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Achiselisusedtosplitolunsupportedenamel.
Aflatplasticinstrument(commonlyknownas‘aflatplastic’)is
usedtoinsertandhandlefillingmaterials.
Arotarycuttinginstrumentiscalledaburandismountedonan
anglehandpiecethatgivesitarotarymotion.
Burstobeusedoutsidethemouthforprosthesescorrectionsmay
bemountedonastraighthandpiece.
Bursaresometimesreferredtoasdrills.Teycomeinavarietyof
sizesandshapesbutfallintogeneralgroupsthatlooklikethis:
(1)round(2)invertedcone(3)straight(4)tapered(5)pear-shaped(6)flame
Aburisusedtoopenthecavity,removecaries,shapeandsmooth
thecavitysurfaces.Aftertherestorationplacementitisusedto
trimandpolishitssurfaces.
Arubberdamisusedforperfectcavityisolation.Itisthemost
electivethoughnottheeasiestmethodofteethisolation.Itisa
thin,highlyflexiblepieceoflatexrubberwhichhasholespunched
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