TEMPORIZATION ORPROVISIONAL RESTORATION

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PROVISIONAL-ESTABLISHED FOR TIME BEING,PENDING A PERMANENT ARRANGEMENT.AFTER TOOTH PREPARATION TEMPORARY PROTECTIVE OR FUNCTIONAL RESTORATION IS FABRICATED OVER THE PREPARED TOOTH TO BE USED UNTIL FABRICATION OF FINAL PROSTHESISwww.rxdentistry.net

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IDEALREQUIREMENTS OF PROVISIONAL RESTORATIONwww.rxdentistry.net

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BIOLOGIC REQUIREMENTSPROVISIONAL RESTORATION SHOULDPROTECT THE PULP BECAUSE A FRESHLY PREPARED TOOTH WILL HAVE INCREASED SENSITIVITYMAINTAIN PERIODONTAL HEALTH(GOOD MARGINAL FIT)www.rxdentistry.net

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BE OCCLUSALLY COMPATIBLEPROTECT AGAINST FRACTURE

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MECHANICAL REQUIREMENTSPROVISIONAL RESTORATION SHOULDRESIST FUNCTIONAL LOADSRESIST REMOVAL FORCESMAINTAIN INTERABUTMENT ALIGNMENT

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ESTHETIC REQUIREMENTSPROVISIONAL RESTORATION SHOULD

BE EASILY CONTOURABLE BE COLOR COMPATIBLEBE TRANSLUCENTBE COLOR STABLEwww.rxdentistry.net

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INDICATIONA LONG SPAN POSTERIOR FPDPROLONGED TREATMENT TIMEPATIENT UNABLE TO AVOID EXCESSIVE FORCES ON THE PROSTHESISABOVE AVERAGE MASTICATORY MUSCLE STRENGTHHISTORY OF FREQUENT BREAKAGEwww.rxdentistry.net

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TYPES OF PROVISIONAL RESTORATIONwww.rxdentistry.net

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DEPENDING ON THE METHOD OF FABRICATIONwww.rxdentistry.net

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CUSTOM MADE PROVISIONAL RESTORATIONPREFABRICATED PROVISIONAL RESTORATIONwww.rxdentistry.net

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CUSTOM MADE PROVISIONAL RESTORATIONTHIS RESTORATION IS FABRICATED TO REPRODUCE THE ORIGINAL CONTOURS OF THE TOOTHAN IMPRESSION OF THE PREPARED TOOTH IS MADE AND A CAST IS POUREDPREPARED TOOTH ON THE CAST IS WAXED UP AND CARVED TO REPRODUCE THE ORIGINAL CONTOURSwww.rxdentistry.net

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PREFORMED PROVISIONAL RESTORATIONTHESE ARE COMMERCIALLY AVAILABLE PREFABRICATED CROWNSAVAILABLE IN VARIOUS SIZESOPERATOR CHOOSES THE BEST ONE SUIT TO THE PATIENTBEFORE CEMENTATION THESE CROWNS ARE SLIGHTLY ALTERED AND MODIFIED TO FIT THE TOOTH

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DEPENDING ON THE MATERIAL AVAILABLE IN PREFORMED CROWNSwww.rxdentistry.net

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POLYCARBONATECELLULOSE ACETATEALUMINIUM AND TIN-SILVERNICKEL-CHROMIUMwww.rxdentistry.net

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DEPENDING ON THE TYPE OF MATERIAL USEDwww.rxdentistry.net

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RESIN BASED PROVISIONAL RESTORATION CELLULOSE ACETATE POLYCARBONATE POLY-METHYL METHACRYLATE POLY-R METHACRYLATE MICROFILLED COMPOSITE URETHANE DIMETHACRYLATEMETAL PROVISIONAL RESTORATION ALUMINIUM NICKEL-CHROMIUM TIN-SILVERwww.rxdentistry.net

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DEPENDING ON THE DURATION OF USEwww.rxdentistry.net

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SHORT TERM TEMPORARY RESTORATION LONG TERM TEMPORARY RESTORATIONwww.rxdentistry.net

