I-engile yokutshiza yemilomo yemilomo engenanto Ngu-52 ° -180 °. I-engile yokutshiza yahlulwe nge-engile esemgangathweni kunye ne-engile ebanzi. I-engile esemgangathweni ibhekisa kumbhobho we-cone umlomo kunye ne-angle engaphantsi kwe-80 °, kwaye i-angle ebanzi ibhekisa kwikona engenanto kunye ne-angle engaphezulu kwe-80 °. umlomo.

Umgangatho we-engile yomngxuma ongasasebenziyo ngokubanzi wamkela uyilo lwemilomo yesetyhula, kwaye i-engile yokutshiza ilawulwa kukujikeleza kolwelo olubangelwa ngumlomo wemilomo. Umbhobho omkhulu we-cone ojikelezileyo usekwe kumngxunya wesetyhula kwaye unyuse ukuphambukiswa Xa ulwelo lutshiziwe emva kokujikeleza ngesantya esiphezulu, luya kutshizwa kunye nomphezulu wesikhokelo, ke i-engile yomgangatho wesikhokelo umisela okokugqibela. ukutshiza i-engile yombhobho we-cone.