Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

185 questions · 189 findings · 35 reviews

No studies found 38 · 20.1%GRADE not reported 74 · 39.2%Very low 42 · 22.2%Low 20 · 10.6%Moderate 14 · 7.4%High 1 · 0.5%

Arthrocentesis and lavage vs Arthroscopy

Pain (VAS) · Adults with temporomandibular joint disorders (internal derangement; anterior disc displacement with or without reduction) whose symptoms…

Arthrocentesis and lavage showed no clear difference in pain (VAS) compared with arthroscopy; GRADE not reported.

1 finding from 1 review

Vertical GBR with non-resorbable titanium-reinforced barriers vs Vertical GBR with resorbable barriers supported by osteosynthesis plates

Vertical bone gain · Patients with vertically deficient posterior/anterior mandibular ridges needing implants

Vertical GBR with non-resorbable titanium-reinforced barriers showed no clear difference in vertical bone gain compared with vertical GBR with resorbable barriers supported by osteosynthesis…; GRADE not reported.

1 finding from 1 review

Vertical distraction osteogenesis vs Autogenous inlay bone graft (iliac crest)

Complications · Patients with vertically deficient posterior/anterior mandibular ridges needing implants

Vertical distraction osteogenesis showed no clear difference in complications compared with autogenous inlay bone graft (iliac crest); GRADE not reported.

1 finding from 1 review

Inlay/interposed bone graft (iliac or Bio-Oss block) + longer implants (vertical augmentation) vs Short implants (8 to 11 mm) without augmentation

Implant failure · Patients with atrophic (resorbed) mandibles needing implants

Inlay/interposed bone graft (iliac or Bio-Oss block) + longer… showed no clear difference in implant failure compared with short implants (8 to 11 mm) without augmentation; GRADE not reported.

1 finding from 1 review

Vertical distraction osteogenesis vs Autogenous onlay bone graft (mandibular ramus)

Vertical bone gain · Patients with vertically deficient posterior/anterior mandibular ridges needing implants

Vertical distraction osteogenesis showed no clear difference in vertical bone gain compared with autogenous onlay bone graft (mandibular ramus); GRADE not reported.

1 finding from 1 review

Vertical distraction osteogenesis vs Autogenous onlay bone graft (mandibular ramus)

Complication at augmentation + donor site · Patients with vertically deficient posterior/anterior mandibular ridges needing implants

Vertical distraction osteogenesis showed no clear difference in complication at augmented + donor site compared with autogenous onlay bone graft (mandibular ramus); 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

Vertical GBR with autogenous bone (retromolar) vs Vertical GBR with bone substitute (Regenaform)

Vertical bone gain · Patients with vertically deficient posterior/anterior mandibular ridges needing implants

Vertical GBR with autogenous bone (retromolar) led to higher vertical bone gain compared with vertical GBR with bone substitute (Regenaform); GRADE not reported.

1 finding from 1 review

Vertical distraction osteogenesis vs Vertical GBR with non-resorbable barriers + particulate autogenous bone

Complication at augmentation + donor site · Patients with vertically deficient posterior/anterior mandibular ridges needing implants

Vertical distraction osteogenesis showed no clear difference in complication at augmentation + donor site compared with vertical GBR with non-resorbable barriers + particulate autogenous…; GRADE not reported.

1 finding from 1 review

Arthrocentesis and lavage vs Arthroscopy

Improvement in pain (proportion of participants improved/healed) · Adults with temporomandibular joint disorders (internal derangement; anterior disc displacement with or without reduction) whose symptoms…

Arthrocentesis and lavage showed no clear difference in improvement in pain (proportion of participants improved/healed) compared with arthroscopy; GRADE not reported.

1 finding from 1 review

Direct resin composite veneer vs Indirect resin composite veneer

Pain following treatment · Patients with permanent anterior teeth with intrinsic staining suitable for laminate veneer restorations

The review found no eligible studies for this question.

1 finding from 1 review

Direct resin composite veneer vs Indirect resin composite veneer

Restoration failure · Patients with permanent anterior teeth with intrinsic staining suitable for laminate veneer restorations
1 finding from 1 review
  • Meijering 1998 (data by restoration, not pooled; no statistical analysis possible). Failures over 2-year follow-up: direct resin composite (n=69) 4 absolute and 14 relative failures; indirect resin composite (n=54) 7…
    1 study · 123 participants
    GRADE not reported

Indirect veneer with no incisal edge reduction vs Indirect veneer with incisal edge reduction (1.5 mm plus short palatal bevel)

Restoration longevity · Patients receiving indirect laminate veneer restorations on permanent anterior teeth
1 finding from 1 review

Direct resin composite veneer vs Porcelain (indirect) veneer

Restoration failure · Patients with permanent anterior teeth with intrinsic staining suitable for laminate veneer restorations
1 finding from 1 review
  • Meijering 1998 (data by restoration, not pooled; no statistical analysis possible). Failures over 2-year follow-up: direct resin composite (n=69) 4 absolute and 14 relative failures; porcelain (n=56) 0 absolute and 3…
    1 study · 125 participants
    GRADE not reported