Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,411 questions · 5,986 findings · 226 reviews · Oral Health

No studies found 1,305 · 21.8%GRADE not reported 2,988 · 49.9%Very low 1,030 · 17.2%Low 476 · 8%Moderate 156 · 2.6%High 31 · 0.5%

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GM-CSF vs placebo or no treatment

Oral mucositis (any severity) · Adults with cancer receiving treatment

Granulocyte-macrophage colony-stimulating factor (GM-CSF) showed no clear difference in oral mucositis (any severity) compared with placebo or no treatment; GRADE not reported.

2 findings from 1 review

Chinese medicine vs no treatment/placebo

Salivary flow rate (stimulated) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Chinese medicine led to higher salivary flow rate (stimulated) compared with no treatment/placebo; GRADE not reported.

1 finding from 1 review

ART using composite resin vs Conventional treatment using composite resin

Participant experience (dental anxiety) · Children with carious primary teeth

ART using composite resin showed no clear difference in participant experience (dental anxiety) compared with conventional treatment using composite resin; GRADE not reported.

1 finding from 1 review

Keratinocyte growth factor (KGF; palifermin or repifermin), intravenous vs placebo

Xerostomia (grade >= 2, 0-4 scale) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Palifermin showed no clear difference in xerostomia (grade >= 2, 0-4 scale) compared with placebo (low certainty).

1 finding from 1 review

Metal-free implant abutments (zirconia) vs Metal implant abutments (titanium)

Marginal bone level change · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown

Metal-free implant abutments (zirconia) showed no clear difference in marginal bone level change (MBLC) compared with metal implant abutments (titanium); GRADE not reported.

2 findings from 1 review

Metal-free implant-supported FDPs (zirconia-toughened alumina; In-Ceram Zirconia) vs Metal-free implant-supported FDPs (yttria-stabilized tetragonal zirconia; Denzir)

Bridge complications · Adults (18 years or older) needing an implant-supported fixed dental prosthesis in the posterior region

It is very uncertain whether metal-free implant-supported FDPs (zirconia-toughened alumina;… changes bridge complications compared with metal-free implant-supported FDPs (yttria-stabilized tetragonal… (very low certainty).

4 findings from 1 review
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Periodontal treatment (scaling and root planing, polishing, or surgery), alone or with oral hygiene counselling, antiseptics, or antimicrobials vs no treatment

Gestational age (preterm birth < 37 weeks) · Pregnant women considered to have periodontal disease (gingivitis or periodontitis) after dental examination

Periodontal treatment (scaling and root planing, polishing, or… showed no clear difference in gestational age (preterm birth < 37 weeks) compared with no treatment (low certainty).

1 finding from 1 review

Antiseptic mouthrinse vs placebo

Drooling (hyposialosis) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Antiseptic mouthrinse showed no clear difference in drooling (hyposialosis) compared with placebo; GRADE not reported.

1 finding from 1 review

Zinc vs placebo

Taste discrimination improvement · Patients with taste disturbances (dysgeusia/hypogeusia; idiopathic, zinc-deficient, or secondary to chronic renal failure)
1 finding from 1 review
  • Interventions for managing taste disturbances 2017 · Cochrane All outcomes
    Results: Matson 2003 used zinc sulphate for testing taste discrimination (sip and spit method); the trial did not report the details of the placebo group and thus the results could not be meta-analysed. Not GRADE-rated.
    1 study
    GRADE not reported

Keratinocyte growth factor (KGF; palifermin or repifermin), intravenous vs placebo

Number of days in hospital · Adults with cancer receiving treatment

Keratinocyte growth factor (KGF; palifermin or repifermin),… showed no clear difference in number of days in hospital compared with placebo; GRADE not reported.

1 finding from 1 review

Periodontal treatment (scaling and root planing, alone or with antimicrobials) vs Alternative (less intensive) periodontal treatment, alone or with placebo

Low birth weight (< 2.5 kg) · Pregnant women considered to have periodontal disease (gingivitis or periodontitis) after dental examination

It is very uncertain whether periodontal treatment (scaling and root planing, alone or with… changes low birth weight < 2500 g compared with alternative (less intensive) periodontal treatment, alone or with… (very low certainty).

1 finding from 1 review

GM-CSF vs placebo or no treatment

Oral mucositis (severe) · Adults with cancer receiving treatment

Granulocyte-macrophage colony-stimulating factor (GM-CSF) showed no clear difference in oral mucositis (severe) compared with placebo or no treatment (low certainty).

3 findings from 1 review

Pilocarpine vs no treatment/placebo

Quality of life (McMaster HNRQ, 1-7 scale) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

It is very uncertain whether pilocarpine changes quality of life (McMaster HNRQ, 1-7 scale) compared with no treatment/placebo (very low certainty).

1 finding from 1 review

Resorbable (bioresorbable) plates or screws for fixation vs Titanium plates or screws for fixation

Clinical stability of osteotomy segments (VAS 0 to 10) · Adults (>16 years old) undergoing orthognathic surgery
1 finding from 1 review
  • Resorbable versus titanium plates for orthognathic surgery 2017 · Cochrane All outcomes
    0 to 24 months (by period)
    Clinical stability of osteotomy segments (Cheung 2004), self-assessed on a VAS (0=very mobile, 10=no mobility) by postoperative period, titanium vs resorbable mean (SD): 0 to 2 weeks 8.10 (1.79) vs 8.47 (2.18), P=0.48;…
    1 study · 60 participants
    GRADE not reported

High-viscosity glass-ionomer ART restorations vs Amalgam restoration

Restoration failure (primary dentition) · Children with carious primary teeth

ART using H-GIC showed no clear difference in restoration failure (primary teeth) compared with conventional treatment using amalgam; GRADE not reported.

1 finding from 1 review

Metal-free cantilevered FDPs (feldspathic-veneered zirconia) vs Metal-ceramic cantilevered FDPs

Plaque · Adults (18 years or older) needing replacement of one premolar or incisor with a cantilevered fixed dental prosthesis

Metal-free cantilevered FDPs (feldspathic-veneered zirconia) showed no clear difference in plaque index (PI) compared with metal-ceramic cantilevered FDPs; GRADE not reported.

1 finding from 1 review