- Larger maintenance: TRMs generally require a lot more diligent cleansing than MADs due to their specific design. Tongue retaining units – Instead of reposition the jaw, a tongue retaining system will reposition the tongue. It is sort of a tender, plastic splint that stops the tongue from slipping backward https://implant-prosthetics.dailyblogzz.com/33251187/5-essential-elements-for-removable-prosthetics