gingival linegingival sulcusgroovegumheightheight of contourheterodonthomodonthutchinsonapos s incisorhyraxhyrax appliancehyrax expansion screwimpacted toothincisal edgeincisal embrasureincisorinstallinternetinterproximalinterproximal spacelalabiallabial embrasurelaboratorylaminatelateral canallateral incisorlineline anglelinguallingual embrasurelongitudinallower archmacrodontiamailmalocclusionmamelonmandiblemandibularmandibular archmandibular caninemandibular central incisormandibular first molarmandibular first premolarmandibular lateral incisormandibular lower leftmandibular lower rightmandibular second molarmandibular second premolarmandibular third molar