The auricular impression: An alternate technique

Mathews, Mark F.; Sutton, Alan J.; Smith, Rick M.

doi:10.1111/j.1532-849x.2000.00106.x

Cited by 14 publications

(11 citation statements)

References 3 publications

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“…b Punching process is done to fabricate stock tray for ear placed handle enables the application of uniform pressure on the tissues to be recorded. The even application of pressure is due to the provision of 6 mm space [4] for the impression material between tray and tissue to be recorded. The use of optimal impression material enhances the inherent advantages of the material while avoiding the disadvantages.…”

Section: Discussionmentioning

confidence: 99%

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Prefabricated Stock Trays for Impression of Auricular Region

Shetty

Anandkrishna

Purwar

et al. 2010

J Indian Prosthodont Soc

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The conventional methods of impression making for maxillofacial defects are cumbersome and time consuming for both patient and operator. This study focuses upon standardizing and simplifying the impression making methodology for auricular prosthesis with the help of prefabricated stock trays for auricular region. The stock trays were designed on positive replicas of anatomical structures, broadly divided into long and narrow, short and broad and long and broad ear. For each stock tray, impressions of auricle, of patients of different morphology were made with plastic funnels of different shape and size ensuring at least 6 mm of space between the anatomical part and inner surface of funnel and master cast was obtained. Subsequent adaptation of wax was done and fabrications of stock stainless steel trays were done. A standardized stock tray for making of auricular impressions was developed. From this innovative technical procedure it is possible to get an accurate impression of auricular defects now by the use of prefabricated stock trays rather than the cumbersome conventional method.

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Section: Discussionmentioning

confidence: 99%

“…Reference lines [4] were drawn with the help of measuring scale using skin marker (Hematoxylin pencil). The vertical reference line passes through the most superior and inferior position of ear and horizontal line representing the ala-tragus line was extended posteriorly.…”

Section: Selection Of Subjectmentioning

confidence: 99%

Prefabricated Stock Trays for Impression of Auricular Region

Shetty

Anandkrishna

Purwar

et al. 2010

J Indian Prosthodont Soc

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“…Consideration should be made with regard to the volume of impression material applied to the remnant because the weight of the material may cause distortion [11]. Soft tissue distortion is less because of the absence of an overlying stone matrix that is present in the CIT [2]. TLIT made with subjects in the upright position meets the previously mentioned concerns.…”

Section: Discussionmentioning

confidence: 99%

“…Impression techniques play a vital role in accurate reproduction of the affected and unaffected ears, orientation of the ear during wax try-in, and fabrication of ear prostheses. Several impression techniques are described in the literature, including using plaster in a two-piece mold, reversible hydrocolloid enclosed by a wax collar, irreversible hydrocolloid contained in a wax or thermoplastic ring, irreversible hydrocolloid in a rigid tray, and the conventional impression technique (CIT) [2].…”

Section: Introductionmentioning

confidence: 99%

Comparison of two impression techniques for auricular prosthesis: Pilot study

Mohamed¹,

Mani²,

Seenivasan³

et al. 2013

J Rehabil Res Dev

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Abstract-The purpose of this article was to compare the accuracy of a new impression technique, the triple-layer impression technique (TLIT), with the conventional impression technique (CIT) to fabricate an auricular prosthesis. Fifteen male subjects (aged 22-45 yr) were selected. Ten markings were made on the subject's ear (super aurale [sa], sub aurale [sba], pre aurale [pra], post aurale [poa], A, A1, B, B1, C, and C1) and five measurements (sa-sba, pra-poa, A-A1, B-B1, and C-C1) were made. Custom-made trays were used to record impression in CIT and TLIT. Impressions were made using alginate, and models were cast with type IV gypsum product. Markings were transferred on the cast. Measurements were rechecked on the models. Distribution analysis of difference in measurements between the two impression techniques and the subject's actual values was evaluated. Sign test was used to analyze the statistical significance. Statistically significant differences were found in measurements A-A1, B-B1, and C-C1 between the two techniques when compared with the subject's actual dimensions (p < 0.01). TLIT was found to produce accurate models when compared with CIT. The TLIT used in the study was cost effective, less technique sensitive, and tailor made to reduce chairside orientation time during wax try-in appointments for rehabilitating patients, especially those with unilateral auricular defects.

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“…The making of impression of the normal ear is difficult as the helix may get distorted under the weight of the impression material. Therefore, a modified impression technique was used, which combined the advantages of techniques used by Kubon et al 9 and Mathews et al 10 If preoperative casts are not available, the prosthesis can be sculpted from the beginning (wax or clay) or by the donor technique. Wax pattern of the mirror image can be obtained from the ear bank or by impression from a donor.…”

Section: Findings and Outcomesmentioning

confidence: 99%

Prosthetic rehabilitation of auricular defect

Arora¹,

Pasam²,

Gilra³

et al. 2013

Prosthetics &Amp; Orthotics International

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Background: The absence of external ear may be due to congenital, traumatic, or surgical causes. Many case reports only describe impression techniques to record details of the defect side and the natural ear. The purpose of this case report is to explain in detail simple clinical and laboratory procedures involved in fabrication of ear prosthesis. Case Description and Methods: The use of three-part mold helps in the application of pigmented silicone in specific areas. The use of direct adhesive fixation provides the best esthetic result and if properly used the most satisfactory form of treatment. Findings and Outcomes:The patient was satisfied with the life-like appearance of the prosthesis. The use of direct adhesive fixation gave the patient a sense of security and improved his confidence. Conclusion:The technique described is economical, and additional steps of implant placement are avoided. The esthetics of the prosthesis made by hand carved clay pattern provides good details. Clinical relevanceThe technique describes the method of direct adhesive fixation of the prosthesis giving it a life-like appearance. The confidence of the patient is also restored.

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The auricular impression: An alternate technique

Cited by 14 publications

References 3 publications

Prefabricated Stock Trays for Impression of Auricular Region

Prefabricated Stock Trays for Impression of Auricular Region

Comparison of two impression techniques for auricular prosthesis: Pilot study

Prosthetic rehabilitation of auricular defect

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