Mecanmed ke baetsi ba litsebi Vestibular Boarders le barekisi Chaena ba ka rereng tsa Re ka fana ka litšebeletso tsa litsebi le theko e betere ho uena. Haeba u thahasella Merstibular Board lihlahisoa tsa theko , ka kopo ikopanye le rona. Malebela: Litlhoko tsa Bohlokoa: OEM, O IME, o hlophisitsoe ka kopo, 'me u re bolelle litlhoko tsa rona. Re latela boleng ba phomolo ba letsoalo, tšebeletso e inehetseng.