This paper reports the findings of a grounded theory study investigating drug users' concerns and experiences of their oral health. The aim of this paper is to demonstrate how the findings relate to various strands of literature which focus on processes and discourses of recovery from problematic drug use (biographical reconstruction), the chronic illness literature (biographical disruption), public/private discourses and the myth of addiction. Data were collected from four focus groups containing a total of 25 participants, and 15 in-depth interviews. Participants were recruited from drug detoxification programmes (27), recovery units following detoxification (9) and a drug rehabilitation unit (4). Data analysis revealed that the core concern of drug users' was talking about the 'entangled' nature of their identity whilst they were on drugs. Such 'entangled identities' emerged through what appeared to be a gradual sedimentation process of drug-using habits and routines that replaced those of the everyday self. Other concerns were distancing one's self from the drug using self (involving expressions of disgust) and recovery processes (disentangling). The paper discusses each of these core problems in the light of the literature on the recovery from drug use, the chronic illness literature and the myth of addiction. It concludes by briefly reflecting on problematic psychotropic substance use as another form of biographical disruption formed on the basis of a dialectic between private discourses of the entangled self and public discourses of addiction. It suggests that further work should be conducted in these areas.