Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,355 questions · 2,459 findings · 279 reviews

No studies found 556 · 22.6%GRADE not reported 490 · 19.9%Very low 593 · 24.1%Low 479 · 19.5%Moderate 243 · 9.9%High 98 · 4%

Resin-based fissure sealant vs Fluoride varnish

Number of visits to the dentist for repair of sealant or fluoride varnish application · Children and adolescents (general population, aged under 20 years)

Resin-based fissure sealant led to higher number of visits to the dentist for repair of sealant or fluoride… compared with fluoride varnish; GRADE not reported.

1 finding from 1 review

Glass ionomer or resin-modified glass ionomer fissure sealant vs Fluoride varnish

Dentine caries in permanent molars (24 months) · Children and adolescents (general population, aged under 20 years)
1 finding from 1 review

Resin-based fissure sealant plus fluoride varnish vs Fluoride varnish

Dentine caries in permanent molars (24 months) · Children and adolescents (general population, aged under 20 years)

It is very uncertain whether resin-based fissure sealant plus fluoride varnish changes dentine caries in permanent molars (yes/no) compared with fluoride varnish alone (very low certainty).

1 finding from 1 review

Resin-based fissure sealant vs Fluoride varnish

Change in DMFS (decayed, missing and filled permanent surfaces) increment · Children and adolescents (general population, aged under 20 years)

Resin-based fissure sealant led to lower change in DMFS (decayed, missing and filled permanent surfaces)… compared with fluoride varnish; GRADE not reported.

1 finding from 1 review

Antimicrobial mouthwash and/or nasal spray (alone or in combination), any concentration, frequency or dosage vs No treatment or saline or water

Changes in microbiome in oral cavity, nasal cavity, oro- or nasopharynx · Patients with suspected or confirmed COVID-19 infection

The review found no eligible studies for this question.

1 finding from 1 review

Any antimicrobial mouthwash and/or nasal spray (alone or in combination), at any concentration, delivered to the patient or HCW before and/or after an AGP vs No treatment or saline or water

COVID-19 viral content of aerosol · Patients without suspected or confirmed COVID-19 infection undergoing aerosol-generating procedures (AGPs), and the healthcare workers…

The review found no eligible studies for this question.

1 finding from 1 review

Resin-based fissure sealant vs Fluoride varnish

Dentine caries in permanent molars (24 months) · Children and adolescents (general population, aged under 20 years)

It is very uncertain whether resin-based fissure sealant changes dentine caries in permanent molars (yes/no) compared with fluoride varnish (very low certainty).

1 finding from 1 review

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Presence of any TNS –lidocaine vs bupivacaine · adults undergoing surgery

Risk of transient neurological symptoms with spinal lidocaine probably leads to lower presence of any TNS –lidocaine vs bupivacaine compared with other local anaesthetic (moderate certainty).

1 finding from 1 review

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Presence of any TNS – lidocaine vs 2‐chloroprocaine · adults undergoing surgery

Risk of transient neurological symptoms with spinal lidocaine showed no clear difference in presence of any TNS – lidocaine vs 2‐chloroprocaine compared with other local anaesthetic (low certainty).

1 finding from 1 review

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Presence of any TNS – lidocaine vs levobupivacaine · adults undergoing surgery

Risk of transient neurological symptoms with spinal lidocaine may leads to lower presence of any TNS – lidocaine vs levobupivacaine compared with other local anaesthetic (low certainty).

1 finding from 1 review

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Presence of any TNS – lidocaine vs mepivacaine · adults undergoing surgery

It is very uncertain whether risk of transient neurological symptoms with spinal lidocaine changes presence of any TNS – lidocaine vs mepivacaine compared with other local anaesthetic (very low certainty).

1 finding from 1 review

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Presence of any TNS – lidocaine vs prilocaine · adults undergoing surgery

Risk of transient neurological symptoms with spinal lidocaine probably leads to lower presence of any TNS – lidocaine vs prilocaine compared with other local anaesthetic (moderate certainty).

1 finding from 1 review

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Presence of any TNS – lidocaine vs procaine · adults undergoing surgery

Risk of transient neurological symptoms with spinal lidocaine probably leads to lower presence of any TNS – lidocaine vs procaine compared with other local anaesthetic (moderate certainty).

1 finding from 1 review

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Presence of any TNS – lidocaine vs ropivacaine · adults undergoing surgery

Risk of transient neurological symptoms with spinal lidocaine may leads to lower presence of any TNS – lidocaine vs ropivacaine compared with other local anaesthetic (low certainty).

1 finding from 1 review

Family therapy vs psychological interventions

Remission

It is very uncertain whether family therapy changes remission post‐intervention compared with psychological interventions (very low certainty).

2 findings from 1 review

Combined spinal‐epidural vs high‐dose spinal

Number of women requiring a repeat regional block or a general anaesthetic as a result of failure to establish adequate initial blockade · women undergoing caesarean section

Combined spinal‐epidural showed no clear difference in number of women requiring a repeat regional block or a general… compared with high‐dose spinal (low certainty).

1 finding from 1 review