The objective of this study was to present the use of selfconfrontation in applied linguistics (AL) research on teachers' activities. Selfconfrontation was developed by Faïta (1997), and improved by Clot (2006) within the context of Activity Clinics. It is a device that attempts to capture the multiple discourses around an activity and enable its transformation by workers. Thus, a qualitative research approach was employed and documental analysis of theses, dissertations and papers abstracts produced in Brazil (1987 to 2011), available in the electronic site of CAPES, was performed. The results demonstrated that selfconfrontation is used in a fragmented manner in AL studies that examine teachers' activities, being primarily used for the collection of data, with little emphasis being placed on the transformation of the labor process.