What do systematic reviews say?

Enzyme cleanser vs Placebo / sham solution

Enzyme cleanser led to lower improvement on denture cleanliness (caregivers' opinion) compared with placebo / sham solution; GRADE not reported.

• Interventions for cleaning dentures in adults 2009 · Cochrane All outcomes

  12 weeks
  After 12 weeks using an enzyme denture cleanser ('E'), 8 of 18 caregivers perceived some improvement in CD cleanliness. After using a placebo solution ('Plac'), only 2 of 17 perceived some improvement (Analysis 1.1,…
  1 study · 35 participants
  GRADE not reported

Ultrasound during vertical distraction osteogenesis vs Placebo (no ultrasound) during vertical distraction

Ultrasound during vertical distraction osteogenesis showed no clear difference in distraction distance (bone gain, mm) compared with placebo (no ultrasound) during vertical distraction; GRADE not reported.

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

  2 years post-loading
  Distraction distance 4.6 mm (ultrasound) vs 5.8 mm (placebo); difference 1.2 mm not statistically significant, in favour of placebo; data not shown (Schortinghuis 2008)
  1 study · 9 participants
  GRADE not reported

Enzyme cleanser vs Placebo / sham solution

• Interventions for cleaning dentures in adults 2009 · Cochrane All outcomes

  5 weeks; 3 months
  Both interventions reduced biofilm scores after 2 weeks. However, plaque scores were significantly lower for 'E' after 5 weeks (P < 0.05) and 3 months (P < 0.01), as assessed by Chi2 test. It was not possible to…
  1 study
  GRADE not reported

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

Ultrasonic treatment or microwave disinfection device 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
  The effectiveness of ultrasonic or microwave devices as an intervention for routine use was not studied according to a randomised controlled trial design (Implications for research).
  0 studies
  No studies found