Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

29 questions · 29 findings · 7 reviews · Oral and maxillofacial surgery

No studies found 4 · 13.8%GRADE not reported 25 · 86.2%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Arthroscopy vs open surgery

Interincisal opening over 35 mm (clinical evaluation, 12 months) · Adults (older than 18 years) with a temporomandibular disorder (synovitis, disc displacement with or without reduction, myofascial…

Arthroscopy showed no clear difference in interincisal opening over 35 mm (clinical evaluation, 12 months) compared with open surgery; GRADE not reported.

1 finding from 1 review

Open reduction and fixation vs Closed (conservative) management (no active intervention other than soft diet, analgesics or antibiotics; or intermaxillary/maxillary-mandibular fixation with rigid or elastic traction)

Outcome not reported · Adults, over 18 years of age, with unilateral or bilateral fractures of the mandibular condyles

The review found no eligible studies for this question.

1 finding from 1 review

Open (surgical) reduction and fixation vs Closed (non-surgical) treatment

Outcome not reported · Adults (16 to 68 years) with mandibular fractures excluding condylar involvement

The review found no eligible studies for this question.

1 finding from 1 review
  • "There were no studies comparing different types of closed interventions with one another or comparing open and closed interventions." "We found no studies that compared surgical with non-surgical treatments."
    0 studies
    No studies found

Open TMJ surgery (arthroplasty / total joint replacement)

Outcome not reported · Adults (>18 years) with temporomandibular joint osteoarthritis (TMJ OA) diagnosed by RDC/TMD or compatible criteria

The review found no eligible studies for this question.

1 finding from 1 review

Summary of findings: Fibrin sealant vs Conventional (simple interrupted) suturing

Trismus / maximum mouth opening (mean) · Adults with mandibular third molars requiring removal

Fibrin sealant led to higher trismus / maximum mouth opening (mean) compared with conventional suturing; GRADE not reported.

1 finding from 1 review

Drain use vs No drain

Maximal mouth opening (interincisal distance) · Adults with mandibular third molars requiring removal

Surgical drain (tube or gauze) led to higher maximum mouth opening (mean) compared with no drain; GRADE not reported.

1 finding from 1 review

Primary (complete) wound closure vs Secondary (partial) wound closure

Maximal mouth opening (interincisal distance) · Adults with mandibular third molars requiring removal

Primary (complete) wound closure showed no clear difference in maximum mouth opening (mean) compared with secondary (partial) wound closure; GRADE not reported.

1 finding from 1 review

Piezoelectric bone removal vs Conventional rotary handpiece

Trismus / maximum mouth opening (mean) · Adults with mandibular third molars requiring removal

Piezoelectric bone removal led to higher trismus / maximum mouth opening (mean) compared with conventional rotary handpiece; GRADE not reported.

1 finding from 1 review

Transbuccal miniplate combined with intraoral approach vs Intraoral approach alone

Restoration of function (malocclusion; interincisor mouth opening) · Adults with fractures of the mandibular angle
1 finding from 1 review
  • Interventions for the management of mandibular fractures 2013 · Cochrane All outcomes
    3 months · Angle of mandible only
    Persistent malocclusion was minimal, reported in one participant in each group at the 3-month follow-up. Mean interincisor mouth opening at 3 months 37.68 mm (range 17 to 50) combined approach vs 38.19 mm (range 22 to…
    1 study
    GRADE not reported

Glucosamine sulfate (oral) vs ibuprofen

Maximum voluntary jaw opening (mm), change from baseline · Adults (>18 years) with temporomandibular joint osteoarthritis (TMJ OA) diagnosed by RDC/TMD or compatible criteria

Glucosamine sulfate (oral) showed no clear difference in maximum voluntary jaw opening (mm), change from baseline compared with ibuprofen (oral); GRADE not reported.

1 finding from 1 review

Intra-articular injection of sodium hyaluronate vs corticosteroid injection

Extent of mandibular movement (maximum jaw opening, lateral and contralateral movement, jaw protrusion) · Adults (>18 years) with temporomandibular joint osteoarthritis (TMJ OA) diagnosed by RDC/TMD or compatible criteria

Intra-articular injection of sodium hyaluronate showed no clear difference in extent of mandibular movement (maximum jaw opening, lateral and… compared with intra-articular injection of corticosteroids (betamethasone); GRADE not reported.

1 finding from 1 review
  • Interventions for managing temporomandibular joint osteoarthritis 2012 · Cochrane All outcomes
    14 days to 6 months
    None of the mean differences between interventions for the measures of jaw movements (maximum jaw opening, lateral movement to affected side, contralateral movement, jaw protrusion; Analyses 1.16-1.27) showed…
    1 study · 40 participants
    GRADE not reported

Glucosamine sulfate (oral) vs ibuprofen

Pain-free maximum jaw opening (mm), change from baseline · Adults (>18 years) with temporomandibular joint osteoarthritis (TMJ OA) diagnosed by RDC/TMD or compatible criteria

Glucosamine sulfate (oral) showed no clear difference in pain-free maximum jaw opening (mm), change from baseline compared with ibuprofen (oral); GRADE not reported.

1 finding from 1 review

Arthroscopy vs Arthrocentesis

Maximal mouth opening (interincisal distance) · Adults (older than 18 years) with a temporomandibular disorder (synovitis, disc displacement with or without reduction, myofascial…

Arthroscopy led to higher maximum interincisal opening (mm) after 12 months compared with arthrocentesis; GRADE not reported.

1 finding from 1 review

Arthrocentesis and lavage vs Arthroscopy

Trismus / maximum mouth opening (mean) · Adults with temporomandibular joint disorders (internal derangement; anterior disc displacement with or without reduction) whose symptoms…

Arthrocentesis and lavage led to lower maximum incisal (mouth) opening (MIO) compared with arthroscopy; GRADE not reported.

1 finding from 1 review

Stabilisation splint (SS) vs Non-occluding splint

Movement (increase in maximal mouth opening) · Patients with pain dysfunction syndrome (PDS) of all degrees of severity

Stabilisation splint (SS) showed no clear difference in movement (increase in maximal mouth opening) compared with non-occluding splint; GRADE not reported.

1 finding from 1 review

Stabilisation splint (SS) vs relaxation

Maximal mouth opening (interincisal distance) · Patients with pain dysfunction syndrome (PDS) of all degrees of severity
1 finding from 1 review