Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,413 questions · 2,602 findings · 93 reviews · All outcomes

No studies found 452 · 17.4%GRADE not reported 1,582 · 60.8%Very low 392 · 15.1%Low 122 · 4.7%Moderate 53 · 2%High 1 · 0%

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

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

Surgery +/- radiotherapy + (adjuvant) chemotherapy probably leads to lower overall survival, adjuvant concurrent chemoradiation vs adjuvant… compared with surgery +/- radiotherapy alone (observation or adjuvant radiotherapy… (moderate certainty).

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 cisplatin + 5-fluorouracil prior to concurrent chemoradiation (cisplatin) vs concurrent chemoradiation (cisplatin) · 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 cisplatin + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (low certainty).

1 finding from 1 review

Extraction of the primary (baby) canine (single primary tooth extraction) vs No extraction (non-intervention control)

Costs and cost‐effectiveness · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)

The review found no eligible studies for this question.

1 finding from 1 review

Sealing using sealant materials vs Non-selective carious tissue removal and conventional restoration (CR)

Lesion progression · Children and/or adults with permanent or primary teeth, vital (sensitive) pulps, and cavitated or dentine carious lesions conventionally…
1 finding from 1 review

ARP with xenograft (bone graft) vs Extraction alone

Need for additional augmentation prior to implant placement · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

It is very uncertain whether ARP with xenograft (bone graft) changes need for additional augmentation prior to implant placement compared with extraction alone (very low certainty).

1 finding from 1 review

ARP with allograft (bone graft) vs ARP with xenograft

Need for additional augmentation prior to implant placement · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

It is very uncertain whether ARP with allograft changes need for additional augmentation prior to implant placement compared with ARP with xenograft (very low certainty).

1 finding from 1 review

ARP with alloplast vs ARP with xenograft

Complications (e.g. discomfort, pain and swelling) · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
1 finding from 1 review

ARP with alloplast plus barrier membrane vs ARP with alloplast without membrane

Implant failure rate · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

The review found no eligible studies for this question.

1 finding from 1 review

ARP with alloplast vs ARP with xenograft

Changes in bucco-lingual/palatal width of alveolar ridge (mm) · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

It is very uncertain whether ARP with alloplast changes changes in bucco-lingual/palatal width of alveolar ridge (mm) compared with ARP with xenograft (very low certainty).

1 finding from 1 review

ARP with demineralised bone matrix, single particle size vs ARP with demineralised bone matrix, multiple particle size

Changes in bucco-lingual/palatal width of alveolar ridge (mm) · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

It is very uncertain whether ARP with demineralised bone matrix, single particle size changes changes in bucco-lingual/palatal width of alveolar ridge (mm) compared with ARP with demineralised bone matrix, multiple particle size (very low certainty).

1 finding from 1 review

Hall technique vs Non-restorative cavity control (NRCC)

Efficiency, costs or cost-effectiveness · Children and/or adults with permanent or primary teeth, vital (sensitive) pulps, and cavitated or dentine carious lesions conventionally…
1 finding from 1 review

Chemotherapy regimen A (+/- locoregional treatment) vs Chemotherapy regimen B (+/- locoregional treatment)

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

Sealing using sealant materials vs no treatment

Lesion progression · Children and/or adults with permanent or primary teeth, vital (sensitive) pulps, and cavitated or dentine carious lesions conventionally…
1 finding from 1 review

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

Time taken for the canine to erupt into the mouth · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)

The review found no eligible studies for this question.

1 finding from 1 review

ARP with alloplast vs ARP with xenograft

Implant failure rate · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

It is very uncertain whether ARP with alloplast changes implant failure rate compared with ARP with xenograft (very low certainty).

1 finding from 1 review

ARP with allograft (bone graft) vs ARP with xenograft

Aesthetic outcomes of future prosthodontic rehabilitation · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

The review found no eligible studies for this question.

1 finding from 1 review

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

Overall treatment time wearing orthodontic appliances · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)

The review found no eligible studies for this question.

1 finding from 1 review

ARP with demineralised bone matrix, single particle size vs ARP with demineralised bone matrix, multiple particle size

Need for additional augmentation prior to implant placement · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

The review found no eligible studies for this question.

1 finding from 1 review

Extraction of the primary (baby) canine (single primary tooth extraction) vs No extraction (non-intervention control)

Number of participants referred for surgical exposure of the PDC · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)

It is very uncertain whether extraction of the primary (baby) canine (single primary tooth… changes number of participants referred for surgical exposure of the PDC compared with no extraction (non-intervention control) (very low certainty).

1 finding from 1 review