Researchers studied whether adding antibiotics to surgery helps treat peri-implantitis, a gum infection around dental implants. They followed 59 patients for one year. Half received surgery plus antibiotics (amoxicillin and metronidazole), while the other half received surgery alone.
The study found that patients who received antibiotics had less bleeding when their gums were probed at 9 and 12 months after treatment. However, the antibiotics did not lead to significant improvements in other key outcomes. There was no meaningful difference between groups in how deep the pockets around the implants were, whether the disease resolved, or in bone levels around the implants.
The main reason for caution is that the benefit was limited to just one measure (bleeding) and was observed over a relatively short time. The study did not report on side effects or safety concerns from the antibiotics, which are important to consider. For patients, this means that while antibiotics might reduce some bleeding in the short term, they did not show broader benefits in this study, and the decision to use them should be made carefully with a dentist, weighing potential risks.