Findings

What do systematic reviews say?

3 questions · 3 findings · 2 reviews · Oral Health

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No studies found 0 · 0%GRADE not reported 2 · 66.7%Very low 1 · 33.3%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Pre-operative radiotherapy (plus surgery) vs surgery

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…

Pre-operative radiotherapy (plus surgery) showed no clear difference in total mortality compared with surgery alone; GRADE not reported.

1 finding from 1 review

Interventions for the treatment of oral cavity and oropharyngeal cancer: radiotherapy 2010 · Cochrane All outcomes
HR 0.83 [0.64, 1.07]
1 study
GRADE not reported

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

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…

Pre-operative and post-operative radiotherapy showed no clear difference in total mortality compared with post-operative radiotherapy alone; GRADE not reported.

1 finding from 1 review

Interventions for the treatment of oral cavity and oropharyngeal cancer: radiotherapy 2010 · Cochrane All outcomes
HR 0.67 [0.35, 1.28]
1 study
GRADE not reported

Elective radical (comprehensive) neck dissection vs Elective selective neck dissection

Total mortality · Adults with oral cavity cancer

1 finding from 1 review

Interventions for the treatment of oral cavity and oropharyngeal cancers: surgical treatment 2023 · Cochrane All outcomes
Total mortality: 2 trials reported HR but could not be pooled (different surgical procedures); neither indicated a difference (BHNCSG 1998 HR 1.14, 0.70 to 1.86; Bier 1994 HR 0.87, 0.41 to 1.83); 252 participants (2…
2 studies · 252 participants
Very low