What do systematic reviews say?

Horizontal bone augmentation (any technique) vs No augmentation

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: horizontal and vertical bone augmentation techniques for dental implant… 2009 · Cochrane All outcomes

  At least to abutment connection (planned)
  No trial evaluated whether horizontal bone augmentation is necessary (explicit gap)
  0 studies
  No studies found

Any denture cleansing method (mechanical or chemical) vs Another therapy, placebo, or no treatment

The review found no eligible studies for this question.

• Interventions for cleaning dentures in adults 2009 · Cochrane All outcomes
  Noticeable absence of reports about costs of materials associated with denture cleansing methods; no included study assessed costs (Discussion; Implications for research).
  0 studies
  No studies found

Any denture cleansing method (mechanical or chemical) vs Another method, sham/placebo, or no treatment

• Interventions for cleaning dentures in adults 2009 · Cochrane All outcomes
  Although six RCTs were included in this review, the wide range of different interventions and outcome variables did not permit pooling of data in a meta-analysis. Isolated reports indicated that chemicals and brushing…
  6 studies
  GRADE not reported

Any denture cleansing method (mechanical or chemical) vs Another therapy, placebo, or no treatment

The review found no eligible studies for this question.

• Interventions for cleaning dentures in adults 2009 · Cochrane All outcomes
  Noticeable absence of reports about adverse effects; no included study assessed the extent of adverse effects (for example the aftertaste of sodium hypochlorite, or mechanical or chemical damage to denture materials)…
  0 studies
  No studies found

Any denture cleansing method (mechanical or chemical) vs Another method, sham/placebo, or no treatment

The review found no eligible studies for this question.

• Interventions for cleaning dentures in adults 2009 · Cochrane All outcomes
  No included study assessed removable partial denture (RPD) wearers; all six included trials assessed complete denture wearers (Discussion; Implications for research: 'No included study assessed removable partial…
  0 studies
  No studies found

Any attachment system for maxillary implant overdentures vs A different attachment system for maxillary implant overdentures

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes
  no estimate extracted
  Studies not reported
  No studies found

Zygomatic implants without bone grafts (as a complete alternative to any bone augmentation procedure) vs Conventional dental implants in augmented maxillae

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: dental implants in zygomatic bone for the rehabilitation of the severely… 2013 · Cochrane All outcomes

  At least 1 year in function
  Results (Effects of interventions): we could not identify any eligible randomised controlled trials (RCTs).
  0 studies
  No studies found

Zygomatic implants without bone grafts (as a complete alternative to any bone augmentation procedure) vs Conventional dental implants in augmented maxillae

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: dental implants in zygomatic bone for the rehabilitation of the severely… 2013 · Cochrane All outcomes

  At least 1 year in function
  Results (Effects of interventions): we could not identify any eligible randomised controlled trials (RCTs).
  0 studies
  No studies found

Zygomatic implants without bone grafts (as a complete alternative to any bone augmentation procedure) vs Conventional dental implants in augmented maxillae

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: dental implants in zygomatic bone for the rehabilitation of the severely… 2013 · Cochrane All outcomes

  At least 1 year in function
  Summary of findings 'Zygomatic implants versus conventional implants'; Prosthesis failure: Assumed risk (conventional) Low risk population 10 per 1000, High risk population 100 per 1000; Corresponding risk (zygomatic)…
  0 studies
  No studies found

Zygomatic implants without bone grafts (as a complete alternative to any bone augmentation procedure) vs Conventional dental implants in augmented maxillae

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: dental implants in zygomatic bone for the rehabilitation of the severely… 2013 · Cochrane All outcomes

  At least 1 year in function
  Results (Effects of interventions): we could not identify any eligible randomised controlled trials (RCTs).
  0 studies
  No studies found

Zygomatic implants without bone grafts (as a complete alternative to any bone augmentation procedure) vs Conventional dental implants in augmented maxillae

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: dental implants in zygomatic bone for the rehabilitation of the severely… 2013 · Cochrane All outcomes

  At least 1 year in function
  Results (Effects of interventions): we could not identify any eligible randomised controlled trials (RCTs).
  0 studies
  No studies found

1-stage (non-submerged) implant placement vs 2-stage (submerged) implant placement

1-stage (non-submerged) implant placement showed no clear difference in aesthetics evaluated by dentists (soft tissue recession) compared with 2-stage (submerged) implant placement; GRADE not reported.

• Interventions for replacing missing teeth: 1- versus 2-stage implant placement 2009 · Cochrane All outcomes

  6 to 12 months after loading
  MD -0.20 [-0.67, 0.27]
  1 study · 29 participants
  GRADE not reported

1-stage (non-submerged) implant placement vs 2-stage (submerged) implant placement

1-stage (non-submerged) implant placement showed no clear difference in prosthesis failure compared with 2-stage (submerged) implant placement (moderate certainty).

• Interventions for replacing missing teeth: 1- versus 2-stage implant placement 2009 · Cochrane All outcomes

  6 to 12 months after loading
  RR 1.87 [0.33, 10.40]
  3 studies · 153 participants
  Moderate

1-stage (non-submerged) implant placement vs 2-stage (submerged) implant placement

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: 1- versus 2-stage implant placement 2009 · Cochrane All outcomes

  6 to 12 months after loading
  Planned outcome (patient preference including aesthetics, only in split-mouth studies); no included trial reported it.
  0 studies
  No studies found

1-stage (non-submerged) implant placement vs 2-stage (submerged) implant placement

1-stage (non-submerged) implant placement showed no clear difference in radiographic marginal bone level changes compared with 2-stage (submerged) implant placement; GRADE not reported.

• Interventions for replacing missing teeth: 1- versus 2-stage implant placement 2009 · Cochrane All outcomes

  6 to 12 months after loading
  MD -0.10 [-0.40, 0.20]
  1 study · 29 participants
  GRADE not reported

1-stage (non-submerged) implant placement vs 2-stage (submerged) implant placement

1-stage (non-submerged) implant placement showed no clear difference in implant failure compared with 2-stage (submerged) implant placement (moderate certainty).

• Interventions for replacing missing teeth: 1- versus 2-stage implant placement 2009 · Cochrane All outcomes

  6 to 12 months after loading
  RR 1.39 [0.59, 3.27]
  4 studies · 230 participants
  Moderate

1-stage (non-submerged) implant placement vs 2-stage (submerged) implant placement

1-stage (non-submerged) implant placement showed no clear difference in complications (biological and biomechanical) compared with 2-stage (submerged) implant placement; GRADE not reported.

• Interventions for replacing missing teeth: 1- versus 2-stage implant placement 2009 · Cochrane All outcomes

  6 to 12 months after loading
  RR 0.13 [0.01, 2.25]
  1 study · 30 participants
  GRADE not reported