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

Composite: Preference for replacement over repair - Scenario 7: non-stable (mobile) restoration

The intervention led to higher composite: Preference for replacement over repair - Scenario 7:…; 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 10.96 [6.53, 18.39]
Studies not reported
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 8: disruption of occlusal integrity

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 8:…; 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 1.76 [1.38, 2.24]
Studies not reported
GRADE not reported

Obesity or overweight (higher BMI, mostly WHO BMI ≥25/≥30; 2 studies used waist circumference) vs Normal Weight or Non‐Obese

Dental caries · Adults (≥18 years)

In the overweight subgroup, no significant association with dental caries (OR 0.99, 95% CI 0.98 to 1.00; ungraded).

2 findings from 1 review

Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and meta-analysis. 2025 All outcomes
Population-based cross-sectional studies; adults ≥18 years; 6 countries (Turkey, Portugal, China, Japan, Saudi Arabia, Israel, South Korea) · By BMI classification: overweight (vs study-defined non-overweight: normal or low weight)
OR 0.99 [0.98, 1.00]
Studies not reported
GRADE not reported
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and meta-analysis. 2025 All outcomes
Population-based cross-sectional studies; adults ≥18 years; 6 countries (Turkey, Portugal, China, Japan, Saudi Arabia, Israel, South Korea) · By BMI classification: obesity (vs study-defined non-obese: normal or low weight)
OR 1.04 [0.85, 1.23]
Studies not reported
GRADE not reported

Intervention not reported

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

The intervention showed no clear difference in 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: Medium
RR 2.01 [0.98, 4.09]
2 studies
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 7: non-stable (mobile) restoration

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 7:…; 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 18.78 [8.63, 40.89]
Studies not reported
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 7: non-stable (mobile) restoration

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 7:…; 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 34.41 [16.26, 72.86]
Studies not reported
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 8: disruption of occlusal integrity

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 8:…; 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 1.57 [1.31, 1.87]
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: Africa
RR 7.59 [3.13, 18.38]
2 studies
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 8: disruption of occlusal integrity

The intervention showed no clear difference in amalgam: Preference for replacement over repair - Scenario 8:…; 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 1.47 [0.87, 2.48]
2 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 7: non-stable (mobile) restoration

The intervention led to higher composite: Preference for replacement over repair - Scenario 7:…; 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 8.17 [2.20, 30.35]
2 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
Continent: Asia
RR 2.14 [1.47, 3.10]
11 studies
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 8: disruption of occlusal integrity

The intervention led to lower composite: Preference for replacement over repair - Scenario 8:…; 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 0.38 [0.26, 0.56]
11 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
Coverage: Covering cost of minimally invasive treatment
RR 2.00 [1.25, 3.20]
Studies not reported
GRADE not reported

Intervention not reported

Composite: Preference for replacement over repair - Scenario 7: non-stable (mobile) restoration

The intervention led to higher composite: Preference for replacement over repair - Scenario 7:…; 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 8.50 [6.23, 11.61]
2 studies
GRADE not reported

Intervention not reported

Amalgam: Preference for replacement over repair - Scenario 7: non-stable (mobile) restoration

The intervention led to higher amalgam: Preference for replacement over repair - Scenario 7:…; 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 14.98 [4.84, 46.32]
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: High
RR 0.79 [0.70, 0.88]
7 studies
GRADE not reported

Intervention not reported

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

The intervention led to higher amalgam: 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: Africa
RR 7.37 [3.51, 15.46]
2 studies
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: High
RR 2.54 [1.69, 3.81]
7 studies
GRADE not reported

Replacement of the defective restoration vs Repair of the defective restoration

Composite: Preference for replacement over repair - Scenario 8: disruption of occlusal integrity · Dentists managing a defective direct resin composite restoration (posterior occlusal Class I; standardized vignette of a 30-year-old,…

For a defective composite restoration with disruption of occlusal integrity, surveyed dentists most often preferred repair over replacement (pooled RR 0.37; 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 0.37 [0.29, 0.48]
21 studies · 3680 participants
GRADE not reported

Intervention not reported

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

The intervention led to higher amalgam: 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: South America
RR 5.15 [3.98, 6.66]
2 studies
GRADE not reported