Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

582 questions · 664 findings · 25 reviews · Endodontics and dental trauma

No studies found 111 · 16.7%GRADE not reported 417 · 62.8%Very low 69 · 10.4%Low 50 · 7.5%Moderate 16 · 2.4%High 1 · 0.2%

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

Pain at 12 months or more (long-term postobturation pain) · 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

Pulpotomy with Biodentine vs Pulpotomy with mineral trioxide aggregate (MTA)

Overall success (composite of clinical and radiographic success) · Human permanent teeth with irreversible pulpitis due to carious pulp exposure

Biodentine had a significantly higher pulpotomy success rate than MTA (indirect comparison; numeric estimate not available); ungraded.

1 finding from 1 review

Hall technique vs Compomer restoration or non-restorative caries treatment

Treatment failure (annual failure rate) · Children (aged 3-8 years) with 2-surface occluso-proximal dentine caries in primary molars, no pulp therapy

Preformed metal (Hall) crowns had a low reported annual failure rate (3.1%) versus compomer (14.7%) in one RCT; low quality of evidence (ungraded).

1 finding from 1 review

Composite resin vs Compomer, glass-ionomer/RMGIC, amalgam, or glass carbomer

Treatment failure (annual failure rate) · Children with previously unrestored, vital carious lesions in primary teeth (no pulp therapy); aged 1.5-11 years

Composite resin (hybrid 0-19.5%; bulk-fill 0-16.9%) performed comparably to or better than most alternatives across 11 RCTs; evidence is of low to unclear quality (ungraded).

1 finding from 1 review

Bio-active restorative materials vs Any restorative material or technique

Not applicable (no eligible studies) · Children with carious primary teeth (no pulp therapy)

No eligible RCTs assessed new bio-active restorative materials in carious primary teeth; this is an evidence gap identified by the review.

1 finding from 1 review

Pulpotomy (full or partial) vs None (single-arm pooled success proportion)

Overall success (composite of clinical and radiographic success) · Human permanent teeth with irreversible pulpitis and open (immature) root apex due to carious pulp exposure

In open-apex teeth, pooled pulpotomy success was 95.8% (95% CI 81-99%); significantly higher than closed apex (z=2.33, p=0.02); ungraded.

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

Pulpotomy (full or partial) vs None (single-arm pooled success proportion)

Overall success (composite of clinical and radiographic success) · Human permanent teeth with irreversible pulpitis and closed (mature) root apex due to carious pulp exposure

In closed-apex teeth, pooled pulpotomy success was 83% (95% CI 69-91%); significantly lower than open apex (z=2.33, p=0.02); ungraded.

1 finding from 1 review

Composite resin with a beveled cavity margin vs Composite resin with no bevel (butt-joint margin)

Restoration failure · Children with carious primary teeth

No comparative effect estimate was reported; no bevel had twice the failure rate in the review narrative.

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

Hall technique vs Compomer restoration or non-restorative caries treatment

Restoration failure · Children with carious primary teeth

No comparative effect estimate was reported; the review reports this three-arm comparison but tabulates only compomer failure.

1 finding from 1 review

Metal-free single crowns (full-contour zirconia) vs Composite strip crown

Restoration failure · Children with carious primary teeth

No comparative effect estimate was reported; failure rates were 3.3% and 15%.

1 finding from 1 review

Composite resin with etch-and-rinse (total-etch) adhesion vs Composite resin with self-etch adhesion (same universal adhesive)

Restoration failure · Children with carious primary teeth

No comparative effect estimate was reported; etch-and-rinse had a higher tabulated failure rate.

1 finding from 1 review

Pulpotomy with mineral trioxide aggregate (MTA) vs Pulpotomy with calcium hydroxide (Ca(OH)2)

Overall success (composite of clinical and radiographic success) · Human permanent teeth with irreversible pulpitis due to carious pulp exposure

MTA had a significantly higher pulpotomy success rate than calcium hydroxide (indirect comparison; numeric estimate not available); ungraded.

1 finding from 1 review

Composite resin vs High-viscosity GIC and bulk-fill composite resins

Restoration failure · Children with carious primary teeth

No comparative effect estimate was reported; tabulated failure rates ranged from 0% to 2.9%.

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

Glass carbomer vs Resin-modified glass-ionomer cement + composite resin (modified open-sandwich restoration)

Restoration failure · Children with carious primary teeth

No comparative effect estimate was reported; glass carbomer had the highest tabulated failure range.

1 finding from 1 review

Glass carbomer restoration (placed after drilling) vs Composite resin or RMGIC

Treatment failure (annual failure rate) · Children with previously unrestored, vital carious lesions in primary teeth (no pulp therapy); aged 1.5-11 years

Glass carbomer had very high failure rates (up to 46.2%) in a single RCT, far worse than composite resin or RMGIC; low quality of evidence (ungraded).

1 finding from 1 review