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Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
Fluid control & soft tissue management in fpd
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Fluid control & soft tissue management in fpd

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seminar on fluid control and soft tissue management for fixed partial denture

seminar on fluid control and soft tissue management for fixed partial denture

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  • 1. FLUID CONTROL & SOFT TISSUE MANAGEMENT IN FPD BY VESTA ENID LYDIA.R III BDS CSICDSR MADURAI
  • 2. FIXED PARTIAL DENTURE  A partial denture that is luted or otherwise securely retained to natural teeth ,tooth roots ,and / or dental implant abutments that furnish primary support for abutments. 
  • 3. TOOTH PREPARATION DE VANS PRINCIPLE  The perpetual preservation of what remains is most important than the meticulous replacement of what is lost.  Care should be taken to prevent excessive tooth preparation  There should be minimal possible reduction done to obtain required characteristics
  • 4. REQUIRED CHARACTERS OF PREPARED TOOTH FINISH LINE
  • 5. FLUIDS OF ORAL CAVITY  Saliva  Gingival bleeding during tooth preparation  Sulcular fluid  Water from hand piece
  • 6. OBJECTIVES OF FLUID CONTROL & TISSUE MANAGEMENT  ISOLATION  RETRACTION  ACCESSIBILITY
  • 7. HOW CAN V ACHIEVE ISOLATION TO CONTROL FLUIDS? MECHANICAL METHODS CHEMICAL METHODS
  • 8. a.Rubber dam b.Suction devices High volume vaccum Saliva ejector Svedopter
  • 9. Y SHOULD V ISOLATE THE OPERATIVE SITE? To obtain a dry clean operating field For easy access and visibility To improve the properties of dental materials To protect the patient and the operator To improve the operating efficiency
  • 10. USES OF RUBBER DAM Isolation of 1 or more teeth Eliminates saliva from operating field Retracts soft tissues
  • 11. DISADVANTAGE OF RUBBER DAM Difficult to use while preparing tooth for fixed partial denture
  • 12. HIGH VOLUME VACCUM SALIVA EJECTOR SVEDOPTER
  • 13. HIGH VOLUME VACUM Helps in removing small debris during crown preparaton Good lip retractor
  • 14. SALIVA EJECTOR It is placed at the corner of the mouth opposite to the quadrent to be operated
  • 15. SVEDOPTER It is used teeth for isolating mandibular teeth It is a metal saliva ejector attached with a tongue deflector
  • 16. DISADVANTAGES OF SVEDOPTER Access to the lingual surface of mandibular teeth is limited Cant be used when mandibular tori precludes its use It may injure the soft tissues
  • 17. ANTI-SIALOGOUGES LOCAL ANASTHETICS
  • 18. CONTROLS SALIVARY FLOW THEY ARE GIT ANTI-CHOLINERGICS THAT INHIBIT THE ACTION OF MYOEPITHELIAL CELLS IN SALIVARY GLANDS,PRODUCING DRY MOUTH
  • 19. COMMONLY USED ANTI- SIALOGOGUES  Methantheline bromide (banthine) :50 mg 1 hour before procedure  Propantheline bromide (pro-banthine) : 15 mg 1 hour before procedure  Clonidine hydrochloride (antihypertensive) : 0.2 mg 1 hour befor procedure
  • 20. Y DO VHAVE TO RETRACT THE GIGIVAL TISSUES?  It is retracted to obtain maximum exposure of finish line  Gingival retraction permits completetion of the preparation and cementation of the restoration and helps the operator to make a complete impression of the preparation.
  • 21. FINISH LINE EXPOSURE?  It is a line of demarcation / or  The peripheral extension of a tooth preparation / or  The planned junction of two materials / or  The terminal portion of prepared tooth
  • 22. IMPORTANCE OF FINISH LINE EXPOSURE  The gingival tissue must be healthy & free of inflammation before cast restorations are fabricated  The finish line must be reproduced in the impression .the marginal fit is very important in preventing recurrent caries and gingival inflammation (marginal intergrity)  Hence the finish line should be temporarily exposed to reproduce entire preparation
  • 23. TECHNIQUES OF GINGIVAL RETRACTION? THEY ARE CLASSIFIED AS Mechanical methods Chemico mechanical methods surgical
  • 24. Copper band Retraction cord Rubber dam
  • 25. COPPER BAND  It is used to carry the impression as well as to displace the gingiva to expose the finish line.
  • 26. TECHNIQUE OF COPPER BAND  Copper band is a welded tube corresponding to the size of the prepared tooth.  One end if the tube is trim to follow the outline of the gingival finish line.  After poistioning and contouring the prepared tooth it is filled with modelling compound and the impression is made. DISADVANTAGE OF COPPER BAND Causes injury to the gingival tissues
  • 27. RETRACTION CORD  Pressure packing the retraction cord into the gingival sulcus provides gingival sulcus.  Can be made with absorbent material like cotton
