Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,327 questions · 2,494 findings · 87 reviews · All outcomes

No studies found 450 · 18%GRADE not reported 1,487 · 59.6%Very low 385 · 15.4%Low 121 · 4.9%Moderate 50 · 2%High 1 · 0%

Altered fractionation radiotherapy (hyperfractionated and/or accelerated) vs Conventional (standard) fractionation radiotherapy

Disease-free survival · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Altered fractionation radiotherapy (hyperfractionated and/or… showed no clear difference in disease free survival compared with conventional (standard) fractionation radiotherapy; GRADE not reported.

2 findings from 1 review

Oral prazepam (benzodiazepine) vs placebo

No improvement in spontaneous TMJ pain · Adult patients aged >=18 years, clinically or radiographically diagnosed with TMD (McNeill 1997 criteria); moderate to severe pain of…

Oral prazepam (benzodiazepine) showed no clear difference in no improvement in spontaneous TMJ pain compared with placebo; GRADE not reported.

2 findings from 1 review

Human placental extract vs Disprin (aspirin/betamethasone)

Improvement in mucositis · People with cancer receiving chemotherapy or radiotherapy (or both) who have oral mucositis

Human placental extract led to higher improvement in mucositis compared with disprin (aspirin/betamethasone); GRADE not reported.

1 finding from 1 review

Relaxation and imagery training vs control (e.g. usual activities)

Average pain scores (0-100 VAS) · People with cancer receiving chemotherapy or radiotherapy (or both) who have oral mucositis

Relaxation and imagery training showed no clear difference in average pain scores (0-100 VAS) compared with control (treatment as usual); GRADE not reported.

1 finding from 1 review

'Magic' mouthwash (lidocaine, diphenhydramine, aluminium hydroxide) vs Salt and soda mouthwash

Mucositis eradicated · People with cancer receiving chemotherapy or radiotherapy (or both) who have oral mucositis

'Magic' mouthwash (lidocaine, diphenhydramine, aluminium hydroxide) showed no clear difference in mucositis eradicated compared with salt and soda mouthwash; GRADE not reported.

1 finding from 1 review

Hyaluronic acid gel (brushing) vs Chlorhexidine, 0.2% to 2% (solution or gel)

Marginal bleeding · Adults with dental implants and healthy peri-implant soft tissues at baseline

Hyaluronic acid gel (brushing) showed no clear difference in marginal bleeding compared with chlorhexidine gel (brushing); GRADE not reported.

1 finding from 1 review

Amine fluoride/stannous fluoride (AmF/SnF2) mouthwash vs Chlorhexidine mouthwash

Staining index · Adults with dental implants and healthy peri-implant soft tissues at baseline

Amine fluoride/stannous fluoride (AmF/SnF2) mouthwash showed no clear difference in staining index compared with chlorhexidine mouthwash; GRADE not reported.

1 finding from 1 review

Topical methyl salicylate (Theraflex-TMJ) vs placebo

Spontaneous masseter muscle pain (numerical graph rating scale) · Adult patients aged >=18 years, clinically or radiographically diagnosed with TMD (McNeill 1997 criteria); moderate to severe pain of…

Topical methyl salicylate (Theraflex-TMJ) led to lower spontaneous masseter muscle pain (numerical graph rating scale) compared with placebo; GRADE not reported.

1 finding from 1 review

Neutron radiotherapy vs Conventional photon radiotherapy

Disease-free survival · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Neutron radiotherapy showed no clear difference in disease free survival compared with conventional photon radiotherapy; GRADE not reported.

1 finding from 1 review

Topical methyl salicylate (Theraflex-TMJ) vs placebo

Spontaneous pain in the TMJ (VAS) · Adult patients aged >=18 years, clinically or radiographically diagnosed with TMD (McNeill 1997 criteria); moderate to severe pain of…

Topical methyl salicylate (Theraflex-TMJ) led to lower spontaneous TMJ pain (numerical graph rating scale) compared with placebo; GRADE not reported.

1 finding from 1 review

Hyperfractionated radiotherapy vs Conventional (standard) fractionation radiotherapy

Locoregional control · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Hyperfractionated radiotherapy led to lower locoregional control compared with conventional (standard) fractionation radiotherapy; GRADE not reported.

1 finding from 1 review

Accelerated radiotherapy with concomitant boost vs Conventional (standard) fractionation radiotherapy

Total mortality · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Accelerated radiotherapy with concomitant boost showed no clear difference in total mortality compared with conventional (standard) fractionation radiotherapy; GRADE not reported.

1 finding from 1 review

Oral glucosamine hydrochloride/chondroitin sulphate vs placebo

Total pain rating index (McGill Pain Questionnaire) · Adult patients aged >=18 years, clinically or radiographically diagnosed with TMD (McNeill 1997 criteria); moderate to severe pain of…

Oral glucosamine hydrochloride/chondroitin sulphate showed no clear difference in total pain rating index (McGill Pain Questionnaire) compared with placebo; GRADE not reported.

1 finding from 1 review

Oral prazepam (benzodiazepine) vs placebo

No improvement in TMJ pain during mastication · Adult patients aged >=18 years, clinically or radiographically diagnosed with TMD (McNeill 1997 criteria); moderate to severe pain of…

Oral prazepam (benzodiazepine) showed no clear difference in no improvement in TMJ pain during mastication compared with placebo; GRADE not reported.

2 findings from 1 review

Accelerated radiotherapy with concomitant boost vs Conventional (standard) fractionation radiotherapy

Disease-free survival · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…
1 finding from 1 review

Split‐course radiotherapy (8 fractions, 30 Gy) vs Accelerated radiotherapy

Locoregional control · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Split-course radiotherapy showed no clear difference in locoregional control compared with accelerated radiotherapy; GRADE not reported.

1 finding from 1 review

Gelclair vs Sucralfate and mucaine

Mucositis severity (mild to moderate) · People with cancer receiving chemotherapy or radiotherapy (or both) who have oral mucositis

Gelclair showed no clear difference in mucositis severity (mild to moderate) compared with sucralfate and mucaine; GRADE not reported.

1 finding from 1 review

Pre-operative and post-operative radiotherapy vs Post-operative radiotherapy alone

Disease-free survival · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Pre-operative and post-operative radiotherapy showed no clear difference in disease free survival compared with post-operative radiotherapy alone; GRADE not reported.

1 finding from 1 review

Oral gabapentin vs placebo

Participants' assessment of global function (VAS) · Adult patients aged >=18 years, clinically or radiographically diagnosed with TMD (McNeill 1997 criteria); moderate to severe pain of…

Oral gabapentin (anticonvulsant) showed no clear difference in participants' assessment of global function (VAS) compared with placebo; GRADE not reported.

1 finding from 1 review