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Evidence found and GRADE certainty

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

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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%

Orthodontic removable traction appliance (ORTA) vs no intervention

ANB · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Orthodontic removable traction appliance (ORTA) led to higher ANB compared with untreated control (no treatment); GRADE not reported.

1 finding from 1 review

Facemask with rapid maxillary expansion (RME) vs Mini maxillary protractor

ANB · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Facemask with rapid maxillary expansion (RME) led to lower ANB compared with mini maxillary protractor; GRADE not reported.

1 finding from 1 review

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

Tongue depressor stretches (physiotherapy) vs Intralesional steroid plus hyaluronidase injections

Maximal mouth opening (interincisal distance) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

It is very uncertain whether tongue depressor stretches (physiotherapy) changes maximal mouth opening (interincisal distance) compared with intralesional steroid plus hyaluronidase injections (very low certainty).

1 finding from 1 review

Platelet-rich fibrin (PRF) graft vs Calcium hydroxide (CH)

Overall success (composite of clinical and radiographic success) · Mature permanent teeth with irreversible pulpitis and carious pulp exposure (treated with full pulpotomy)

Platelet-rich fibrin and calcium hydroxide showed no significant difference in success (ungraded; effect size not reported).

1 finding from 1 review

Antioxidants (lycopene, curcumin, Oxitard) vs Placebo or no active treatment

Difficulty in mouth opening (participant-reported proxy) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

Antioxidants (lycopene, curcumin, Oxitard) led to lower difficulty in mouth opening (participant-reported proxy) compared with placebo or no active treatment; GRADE not reported.

1 finding from 1 review

Antioxidants (lycopene, curcumin, Oxitard) vs Placebo or no active treatment

Difficulty in swallowing (participant-reported proxy) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

Antioxidants (lycopene, curcumin, Oxitard) led to lower difficulty in swallowing (participant-reported proxy) compared with placebo or no active treatment; GRADE not reported.

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

Superelastic NiTi arch wire vs Titanium-niobium-tantalum-zirconium (TiNbTaZr) arch wire

Alignment rate · People receiving orthodontic treatment with fixed appliances (upper and/or lower full arch)
1 finding from 1 review

Coated superelastic NiTi wire (BioCosmetic, Titanol, TP Aesthetic or Tooth Tone) vs A different coated superelastic NiTi wire

Alignment rate · People receiving orthodontic treatment with fixed appliances (upper and/or lower full arch)
1 finding from 1 review

Multistrand stainless steel wire vs Wires of other materials (conventional stainless steel, superelastic NiTi, thermoelastic NiTi)

Alignment rate · People receiving orthodontic treatment with fixed appliances (upper and/or lower full arch)
1 finding from 1 review
  • Initial arch wires used in orthodontic treatment with fixed appliances 2024 · Cochrane All outcomes
    6 weeks to 6 months
    Multistrand StSt versus other materials (conventional StSt, superelastic NiTi, thermoelastic NiTi); alignment rate not pooled due to clinical heterogeneity (Cobb 1998; Evans 1998; Quintao 2005; West 1995); results…
    4 studies · 281 participants
    Very low

Facemask with rapid maxillary expansion (RME) vs Reverse Twin Block with lip pads and rapid maxillary expander (RME)

Wits appraisal · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Facemask with rapid maxillary expansion (RME) led to lower wits appraisal compared with reverse Twin Block with lip pads and rapid maxillary expander (RME); GRADE not reported.

1 finding from 1 review