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Patterns of tooth wear associated with methamphetamine use.

BACKGROUND: Methamphetamine (MAP) abuse is a significant worldwide problem. This prospective study was conducted to determine if MAP users had distinct patterns of tooth wear.

METHODS: Methamphetamine users were identified and interviewed about their duration and preferred route of MAP use. Study participants were interviewed in the emergency department of a large urban university hospital serving a geographic area with a high rate of illicit MAP production and consumption. Tooth wear was documented for each study participant and scored using a previously validated index and demographic information was obtained using a questionnaire.

RESULTS: Forty-three MAP patients were interviewed. Preferred route of administration was injection (37%) followed by snorting (33%). Patients who preferentially snorted MAP had significantly higher tooth wear in the anterior maxillary teeth than patients who injected, smoked, or ingested MAP (P = 0.005).

CONCLUSION: Patients who use MAP have distinct patterns of wear based on route of administration. This difference may be explained anatomically.

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