Findings

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Evidence found and GRADE certainty

153 questions · 212 findings · 18 reviews · Oral and maxillofacial surgery

No studies found 25 · 11.8%GRADE not reported 151 · 71.2%Very low 20 · 9.4%Low 10 · 4.7%Moderate 2 · 0.9%High 4 · 1.9%

Bilateral extraction of compromised mandibular first permanent molars vs Age- and gender-matched non-extraction controls

Lower incisor inclination (lingual tipping and retrusion) · Children (approximately 11 years or older) with compromised mandibular first permanent molars

Bilateral lower first permanent molar extraction was associated with lingual tipping and retrusion of the lower incisors in one case-control study; ungraded.

1 finding from 1 review

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

Degree of function postoperatively (mastication, swallowing, speech) · Adults over 18 years of age with fractures of the facial skeleton including the mandible, maxilla, zygoma (malar); studies on fractures of…

The review found no eligible studies for this question.

1 finding from 1 review
  • Resorbable versus titanium plates for facial fractures 2009 · Cochrane All outcomes
    Up to 3 years postoperatively
    Planned primary outcome not assessed: none of the retrieved studies met the inclusion criteria, so no data were available for analysis. Verbatim (Effects of interventions): "Although 53 studies were retrieved in our…
    0 studies
    No studies found

Minimal incision palatopharyngoplasty (MIPP) vs MIPP with additional individualised velopharyngeal surgery (pharyngeal flap or sphincter pharyngoplasty)

Instrumental assessment: nasalance score (nasometry and pressure-flow measure) · Children or adolescents aged 3 years or older with velopharyngeal insufficiency (VPI) associated with non-syndromic submucous cleft palate

The review found no eligible studies for this question.

1 finding from 1 review

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) vs paracetamol

Participant‐reported pain relief of 50% or greater · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) leads to higher proportion of patients with >50% maximum pain relief (TOTPAR) over 6… compared with paracetamol (acetaminophen) (single postoperative oral dose; 600 mg… (high certainty).

1 finding from 1 review

Combined paracetamol plus ibuprofen in a single tablet (e.g. paracetamol 1000 mg/ibuprofen 400 mg or 500/200 mg) vs Single drugs given separately (paracetamol 1000 mg or ibuprofen 400 mg)

Proportion of patients with >50% maximum pain relief (TOTPAR) over 2 hours · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…

Combined paracetamol plus ibuprofen in a single tablet (e.g.… showed no clear difference in proportion of patients with >50% maximum pain relief (TOTPAR) over 2… compared with single drugs given separately (paracetamol 1000 mg or ibuprofen 400… (moderate certainty).

1 finding from 1 review

Combined paracetamol plus ibuprofen in a single tablet (e.g. paracetamol 1000 mg/ibuprofen 400 mg or 500/200 mg) vs Single drugs given separately (paracetamol 1000 mg or ibuprofen 400 mg)

Adverse events · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…
1 finding from 1 review

Combined paracetamol plus ibuprofen in a single tablet (e.g. paracetamol 1000 mg/ibuprofen 400 mg or 500/200 mg) vs Single drugs given separately (paracetamol 1000 mg or ibuprofen 400 mg)

Participant‐reported pain relief of 50% or greater · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…

Combined paracetamol plus ibuprofen in a single tablet (e.g.… probably leads to higher proportion of patients with >50% maximum pain relief (TOTPAR) over 6… compared with single drugs given separately (paracetamol 1000 mg or ibuprofen 400… (moderate certainty).

1 finding from 1 review

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) vs paracetamol

Proportion of patients with >50% maximum pain relief (TOTPAR) over 2 hours · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) leads to higher proportion of patients with >50% maximum pain relief (TOTPAR) over 2… compared with paracetamol (acetaminophen) (single postoperative oral dose; 600 mg… (high certainty).

1 finding from 1 review

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) vs paracetamol

Patients not using rescue medication at 6 hours · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) leads to higher patients not using rescue medication at 6 hours compared with paracetamol (acetaminophen) (single postoperative oral dose; 600 mg… (high certainty).

1 finding from 1 review

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) vs paracetamol

Use of rescue medication · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) led to higher patients using rescue medication at 8 hours compared with paracetamol (acetaminophen) (single postoperative oral dose; 600 mg…; GRADE not reported.

1 finding from 1 review

Combined paracetamol plus ibuprofen in a single tablet (e.g. paracetamol 1000 mg/ibuprofen 400 mg or 500/200 mg) vs Single drugs given separately (paracetamol 1000 mg or ibuprofen 400 mg)

Patients not using rescue medication at 8 hours · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…

Combined paracetamol plus ibuprofen in a single tablet (e.g.… leads to higher patients not using rescue medication at 8 hours compared with single drugs given separately (paracetamol 1000 mg or ibuprofen 400… (high certainty).

1 finding from 1 review

Ibuprofen (single postoperative oral dose; 200 mg to 512 mg) vs paracetamol

Adverse events · Patients with pain after surgical removal of lower wisdom teeth (third molars) requiring bone removal or with baseline moderate to severe…
1 finding from 1 review

Oral paracetamol vs placebo

At least 50% reduction in pain · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… led to higher achieving at least 50% pain relief at 4 hours (using pain intensity… compared with placebo; GRADE not reported.

3 findings from 1 review

Oral paracetamol vs placebo

Patients with one or more adverse events · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… showed no clear difference in patients with one or more adverse events compared with placebo; GRADE not reported.

1 finding from 1 review

Oral paracetamol vs placebo

Participant‐reported pain relief of 50% or greater · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… led to higher achieving at least 50% pain relief at 6 hours (using pain relief… compared with placebo; GRADE not reported.

1 finding from 1 review

Genetically predicted periodontitis vs Lower genetically predicted periodontitis liability

Lumbar spine and pelvis fracture · European GWAS participants

The SVMR Weighted Median interval included the null.

3 findings from 1 review

Genetically predicted periodontitis vs Lower genetically predicted periodontitis liability

Osteoporosis · European GWAS participants

The SVMR MR-Egger interval included the null.

4 findings from 1 review
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