Raising the Bar to Meet Demand For Implant-Supported Dentures

Frank Munzenmayer, CDT · Technical · Apr 2012

  • Figure 1A
    The implants are prepared to be picked up in the impression.

  • Figure 1B
    The implants are prepared to be picked up in the impression.

  • Figure 2
    Once the model is prepared, the proper adaptor heights for a perfect alignment of the bar to the occlusal plane are selected. The goal is to achieve at least a 1mm clearance between the bar and the tissue. The available adaptor heights range from 1mm to 5mm; for this case, two 1mm, one 2mm and one 3mm adaptors are used.

  • Figure 3A
    The tube bars are detached. Notice that the small ball joints have two stems to accommodate more than one bar. These will be attached to the anterior implant adaptors with the hex screwdriver; the larger ball joints will be attached to the posterior implant adaptors.

  • Figure 3B
    The tube bars are detached. Notice that the small ball joints have two stems to accommodate more than one bar. These will be attached to the anterior implant adaptors with the hex screwdriver; the larger ball joints will be attached to the posterior implant adaptors.

  • Figure 4
    The large ball joint is screwed onto the implant adaptor and only slightly tightened.

  • Figure 5
    The tube bar is attached to the ball joint. The tube bar measuring gauge is adapted to the bar which is then measured to the precise length by resting the tube bar gauge to the adjacent implant adaptor.

  • Figure 6
    Once the desired length of the bar is determined, the screw on the tube bar gauge is tightened which locks in the desired bar length.

  • Figure 7
    The bar is secured to the measuring gauge and sectioned with the separating disk.

  • Figure 8
    The sectioned bar is adapted to the large ball joint and connected to the stems of the large and small ball joints.

  • Figure 9
    The procedure is repeated for the remaining tube bars.

  • Figure 10
    Since the minimum distance allowed by the SFI Bar® System is 8mm between implant centers, it’s necessary to cut the supporting joints between the ball joints. The ball joints are placed on the model, the joint stems are placed parallel and cut directly on the model.

  • Figure 11
    The titanium clip is pre-measured and sectioned to hold one insert per section. The maximum number of full sections is measured and cut to size.

  • Figure 12
    After the clip has been sectioned, the vinyl inserts are placed in the clip with the insertion tool provided. The vinyl inserts are available in three retention strengths and color-coded accordingly: yellow is light, red is medium and green is high.

  • Figure 14
    For this case, the red vinyl inserts are positioned in the sectioned clips and the clips are positioned onto the assigned bar. The denture is placed on the model and the clips are incorporated into the denture with cold-cure acrylic. The denture is trimmed and polished, and the case is delivered to the doctor’s office for insertion.

  • Figure 15A
    The denture is now ready for final insertion in the mouth.

  • Figure 15C
    The denture is now ready for final insertion in the mouth.

  • Figure 12C
    The denture is now ready for final insertion in the mouth.

About The Author
Frank Munzenmayer, CDT

Technical/Education Specialist at Independent

Frank Munzenmayer, CDT, is a Technical/Education Specialist. He graduated from New York City College of Technology in Brooklyn, NY, and worked as a C&B/ceramic technician for major dental labs...

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