evidencegaps
Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

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

Sort:Best matchNewestHighest certaintyDownload CSV
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%

Occlusal splint vs No treatment or placebo (non-occlusal or transparent-foil placebo splint)

Recurrence · People with temporomandibular disorders (TMD)

The review found no eligible studies for this question.

1 finding from 1 review
  • Occlusal interventions for managing temporomandibular disorders 2024 · Cochrane All outcomes
    Listed in Summary of findings 1 as 'Not reported'; this outcome was not reported by any included study for this comparison. Recurrence rate was not reported in any included study across the whole review.
    0 studies
    No studies found

Occlusal splint vs Physical therapy (ultrasound, exercise, sensorimotor training, laser, TENS, manual therapy)

Muscle pain at rest · People with temporomandibular disorders (TMD)

It is very uncertain whether occlusal splint changes muscle pain at rest compared with physical therapy (ultrasound, exercise, sensorimotor training,… (very low certainty).

1 finding from 1 review

Extraction of the mandibular permanent first molar vs Not applicable (single-group prevalence)

Rotation of the mandibular second permanent molar · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)

After mandibular first molar extraction, the second molar was rotated in about 77% of cases (2 studies; very imprecise; not GRADE-rated).

1 finding from 1 review

Second molar at Demirjian stage E at extraction vs Second molar at Demirjian stage F-H at extraction

Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)

In the mandible, extraction at Demirjian stage E (vs later F-H) increases odds of space closure (OR 3.81; low certainty).

1 finding from 1 review

Dental crowding present vs Dental spacing present

Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)

One study found space closure more likely with crowding than spacing (OR 5.9; single study; not GRADE-rated).

1 finding from 1 review

Occlusal splint vs No treatment or placebo (non-occlusal or transparent-foil placebo splint)

Self-reported joint pain when chewing · People with temporomandibular disorders (TMD)

It is very uncertain whether occlusal splint changes self-reported joint pain when chewing compared with no treatment or placebo (non-occlusal or transparent-foil placebo… (very low certainty).

1 finding from 1 review

Occlusal splint vs Another occlusal splint with a different mechanism of action

Participant satisfaction or quality of life · People with temporomandibular disorders (TMD)

Occlusal splint led to lower participant satisfaction or quality of life compared with another occlusal splint with a different mechanism of action; GRADE not reported.

1 finding from 1 review

Occlusal splint vs Physical therapy (ultrasound, exercise, sensorimotor training, laser, TENS, manual therapy)

Somatisation · People with temporomandibular disorders (TMD)

Occlusal splint showed no clear difference in somatisation compared with physical therapy (ultrasound, exercise, sensorimotor training,…; GRADE not reported.

1 finding from 1 review

Cleft lip and/or palate (CL/P) vs No cleft lip and/or palate (non-CL/P)

Streptococcus mutans count · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)

No difference in mean Streptococcus mutans presence was reported; GRADE was not reported.

1 finding from 1 review

Extraction of the mandibular permanent first molar vs Not applicable (single-group prevalence)

Rotation of the mandibular first premolar · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)

After mandibular first molar extraction, the first premolar was rotated in about 38% of cases (2 studies; very imprecise; not GRADE-rated).

1 finding from 1 review

Second molar at Demirjian stage A-D at extraction vs Second molar at Demirjian stage F-H at extraction

Spontaneous space closure · Children and adolescents with maxillary permanent first molar extraction

In the maxilla, M2 Demirjian stages A-D were not associated with a statistically significant difference in space closure odds.

1 finding from 1 review

Non-syndromic cleft lip and palate (CLP) status and its oral microbiota (exposure/grouping) vs Children and adolescents aged 0-18 years without CLP (controls)

Periodontal conditions (gingival inflammation, bleeding on probing, probing depth, clinical attachment loss) · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)

Narrative synthesis of 6 studies suggests children/adolescents with CLP have poorer periodontal status (higher gingival and plaque indices, deeper probing, more bleeding and attachment loss) and harbor periodontopathogens; no pooled estimate and the evidence is ungraded.

1 finding from 1 review