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LOCATOR FOR BAR SPLINTED MULTI-UNITIMPLANT ABUTMENTSThe proper tissue cuff height of angled Multi-Unit Abutments and straight Multi-Unit Abutments must beplaced according to the Implant Company clinical procedures. The bar splinted LOCATOR Implant Abutmentfor the angled Multi-Unit Abutment and the straight Multi-Unit Abutment is a two piece part that contains acastable plastic Delrin Collar and the LOCATOR Abutment.12A1 Take an impression with the implant manufacturer MultiUnit Impression Copings and create a master model usingthe Multi-Unit Abutment Replicas.2B2A-2BOn the master model place a Delrin Collar oneach of the four Multi Unit Abutments. A special gold platedAbutment Driver (end piece of the LOCATOR Core Tool) isdesigned to engage the inside diameter of the LOCATORAbutment to place it through the Delrin Collar and thread itinto the internal thread of the Multi-Unit Abutment Analog.Wax the four Delrin Collars directly into the bar pattern. Remove the LOCATOR Abutments and cast the waxed bar pattern according to standard dentallaboratory procedures. After polishing the cast bar, place the bar and LOCATOR Abutments back onto the master model tocheck for proper fit. Seat the bar on the Multi-Unit Abutments and seat the LOCATOR Abutments through the cast barand onto the Multi-Unit Abutments. Hand-tighten the LOCATOR Abutments and torque to 20Ncm (identified by “ M1.4” symbol on label)using a LOCATOR Torque Wrench Driver for final torque tightening to prevent screw loosening. The use of higher torque values than the maximum recommended 20Ncm could cause fracture ofthe Multi-Unit LOCATOR Abutment. Proceed with the standard procedure of the LOCATOR Bar Attachment.9

PROCESSING LOCATOR DENTURE CAPS INTO THEOVERDENTURE, DIRECT TECHNIQUE1DIRECT TECHNIQUE FOR NEW OREXISTING DENTURE1Place a White Block-Out Spacer around eachAbutment and press it down to the tissue. Snap aDenture Cap with a pre-loaded Black Processing Maleonto each Abutment, pressing down firmly.22 Apply fit check marking paste to the intaglio surfaceof the overdenture. Insert it into the mouth in positionover the Denture Cap. This will mark areas where theoverdenture will need to be relieved to allow space forthe Caps to be picked up.3A3B4.5mm drillingdepth4A104B3A-3BRelieve the marked areas with theCHAIRSIDE Recess Bur. Zest recommends using slightpressure and a small rocking motion to get the tip of theBur started, followed by a straight downward motionto create the desired recess site. This efficient Bur hasdistinct depth landmarks which indicate where to stopwhen drilling for the Denture Cap.4A-4B Use the CHAIRSIDE Undercut Bur to cut anundercut around the circumference of the recesses formechanical retention. Cut lingual/palatal vent windowsin the overdenture with the CHAIRSIDE Vent Bur tovisualize full seating and for excess material to vent.

PROCESSING LOCATOR DENTURE CAPS INTO THEOVERDENTURE, DIRECT TECHNIQUE (CONTINUED)55 Dry the Denture Caps. Apply a small amount ofCHAIRSIDE Attachment Processing Material around thecircumference of each Cap. Place CHAIRSIDE Materialinto the recesses in the overdenture and seat it over theCaps and onto the tissue. Have the patient close intolight occlusion and hold while the CHAIRSIDE Materialsets. Please refer to CHAIRSIDE Attachment ProcessingMaterial IFU for set times.NOTE: Excessive occlusal pressure during the settingtime may cause tissue recoil against the overdenture baseand could contribute to dislodging and premature wearof the Males.66 Disengage the overdenture from the Abutments andremove from the mouth. Verify that the Denture Capshave been securely processed into the overdenture. Fillany voids and light cure. The material will bond to itselfand will cure within 30 seconds with light application.Remove any excess material with the CHAIRSIDE GrindBur.77Use the CHAIRSIDE Trim Bur to remove any excessacrylic material remaining on the overdenture.88 Use the CHAIRSIDE Polish Bur to create a smoothfinish of the overdenture.11

