Maintaining healthy teeth and soft oral tissues for life is important. Oral hygiene devices and oral piercings can be traumatizing for the oral cavity. In this thesis the tip of toothbrush filaments is studied and a new interdental device is evaluated. Oral piercings are also not without risks, both lip and tongue piercings are highly associated with the risk of gingival recession, and tongue piercings are associated with tooth injuries. Interested? Read the thesis as a flipbook or download as PDF.