Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,032 questions · 3,358 findings · 190 reviews · related questions CL0289

No studies found 599 · 17.8%GRADE not reported 1,759 · 52.4%Very low 612 · 18.2%Low 269 · 8%Moderate 107 · 3.2%High 12 · 0.4%

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

Postoperative pain during the immediate recovery period (VAS 0 to 10) · Adults (>16 years old) undergoing orthognathic surgery

It is very uncertain whether resorbable (bioresorbable) plates or screws for fixation changes postoperative pain during the immediate recovery period (VAS 0 to 10) compared with titanium plates or screws for fixation (very low certainty).

1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Discomfort/pain · 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

Amifostine (intravenous) vs Amifostine (subcutaneous)

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

Amifostine (intravenous) showed no clear difference in locoregional tumour control compared with amifostine (subcutaneous); GRADE not reported.

1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Aesthetics: canine rated as abnormal position in the dental arch · 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 aesthetics: canine rated as abnormal position in the dental arch compared with closed surgical exposure; GRADE not reported.

1 finding from 1 review

Pilocarpine vs no treatment/placebo

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

Pilocarpine led to lower xerostomia (objective, LENT-SOMA scale) compared with no treatment/placebo; GRADE not reported.

3 findings from 1 review

Zinc vs placebo

Taste acuity improvement - objective outcome (continuous) - individual taste sensations · Patients with taste disturbances (dysgeusia/hypogeusia; idiopathic, zinc-deficient, or secondary to chronic renal failure)

Zinc supplements (zinc sulphate, zinc gluconate, zinc picolinate,… showed no clear difference in taste acuity improvement - objective outcome (continuous) -… compared with placebo; GRADE not reported.

1 finding from 1 review
  • Interventions for managing taste disturbances 2017 · Cochrane All outcomes
    Chronic renal failure
    Results (Mahajan 1980, chronic renal failure; Analysis 1.3): mean difference by taste sensation - salt MD 285 (95% CI 238.75 to 331.25); sweet MD 190 (142.36 to 237.64); sour MD 10 (-16.43 to 36.43); bitter MD 2.40…
    1 study · 22 participants
    GRADE not reported

NSAID (systemic) vs paracetamol

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)

NSAID (systemic) showed no clear difference in pain intensity (VAS 0-100 mm) compared with paracetamol (low certainty).

3 findings from 1 review

Amifostine vs no treatment/placebo

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

Amifostine may leads to lower xerostomia (grade >= 2, 0-4 scale) compared with no treatment/placebo (low certainty).

3 findings from 1 review

Analgesic (any: NSAID, paracetamol, local anaesthetic or opioid) vs placebo or control

Rescue analgesia · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)
1 finding from 1 review

Polaprezinc vs Azulene oral rinse

Taste disturbance (severe, > 2 on 0-3 scale) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Polaprezinc led to lower taste disturbance (severe, > 2 on 0-3 scale) compared with azulene oral rinse; GRADE not reported.

1 finding from 1 review

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

Abutment failure · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown

It is very uncertain whether metal-free implant abutments (zirconia) changes abutment failure compared with metal implant abutments (titanium) (very low certainty).

1 finding from 1 review

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

Decalcification · 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 decalcification (participant level) compared with molar bands (cemented, e.g. with glass ionomer cement); GRADE not reported.

1 finding from 1 review

G‐CSF vs placebo or no treatment

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

Granulocyte-colony stimulating factor (G-CSF) led to lower oral mucositis (any severity) compared with placebo or no treatment; GRADE not reported.

2 findings from 1 review

Antimicrobial lozenge vs placebo

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

Antimicrobial lozenge showed no clear difference in xerostomia compared with placebo; GRADE not reported.

1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Patient response: total discomfort score (pain, difficulty eating, brushing, speaking, bad taste) · 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 patient response: total discomfort score (pain, difficulty eating,… compared with closed surgical exposure; GRADE not reported.

1 finding from 1 review