Findings

What do systematic reviews say?

2 questions · 3 findings · 2 reviews · Endodontics and dental trauma

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No studies found 0 · 0%GRADE not reported 3 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Amalgam vs Preformed metal crown (PMC)

Treatment failure (annual failure rate) · Children with carious primary molars treated by pulpotomy (vital pulp therapy)

Preformed metal crowns had a low annual failure rate (2.4%) in primary molars after pulpotomy, lower than amalgam in the same trial (single high-risk-of-bias RCT; low quality of evidence; not GRADE-rated).

2 findings from 1 review

Clinical effectiveness of restorative materials for the restoration of carious lesions in pulp treated primary teeth:… 2022 All outcomes
1 year · University, Turkey (Sonmez and Duruturk 2010) · Preformed metal crown (PMC) arm
AFR 2.4
1 study · 83 participants
GRADE not reported
Clinical effectiveness of restorative materials for the restoration of carious lesions in pulp treated primary teeth:… 2022 All outcomes
1 year · University, Turkey (Sonmez and Duruturk 2010) · Amalgam (A) arm
AFR 14.3
1 study · 83 participants
GRADE not reported

Amalgam restoration vs Composite resin, compomer, conventional glass-ionomer cement, or resin-modified GIC (head-to-head RCT comparators)

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

Amalgam restorations in primary teeth showed a wide annual failure rate (1-28%) across 4 RCTs; the evidence is of low quality (high risk of bias; ungraded).

1 finding from 1 review

Clinical effectiveness of restorative materials for the restoration of carious primary teeth without pulp therapy: a… 2022 All outcomes
12-60 months follow-up (4 trials; 1-5 years) · Mixed university and private-practice settings (Sweden, India, Greece, UK)
Annual failure rate (%) 1-28%
4 studies
GRADE not reported