Findings

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Evidence found and GRADE certainty

3,556 questions · 10,375 findings · 429 reviews · All outcomes

No studies found 1,344 · 13%GRADE not reported 6,832 · 65.9%Very low 1,228 · 11.8%Low 613 · 5.9%Moderate 290 · 2.8%High 68 · 0.7%

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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

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

Prophylaxis (teeth cleaning) and CHX or iodine-NaF solution application in the dentition of women (mothers) vs placebo

Caries presence in primary teeth · For interventions, pregnant women and mothers of infants in the first year of life; for outcomes, children up to 6 years of age

It is very uncertain whether prophylaxis (teeth cleaning) and CHX or iodine-NaF solution… changes caries presence in primary teeth compared with placebo (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

Probiotics vs placebo or control

Streptococcus mutans count · Children and/or adolescents (<18 years) without background systemic disease

Probiotics probably reduce Streptococcus mutans count versus control (MD -0.40 CFU/mL, 95%CI -0.57 to -0.24; moderate certainty).

1 finding from 1 review

Grape seed extract (GSE) and its proanthocyanidin fractions vs Untreated or vehicle control (some studies vs positive antimicrobial controls, e.g. chlorhexidine/fluoride)

Bacterial growth inhibition · Streptococcus mutans (in vitro cultures and biofilms)

Grape seed extract inhibits S. mutans growth in vitro (MIC ~0.5 mg/mL to 250 mg/mL across 5 studies; ungraded).

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

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after submucosal instrumentation (SI) vs Submucosal instrumentation (SI) alone, or SI plus placebo/sham aPDT

Pocket closure · Adults (> 18 years) with peri-implant mucositis, receiving active treatment

The review found no eligible studies for this question.

1 finding from 1 review

rs10974056 effect allele A (intron variant in GLIS3, chr9:3,889,264) vs Non-effect allele C

Dental caries · Adults from Japanese and European cohorts (present-study Japanese direct-to-consumer cohort + GLIDE consortium and UK Biobank European…

Meta-analysis identified a novel genome-wide-significant locus for dental caries at rs10974056 in GLIS3 (P=3.93E-08); ungraded.

1 finding from 1 review

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after subgingival instrumentation (SI) vs Subgingival instrumentation (SI) alone (hand or power-driven, or both), or SI plus placebo/sham aPDT

Patient satisfaction · Adults (> 18 years) with recurrent periodontitis, receiving supportive (maintenance) periodontal care

The review found no eligible studies for this question.

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

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

Started toothbrushing with fluoride toothpaste before 12 months (earlier start) vs Started after 12 months (later start)

Fluorosis (percentage prevalence in permanent teeth) · Children exposed to topical fluoride when under 6 years old; fluorosis assessed in permanent teeth at 6 to 18 years

It is very uncertain whether started toothbrushing with fluoride toothpaste before 12 months… changes fluorosis (percentage prevalence in permanent teeth) compared with started after 12 months (later start) (very low certainty).

1 finding from 1 review

Institutionalization (living in an orphanage/institution) vs Parented children living with their families

Dental caries prevalence · Institutionalized orphan children (roughly 3 to 18 years)

Institutionalized orphan children may be at higher risk of dental caries than parented children (pooled RR 1.19), but the estimate is imprecise and not statistically significant (very low certainty).

1 finding from 1 review

Silver diamine fluoride (SDF) vs Atraumatic restorative treatment (ART) with glass ionomer cement (GIC) or glass ionomer material

Caries arrest · Children and adults (with or without carious lesions)

The review found no eligible studies for this question.

2 findings from 1 review