  • 28. CHEMICO-MECHANICAL METHODS OF GINGIVAL RETRACTION  A chemical with pressure packing in an retraction cord  enlargement of gingival sulcus as well as control of fluids seeping from gingival sulcus
  • 29. CHEMICALS USED FOR GINGIVAL RERACTION  They are generally local vasoconstrictors which produce gingival shrinkage. 8 % racemic epinephrine Aluminium chloride Alum(aluminium potassium sulphate) Alumminium sulphate Ferric sulphate
  • 30. IDEAL REQUIREMENTS OF CHEMICALS USED FOR GINGIVAL RETRACTION CORDS  Should produce effective gingival displacement and haemostasis  It should not produce any irreversible damage to gingival  It should not have any systemic side effects
  • 31. CONTRAINDICATIONS OF EPINEPHRINE
  • 32. TECHNIQUE OF USING RETRACTION CORD The cord can be packed with a special instrument like fischer packing instrument or a DE plastic instrument IPPA
  • 33. SURGICAL METHODS OF GINGIVAL RETRACTION Surgical method are GINGETTAGE ELECTROSURGERY
  • 34. (GINGETTAGE)
  • 35. ROTARY CURETTAGE (GINGETTAGE) It is a troughing technique , wherein a portion of the epithelium within the sulcus is removed to expose the finish line. It should bedone only on the healthy gingival tissue
  • 36. FULLFILLED FOR GINGETTAGE There should be no bleeding on probing The depth of the sulcus should be minimum of 3 mm
  • 37. TECHNIQUE OF GINGETTAGE  It is usually done simultaneously along with finish line preparation  Portion of sulcular epithelium is removed using a torpedo diamond bur.  To improve tactile sense handpiece is run very slowly  Abundant water should be sprayed during the procedure  A retraction cord is impregnated with AlCl 3 can be used to control bleeding
  • 38. DISADVANTAGES OF GINGETTAGE Instrument has poor tactile sense so this technique is very sensitive It can potentially damage the periodontium
  • 39. ELECTROSURGICAL RETRACTION It is the surgical retraction of the sulcular epithelium using an electrode to produce gingival retraction The procedure is called surgical diathermy.
  • 40. INDICATIONS OF ELECTOSURGICAL RETRACTION Areas of inflammation in gingival tissue where the retraction cord cannot be used Gingival proliferation around the prepared finish line
  • 41. CONTRAINDICATIONS OF ELECTOSURGICAL RETRACTION Patients with cardiac pacemakers Use of topical anesthesia such as ethylchloride and other inflammable aerosols should be avoided when electrosurgery is to be used.
  • 42. SURGICAL ELECTRODE or THE CUTTING ELECTRODE  It is like a probe and produces intense heat during surgical procedures  Numerous cutting edge designs are available some of them are  Coagulation loop  Diamond loop  Round loop  Small loop
  • 43. USES OF ELECTROSURGICAL UNIT Gingival sulcus enlargement Crown lengthening Removal of edentulous cuff
  • 44. TECHNIQUE FOR GINGIVAL SULCUS ENLARGEMENT USING AN ELECTROSURGICAL PROBE  Electode is positioned positioned parallel to the long axis of the tooth  A small J shaped bur is used for the procedure  A whole of the tooth can be covered in 4 separate motions namely facial,mesial,lingual and distal  Debris in the sulcus should be removed using cotton pellets dipped in hydrogen peroxide
  • 45. TECHNIQUE FOR SURGICAL CROWN LENGTHENING  It is done when the clinical crown is shorter than the anatomic crown  It is the removal of hyperplastic gingival in order to expose the clinical crown  It is done using diamond electrode  When there is excess wound periodontal dressing is done.
  • 46. TECHNIQUES OF REMOVAL OF EDENTULOUS CUFF Edentulous cuff is an remnant of inter dental papilla Which is seen in the proximal sides of the edentulous space It is removed by using an electrosurgical unit
  • 47. FINAL IMPRESSION
  • 48. BITE REGISTRATION  The dentist may determine that an accurate bite registration is necessary to establish the proper occlusal relationship during mounting.  A bite registration can be made in many ways. Some of the common methods use reinforced bite registration wax, or dental stone mixed with slurry water (water from model trimmer).
  • 49. INTERIM (TEMPORARY CROWN) OR FPD  The last step in this appointment is that a temporary crown or FPD must be made to cover and protect the prepared tooth or teeth while the permanent prosthesis is being fabricated.  Temporary crowns or FPD's can be constructed from preformed acrylic resin and aluminum shells.  Plastic stints and alginate impressions can also be used with self- curing acrylic resin to make an interim prosthesis.  When the temporary is finished, a temporary cement such as zinc oxide and eugenol is used to deliver the interim restoration onto the prepared tooth or teeth.
  • 50. CONCLUSION
  • 51. BIBILOGRAPHY

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