PROCESSING LOCATOR DENTURE CAPS INTO THEOVERDENTURE, DIRECT TECHNIQUE (CONTINUED)99Remove the Black Processing Male using theRemoval Tool.1010 Place the selected final Male into each DentureCap using the Seating Tool. Start with the leastretentive Male for the initial patient try-in. Please referto LOCATOR 3-In-1 Core Tool instructions on page 5.111112Seat the overdenture and press down to engagethe Males on the LOCATOR Abutments and verify theocclusion. Instruct the patient on how to remove andinsert the overdenture. If the retention is not satisfactory,remove the Males and replace with the next level ofretention. Refer to the Standard and Extended RangeMale retention chart on page 4. Please refer to page 31for instructions on proper home care maintenance andrequired recall visits.

PROCESSING LOCATOR DENTURE CAPS INTO THEOVERDENTURE, INDIRECT TECHNIQUE1INDIRECT TECHNIQUE/LABORATORYPROCESSING1 A stock or custom impression tray may be used.Ensure that each recess has enough space for the heightof the LOCATOR Impression Copings.4.5mm5.5mm22Place a LOCATOR Impression Coping on eachAbutment and press down firmly. Syringe CHAIRSIDE Medium Body Impression Material, around thecircumference of each coping. Fill the impression trayand insert it over the copings and onto the tissue. Allowthe material to set and remove the Impression Tray.33Seat the appropriate diameter LOCATOR Analogsinto each Impression Coping and send the impression tothe laboratory.44Verify that the Analogs are secure in the ImpressionCopings and pour a model.13

PROCESSING LOCATOR DENTURE CAPS INTO THEOVERDENTURE, INDIRECT TECHNIQUE (CONTINUED)55Fabricate the baseplate and wax rim on the castfor the bite registration. The Denture Caps with BlackProcessing Males may be processed into the baseplateto provide stabilization during record making and try-in.66 BITE RECORDSPlace the bite block into the mouth and record the jawrelation. Take an impression of the opposing arch andpour the cast. Select a shade for the overdenture teeth.77Articulate the models and proceed with theoverdenture teeth set up.88 OVERDENTURE TRY-INPlace the try-in overdenture into the mouth and verifythe fit, attachment engagement, esthetics, phoneticsand occlusion.14

PROCESSING LOCATOR DENTURE CAPS INTO THEOVERDENTURE, INDIRECT TECHNIQUE (CONTINUED)99Finalize and flask the overdenture for processing.Separate the flask and boil away all wax. Place theDenture Caps with Black Processing Males on theAnalogs and press down firmly. Place the cast backinto the flask and verify that there is no contact withthe teeth. Close the flask and process the overdenture.Remove the overdenture from the flask, finish, and polish.1011A10Optional Step: A Processing Spacer could be usedinstead of the Denture Caps during the fabrication of theoverdenture if the clinician prefers to pick up the DentureCaps chairside. The Processing Spacer creates a recessin the overdenture to allow for the Denture Cap to beseated without any interference with the surroundingoverdenture acrylic.11B11A-11BRemove the Black Processing Male using theRemoval Tool. Place the selected final Male into eachDenture Cap using the Seating Tool. Start with the leastretentive Male for the initial patient try-in.NOTE: Please refer to the LOCATOR 3-In-1 Core Toolinstructions on page 5.1212 DELIVERYPlace the overdenture in the mouth and press downto engage the Males on the Abutments. Verify theocclusion. If the retention is not satisfactory, remove theMales and replace with the next level of retention.NOTE: Please refer to the Standard and Extended RangeMale chart on page 4 for additional selection criteria.Please refer to page 31 for instructions on proper homecare maintenance and required recall visits.15

LOCATOR BAR ATTACHMENT SYSTEMDRILL AND TAP1A1B1A-1B After completing the overdenture wax try-in,make a matrix of the set up.2A2B2A-2B With the teeth placed back in the matrix, seatthe matrix on the model. Determine the locations forthe LOCATOR Bar Abutments in relation to the implantpositions, spacing between Abutments, and the interarchspace.Fabricate the bar.NOTE: A minimum of 5.0mm between the edges ofmultiple LOCATOR Bar Abutments is required to avoidinterference with the Denture Caps.34A163 Using a round bur, create a dimple in the top of thebar at the Abutment locations elected.4B4A-4BSelect the appropriate Bar Drill and fingertighten into the Drill and Tap Holder. Place the assemblyinto the handpiece. Position the drill on the dimple anddrill to a depth of 2.8mm.

