Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

610 questions · 675 findings · 57 reviews · All outcomes

No studies found 105 · 15.6%GRADE not reported 429 · 63.6%Very low 102 · 15.1%Low 31 · 4.6%Moderate 8 · 1.2%High 0 · 0%

Neocone vs Alvogyl

Mean time to resolution of pain · Adults (>18 years) with established dry socket following permanent tooth extraction

Neocone led to lower time to complete resolution of pain (days) compared with alvogyl; GRADE not reported.

1 finding from 1 review

Integrated Chinese and Western medicine (incl. oral prednisone) vs Western medicine (incl. oral prednisone)

Clinical score · People with symptomatic, biopsy-confirmed oral lichen planus (OLP); not concurrently receiving other OLP treatment
1 finding from 1 review

Dietary advice on how to achieve a healthy diet for infants (tailored advice focused on a diet low in saturated fat and cholesterol intake) vs usual care

Mother gingival health (mild or moderate bone loss) · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…

Dietary advice on how to achieve a healthy diet for infants… showed no clear difference in mother gingival health (mild or moderate bone loss) compared with standard care; GRADE not reported.

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Overall survival, induction platinum + 5-fluorouracil prior to surgery vs surgery alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction platinum + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (low certainty).

1 finding from 1 review

Double primary (canine and first molar) tooth extraction vs Single primary (canine) tooth extraction

Incidence of successfully erupted PDC that were favourably positioned · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)

Double primary (canine and first molar) tooth extraction showed no clear difference in incidence of successfully erupted PDC that were favourably positioned compared with single primary (canine) tooth extraction; GRADE not reported.

3 findings from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Overall survival, induction platinum + 5-fluorouracil prior to radiotherapy vs radiotherapy alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction platinum + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (moderate certainty).

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Disease-free survival · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… led to lower disease-free survival, induction platinum + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone; GRADE not reported.

1 finding from 1 review

Concomitant (concurrent) chemoradiotherapy vs Radiotherapy alone

Locoregional control · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Concomitant (concurrent) chemoradiotherapy led to lower locoregional control, concurrent chemoradiotherapy (platinum +… compared with radiotherapy alone (non-resectable tumours); GRADE not reported.

1 finding from 1 review

Surgery +/- radiotherapy + (adjuvant) chemotherapy vs Surgery +/- radiotherapy alone (observation or adjuvant radiotherapy only)

Overall survival, post-surgery chemotherapy vs surgery alone (no radiotherapy) · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Surgery +/- radiotherapy + (adjuvant) chemotherapy showed no clear difference in overall survival, adjuvant chemotherapy vs observation alone… compared with surgery +/- radiotherapy alone (observation or adjuvant radiotherapy… (moderate certainty).

1 finding from 1 review

Concomitant (concurrent) chemoradiotherapy vs Radiotherapy alone

Disease-free survival · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Concomitant (concurrent) chemoradiotherapy led to lower disease-free survival, concurrent chemoradiotherapy vs radiotherapy… compared with radiotherapy alone (non-resectable tumours); GRADE not reported.

1 finding from 1 review

Concomitant (concurrent) chemoradiotherapy vs Radiotherapy alone

Overall survival, adjuvant concomitant chemoradiotherapy vs post-surgery radiotherapy alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Concomitant (concurrent) chemoradiotherapy probably leads to lower overall survival, concurrent chemoradiotherapy vs radiotherapy alone… compared with radiotherapy alone (non-resectable tumours) (moderate certainty).

1 finding from 1 review

Antimicrobial coolant A (chlorhexidine) vs povidone‐iodine

Reduction in level of contamination in aerosols (CFU): chlorhexidine vs povidone iodine coolant during ultrasonic scaling · People undergoing aerosol-generating procedures (AGPs) in a dental setting

It is very uncertain whether antimicrobial coolant A (chlorhexidine) changes reduction in level of contamination in aerosols (CFU): chlorhexidine… compared with antimicrobial coolant B (povidone iodine) (very low certainty).

1 finding from 1 review

Hand mallet (osteotomes) vs Electric mallet

Bone gain · Patients undergoing one-stage crestal maxillary sinus lift without bone grafts (baseline residual bone height about 6.5 mm)

Hand mallet (osteotomes) showed no clear difference in bone gain compared with electric mallet; GRADE not reported.

1 finding from 1 review

Transbuccal miniplate combined with intraoral approach vs Intraoral approach alone

Requirement for additional (surgical) interventions (plate removal within 90 days) · Adults with fractures of the mandibular angle

Transbuccal miniplate combined with intraoral approach led to lower requirement for additional (surgical) interventions (plate removal… compared with intraoral approach alone; GRADE not reported.

1 finding from 1 review

Two miniplates (transbuccal approach) vs One miniplate plus two screws (intraoral approach at external oblique ridge)

Requirement for additional (surgical) interventions (plate removal) · Adults with fractures of the mandibular angle

Two miniplates (transbuccal approach) showed no clear difference in requirement for additional (surgical) interventions (plate removal) compared with one miniplate plus two screws (intraoral approach at external…; GRADE not reported.

1 finding from 1 review