Women who use an injectable progestin-only contraceptive might be at higher risk for periodontal disease, according to a study published in the Journal of Periodontology. Progestins might trigger inflammation or stimulate prostaglandin synthesis and lead to periodontitis, and women who opt for injectable contraceptives might already be at higher risk for dental diseases, the researchers said. "There are many hormonal contraceptive options out there for women to prevent or delay pregnancy, yet we have little information on how they may affect women's oral health," said lead author Susan Taichman, an assistant professor at the University of Michigan School of Dentistry.

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