Technique for superimposing a color slide onto a facial cast to sculpt a facial prosthesis

Shimodaira, Kiyoshi; Fukuda, Hiroshi; Kanazawa, Takashi; Funakubo, Takashi

doi:10.1016/0022-3913(89)90316-8

Cited by 7 publications

(3 citation statements)

References 1 publication

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“…In 1980, Nusinov and Gay described a method for obtaining the reverse image of an ear by using parallel lines transferred to casts, a vertical camera capable of reproducing three dimensional objects, and tracing paper [6]. Shimodaira et al proposed superimposing a color slide onto a facial cast to sculpt a facial prosthesis [7]. Both methods are relatively complex and require special and costly equipment.…”

Section: Discussionmentioning

confidence: 99%

Restoration of Microtia by Prosthetic Method: A Case Report

Kaur

Kaura

Sharma

et al. 2020

EJMED

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Background: Microtia is one of the forms of ear loss and deformity. It is a congenital anomaly of the external ear. Social and psychological rehabilitation of such patients requires a prosthesis that is esthetic as well as has enough strength and texture to represent the natural ear. Because of financial constraints, some patients cannot afford the surgical procedure of grafting. Case report: This is a case of 17 year old female with congenital missing right ear along with facial deformity due to Lower Motor Neuron facial nerve palsy. Treatment plan: Prosthetic replacement of the missing ear was planned to improve the esthetic and social well being of the patient in an economical way. Conclusion: a definitive management of the missing ear can be done using dental implants and bar attachment if the financial condition and social acceptance with interim prosthesis is satisfactory.

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Section: Discussionmentioning

confidence: 99%

Restoration of Microtia by Prosthetic Method: A Case Report

Kaur

Kaura

Sharma

et al. 2020

EJMED

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“…Several other impression techniques have been used, such as (1) using the donor technique [3], in which the patient acts as the donor to make an ear impression; (2) dividing the cast of the remaining ear into small squares to facilitate sculpting the missing ear [3,17]; (3) using image-editing software (such as Adobe Photoshop) to assist in sculpting the prosthesis [13,17]; (4) using a color slide [17][18]; (5) obtaining a mirror image of the cast of the patient's remaining ear, using transparent sheets and a copy machine to aid in the sculpting process [17,19]; and (6) sectioning the wax pattern of the opposite ear, using a wax saw, into 1 mm-thick slices, then reversing each section and placing it on top of the previous one to create a mirror image of the original pattern [13,17].…”

Section: Discussionmentioning

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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“…There are several methods in the literature introducing the making a prosthetic ear. [3][4][5][6] A conventional sculpting procedure in the fabrication of a maxillofacial prosthesis includes conventional impression stages, time-consuming laboratory procedures, and several try-in procedures. 2 Therefore, shortening the laboratory process is challenging for a prosthodontist.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional printing technologies in the fabrication of maxillofacial prosthesis: A case report

Çevik

Kocacikli

2019

Int J Artif Organs

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Purpose: Patients with maxillofacial deformities always seek for aesthetic prosthesis. Recently, three-dimensional printing technologies have been used for dental treatments on such patients. Case report: A 24-year-old man reported to the Department of Prosthodontics for replacement of his missing right ear induced by a trauma. A magnet-retained auricular prosthesis was planned for the patient. Three-dimensional scanning was performed on the healthy side by using a three-dimensional optical scanner and the data were mirrored. The mirrored image was then imported to a software and a virtual model of the future prosthesis was obtained for the defect side. A three-dimensional printer was used to fabricate a negative mold for the mirrored image by using additive manufacturing. Initially, an impression of the defect side was made; then, the cast model was obtained in a dental flask. Magnets of the prosthesis were inserted to the acrylic resin framework on the cast model. Room temperature vulcanized silicone elastomer was mixed and poured into the three-dimensionally fabricated mold. Then, the flask was placed over the negative mold firmly. After polymerization of the silicone, the auricular prosthesis was delivered to the patient and the patient was instructed to clean the prosthesis daily. Conclusions: Three-dimensional printing technology was used for the fabrication of the patient’s missing ear. This method eliminated the conventional laboratory steps and reduced the number of stages of the fabrication of a silicone prosthesis. The negative mold of the defect side allowed us a direct fabrication of the silicone prosthesis without a need for waxing or flasking procedures.

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Technique for superimposing a color slide onto a facial cast to sculpt a facial prosthesis

Cited by 7 publications

References 1 publication

Restoration of Microtia by Prosthetic Method: A Case Report

Restoration of Microtia by Prosthetic Method: A Case Report

Comparison of two impression techniques for auricular prosthesis: Pilot study

Three-dimensional printing technologies in the fabrication of maxillofacial prosthesis: A case report

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