LOCATOR BAR ATTACHMENT SYSTEMDRILL AND TAP (CONTINUED)5A5B5A-5BSelect the appropriate Bar Tap and fingertighten into the Drill and Tap Holder. Manually tap thethreads within each drilled site.NOTE: The use of tapping fluid while cutting the threadsinto the bar is required to reduce the chance of breakingthe tap off in the site.66Seat each LOCATOR Bar Abutment to 30Ncm usinga torque device and the LOCATOR Driver Insert.77Snap a Denture Cap with a yellow Processing Maleonto each LOCATOR Abutment and verify that the bardoes not interefere with the seating of the Denture Cap.Proceed with the fabrication of the prosthesis.17

LOCATOR BAR ATTACHMENT SYSTEMCASTABLE THREADED INSERT1A1B1A-1B After completing the overdenture wax try-in,make a matrix of the teeth set up.2A2B2A-2BWith the teeth placed back in the matrix,seat the overdenture bar onto the implant components.Survey and set a Castable Threaded Insert into the waxpattern of the bar at the locations selected.NOTE: A minimum of 5.0mm between the edges ofmultiple LOCATOR Bar Abutments is required to avoidinterference with the Denture Caps.34A3 Invest and cast the bar using standard castingprocedures. The threaded inserts will become part of thecast bar.4B4A-4B Divest, finish and polish the cast bar. Fingertighten the Bar Tap manually into the Drill and TapHolder. Use the Bar Tap to manually chase and clean theinternal threads of each insert.NOTE: The use of tapping fluid while cleaning the threadsinto the bar is required to reduce the chance of breakingthe tap off in the site.18

LOCATOR BAR ATTACHMENT SYSTEMCASTABLE THREADED INSERT (CONTINUED)5A675B5A-5BPlace the LOCATOR Abutment into theAbutment Holder Sleeve and thread the Abutment intoeach castable insert.6Torque each LOCATOR Bar Abutment to 30Ncmusing a torque device and the LOCATOR Driver Insert.7Snap a Denture Cap with a yellow Processing Maleonto each LOCATOR Abutment and verify that the bardoes not interefere with seating of the Denture Cap.Proceed with the fabrication of the prosthesis.19

LOCATOR BAR ATTACHMENT SYSTEMLASER WELD1A1B2A2B1A-1BAfter completing the overdenture wax try-in,make a matrix of the teeth set up.2A-2BWith the teeth placed back in the matrix,seat the matrix on the model. Determine the locationsfor the LOCATOR Bar Abutments in relation to theimplant positions, spacing between attachments and theinterarch distance space.Fabricate the bar.NOTE: A minimum of 5.0mm between the edges ofmultiple LOCATOR Bar Abutments is required to avoidinterference with the Denture Caps.34203Place the matrix back on the model over the bar andverify that there is the needed space for the attachmentat each location.4Place the split end of the LOCATOR ParallelingMandrel into the socket of the Laser Bar and fingertighten the knurled set screw to spread the split portionand secure the Abutment on the mandrel.

