Findings

What do systematic reviews say?

2 questions · 2 findings · 2 reviews · Dental caries

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No studies found 0 · 0%GRADE not reported 1 · 50%Very low 0 · 0%Low 1 · 50%Moderate 0 · 0%High 0 · 0%

Cleft lip and/or palate (CL/P) vs Healthy controls without cleft

Gingival index (GI) · Individuals assessed for periodontal health (mainly children and adolescents, age >2 years)

Persons with orofacial cleft have a higher gingival index than healthy controls (MD 0.15, 95% CI 0.11 to 0.19; low certainty).

1 finding from 1 review

Oral health in patients with cleft lip and palate: a systematic literature review and meta-analysis of periodontal and… 2025 All outcomes
Clinical dental examination; various countries (e.g., Brazil, India, China, Thailand, USA)
MD 0.15 [0.11, 0.19]
4 studies · 488 participants
Low

Non-syndromic cleft lip and palate (CLP) status and its oral microbiota (exposure/grouping) vs Children and adolescents aged 0-18 years without CLP (controls)

Periodontal conditions (gingival inflammation, bleeding on probing, probing depth, clinical attachment loss) · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)

Narrative synthesis of 6 studies suggests children/adolescents with CLP have poorer periodontal status (higher gingival and plaque indices, deeper probing, more bleeding and attachment loss) and harbor periodontopathogens; no pooled estimate and the evidence is ungraded.

1 finding from 1 review

Characterization of the oral microbiota and the relationship of the oral microbiota with the dental and periodontal… 2024 All outcomes
Multiple countries; pediatric cleft/craniofacial care; saliva, dental plaque, subgingival plaque and nasal/oropharyngeal samples
Six studies (Ahluwalia, Rawashdeh, Funahashi, Perdikogianni, Quirynen, Costa) reported that patients with CLP had higher gingival index and biofilm/plaque index, deeper probing depth, more bleeding on probing and…
6 studies
GRADE not reported