Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,587 questions · 5,761 findings · 495 reviews

No studies found 1,011 · 17.5%GRADE not reported 1,797 · 31.2%Very low 1,100 · 19.1%Low 1,052 · 18.3%Moderate 649 · 11.3%High 152 · 2.6%

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Fibre-reinforced composite fixed (bonded) retainer vs Multistrand / spiral wire fixed (bonded) retainer

Adverse effects on oral health: bleeding on probing (lower arch) · People who had received fixed appliance orthodontic treatment

The review found no eligible studies for this question.

1 finding from 1 review

Gum chewing (sugar-free) vs Within-subject before/after comparison of soft gum vs hard gum (no no-gum control)

Oral mucosal moisture · Elderly (>60 years) and medically compromised adults with xerostomia / dry mouth

One small study found that chewing hard (but not soft) gum increased oral mucosal moisture.

1 finding from 1 review

CAD/CAM nitinol fixed (bonded) retainer vs Multistrand / spiral wire fixed (bonded) retainer

Adverse effects on oral health: Gingival Index (lower arch) · People who had received fixed appliance orthodontic treatment

CAD/CAM nitinol fixed (bonded) retainer showed no clear difference in adverse effects on oral health: Gingival Index (lower arch) compared with conventional/analogue multistrand fixed (bonded) retainer (low certainty).

1 finding from 1 review

Light vibrational forces (LVF) vs Conventional orthodontic appliance treatment

Oral health-related quality of life · Adolescents and adults with malocclusion undergoing orthodontic treatment with fixed or removable appliances
1 finding from 1 review

Systemic or topical corticosteroids vs placebo or control

Short‐term visual acuity between 20/20 and 20/40 ≤ 2 weeks after treatment; oral corticosteroids · people with traumatic hyphema

Systemic or topical corticosteroids showed no clear difference in short‐term visual acuity between 20/20 and 20/40 ≤ 2 weeks after… compared with placebo or control treatment (low certainty).

1 finding from 1 review

Systemic or topical corticosteroids vs placebo or control

Final visual acuity between 20/20 and 20/40 at end of treatment; oral corticosteroids · people with traumatic hyphema

Systemic or topical corticosteroids showed no clear difference in final visual acuity between 20/20 and 20/40 at end of treatment;… compared with placebo or control treatment (low certainty).

1 finding from 1 review

Intervention not reported

Face‐to‐face behavioral intervention vs minimal or no support (Measured 3 to 6 months with CO‐validated prolonged and continuous abstinence, and self‐reported abstinence) · people who use waterpipe

The intervention may leads to higher face‐to‐face behavioral intervention vs minimal or no support… (low certainty).

1 finding from 1 review

Intervention not reported

Varenicline plus behavioral intervention vs placebo plus behavioral intervention ‐ (repeated point prevalence abstinence (not even a puff/chew/session in the last 7 days) at each of weeks 5, 12, and 25 (combined), verified by CO cutoff < 10 ppm) · people who use waterpipe

The intervention showed no clear difference in varenicline plus behavioral intervention vs placebo plus behavioral… (low certainty).

1 finding from 1 review

Intervention not reported

Bupropion therapy plus behavioral intervention vs behavioral intervention alone (continuous waterpipe smoking abstinence, defined as an expired CO of 9 ppm or less at the 6‐month postintervention · people who use waterpipe

It is very uncertain whether the intervention changes bupropion therapy plus behavioral intervention vs behavioral… (very low certainty).

1 finding from 1 review

Intervention not reported

Bupropion therapy plus behavioral support versus self‐help (continuous waterpipe smoking abstinence, defined as an expired CO of 9 ppm or less at the 6‐month postintervention · people who use waterpipe

It is very uncertain whether the intervention changes bupropion therapy plus behavioral support versus self‐help… (very low certainty).

1 finding from 1 review

Surgical vs non‐surgical treatment

Kujala patellofemoral disorders score Scale from: 0 to 100 (higher scores = better function) · people with lateral patellar dislocation

It is very uncertain whether surgical changes knee and physical functiona Measured using the Kujala patellofemoral… compared with non‐surgical treatment (very low certainty).

1 finding from 1 review

Zinc vs placebo

BMD Z score (total hip/femoral neck) · children and adults with β‐thalassaemia major and low bone mass

Summary of findings – zinc probably leads to higher BMD Z score (total hip/femoral neck) compared with placebo (moderate certainty).

1 finding from 1 review

Intervention not reported

BMD Z score (total hip/femoral neck) · people with β‐thalassaemia and osteoporosis

It is very uncertain whether the intervention changes BMD Z score (total hip/femoral neck) (very low certainty).

1 finding from 1 review

Full‐mouth ultrasonic scaling plus photodynamic therapy vs full‐mouth ultrasonic scaling alone

Resolution or reduction in severity of any other dental complication: oral infections (measured by reduction in or resolution of lesions such as periapical cysts, abscesses, or space infections) · people with thalassaemia (any age)

The review found no eligible studies for this question.

1 finding from 1 review