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Case Reports
. 2017 Jul-Sep;17(3):310-315.
doi: 10.4103/jips.jips_227_16.

Refabrication of an implant-retained auricular prosthesis using clip attachment pickup technique

Sanketh Kethireddy  1 , Keerthi Kethireddy  1
Affiliations
Case Reports

Refabrication of an implant-retained auricular prosthesis using clip attachment pickup technique

Sanketh Kethireddy et al. J Indian Prosthodont Soc. 2017 Jul-Sep.

Abstract

Increased patient acceptance and widespread use have led to a greater demand for refabrication of existing maxillofacial prostheses exhibiting wear and tear. Refabricating an osseointegrated implant-retained silicone auricular prosthesis on the existing Hader bar is a challenging task if it is performed without removing it. Therefore, an attachment level impression method is utilized for the refabrication of a new prosthesis on an existing Hader bar framework without removing it from the patient's defect. This case report discusses a modification of the Mahidol University technique. This modification provides a simple, speedy, and convenient method through which the relation between the metal framework and attachments could be obtained precisely. This precision allowed for easy fabrication of the acrylic housing, which in turn results in better adaptation of the auricular prosthesis to the patient's face. Therefore, this technique offers advantages to both the prosthetist in fabrication and the patient in facilitating him continue to wear his existing implant-retained prosthesis during refabrication process.

Keywords: Attachment level impression; craniofacial implants; implant retention; indirect acrylic housing; silicone auricular prosthesis.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Examination view of the right auricular defect with Hader Bar, auricular remnant, skin reaction around abutment, and proximity of implants seen
Figure 2
Figure 2
Examination of the right auricular prosthesis, ill-fitting, thick open margins, and improper shade match
Figure 3
Figure 3
Blockout under Hader bar metal framework with carding wax on the patient
Figure 4
Figure 4
Two Hader rider clips with clip housing in place
Figure 5
Figure 5
Both the clips assembly are attached with pattern resin for orientation
Figure 6
Figure 6
Attachment impression (mute-fit) technique using monophasic vinyl polysiloxane impression material, reinforced with pieces of tongue blades
Figure 7
Figure 7
Retrieved impression, picked up clip attachments, followed by placement of tooth preparation burs before cast pour
Figure 8
Figure 8
Working model cast with preparation burs in it
Figure 9
Figure 9
Clear autopolymerizing polymethyl methacrylate housing made indirectly on the cast with clips embedded
Figure 10
Figure 10
Three-piece auricular mold after the wax try-in
Figure 11
Figure 11
Finished prosthesis with acceptable esthetic and function
Figure 12
Figure 12
Compression between new and existing prostheses
See this image and copyright information in PMC

References

    1. Subasi MG, Alniaçik G, Kalayci A, Akman S, Durmus E. Prosthetic rehabilitation of partial ear defect: 2 case reports. J Indian Prosthodont Soc. 2014;14(Suppl 1):196–201. - PMC - PubMed
    1. Rocke DJ, Tucci DL, Marcus J, McClennen J, Kaylie D. Osseointegrated implants for auricular defects: Operative techniques and complication management. Otol Neurotol. 2014;35:1609–14. - PubMed
    1. Beumer J 3rd, Ma T, Marunick M, Roumanas E. Restoration of facial defects: Etiology, disability, and rehabilitation. In: Beumer J 3rd, editor. Maxillofacial Rehabilitation: Prosthodontic and Surgical Considerations. St. Louis: Ishiyaku EuroAmerica, Inc; 1996.
    1. Chotprasert N, Srithavaj T, Santawisuk W, Hovichitr W, Visuttiwattanakorn S. Implant-retained auricular prosthesis in a young patient, 6 years follow-up: A clinical report. Mahidol Dent J. 2007;27:217–22.
    1. Srithavaj T, Wijitworawong A, Kharel A, Sanohkann S, Santawisuk W. Attachment use in designing a stable facial prosthesis: A new clinical and technical report. Mahidol Dent J. 2006;26:337–43.

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