluding third molars
OR 1.96 [1.50, 2.56]
GRADE not reported
5 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Studies excluding smokers
OR 1.71 [0.96, 3.05]
GRADE not reported
2 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Periodontitis definition: >=1 affected tooth
OR 1.63 [1.16, 2.31]
GRADE not reported
2 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Continent: North America
OR 2.27 [1.82, 2.84]
GRADE not reported
3 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Risk of bias: low
OR 2.49 [1.82, 3.42]
GRADE not reported
9 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Continent: Europe
OR 1.77 [1.28, 2.44]
GRADE not reported
3 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Periodontitis definition: >=3 mm CAL
OR 2.50 [1.60, 3.90]
GRADE not reported
6 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Periodontitis definition: >=1 mm CAL
OR 2.87 [1.65, 4.99]
GRADE not reported
2 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Examined teeth: full mouth without specification on third molars
OR 2.77 [1.72, 4.44]
GRADE not reported
6 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Studies including participants with co-morbidities
OR 2.16 [1.54, 3.03]
GRADE not reported
4 studies
Periodontitis (exposure)No periodontitisPreterm birth (<37 weeks)
Delivery · Risk of bias: high
OR 1.60 [0.75, 3.44]
GRADE not reported
2 studies

Included primary studies 11

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Agueda 2008
Periodontal disease as a risk factor for adverse pregnancy outcomes: a prospective cohort study.
PMID:18034850
2008this review onlyPreterm birth (<37 weeks)not extracted yet
Caneiro 2020
Periodontitis as a Preterm Birth Risk Factor in Caucasian Women: A Cohort Study.
PMID:32051974
2020this review onlyPreterm birth (<37 weeks)not extracted yet
Kumar 2013
Association of maternal periodontal health with adverse pregnancy outcome.
PMID:22845916
2013this review onlyPreterm birth (<37 weeks)not extracted yet
Lopez 2002
Higher risk of preterm birth and low birth weight in women with periodontal disease.
PMID:11820369
2002this review onlyPreterm birth (<37 weeks)not extracted yet
Macedo 2014
Periodontal disease and oral health-related behavior as factors associated with preterm birth: a case-control study in south-eastern Brazil.
PMID:23947938
2014this review onlyPreterm birth (<37 weeks)not extracted yet
Martinez de Tejada 2012
Association between early preterm birth and periodontitis according to USA and European consensus definitions.
PMID:22548257
2012this review onlyPreterm birth (<37 weeks)not extracted yet
Martinez-Martinez 2016
Association between periodontitis, periodontopathogens and preterm birth: is it real?
PMID:26576767
2016this review onlyPreterm birth (<37 weeks)not extracted yet
Offenbacher 2001
Maternal periodontitis and prematurity. Part I: Obstetric outcome of prematurity and growth restriction.
PMID:11887460
2001this review onlyPreterm birth (<37 weeks)not extracted yet
Perez-Molina 2019
Enfermedad periodontal como factor de riesgo adicional asociado con nacimiento pretérmino en México: un estudio de casos y controles.
PMID:31056598
2019this review onlyPreterm birth (<37 weeks)not extracted yet
Piscoya 2012
Maternal periodontitis as a risk factor for prematurity.
PMID:22044450
2012this review onlyPreterm birth (<37 weeks)not extracted yet
Pockpa 2022
Association Between Periodontitis and Preterm Birth in a Cohort of Pregnant Women in Ivory Coast.
PMID:36259439
2022this review onlyPreterm birth (<37 weeks)not extracted yet

Review question

ElementPlanned (methods)Found (results)
PopulationPregnant womenPregnant women (n=5978)
InterventionPeriodontitis defined by full-mouth clinical examination (PPD with CAL and/or radiographic bone loss)Periodontitis (n=2292)
ComparisonPregnant women without periodontitisNo periodontitis (n=3686)
OutcomesPreterm birth (<37 weeks, confirmed by a health care professional)Preterm birth (1304 events)
Study designsObservational studies: cohort, case-control, cross-sectional6 cohort, 4 case-control, 1 cross-sectional (n=11)
TimingNot specifiedNot specified