LOCATOR BAR ATTACHMENT SYSTEMLASER WELD (CONTINUED)55Place the Paralleling Mandrel in a surveyor and placethe LOCATOR Bar Abutments in position on the bar.Tack the LOCATOR Bar Abutments into place by spotwelding on opposite sides.66 Loosen the screw on the Paralleling Mandrel andremove it. Form a bead of weld around the entirecircumference of the base area, welding the LOCATORBar Abutments to the bar.77 Snap a Denture Cap with a Yellow Processing Maleonto each LOCATOR Bar Abutment and verify thatthe laser weld does not interfere with the Cap seatingcompletely.Proceed with the fabrication of the prosthesis.21

LOCATOR BAR ATTACHMENT SYSTEMCAST-TO BAR1A-1B1A1BAfter completing the overdenture wax try-in,make a matrix of the teeth set up.2A2B2A-2B With the teeth placed back in the matrix,seat the matrix on the model. Determine the locationsfor the LOCATOR Bar Abutments in relation to theimplant positions, spacing between attachments andthe interarch space. Wax the overdenture bar to theimplant components.A minimum of 5.0mm between the edges of multipleLOCATOR Bar Abutments is required to avoidinterference with the Denture Caps.34223Place the split end of the LOCATOR ParallelingMandrel into the socket of the Laser Bar Abutments andfinger tighten the knurled set screw to spread the splitportion and secure the Abutments on the mandrel.4Use the LOCATOR Paralleling Mandrel in a surveyorto place all the Cast-To Bar Abutments into the waxedbar ensuring parallelism. Wax the Cast-To Bar Abutmentsinto position.

LOCATOR BAR ATTACHMENT SYSTEMCAST-TO BAR (CONTINUED)55 Wax should be built up to the top of the retentiverecess and not above the line indicated.WaxingLimit66 Invest and cast the Bar using standard castingprocedures. The Cast-To Bar Abutments will becomepart of the cast bar.778Divest, finish and polish the cast bar. Use cautionto not damage the Cast-To Abutments. A LOCATORParallel Post may be placed on the Abutment to protectit while polishing.8Snap a Denture Cap with a Yellow Processing Maleonto each LOCATOR Abutment and verify that there areno interferences with the bar.Proceed with the fabrication of the prosthesis.23

LOCATOR ROOT ATTACHMENT SYSTEMPLACEMENT OF LOCATOR ROOT ABUTMENT11 Take an impression of the arch and pour a diagnosticmodel. Reduce the teeth to 1mm above the gingivaltissue and measure the root width to determine thespace available for a LOCATOR Root Abutment.Min. 4mmNOTE: The width of the root surface must equal orexceed 4mm.2A2B2A-2B1mmMin. 4mm3A3BRadiograph the tooth roots to measureand determine the proper angle of post on theLOCATOR Abutment. Decoronate the root and performendodontic therapy. Remove the desired depth of guttapercha following standard clinical procedures. Finishcontouring of the roots. The final reduction should placethe root surface 1mm supragingival.3A-3B Hold the LOCATOR Abutment next to thePilot Drill and set the plastic Depth Reference Ring onthe Pilot Drill to match the screw threads length. Thescrew threads can be shortened if needed. Size thecanal using the Pilot Drill stopping at the depth ring.The alignment of this initial preparation will generallyfollow the canal. On a non-parallel root, the resultingdivergence can be corrected using an angled LOCATORAbutment 10 or 20 .CAUTION: The danger of root perforation exists whenthe full length of the Pilot Drill is used.4A4B4A-4BSpotface the root surface using theSpotface Diamond Bur to a depth where a full 360 recessed seat first appears on the occlusal surfaceof the root. When making a countersink preparationinto a divergent root, the depth of the countersink willvary across the surface. Create the minimum possiblerecessed seat on the shallow side of the preparation.In the event a portion of the original depth from the Pilot Drill canal preparation is lost due to countersinking,re- establish the full depth of the canal preparation with the Pilot Drill using the original Depth ReferenceRing Setting.24

LOCATOR ROOT ATTACHMENT SYSTEMPLACEMENT OF LOCATOR ROOT ABUTMENT (CONTINUED)5A5B5A-5BPlace a LOCATOR Parallel Post onto a 0 LOCATOR Root Abutment to act as handle. Place a 0 LOCATOR Root Abutment into each of the preparedroots and verify the proper fit and parallel alignmentof multiple Abutments. If the alignment of any of theAbutments can be improved for draw, select the mostsuitable angled LOCATOR Root Abutment (10 or20 ) and try it into the preparation to determine idealparallelism.NOTE: Make a small indexing mark on the LOCATORRoot Abutment base and the root surface to return theangled Root LOCATOR to the exact position duringcementation.66Cement the LOCATOR Root Abutment in place withdental cement of choice. Allow the cement to set. Roundoff and polish the root surface from the metal flangeto the tissue. The Parallel Post can be placed on theLOCATOR Root Abutment to protect it during polishing.Please refer to page 10 for Direct Pick-Up Techniques.25

