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. 2020 Jul 26;2020(7):CD004345. doi: 10.1002/14651858.CD004345.pub3

Xavier 2008.

Study characteristics
Methods Study design: RCT (split‐mouth)
Conducted in: Recife, Brazil
Recruitment period: May to September 2004
Participants Inclusion criteria: participants consecutively enrolled between May and September 2004 for surgical extraction of bilateral impacted lower third molars. Both wisdom teeth had to be in similar position according to Pell and Gregory classification.
Exclusion criteria: history of significant systemic pathology, or use of any medication that could interfere with the repair process
Number of participants randomised: 20
Number of participants evaluated: 20
Interventions Partial wound closure versus complete wound closure
Group A (n = 20 teeth): sutures on attached gum only
Group B (n = 20 teeth): complete suture was performed on free and attached gums
Procedures performed under local anaesthetic, both teeth extracted in same session by same surgeon.
Follow‐up: days 3, 7, and 15, and 3 months
Outcomes Pain, swelling, trismus at 7 days, probing depth 3 months postoperation
Notes Sample size calculation: not reported
E‐mail sent 29 March 2012 requesting further information. No reply received.
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk Quote: "2 groups were established on randomised basis (by allotment)"
Comment: method of sequence generation not described
Allocation concealment (selection bias) Unclear risk Not mentioned
Blinding (performance bias and detection bias)
patient Low risk Double‐blinded
Blinding (performance bias and detection bias)
assessor Low risk Double‐blinded; assumed that both participants and clinical outcome assessor blinded to treatment
Incomplete outcome data (attrition bias)
All outcomes Low risk All randomised participants included in outcome evaluation.
Selective reporting (reporting bias) Unclear risk All planned outcomes reported.
Other bias Unclear risk No other sources of bias identified.