A multiple tray impressionA multiple tray impression
technique for implant retainedtechnique for implant retained
orbital ...
Introduction:Introduction:
• Current methods of retaining facialCurrent methods of retaining facial
prostheses use eitherp...
• Many patients requiring orbital prosthesesMany patients requiring orbital prostheses
undergo radiation treatment and the...
• In addition , the tissue surface of siliconeIn addition , the tissue surface of silicone
prostheses fabricate on the sto...
• Implants can support and retain an orbitalImplants can support and retain an orbital
prosthesis.prosthesis.
• A history ...
• The advent of hyper baric oxygen therapyThe advent of hyper baric oxygen therapy
has made possible the use of Osseohas m...
• Making impression of orbital area, withMaking impression of orbital area, with
accurate transfer of implants, can be aac...
• The use of multiple acrylic resin customThe use of multiple acrylic resin custom
trays and polyvinyl siloxane impression...
• In this manner, the superstructure can beIn this manner, the superstructure can be
fabricated on the master cast with th...
• This technique provides for a vertical pathThis technique provides for a vertical path
of removal for the implant transf...
TechniqueTechnique
• After exposure ofAfter exposure of
implants andimplants and
placement of healingplacement of healing
...
• Pour the impression in dental stone.Pour the impression in dental stone.
www.indiandentalacademy.comwww.indiandentalacad...
• On the primary cast, place approximatelyOn the primary cast, place approximately
5mm of relief wax over the duplicated5m...
• Paint the cast with a release agent.Paint the cast with a release agent.
www.indiandentalacademy.comwww.indiandentalacad...
• Fabricate the acrylicFabricate the acrylic
resin custom trays.resin custom trays.
• Make the traysMake the trays
triangu...
• Make a third middleMake a third middle
tray over the othertray over the other
trays in position ontrays in position on
t...
• Make the external matrixMake the external matrix
[fourth] tray by lubricating[fourth] tray by lubricating
the external s...
• When set, remove the external matrix trayWhen set, remove the external matrix tray
and perforate it with no 8 round bur ...
• Remove and polish the trays.Remove and polish the trays.
www.indiandentalacademy.comwww.indiandentalacademy.com
• Place appropriatePlace appropriate
abutments on theabutments on the
implants.implants.
• Try the fit of the traysTry the...
• Lightly lubricate the hair in the region withLightly lubricate the hair in the region with
a petroleum based lubricant.a...
• Place the implantPlace the implant
transfer componentstransfer components
in position.in position.
• Again assess theAga...
• Paint the trays with proper adhesive andPaint the trays with proper adhesive and
allow to dry.allow to dry.
www.indiande...
• Make the inferiorMake the inferior
impression by syringingimpression by syringing
impression materialimpression material...
• The material should be confined to theThe material should be confined to the
inferior part of the orbit and should captu...
• Lightly lubricate theLightly lubricate the
external aspect of theexternal aspect of the
inferior impressioninferior impr...
• If a middle tray is used,If a middle tray is used,
check the clearance ofcheck the clearance of
the tray.the tray.
• Adj...
• Adapt the external matrix tray over theAdapt the external matrix tray over the
impressions to assess fit; then paint wit...
• With impressionWith impression
material at each end.,material at each end.,
gently seat thegently seat the
external matr...
• Disassemble theDisassemble the
impressions in theimpressions in the
reverse order.reverse order.
www.indiandentalacademy...
• Place the appropriatePlace the appropriate
implant transferimplant transfer
analogs in theanalogs in the
impressions.imp...
• Reassemble theReassemble the
impressions and useimpressions and use
sticky wax to securesticky wax to secure
them togeth...
• Box and pour the impression in type 4Box and pour the impression in type 4
dental stone.dental stone.
www.indiandentalac...
conclusionconclusion
• The advantages of this method are accuracyThe advantages of this method are accuracy
and removal of...
