Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
gutta percha removalpoorly condensed gp or single cone technique- hedstrom hand files- barded broachesthe well condenced
removal of obturating material -gutta percha -carrier bassed gutta perca -silver points - paste type - obstructed fracture instrument
rotential complications of post removal -fracture of the tooth -leaving the tooth unrestorable or restored with fair prognosis -root perforation
post removal technique -roto-pro bur - roto-pro bur is a taper bur having are six-sided non-cutting flutes used a high-speed hand-piece around the
post removal technique using prs kit -transmetal efficiently doming the post head -select suitable sized trephine -place drop of rc prep on the post
the prs kit is comprised of -5 variously sized trephines and corresponding tubes according to material if its silver
post removal types of post -active threaded -passive -custom casted cement used -traditional cement -bonded with a composite resin -dentin-bonding
risk during crown removal -tooth inadvertently extracted using a crownbridge remover -endodontic therapy was performed and the tooth was replanted
active instruments -this category of instruments actively engage a restorative enabling a specific dislodgment force to potentially lift off the
crown and bridge remover - nashtaylor temporary crown remover-morell remover -position the curved tip below the height of contour or at the margin of
percussive instruments -this method used a selected and controlled percussive removal force-instruments delivers an impact either directly to a
active instruments- do groove occlusally or buccally until reach tooth structure- apply this instrument then screw to break the bond between tooth
percussive instruments-crown and bridge remover corona flexi nitch-its tip look like the curette and has hock-4 or 5 tips according to tooth position
grasping instruments -plier or clamp forceps -put piece of rubber in the
sticky sweet methodrichwil crown and bridge remover-it is a resin block of water-soluble like a stick sweet -it is first softened in hot water
remove the crown for reuse - if the decision is made to remove the crown for reuse - the visibility is increased - allowing for much easier removal
coronal disassembly- if the existing restoration with marginal defect -the crown was sectioned through the bucco-occlusaly christensen crown remover
access burs through the crown carbide fissure burs cut through metal amalgam alloy or cast metal or composite resin porcelain
access through the crownadvantages -allow for better isolation with the rubber dam -better esthetic anf functioning-good coronal seal between visits
coronal disassembly-if the existing restoration functionally designed well fitting and esthetically pleasing -the access the pulp chamber during
nonsurgical retreatment secondary endodontic ttt -is the main difference between primary endodontic disease versus post treatment disease is the need
extraction of the tooth -in nonstrategic importance-diseased maxillary second molars with no opposing tooth or with an opposing tooth in class l or
if the condition or the post disease as a result of intraradicular infection----gt treated conventionally via apex non-surgical ----gthere we have 2
nonsurgical retreatment will be the preferred choice -less invasive not cause problem to the pt-less traumatic postoperative most probably no post
once the decision has been made to retain the tooth there are two ways for tttbull non surgical retreatment