Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

779 questions · 866 findings · 43 reviews · Oral and maxillofacial surgery

No studies found 188 · 21.7%GRADE not reported 548 · 63.3%Very low 81 · 9.4%Low 37 · 4.3%Moderate 8 · 0.9%High 4 · 0.5%

Pre-radiotherapy extraction of healthy molar teeth vs Conservative treatment (leaving the teeth in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

Patients' quality of life · Patients diagnosed with head and neck cancer planned to undergo any type of radiotherapy (external beam, intensity modulated,…

The review found no eligible studies for this question.

1 finding from 1 review

Two miniplates (transbuccal approach) vs One miniplate plus two screws (intraoral approach at external oblique ridge)

Restoration of function (malocclusion) · Adults with fractures of the mandibular angle

Two miniplates (transbuccal approach) showed no clear difference in restoration of function (malocclusion) compared with one miniplate plus two screws (intraoral approach at external…; GRADE not reported.

1 finding from 1 review

Pre-radiotherapy extraction of diseased molar teeth vs Conservative treatment (restoration of the teeth and leaving them in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

Patients' quality of life · Patients diagnosed with head and neck cancer planned to undergo any type of radiotherapy (external beam, intensity modulated,…

The review found no eligible studies for this question.

1 finding from 1 review

Pre-radiotherapy extraction of diseased molar teeth vs Conservative treatment (restoration of the teeth and leaving them in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

Overall survival · Patients diagnosed with head and neck cancer planned to undergo any type of radiotherapy (external beam, intensity modulated,…

The review found no eligible studies for this question.

1 finding from 1 review

Pre-radiotherapy extraction of healthy molar teeth vs Conservative treatment (leaving the teeth in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

Delay in start of radiation treatment · Patients diagnosed with head and neck cancer planned to undergo any type of radiotherapy (external beam, intensity modulated,…

The review found no eligible studies for this question.

1 finding from 1 review

Immediate mobilization vs 2 weeks delayed mobilization (IMF)

Average pain scores (0-100 VAS) · Adults with mandibular fractures excluding condyles (fixed with 2 mm titanium miniplates)
1 finding from 1 review
  • Pain (scale 1 to 10) was minor in both groups with no significant differences (Table 4): 6 weeks 1.55 vs 1.20; 3 months 1.00 vs 2.64; 6 months 1.30 vs 2.71 (immediate release vs IMF). 95% confidence interval not…
    1 study
    GRADE not reported

Locking plate vs 2 mm non-locking titanium plates

Drop-out rate due to protocol deviation · Adults (16 to 68 years) with mandibular fractures excluding condylar involvement
1 finding from 1 review
  • Early premature removal of IMF (from hours up to 2 weeks) was reported in 13 of the 90 participants analysed (Collins 2004); participants released their own IMF or reported that "the wires fell off".
    1 study · 90 participants
    GRADE not reported

2 mm titanium plates vs 2.5 mm bioresorbable plates

Post-operative pain (residual pain, any severity) · Adults (16 to 68 years) with mandibular fractures excluding condylar involvement

2 mm titanium plates showed no clear difference in post-operative pain (residual pain, any severity) compared with 2.5 mm bioresorbable plates; GRADE not reported.

1 finding from 1 review

Pre-radiotherapy extraction of healthy molar teeth vs Conservative treatment (leaving the teeth in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

Development of post-radiotherapy dental complications (caries, fractured teeth, periapical infection, periodontal disease, osteoradionecrosis) · Patients diagnosed with head and neck cancer planned to undergo any type of radiotherapy (external beam, intensity modulated,…

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

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

Immediate mobilization vs 2 weeks delayed mobilization (IMF)

Post-operative adverse events and complications · Adults with mandibular fractures excluding condyles (fixed with 2 mm titanium miniplates)
1 finding from 1 review
  • One wound separation and one infection in the immediate-mobilization group. Inferior alveolar nerve status (scale 1 to 3) showed no significant difference at 6 weeks (P=0.76), 3 months (P=0.87) or 6 months (P=0.99).…
    1 study
    GRADE not reported

Locking plate vs 2 mm non-locking titanium plates

Restoration of function (functional occlusion; bite force as surrogate) · Adults (16 to 68 years) with mandibular fractures excluding condylar involvement
1 finding from 1 review
  • Functional occlusion was achieved in all participants in both intervention groups (Agarwal 2011); the measurement of this outcome was not clearly reported. Bite force was reported as a surrogate/proxy outcome.
    1 study
    GRADE not reported

One microplate plus one miniplate vs Two miniplates

Efficacy and stability of fixation (bite force) · Adults with isolated mandibular fractures in the interforaminal region
1 finding from 1 review
  • Only one study (Gupta 2012) compared one microplate in conjunction with one miniplate versus two miniplates in isolated interforaminal fractures; however, the data reported in the trial did not satisfy the review's…
    1 study
    GRADE not reported