Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,916 questions · 3,207 findings · 167 reviews · related questions CL0289

No studies found 596 · 18.6%GRADE not reported 1,666 · 51.9%Very low 603 · 18.8%Low 252 · 7.9%Moderate 78 · 2.4%High 12 · 0.4%

6% HP strip vs 10% CP gel in tray

Tooth whitening - reported by the patient · Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline shade)

6% HP strip showed no clear difference in tooth whitening - reported by the patient compared with 10% CP gel in tray; GRADE not reported.

1 finding from 1 review

4% prilocaine plain vs 2% lidocaine, 1:100,000 epinephrine

Speed of onset of anaesthesia (soft tissue, simulated) · Participants of any age and gender undergoing dental procedures, and volunteers who took part in simulated scenario studies in which…

4% prilocaine plain showed no clear difference in speed of onset of anaesthesia (soft tissue, simulated) compared with 2% lidocaine, 1:100,000 epinephrine (low certainty).

1 finding from 1 review

4% articaine plain vs 4% articaine, 1:100,000 epinephrine

Speed of onset of anaesthesia (pulpal, electric pulp tester; healthy pulps) · Participants of any age and gender undergoing dental procedures, and volunteers who took part in simulated scenario studies in which…

It is very uncertain whether 4% articaine plain changes speed of onset of anaesthesia (pulpal, electric pulp tester; healthy… compared with 4% articaine, 1:100,000 epinephrine (very low certainty).

1 finding from 1 review

Ball (stud) attachment system vs Bar attachment system

Re-treatment: repair of attachment system (short term) · Edentulous adults receiving mandibular implant overdentures (opposing conventional complete maxillary dentures)

It is very uncertain whether ball (stud) attachment system changes re-treatment: repair of attachment system (short term) compared with bar attachment system (very low certainty).

1 finding from 1 review

Ball (stud) attachment system vs Bar attachment system

Prosthodontic success (short term) · Edentulous adults receiving mandibular implant overdentures (opposing conventional complete maxillary dentures)
1 finding from 1 review

Self-etch adhesive + acetone-based total-etch adhesive vs Calcium hydroxide (CH)

Radiological failure · Children with extensive decay involving the dental pulp in primary teeth

It is very uncertain whether self-etch adhesive + acetone-based total-etch adhesive changes radiological failure compared with calcium hydroxide (CH) (very low certainty).

1 finding from 1 review

Selective pressure final-impression technique (two stage-two step, silicone elastomer) vs Traditional technique (redistributing pressure) and control technique (relatively mucostatic standard procedure)

Participant preference for dentures · Completely edentulous people
1 finding from 1 review

5.9% HP strip vs 5.9% HP paint-on gel

Tooth whitening - reported by the patient · Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline shade)

It is very uncertain whether 5.9% HP strip changes tooth whitening - reported by the patient compared with 5.9% HP paint-on gel (very low certainty).

1 finding from 1 review

EMP + CAF vs SCTG + CAF

Sites with complete root coverage · Adult patients with single (localised) recession-type defects (Miller Class I/II, at least 3 mm)

It is very uncertain whether EMP + CAF changes sites with complete root coverage compared with SCTG + CAF (very low certainty).

1 finding from 1 review

Activator functional appliance vs Prefabricated functional myobrace appliance (PFA)

Final overjet · Adolescents (age 12 to 16 years) receiving orthodontic treatment to correct prominent upper front teeth (Class II malocclusion)

Activator functional appliance showed no clear difference in final overjet compared with prefabricated functional myobrace appliance (PFA); GRADE not reported.

1 finding from 1 review

4% articaine, 1:100,000 epinephrine vs 2% mepivacaine, 1:100,000 epinephrine

Success of local anaesthesia (soft tissue, self-reported; 100% success in all studies) · Participants of any age and gender undergoing dental procedures, and volunteers who took part in simulated scenario studies in which…

It is very uncertain whether 4% articaine, 1:100,000 epinephrine changes success of local anaesthesia (soft tissue, self-reported) compared with 2% mepivacaine, 1:100,000 epinephrine (very low certainty).

1 finding from 1 review