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Evidence found and GRADE certainty

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

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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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Chlorhexidine mouthrinse (any concentration; 0.05% to 0.2%) used in conjunction with mechanical oral hygiene procedures vs Placebo/control mouthrinse, or no mouthrinse (mechanical oral hygiene alone); controls pooled (protocol's separate comparisons versus mechanical oral hygiene alone and versus placebo/control merged)

Supragingival calculus formation (various calculus indices) · Children or adults with gingivitis or periodontitis capable of performing normal mechanical oral hygiene procedures (some with medical…

Chlorhexidine mouthrinse (any concentration; 0.05% to 0.2%) used in… showed no clear difference in supragingival calculus formation (various calculus indices) compared with placebo/control mouthrinse, or no mouthrinse (mechanical oral…; GRADE not reported.

3 findings from 1 review

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

Gingival index (GI) · 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 gingival index (GI) compared with metal-ceramic cantilevered FDPs; GRADE not reported.

1 finding from 1 review

Epidermal growth factor (EGF), oral spray vs placebo

Oral mucositis (moderate to severe) · Adults with cancer receiving treatment

Epidermal growth factor (EGF), oral spray showed no clear difference in oral mucositis (moderate to severe) compared with placebo; GRADE not reported.

2 findings from 1 review

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

Oral mucositis (any severity) · Children with acute lymphoblastic leukaemia receiving chemotherapy alone

Keratinocyte growth factor (KGF), intravenous led to lower oral mucositis (any severity) compared with chlorhexidine mouthwash; GRADE not reported.

1 finding from 1 review

Fluoride supplementation (tablets, drops, lozenges or chewing gum) vs placebo or no treatment

Fluorosis (maxillary teeth) at 5 years · Pregnant women (for preventing dental caries in the primary teeth of their children)

It is very uncertain whether fluoride supplementation (tablets, drops, lozenges or chewing gum) changes fluorosis (maxillary teeth) at 5 years compared with placebo or no treatment (very low certainty).

1 finding from 1 review

High-viscosity glass-ionomer ART restorations vs Conventional treatment using composite (with local anaesthetic)

Pain (primary dentition) · Children with carious primary teeth

ART using H-GIC showed no clear difference in pain (primary dentition) compared with conventional treatment using composite (with local anaesthetic); GRADE not reported.

1 finding from 1 review

Amifostine vs no treatment/placebo

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

Amifostine led to lower dysgeusia (grade >= 2, 0-4 scale) compared with no treatment/placebo; GRADE not reported.

1 finding from 1 review

Ibuprofen taken pre-emptively (about 1 hour before treatment) vs Ibuprofen taken post-treatment

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

It is very uncertain whether ibuprofen taken pre-emptively (about 1 hour before treatment) changes pain intensity (VAS 0-100 mm) compared with ibuprofen taken post-treatment (very low certainty).

3 findings from 1 review

Zinc supplements vs Acupuncture

Outcome not reported · Patients with taste disturbances (dysgeusia/hypogeusia; idiopathic, zinc-deficient, or secondary to chronic renal failure)

The review found no eligible studies for this question.

1 finding from 1 review
  • Interventions for managing taste disturbances 2017 · Cochrane All outcomes
    Authors' conclusions: We were unable to draw any conclusions regarding the superiority of zinc supplements or acupuncture as none of the trials compared these interventions.
    0 studies
    No studies found

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

Mean birth weight · Pregnant women considered to have periodontal disease (gingivitis or periodontitis) after dental examination
1 finding from 1 review

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

Patient satisfaction (VAS 0 to 10) · Adults (>16 years old) undergoing orthognathic surgery

It is very uncertain whether resorbable (bioresorbable) plates or screws for fixation changes patient satisfaction (VAS 0 to 10) compared with titanium plates or screws for fixation (very low certainty).

1 finding from 1 review

Granulocyte-colony stimulating factor (G-CSF; pegfilgrastim, single dose) vs Granulocyte-colony stimulating factor (G-CSF; filgrastim, multiple doses)

Normalcy of diet (total parenteral nutrition) · Children receiving bone marrow/stem cell transplantation after conditioning therapy for mixed cancers

Granulocyte-colony stimulating factor (G-CSF; pegfilgrastim, single… showed no clear difference in normalcy of diet (total parenteral nutrition) compared with granulocyte-colony stimulating factor (G-CSF; filgrastim, multiple…; GRADE not reported.

1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Complications or adverse effects · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)
1 finding from 1 review

Chlorhexidine mouthrinse (any concentration; 0.05% to 0.2%) used in conjunction with mechanical oral hygiene procedures vs Placebo/control mouthrinse, or no mouthrinse (mechanical oral hygiene alone); controls pooled (protocol's separate comparisons versus mechanical oral hygiene alone and versus placebo/control merged)

Gingivitis · Children or adults with gingivitis or periodontitis capable of performing normal mechanical oral hygiene procedures (some with medical…

Chlorhexidine mouthrinse (any concentration; 0.05% to 0.2%) used in… leads to lower gingivitis (gingival inflammation) measured by Gingival Index of Loe… compared with placebo/control mouthrinse, or no mouthrinse (mechanical oral… (high certainty).

2 findings from 1 review

Fluoride supplementation (tablets, drops, lozenges or chewing gum) vs placebo or no treatment

Caries in primary teeth: dmft (3 years) · Pregnant women (for preventing dental caries in the primary teeth of their children)

The review found no eligible studies for this question.

1 finding from 1 review

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

Overall survival · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Palifermin showed no clear difference in overall survival compared with placebo (moderate certainty).

1 finding from 1 review

Topical NSAID (ketoprofen lysinate mouthwash, 160 mg) vs Topical NSAID (benzidamine hydrochloride mouthwash, 22.5 mg)

Failure to complete orthodontic treatment due to pain · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

The review found no eligible studies for this question.

1 finding from 1 review