What do systematic reviews say?

Psychological interventions vs no treatment

• Interventions for the cessation of non‐nutritive sucking habits in children 2015 · Cochrane All outcomes
  SoF (psychological interventions vs no treatment): Adverse events - insufficient information reported. Table 3 (adverse outcomes after one month; Haryett 1967), psychological treatment group: reported upset 1/11 (9%);…
  1 study
  GRADE not reported

Any of the interventions (CR, SE, SW, sealing with sealant materials, Hall Technique, or NRCC) vs Each other, placebo, or no treatment

The review found no eligible studies for this question.

• Interventions for treating cavitated or dentine carious lesions 2021 · Cochrane All outcomes
  None of the studies reported adverse effects.
  0 studies
  No studies found

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

• Interventions with pregnant women, new mothers and other primary caregivers for preventing early childhood caries 2024 · Cochrane All outcomes
  Two trials (Dasanayake 1993; Dasanayake 2002) reported adverse events related to topical application of the treatment solutions (other data).
  2 studies
  GRADE not reported

Package of oral health education/promotion including oral hygiene advice for pregnant women, mothers, infants and young children, plus dietary and feeding practice advice for infants and young children vs usual care

• Interventions with pregnant women, new mothers and other primary caregivers for preventing early childhood caries 2024 · Cochrane All outcomes
  One trial (Harrison 2012) reported observing no adverse events; other trials provided no information on adverse events.
  1 study
  GRADE not reported

Advice about a healthy diet (including breastfeeding promotion and sugar avoidance) and feeding practices (e.g. relating to bottle-feeding and sleep) for infants and young children vs usual care

• Interventions with pregnant women, new mothers and other primary caregivers for preventing early childhood caries 2024 · Cochrane All outcomes
  One trial only (Feldens 2007) provided information on adverse events and reported no events.
  1 study
  GRADE not reported

Chlorhexidine gel (0.2%, intrasocket) vs placebo or no treatment

• Local interventions for the management of alveolar osteitis (dry socket) 2022 · Cochrane All outcomes

  Follow-up: median 7 days
  No adverse events were reported. Six trials (673 participants) reported no adverse events from the use of chlorhexidine gel; one study (Rubio-Palau 2015) reported gastrointestinal discomfort (30, 18%), dizziness (10,…
  7 studies
  GRADE not reported

Chlorhexidine gel (0.2%, intrasocket) vs Chlorhexidine mouthrinse

• Local interventions for the management of alveolar osteitis (dry socket) 2022 · Cochrane All outcomes

  Follow-up: median 7 days
  No adverse events were reported in these two trials (Abu-Mostafa 2015; Hita-Iglesias 2008).
  2 studies
  GRADE not reported

Chlorhexidine rinse (0.12% and 0.2%, pre- and post-extraction) vs placebo or no treatment

• Local interventions for the management of alveolar osteitis (dry socket) 2022 · Cochrane All outcomes

  Follow-up: median 7 days
  3 trials reported no adverse events. 1 study reported adverse events (alterations in taste, bad taste, staining) in 24/62 in chlorhexidine group versus 0/40 in placebo group, Peto OR = 8.42 (95% CI 3.31 to 21.39). A…
  6 studies
  GRADE not reported

Autologous platelet‐rich plasma vs placebo or no treatment

• Local interventions for the management of alveolar osteitis (dry socket) 2022 · Cochrane All outcomes

  Follow-up: median 7 days
  No adverse events were reported in these two trials.
  2 studies
  GRADE not reported

Mechanical tongue cleaning (tongue scraper) vs No tongue cleaning

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  Adverse events: listed in the Summary of findings table but no data reported. No data were reported for adverse events.
  0 studies
  No studies found

Hinokitiol gel vs Placebo gel

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 4 weeks
  Adverse events: listed in the Summary of findings table but no data reported. No data were reported for adverse events.
  0 studies
  No studies found

Chlorhexidine + zinc acetate mouthwash vs Placebo mouthwash

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 3 months
  Adverse events: listed in the Summary of findings table but no data reported. No data were reported for adverse events.
  0 studies
  No studies found

Cetylpyridinium chloride mouthwash vs Chlorhexidine + zinc mouthwash

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  2 weeks
  Adverse events reported by Borden 2002 were not related to the interventions.
  1 study · 44 participants
  GRADE not reported

1000 mg champignon extract vs placebo

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  Adverse events: listed in the Summary of findings table but no data reported. No data were reported for adverse events.
  0 studies
  No studies found

0.05% chlorhexidine + 0.05% cetylpyridinium chloride + 0.14% zinc lactate mouthrinse vs Placebo mouthwash

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  Adverse events (Table 6). Risk with placebo mouthwash: None reported. Risk with halita mouthwash: tongue staining was seen in patients who gargled, rather than rinsed. 40 participants (1 RCT). Certainty: VERY LOW.
  1 study · 40 participants
  Very low

Chlorine dioxide + zinc mouthwash vs Placebo mouthwash

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  2 weeks
  Adverse events reported by Borden 2002 were not related to the interventions.
  1 study · 41 participants
  GRADE not reported

Halita mouthrinse vs Perio-plus mouthrinse

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 8 days
  Adverse events (Table 12). Risk with Perio-plus mouthrinse: 1 patient reported unpleasant feeling after the use of the product; there were no severe adverse events reported. Risk with halita mouthrinse: 1 patient…
  1 study · 36 participants
  Very low

Topical G32 (ayurvedic preparation) vs Chlorhexidine, 0.2% to 2% (solution or gel)

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  1 week
  Patil 2017 reported burning mucosa and drying of mouth in a few subjects using the control drug (chlorhexidine) and no adverse effects were reported in the intervention group (G32 tablets).
  1 study · 40 participants
  GRADE not reported

Zinc chloride + sodium fluoride dentifrice vs Sodium fluoride (control) toothpaste

• Interventions for managing halitosis 2019 · Cochrane All outcomes
  Payne 2011 reported 19 non-oral and 12 oral adverse effects. The oral effects were tingling sensation in lips, dry mouth or sore gums.
  1 study
  GRADE not reported

Cetylpyridinium chloride mouthwash vs Placebo mouthwash

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  2 weeks
  Adverse events reported by Borden 2002 were not related to the interventions.
  1 study · 47 participants
  GRADE not reported