Science1 publisher3 min readPublished Updated
Liverpool street sex workers describe teeth that still mark them after detox
Twenty-one women interviewed in Liverpool tied repairing damaged teeth to leaving drugs and sex work behind. The study documents that priority clearly, but nobody was followed after treatment, so the benefit itself was never measured.
The Scientist · Science desk

What happened
- Researchers interviewed 21 women doing street sex work in Liverpool, recruited through community support services, about their oral health needs, experiences and priorities.
- Women reported that after detoxing from drugs, the state of their teeth still led other people to assume they were currently using.
- The care routes they had actually reached were a dental bus run by the charity Dentaid and dental treatment received in prison.
- A 2024 clinical study comparing 40 female sex workers with 40 people of similar age and sex found substantially more missing teeth and decay among the sex workers.
Compiled by The ScientistSomething wrong?How this is made
Why it matters
- constraint Because no participant was free of either drug use or unstable housing, the design cannot rank causes, so using it to argue that drug use is the dominant driver of the damage goes past what the data can carry.
- decision Anyone funding dentistry for this group is choosing between the pain and the marker: emergency clinics settle abscesses, and only repair or replacement touches the appearance the women said kept their past visible.
- exposure Discharging patients who miss appointments removes care from exactly the people whose crises produce missed appointments, leaving pain to be managed outside a surgery.
The route to a broken tooth, as the women told it, has several channels running at once. Some said heroin made them crave sugar; others described the dry mouth that comes with crack cocaine or methadone [8]. Brushing could be forgotten during heavy use, and those who had already lost several teeth described a sense that there was little point keeping up with the rest [9]. Vomiting and violence sit in the same accounts [8], and before any of it, childhoods in which families dealing with more immediate needs left brushing and dental appointments unattended [7]. None of that runs against the wider literature, which links substance-use disorders to more decay and gum disease, and repeated vomiting to eroded enamel [10].
Ranking those channels is beyond this design, and the authors do not try. Every one of the 21 women was using at least one drug and living in temporary accommodation at the time of the research, so both exposures cover 100% of the sample [21], and there is nobody inside the study lacking one of them to compare against somebody who has it. The same is true of insecure housing, violence, mental ill health and earlier neglect, which the authors describe as part of the same circumstances [4]. The method was interviews plus artwork the participants helped interpret and refine [2], built to surface what people think matters rather than to estimate effects. The 2024 clinical comparison the authors cite does have a control group, and even there they say plainly that neither it nor a systematic review of international research can show that sex work itself caused the differences [14][15].
What the interviews carry well is what the damage costs. Dental appearance invited assumptions about both drug use and sex work, each reinforcing the other [12], and several women tied restoring their teeth to stopping drug use, leaving street sex work and rebuilding family relationships [6]. Whether restoration actually changes anyone's odds of leaving is a separate question this study cannot answer. Survival-based sex work, as the authors define it, means selling sex during acute hardship, when someone has few realistic alternatives for meeting an immediate need such as food, drugs or somewhere to stay [23]; no one was followed after dental treatment, and the connection is one the women drew themselves. That amounts to strong evidence about priorities, drawn from what the women said, with outcomes left unmeasured.
Meanwhile the clinical urgency was real: teeth breaking and crumbling, abscesses, persistent pain, one woman saying teeth had fallen into her hand, another filing down a sharp broken tooth with a nail file because it was cutting her tongue [11]. Almost all the women still described serious difficulty obtaining care, with waiting lists, treatment costs, travelling distances and fear of treatment stopping them from starting or continuing [16]. When the pain became unbearable, some used drugs to manage it and some tried to treat the tooth themselves [18].
The stigma account is consistent and specific across these interviews; the claim that dental restoration helps a woman leave street sex work is plausible and untested. Funding only urgent care will reliably reduce pain, and will leave the visible marker in place after the drug use stops [5].
What to watch
- A prospective study that follows women through restorative treatment and reports drug use and sex work involvement afterwards would turn a stated priority into a measured outcome.
- Whether commissioners extend mobile and prison provision past extraction and pain relief into repair and replacement of missing teeth.
- A larger replication of the 40-versus-40 comparison, with samples big enough to adjust for drug use and housing instability.