Thank you
For more details please visit
www.indiandentalacademy.com
www.indiandentalacademy.comwww.indiandentalacademy.com
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A multiple tray impression technique for implant retained orbital prosthesis

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A multiple tray impression technique for implant retained orbital prosthesis

  1. 1. A multiple tray impressionA multiple tray impression technique for implant retainedtechnique for implant retained orbital prosthesis - A revieworbital prosthesis - A review INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.comwww.indiandentalacademy.com
  2. 2. Introduction:Introduction: • Current methods of retaining facialCurrent methods of retaining facial prostheses use eitherprostheses use either AdhesivesAdhesives Anatomic undercutsAnatomic undercuts Attachments to oral prostheses or Osseo-Attachments to oral prostheses or Osseo- integrated implants.integrated implants. www.indiandentalacademy.comwww.indiandentalacademy.com
  3. 3. • Many patients requiring orbital prosthesesMany patients requiring orbital prostheses undergo radiation treatment and theundergo radiation treatment and the tissues which support and retaintissues which support and retain prosthesis may be irritated by adhesiveprosthesis may be irritated by adhesive placement and removal.placement and removal. www.indiandentalacademy.comwww.indiandentalacademy.com
  4. 4. • In addition , the tissue surface of siliconeIn addition , the tissue surface of silicone prostheses fabricate on the stone cast isprostheses fabricate on the stone cast is rough and may act as an irritant andrough and may act as an irritant and produce tissue abrasion.produce tissue abrasion. www.indiandentalacademy.comwww.indiandentalacademy.com
  5. 5. • Implants can support and retain an orbitalImplants can support and retain an orbital prosthesis.prosthesis. • A history of radiation to the anatomic siteA history of radiation to the anatomic site generally contraindicates the use ofgenerally contraindicates the use of implants.implants. www.indiandentalacademy.comwww.indiandentalacademy.com
  6. 6. • The advent of hyper baric oxygen therapyThe advent of hyper baric oxygen therapy has made possible the use of Osseohas made possible the use of Osseo integrated implants for patients who haveintegrated implants for patients who have had previous radiation therapy.had previous radiation therapy. www.indiandentalacademy.comwww.indiandentalacademy.com
  7. 7. • Making impression of orbital area, withMaking impression of orbital area, with accurate transfer of implants, can be aaccurate transfer of implants, can be a difficult procedure.difficult procedure. www.indiandentalacademy.comwww.indiandentalacademy.com
  8. 8. • The use of multiple acrylic resin customThe use of multiple acrylic resin custom trays and polyvinyl siloxane impressiontrays and polyvinyl siloxane impression material allows the proper reproduction ofmaterial allows the proper reproduction of all soft and hard tissue detail and theall soft and hard tissue detail and the position of the implants.position of the implants. www.indiandentalacademy.comwww.indiandentalacademy.com
  9. 9. • In this manner, the superstructure can beIn this manner, the superstructure can be fabricated on the master cast with thefabricated on the master cast with the orbital prosthesis processed on the sameorbital prosthesis processed on the same cast.cast. www.indiandentalacademy.comwww.indiandentalacademy.com
  10. 10. • This technique provides for a vertical pathThis technique provides for a vertical path of removal for the implant transfer copingsof removal for the implant transfer copings in the superior and inferior borders of thein the superior and inferior borders of the orbit.orbit. • In different implant positions, threeIn different implant positions, three component trays may suffice.component trays may suffice. www.indiandentalacademy.comwww.indiandentalacademy.com
  11. 11. TechniqueTechnique • After exposure ofAfter exposure of implants andimplants and placement of healingplacement of healing cuffs, make ancuffs, make an irreversibleirreversible hydrocolloidhydrocolloid impression of theimpression of the defect.defect. www.indiandentalacademy.comwww.indiandentalacademy.com
  12. 12. • Pour the impression in dental stone.Pour the impression in dental stone. www.indiandentalacademy.comwww.indiandentalacademy.com
  13. 13. • On the primary cast, place approximatelyOn the primary cast, place approximately 5mm of relief wax over the duplicated5mm of relief wax over the duplicated implant healing cuffs and allow adequateimplant healing cuffs and allow adequate space for impression material.space for impression material. www.indiandentalacademy.comwww.indiandentalacademy.com
  14. 14. • Paint the cast with a release agent.Paint the cast with a release agent. www.indiandentalacademy.comwww.indiandentalacademy.com
  15. 15. • Fabricate the acrylicFabricate the acrylic resin custom trays.resin custom trays. • Make the traysMake the trays triangular in shapetriangular in shape and separated fromand separated from each other toeach other to separate the defectseparate the defect into superior andinto superior and inferior parts.inferior parts. www.indiandentalacademy.comwww.indiandentalacademy.com
  16. 16. • Make a third middleMake a third middle tray over the othertray over the other trays in position ontrays in position on the cast.the cast. www.indiandentalacademy.comwww.indiandentalacademy.com
