000002874 001__ 2874 000002874 005__ 20260410130554.0 000002874 0247_ $$2DOI$$a10.6083/M43J3BPH 000002874 037__ $$aETD 000002874 245__ $$aEffectiveness of dental masks and an industrial mask to filter aerodynamically respirable dust particles created by grinding dental composite adhesives 000002874 260__ $$bOregon Health and Science University 000002874 269__ $$a2009 000002874 336__ $$aThesis 000002874 502__ $$bM.S. 000002874 502__ $$gOrthodontics 000002874 520__ $$aQuartz has been cited by the international agency for research on cancer as a human carcinogen. Exposure to quartz containing aerodynamically respirable aerosols is possible during the air Rotary abrasion to remove the adhesive from teeth following orthodontic bracket debond. A previous study characterized the particle size distribution of composite adhesive dust within an aerosol generated by air rotary abrasion of quartz filled adhesives using an 8 stage impactor device. The purpose of this study was to one determine the effectiveness of dental masks and removing aerodynamically respirable dust created by grinding dental composite adhesives and two to determine the effectiveness and accuracy of the eight stage impactor in filtering and separating dust particles according to size fractions. 000002874 540__ $$fCC BY 000002874 542__ $$fIn copyright - single owner 000002874 650__ $$aQuartz$$025035 000002874 650__ $$aRespiratory Protective Devices$$025363 000002874 650__ $$aDental Cements$$017491 000002874 650__ $$aParticulate Matter$$037192 000002874 650__ $$aCarcinogens$$016108 000002874 650__ $$aDust$$018118 000002874 650__ $$aNeoplasms$$022758 000002874 691__ $$aSchool of Dentistry$$041368 000002874 692__ $$aDepartment of Orthodontics$$041435 000002874 7001_ $$aVest, Devan$$uOregon Health and Science University$$041354 000002874 8564_ $$9c868aafc-ae08-48f9-8edf-98829181835b$$s5722390$$uhttps://digitalcollections.ohsu.edu/record/2874/files/3643_etd.pdf$$ePublic$$26f5af143a459cac54669cf01ac21aa7a$$31 000002874 901__ $$a<p>These documents are archival records. They are retained for historical reference only. </p><p><b>Need an accessible version? Use the ‘Get Accessible Copy’ link above.</b></p> 000002874 905__ $$a/rest/prod/z6/03/qx/63/z603qx638 000002874 909CO $$ooai:digitalcollections.ohsu.edu:2874$$pstudent-work 000002874 956__ $$aGet Accessible Copy$$uhttps://ohsu.libwizard.com/f/requestaccessibledocument 000002874 980__ $$aTheses and Dissertations