Findings

What do systematic reviews say?

1,052 questions · 1,797 findings · 134 reviews

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No studies found 10 · 0.6%GRADE not reported 1,630 · 90.7%Very low 95 · 5.3%Low 23 · 1.3%Moderate 22 · 1.2%High 17 · 0.9%

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 1: partial loss or fracture of the restoration

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 1:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Coverage: Covering cost of minimally invasive treatment
RR 4.09 [2.77, 6.04]
Studies not reported
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 3: secondary caries

The intervention led to higher composite: Preference for replacement over repair - Scenario 3:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
HDI: Low
RR 2.45 [1.73, 3.48]
2 studies
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 6: corrosion

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 6:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Coverage: Not covering
RR 1.54 [1.12, 2.12]
Studies not reported
GRADE not reported

Replacement of the defective restoration vs Repair of the defective restoration

Amalgam: Preference for replacement over repair - Scenario 5: open margin · Dentists managing a defective direct amalgam restoration (posterior occlusal Class I; standardized vignette of a 30-year-old,…

For a defective amalgam restoration with open margin, surveyed dentists most often preferred replacement over repair (pooled RR 5.14; p < 0.001); ungraded.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Not applicable (single time-point survey, June to October 2023) · Multinational (21 countries across Africa, Asia, Europe, South America); general dental practice · Overall (all 21 countries pooled)
RR 5.14 [4.02, 6.57]
21 studies · 3680 participants
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 4: marginal discoloration

The intervention led to higher composite: Preference for replacement over repair - Scenario 4:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Continent: Europe
RR 1.66 [1.09, 2.54]
6 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 2: loss of dental hard substance adjacent to the restoration

The intervention showed no clear difference in composite: Preference for replacement over repair - Scenario 2: loss…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
HDI: High
RR 0.85 [0.72, 1.00]
7 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 2: loss of dental hard substance adjacent to the restoration

The intervention led to lower composite: Preference for replacement over repair - Scenario 2: loss…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Coverage: Not covering
RR 0.66 [0.49, 0.90]
Studies not reported
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 1: partial loss or fracture of the restoration

The intervention led to lower composite: Preference for replacement over repair - Scenario 1:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Continent: South America
RR 0.70 [0.60, 0.81]
2 studies
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 1: partial loss or fracture of the restoration

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 1:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Coverage: Not covering
RR 3.85 [2.51, 5.93]
Studies not reported
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 1: partial loss or fracture of the restoration

The intervention showed no clear difference in composite: Preference for replacement over repair - Scenario 1:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Continent: Africa
RR 0.86 [0.74, 1.00]
2 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 5: open margin

The intervention led to higher composite: Preference for replacement over repair - Scenario 5: open…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Continent: Asia
RR 3.71 [2.01, 6.82]
11 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 6: superficial discoloration

The intervention led to lower composite: Preference for replacement over repair - Scenario 6:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
HDI: Medium
RR 0.34 [0.24, 0.49]
2 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 1: partial loss or fracture of the restoration

The intervention led to lower composite: Preference for replacement over repair - Scenario 1:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
HDI: Low
RR 0.75 [0.64, 0.87]
2 studies
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 6: corrosion

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 6:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Continent: Asia
RR 1.69 [1.12, 2.55]
11 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 2: loss of dental hard substance adjacent to the restoration

The intervention showed no clear difference in composite: Preference for replacement over repair - Scenario 2: loss…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
HDI: Low
RR 1.12 [0.68, 1.86]
2 studies
GRADE not reported

Replacement of the defective restoration vs Repair of the defective restoration

Amalgam: Preference for replacement over repair - Scenario 3: secondary caries · Dentists managing a defective direct amalgam restoration (posterior occlusal Class I; standardized vignette of a 30-year-old,…

For a defective amalgam restoration with secondary caries, surveyed dentists most often preferred replacement over repair (pooled RR 6.94; p < 0.001); ungraded.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Not applicable (single time-point survey, June to October 2023) · Multinational (21 countries across Africa, Asia, Europe, South America); general dental practice · Overall (all 21 countries pooled)
RR 6.94 [5.53, 8.71]
21 studies · 3680 participants
GRADE not reported

Breastfeeding for 12-24 months vs Not breastfed at the same age

Early childhood caries (ECC) · Children younger than 71 months (under 6 years)

Breastfeeding for 12-24 months is associated with higher ECC prevalence (low certainty).

1 finding from 1 review

Risk of Early Childhood Dental Caries Associated With Prolonged Breastfeeding: A Systematic Review and Meta-Analysis. 2025 All outcomes
12-24 months
PR 3.32 [1.57, 5.07]
2 studies
Low

Intervention not reported

Composite: Preference for replacement over repair - Scenario 3: secondary caries

The intervention led to higher composite: Preference for replacement over repair - Scenario 3:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Coverage: Not covering
RR 2.53 [1.70, 3.78]
Studies not reported
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 6: corrosion

The intervention showed no clear difference in amalgam: Preference for replacement over repair - Scenario 6:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
Continent: Europe
RR 1.28 [0.91, 1.81]
6 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 4: marginal discoloration

The intervention led to higher composite: Preference for replacement over repair - Scenario 4:…; GRADE not reported.

1 finding from 1 review

Clinical Decision-Making of Repair vs. Replacement of Defective Direct Dental Restorations: A Multinational… 2025 All outcomes
HDI: Very high
RR 1.82 [1.34, 2.46]
10 studies
GRADE not reported