Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,127 questions · 1,590 findings · 132 reviews · Oral Health

No studies found 189 · 11.9%GRADE not reported 1,166 · 73.3%Very low 130 · 8.2%Low 69 · 4.3%Moderate 25 · 1.6%High 11 · 0.7%

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Fracture · Participants in observational studies

The meta-analysis of observational studies reported a SMD (to OR) of 0.31 (95% CI 0.23 to 0.42) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

NobelActive internal connection implants vs Nobel Speedy Groovy external connection implants

Marginal bone level change · Adults with missing teeth who received osseointegrated root-formed oral implants, functionally loaded and followed for at least 1 year

NobelActive internal connection implants led to lower marginal bone level change compared with nobel Speedy Groovy external connection implants; GRADE not reported.

1 finding from 1 review

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Body‐mass index (BMI) · Adults (general population)

Meta-analysis of observational studies (higher vs lower 25(OH)D) for Body mass index: Z score -0.15 (95% CI -0.19 to -0.11), statistically significant. Umbrella review outcome-level evidence grade: Suggestive.

1 finding from 1 review

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Sporadic colorectal adenoma · Adults (general population)

Meta-analysis of observational studies (higher vs lower 25(OH)D) for Sporadic colorectal adenoma: OR 0.82 (95% CI 0.69 to 0.97), statistically significant. Umbrella review outcome-level evidence grade: No conclusion.

1 finding from 1 review

NobelActive internal connection implants vs NobelReplace implants

Implant failure · Adults with missing teeth who received osseointegrated root-formed oral implants, functionally loaded and followed for at least 1 year

NobelActive internal connection implants showed no clear difference in implant failure compared with nobelReplace implants; GRADE not reported.

1 finding from 1 review

Astra cylindrical turned surface implants vs Astra cylindrical TiO2-blasted surface implants

Implant failure · Adults with missing teeth who received osseointegrated root-formed oral implants, functionally loaded and followed for at least 1 year
1 finding from 1 review

WINSIX cylindrical implants vs WINSIX tapered implants

Implant failure · Adults with missing teeth who received osseointegrated root-formed oral implants, functionally loaded and followed for at least 1 year

WINSIX cylindrical implants showed no clear difference in implant failure compared with WINSIX tapered implants; GRADE not reported.

1 finding from 1 review

Removable appliance with palatal crib associated with high-pull chincup vs no treatment

Position of the incisors (upper incisor inclination) · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
1 finding from 1 review
  • Orthodontic and orthopaedic treatment for anterior open bite in children 2014 · Cochrane All outcomes
    End of treatment (12 months)
    The author reported that data (1.NA, 1-NA, 1-PP, 1.NB, 1-NB, 1-GoMe) showed a statistically significant difference. There was palatal inclination of the upper incisors in the intervention group that contributed to…
    1 study
    GRADE not reported

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

All cause mortality (in CKD patients) · Participants in observational studies

The meta-analysis of observational studies reported a RR of 0.88 (95% CI 0.81 to 0.93) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Type 2 diabetes (prevalent) · Adults (general population)

Meta-analysis of observational studies (higher vs lower 25(OH)D) for Type 2 diabetes (prevalent): OR 0.45 (95% CI 0.25 to 0.82), statistically significant. Umbrella review outcome-level evidence grade: No conclusion.

1 finding from 1 review

Frankel's function regulator-4 (FR-4) with lip-seal training vs no treatment

Side effects / tolerability · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…

The review found no eligible studies for this question.

1 finding from 1 review

Removable appliance with palatal crib associated with high-pull chincup vs no treatment

Failure to correct the anterior open bite (open bite not closed) · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…

Removable appliance with palatal crib associated with high-pull… led to lower failure to correct the anterior open bite (open bite not closed) compared with no treatment; GRADE not reported.

1 finding from 1 review

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

All cause mortality · Adults (general population)

Meta-analysis of observational studies (higher vs lower 25(OH)D) for All cause mortality: HR 0.72 (95% CI 0.66 to 0.78), statistically significant. Umbrella review outcome-level evidence grade: No conclusion.

1 finding from 1 review

Maxillary sinus lift (augmentation) with long implants vs Short implants (5 to 8.5 mm) without sinus augmentation

Prosthesis failure · Patients with missing teeth and an atrophic posterior maxilla, with residual bone height between 4 and 9 mm below the maxillary sinus

Maxillary sinus lift (augmentation) with long implants showed no clear difference in prosthesis failure compared with short implants (5 to 8.5 mm) without sinus augmentation (moderate certainty).

1 finding from 1 review