  17. 17. • Make the external matrixMake the external matrix [fourth] tray by lubricating[fourth] tray by lubricating the external surfaces ofthe external surfaces of the three internal trays onthe three internal trays on the preliminary cast andthe preliminary cast and form the matrix over theform the matrix over the internal trays.internal trays. www.indiandentalacademy.comwww.indiandentalacademy.com
  18. 18. • When set, remove the external matrix trayWhen set, remove the external matrix tray and perforate it with no 8 round bur toand perforate it with no 8 round bur to enhance mechanical retention of theenhance mechanical retention of the impression material.impression material. www.indiandentalacademy.comwww.indiandentalacademy.com
  19. 19. • Remove and polish the trays.Remove and polish the trays. www.indiandentalacademy.comwww.indiandentalacademy.com
  20. 20. • Place appropriatePlace appropriate abutments on theabutments on the implants.implants. • Try the fit of the traysTry the fit of the trays and access forand access for adaptation to theadaptation to the defect.defect. www.indiandentalacademy.comwww.indiandentalacademy.com
  21. 21. • Lightly lubricate the hair in the region withLightly lubricate the hair in the region with a petroleum based lubricant.a petroleum based lubricant. www.indiandentalacademy.comwww.indiandentalacademy.com
  22. 22. • Place the implantPlace the implant transfer componentstransfer components in position.in position. • Again assess theAgain assess the trays for unobtrusivetrays for unobtrusive fit over the implantfit over the implant component.component. www.indiandentalacademy.comwww.indiandentalacademy.com
  23. 23. • Paint the trays with proper adhesive andPaint the trays with proper adhesive and allow to dry.allow to dry. www.indiandentalacademy.comwww.indiandentalacademy.com
  24. 24. • Make the inferiorMake the inferior impression by syringingimpression by syringing impression materialimpression material around the implantaround the implant transfer parts, in thetransfer parts, in the inferior part of the orbit,inferior part of the orbit, and in the tray.and in the tray. • Gently seat the tray intoGently seat the tray into place and remove theplace and remove the excess material.excess material. www.indiandentalacademy.comwww.indiandentalacademy.com
  25. 25. • The material should be confined to theThe material should be confined to the inferior part of the orbit and should captureinferior part of the orbit and should capture the desired perimeter of the defect.the desired perimeter of the defect. www.indiandentalacademy.comwww.indiandentalacademy.com
  26. 26. • Lightly lubricate theLightly lubricate the external aspect of theexternal aspect of the inferior impressioninferior impression with petroleum jelly.with petroleum jelly. • Make the superiorMake the superior impression in theimpression in the same manner.same manner. www.indiandentalacademy.comwww.indiandentalacademy.com
  27. 27. • If a middle tray is used,If a middle tray is used, check the clearance ofcheck the clearance of the tray.the tray. • Adjust the tray and makeAdjust the tray and make an impression withan impression with sufficient impressionsufficient impression material to allow joining ofmaterial to allow joining of all impressions withoutall impressions without locking one tray to thelocking one tray to the other.other. www.indiandentalacademy.comwww.indiandentalacademy.com
  28. 28. • Adapt the external matrix tray over theAdapt the external matrix tray over the impressions to assess fit; then paint withimpressions to assess fit; then paint with adhesive and allow to dray.adhesive and allow to dray. www.indiandentalacademy.comwww.indiandentalacademy.com
  29. 29. • With impressionWith impression material at each end.,material at each end., gently seat thegently seat the external matrix trayexternal matrix tray over the impressionover the impression trays and allowed totrays and allowed to set.set. www.indiandentalacademy.comwww.indiandentalacademy.com
  30. 30. • Disassemble theDisassemble the impressions in theimpressions in the reverse order.reverse order. www.indiandentalacademy.comwww.indiandentalacademy.com
  31. 31. • Place the appropriatePlace the appropriate implant transferimplant transfer analogs in theanalogs in the impressions.impressions. www.indiandentalacademy.comwww.indiandentalacademy.com
  32. 32. • Reassemble theReassemble the impressions and useimpressions and use sticky wax to securesticky wax to secure them together.them together. www.indiandentalacademy.comwww.indiandentalacademy.com
  33. 33. • Box and pour the impression in type 4Box and pour the impression in type 4 dental stone.dental stone. www.indiandentalacademy.comwww.indiandentalacademy.com
  34. 34. conclusionconclusion • The advantages of this method are accuracyThe advantages of this method are accuracy and removal of impressions on implants that areand removal of impressions on implants that are placed in opposing positioned a limited space,placed in opposing positioned a limited space, which precludes removal of a one-partwhich precludes removal of a one-part impression.impression. • This allows fabrication of the superstructureThis allows fabrication of the superstructure required and the final orbital prostheses on therequired and the final orbital prostheses on the samesame www.indiandentalacademy.comwww.indiandentalacademy.com
  35. 35. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.comwww.indiandentalacademy.com

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