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DEPENDING ON TECHNIQUE OF FABRICATIONwww.rxdentistry.net

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PROVISIONAL RESTORATION FABRICATED USING DIRECT TECHNIQUEPROVISIONAL RESTORATION FABRICATED USING INDIRECT TECHNIQUEPROVISIONAL RESTORATION FABRICATED USING DIRECT-INDIRECT TECHNIQUEwww.rxdentistry.net

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TECHNIQUES FOR CUSTOM PROVISIONAL RESTORATIONwww.rxdentistry.net

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OVERIMPRESSION FABRICATED PROVISIONAL CROWNTEMPLATE FABRICATED PROVISIONAL FIXED PARTIAL DENTURETEMPLATE FABRICATED VLC PROVISIONAL RESTORATIONSHELL-FABRICATED PROVISIONAL RESTORATIONOVERIMPRESSION FABRICATED BIS-ACRYL COMPOSITE CROWNwww.rxdentistry.net

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OVERIMPRESSIONFABRICATED PROVISIONAL CROWNwww.rxdentistry.net

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1.COMMONLY DONE WITH ALGINATE IMPRESSION MATERIAL2.OVERIMPRESSION CAN BE MADE FROM THE PATIENTS MOUTH OR FROM THE DIAGNOSTIC CAST.3.WHEN THE ALGINATE HAS SET OVERIMPRESSION IS REMOVED AND CHECKED FOR COMPLETENESS.www.rxdentistry.net

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4.THIN FLASHES OF IMPRESSION MATERIAL THAT REPLICATE THE GINGIVAL CREVICE ARE REMOVED TO INSURE THAT NO IMPEDIMENT TO THE COMPLETE SEATING OF THE CAST INTO THE OVERIMPRESSION LATER.5.IMPRESSION IS THEN WRAPPED IN A WET PAPER TOWEL AND PLACED IN A ZIPLOCK PLASTIC BAG FOR LATER USE.

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6.WHEN THE TOOTH PREPARATION IS COMPLETED,ANOTHER QUADRANT IMPRESSION IS MADE WITH ALGINATE7.THIS IMPRESSION IS THEN POURED WITH A THIN MIX OF QUICK SETTING PLASTER.8.THEN TRY TRIMMED QUICK SET PLASTER CAST IN THE OVERIMPRESION TO MAKE SURE THAT IT WILL SEAT COMPLETELYwww.rxdentistry.net

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9.COAT THE PREPARED TOOTH AND ADJACENT AREAS OF THE CAST LIBERALLY WITH A TIN FOIL SUBSTITUTE SEPERATING MEDIUM10.MIX TOOTH COLORED ACRYLIC RESIN IN A DAPPEN DISH WITH A CEMENT SPATULA11.PLACE THE RESIN IN THE OVERIMPRESSION SO THAT IT COMPLETELY FILLS THE CROWN AREA OF THE TOOTH

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..12.SEAT THE CAST INTO THE OVERIMPRESSION ,MAKING SURE THAT THE TEETH ON THE CAST ARE ACCURATELY ALIGNED WITH THE TOOTH IMPRESSION.13.FORCE USED TO SEAT THE CAST INTO THE ALGINATE IMPRESSION IS CRITICAL.EXCESSIVE FORCE CAN OVERSEAT THE CAST AND UNEVEN FORCE CAN TORQUE THE CAST.14.ONCE THE CAST HAS BEEN FIRMLY SEATED HOLD THE CAST IN PLACE WITH A LARGE RUBBER BAND

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15.PLACE THE OVERIMPRESSION-PLASTER CAST ASSEMBLY IN A PLASTER BOWL FULL OF HOT TAP WATER OR APPROX. 5 MIN OR INTO A PRESSURE POT UNDER 20 PSI.16.WHEN THE RESIN HAS POLYMERISED.REMOVE THE RUBBER BAND TO DISASSEMBLE IT.www.rxdentistry.net

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17.FINALLY THE RESTORATION IS FINISHED,POLISHED AND CEMENTED

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