LOCATOR ROOT ATTACHMENT SYSTEMCAST-TO COPING11mm21 CAST-TO COPINGDecoronate the root and perform endodontic therapy.Remove the desired depth of gutta percha followingstandard clinical procedures. Finish the contouring of theroot. The final reduction should place the root surface1mm above gingival tissue. Prepare with a beveledshoulder or a chamfer margin.2Hold the Cast-To LOCATOR Abutment next to thePilot Drill and set the plastic Depth Reference Ring onthe Pilot Drill to a depth that slightly exceeds the Cast-ToCoping thread length.33Size the canal using the Pilot Drill stopping at thedepth ring. The alignment of this initial preparation willgenerally follow the canal. On a non- parallel root, theresulting divergence can be corrected using an angledLOCATOR Root Abutment (10 or 20 ).44Wax LimitComplete the preparation of the site with dentalburs of preference to ensure that the cast gold copingwill completely surround the LOCATOR Cast-ToAbutment.NOTE: The outer surface on the base of the LOCATORCast-To Abutment must remain above the level of thecoping to allow the Denture Cap to snap on withoutinterference.Please refer to page 10 for Direct Pick-Up Techniques.26

LOCATOR ROOT ATTACHMENT SYSTEMCAST-TO COPING (CONTINUED)565Take an impression of the arch and of the preparedroots, capturing as much detail as possible. Pour themaster cast and prepare the dies.6Using a surveyor, place the Parallel Post with theCast-To LOCATOR Root Abutment attached in positionand parallel with other Abutments. Wax the Cast-ToLOCATOR Root Abutment directly into the die. Buildthe wax up to the bottom corner on the base of theAbutment, leaving the majority of the outer surface onthe base above the level of the coping. Remove the waxup from the die and remove the Parallel Post from theAbutment, leaving the top of the Abutment open forinvestment material to flow into.Invest and cast. Finish and polish the surface of thecoping. The Parallel Post can be placed on the LOCATORto protect it while polishing.77Snap a Denture Cap with a Black Processing Maleonto each LOCATOR Analog and verify that there is nointerference with the Denture Cap seating.Proceed with the fabrication of the prosthesis.Please refer to page 10 for Direct Pick-Up Techniques.27

MAINTENANCE OF THE LOCATOR ABUTMENTRELINE OF IMPLANT-RETAINED AND TISSUE SUPPORTED OVERDENTURES11Remove the Males from the overdenture.NOTE: Please refer to the LOCATOR Core Toolinstruction on page 5.2Using a trephine drill, remove the existing DentureCap from the overdenture.33 Place a white Block-Out Spacer around eachAbutment and press it down to the tissue. Snap a newDenture Cap with a pre-loaded Black Processing Maleonto each Abutment, pressing down firmly. Try in theoverdenture to ensure each recess is large enough toaccommodate the new Denture Cap with no interferencewith the acrylic.4A2824B4A-4BApply an adhesive to the intaglio surfaceof the overdenture and take an impression using theoverdenture as a tray. Place the overdenture into themouth. Have the patient close into the light occlusionand hold. Allow the impression material to set.

MAINTENANCE OF THE LOCATOR

TABLE OF CONTENTS 1 THE LOCATOR COMPONENT REFERENCE LIST 2 LOCATOR - THE GOLD STANDARD IMPLANT ATTACHMENT SYSTEM 3 LOCATOR - A FAMILY OF SOLUTIONS 4 LOCATOR STANDARD & EXTENDED RANGE MALES 5 LOCATOR 3-IN-1 CORE TOOL 6 LOCATOR IMPLANT