Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

342 questions · 380 findings · 34 reviews · Oral Health

No studies found 97 · 25.5%GRADE not reported 190 · 50%Very low 67 · 17.6%Low 23 · 6.1%Moderate 3 · 0.8%High 0 · 0%

Brushed less than twice per day vs Brushed twice or more per day

Fluorosis (percentage prevalence in permanent teeth) · Children exposed to topical fluoride when under 6 years old; fluorosis assessed in permanent teeth at 6 to 18 years

It is very uncertain whether brushed less than twice per day changes fluorosis (percentage prevalence in permanent teeth) compared with brushed twice or more per day (very low certainty).

2 findings from 1 review

Used less than half of the brush of fluoride toothpaste vs Used half or more of the brush

Fluorosis (percentage prevalence in permanent teeth) · Children exposed to topical fluoride when under 6 years old; fluorosis assessed in permanent teeth at 6 to 18 years

It is very uncertain whether used less than half of the brush of fluoride toothpaste changes fluorosis (percentage prevalence in permanent teeth) compared with used half or more of the brush (very low certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Post-treatment pain within 1 week (from first session) · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

Single-visit root canal treatment probably leads to higher post-treatment pain within 1 week (from first session) compared with multiple-visit root canal treatment (two or more visits) (moderate certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

Single-visit root canal treatment showed no clear difference in postoperative pain in the immediate postobturation period (up to 72… compared with multiple-visit root canal treatment (two or more visits) (low certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Tooth extraction due to endodontic problems · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

It is very uncertain whether single-visit root canal treatment changes tooth extraction due to endodontic problems compared with multiple-visit root canal treatment (two or more visits) (very low certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Swelling or flare-up · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

It is very uncertain whether single-visit root canal treatment changes swelling or flare-up compared with multiple-visit root canal treatment (two or more visits) (very low certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Analgesic (painkiller) use · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

It is very uncertain whether single-visit root canal treatment changes analgesic (painkiller) use compared with multiple-visit root canal treatment (two or more visits) (very low certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Pain at two weeks (postobturation) · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

Single-visit root canal treatment showed no clear difference in pain at two weeks (postobturation) compared with multiple-visit root canal treatment (two or more visits); GRADE not reported.

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Sinus or fistula formation at last · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

It is very uncertain whether single-visit root canal treatment changes sinus tract or fistula formation compared with multiple-visit root canal treatment (two or more visits) (very low certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Postoperative pain intensity in the immediate postobturation period (up to 72 hours), continuous (VAS) · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

Single-visit root canal treatment showed no clear difference in postoperative pain intensity in the immediate postobturation period… compared with multiple-visit root canal treatment (two or more visits) (low certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Pain at 1 month · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption
1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Postobturation pain at 1 week · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

It is very uncertain whether single-visit root canal treatment changes postobturation pain at 1 week compared with multiple-visit root canal treatment (two or more visits) (very low certainty).

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Radiological failure (periapical radiolucency) after at least 1 year · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

Single-visit root canal treatment showed no clear difference in radiological failure (periapical radiolucency) after at least 1 year compared with multiple-visit root canal treatment (two or more visits) (moderate certainty).

1 finding from 1 review

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

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

Changes in vertical height 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 plus barrier membrane changes changes in vertical height of alveolar ridge (mm) compared with ARP with alloplast without membrane (very low certainty).

1 finding from 1 review

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

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

ARP with xenograft (bone graft) vs Extraction alone

Marginal bone level change · 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 xenograft (bone graft) vs Extraction alone

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 xenograft (bone graft) changes changes in bucco-lingual/palatal width of alveolar ridge (mm) compared with extraction alone (very low certainty).

1 finding from 1 review

ARP with alloplast vs Extraction alone

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

ARP with alloplast vs ARP with xenograft

Changes in probing depth (PD) at teeth adjacent to the extraction site · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

ARP with alloplast showed no clear difference in changes in probing depth (PD) at teeth adjacent to the extraction site compared with ARP with xenograft; GRADE not reported.

1 finding from 1 review