Tetanus toxoid (TT) is a vaccine to induce active immunity in the body against tetanus bacteria. Any object contaminated with dust can be a potential carrier of these bacteria.
Ideally you need a TT booster dose if you have not received any TT dose in the past 5-6 years, you need to take a TT injection. But if you have received it in the past 5 - 6, years you do not need to take a tetanus toxoid injection.