Objective To synthesize and analyze domestic and international tools related to assessing trismus in patients with head and neck cancer,and to provide reference for the assessment.Method A systematic search was conducted in PubMed,Web of Science,CINAHL,Medline,SinoMed,C...MORE Objective To synthesize and analyze domestic and international tools related to assessing trismus in patients with head and neck cancer,and to provide reference for the assessment.Method A systematic search was conducted in PubMed,Web of Science,CINAHL,Medline,SinoMed,CNKI,Wanfang and VIP databases.References were traced...