Findings

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

Decayed or filled primary tooth surfaces 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 decayed or filled primary tooth surfaces at 5 years compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Amifostine vs no treatment/placebo

Quality of life (Patient Benefit Questionnaire, 10-point scale) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

It is very uncertain whether amifostine changes quality of life (Patient Benefit Questionnaire, 10-point scale) compared with no treatment/placebo (very low certainty).

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)

Extrinsic tooth staining (various staining 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… led to higher extrinsic tooth staining (various staining indices) compared with placebo/control mouthrinse, or no mouthrinse (mechanical oral…; GRADE not reported.

2 findings from 1 review

Bonded molar tubes (attached with adhesive) vs Molar bands (cemented, e.g. with glass ionomer cement)

First time failure at tooth level · Participants with full arch fixed orthodontic appliance(s) with molar tubes bonded to first or second permanent molars; excludes prior…

Bonded molar tubes (attached with adhesive) led to higher first time failure at tooth level compared with molar bands (cemented, e.g. with glass ionomer cement); GRADE not reported.

1 finding from 1 review

Biperiden plus pilocarpine vs no treatment

Salivary flow rate (unstimulated) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region
1 finding from 1 review

Epidermal growth factor (EGF), oral spray vs placebo

Normalcy of diet (total parenteral nutrition) · Adults with cancer receiving treatment

Epidermal growth factor (EGF), oral spray showed no clear difference in normalcy of diet (total parenteral nutrition) compared with placebo; GRADE not reported.

1 finding from 1 review

Intestinal trefoil factor (ITF), oral spray vs placebo

Oral mucositis (severe) · Adults receiving chemotherapy alone for colorectal cancer

Intestinal trefoil factor (ITF), oral spray showed no clear difference in oral mucositis (severe) compared with placebo; GRADE not reported.

1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Clinical attachment level (CAL) · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)

Open surgical exposure showed no clear difference in gum health: clinical attachment level (CAL) compared with closed surgical exposure (low certainty).

1 finding from 1 review

Metal-free single crowns (full-contour zirconia) vs Cast gold (conventional metal) single crowns

Periodontal/peri-implant status and occlusal wear (secondary outcomes) · Adults (18 years or older) needing a single crown in the molar or premolar region

The review found no eligible studies for this question.

1 finding from 1 review

Biperiden plus pilocarpine vs no treatment

Dry mouth (xerostomia) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

The review found no eligible studies for this question.

1 finding from 1 review

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

Aesthetics · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown
1 finding from 1 review
  • Primary outcome aesthetic evaluation data were reported as the frequency of distribution of the Implant Crown Aesthetic Index (ICAI); no comparative summary estimate was presented.
    2 studies · 47 participants
    Very low

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

Aesthetics evaluated by the patient · Adults (18 years or older) needing replacement of one premolar or incisor with a cantilevered fixed dental prosthesis

It is very uncertain whether metal-free cantilevered FDPs (feldspathic-veneered zirconia) changes aesthetic evaluation (patient VAS) compared with metal-ceramic cantilevered FDPs (very low certainty).

1 finding from 1 review

ART using resin-modified glass ionomer cement (RM-GIC) vs Conventional treatment using RM-GIC

Restoration failure (permanent, mature dentition; root surfaces) · Older adults with root caries in permanent (mature) teeth (mean age 75 years)

It is very uncertain whether ART using resin-modified glass ionomer cement (RM-GIC) changes restoration failure (permanent, mature dentition; root surfaces) compared with conventional treatment using RM-GIC (very low certainty).

1 finding from 1 review