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Evidence found and GRADE certainty

13 questions · 18 findings · 2 reviews · Oral medicine and oral cancer

No studies found 0 · 0%GRADE not reported 16 · 88.9%Very low 0 · 0%Low 0 · 0%Moderate 2 · 11.1%High 0 · 0%

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of TAS2R43 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of TAS2R43 was significantly associated with ECC in the TWAS (p = 8.78e-8); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of SMIM10L1 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of SMIM10L1 was significantly associated with ECC in the TWAS (p = 1.70e-7); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of LACC1 (chr13q14.11) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted LACC1 expression reached the TWAS threshold for ECC (p = 3.98e-5) but was flagged as a possible false positive (LD misspecification) and not further considered; ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of NRAD1 (LINC00284) (chr13q14.11) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted NRAD1 (LINC00284) expression reached the TWAS threshold for ECC (p = 1.69e-6) but was flagged as a possible false positive (LD misspecification) and not further considered; ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of TAS2R31 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of TAS2R31 was suggestively associated with ECC in the TWAS (p = 1.04e-5); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of TAS2R14 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of TAS2R14 was significantly associated with ECC in the TWAS (p = 1.06e-6); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of IGSF5 (chr21q22.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted IGSF5 expression reached the TWAS threshold for ECC (p = 7.22e-5) but was flagged as a possible false positive (LD misspecification) and not further considered; ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of LINC02905 (C8orf49) (chr8p23.1) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted LINC02905 (C8orf49) expression reached the TWAS threshold for ECC (p = 1.82e-8) but was flagged as a possible false positive (LD misspecification) and not further considered; ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of CDH17 (chr8q22.1) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of CDH17 was significantly associated with ECC in the TWAS (p = 3.32e-8); genetic association, ungraded.

1 finding from 1 review

Clear aligners (Invisalign / thermoformed aligners) vs Conventional orthodontic appliance treatment

Plaque · Orthodontic patients undergoing comprehensive treatment (late mixed or permanent dentition, no active caries)

In randomized trials, clear aligners probably reduce plaque accumulation versus fixed appliances, though the subgroup estimate is imprecise and its CI crosses no effect (SMD -1.79, 95% CI -3.63 to 0.04; moderate certainty).

6 findings from 1 review
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Clear aligners (Invisalign / thermoformed aligners) vs Conventional orthodontic appliance treatment

White spot lesion incidence · Orthodontic patients undergoing comprehensive treatment (late mixed or permanent dentition, no active caries)

Most studies reported a lower incidence of white spot lesions with clear aligners than fixed appliances, but heterogeneous assessment methods precluded meta-analysis (ungraded).

1 finding from 1 review

Clear aligners (Invisalign / thermoformed aligners) vs Conventional orthodontic appliance treatment

Severity of white spot lesions (surface area and depth) · Orthodontic patients undergoing comprehensive treatment (late mixed or permanent dentition, no active caries)

White spot lesion severity was assessed narratively in a small number of studies and not meta-analyzed; evidence is limited (ungraded).

1 finding from 1 review

Clear aligners (Invisalign / thermoformed aligners) vs Conventional orthodontic appliance treatment

Salivary caries-associated bacteria (S. mutans and Lactobacilli, subjects with >10^5 CFU/mL) · Orthodontic patients undergoing comprehensive treatment (late mixed or permanent dentition, no active caries)

Both included studies reported higher salivary caries-associated bacteria (S. mutans and Lactobacilli) with fixed appliances than clear aligners; not meta-analyzed (ungraded).

1 finding from 1 review