Facial reconstruction: Validation of the Tedeschi-Oliveira method for estimating the pronasale point in Brazilians.

Forensic facial reconstruction aids in the process of human identification by facial recognition. The nose plays an important role in this process; however, its soft tissues wither away during cadaveric decomposition. There are few studies in the area of facial recognition of the Brazilian population, especially concerning Brazilian nasal prediction guides. This study aimed to test the hypothesis that the angle formed by the tangents drawn from the rhinion and prosthion points (nose tip) is equal to 90º, as proposed by the pioneer study by Tedeschi-Oliveira et al. (2016). It is important to highlight that this is the only method to date developed to predict the nasal tip in Brazilians, and has not yet been tested in other populations. Images of computed tomography scans of 228 individuals (171 females and 57 males) were screened according to the same criteria used by the authors of the primary study. The images were analyzed using the Horos® program, version 1.1.7 - 64 bit. The mean angle studied was about 90º, and any difference between this mean and the real angle measured did not significantly compromise the accuracy of the nose tip location. The findings tested in the present study corroborate the hypothesis investigated by Tedeschi-Oliveira et. al. Therefore, we suggest that the method be used in forensic practice to estimate nose tips in Brazilians.

[1]  M. Henneberg,et al.  Anatomy of the nasal profile , 2008, Journal of anatomy.

[2]  H. Ellis,et al.  Identification of Familiar and Unfamiliar Faces from Internal and External Features: Some Implications for Theories of Face Recognition , 1979, Perception.

[3]  Koichi Sakurada,et al.  Pilot study to establish a nasal tip prediction method from unknown human skeletal remains for facial reconstruction and skull photo superimposition as applied to a Japanese male populations. , 2016, Journal of forensic and legal medicine.

[4]  Rodolfo Francisco Haltenhoff Melani,et al.  Forensic facial reconstruction: Nasal projection in Brazilian adults. , 2016, Forensic science international.

[5]  Niels Lynnerup,et al.  Validation of the New Interpretation of Gerasimov's Nasal Projection Method for Forensic Facial Approximation Using CT Data , , 2016, Journal of forensic sciences.

[6]  Stephanie Davy-Jow.  The devil is in the details: a synthesis of psychology of facial perception and its applications in forensic facial reconstruction. , 2013, Science & justice : journal of the Forensic Science Society.

[7]  D. McConathy,et al.  Relationship between the piriform aperture and interalar nasal widths in adult males. , 1991, Journal of forensic sciences.

[8]  G. Macho,et al.  An appraisal of plastic reconstruction of the external nose. , 1986, Journal of forensic sciences.

[9]  Feng Chen,et al.  Age and sex related measurement of craniofacial soft tissue thickness and nasal profile in the Chinese population. , 2011, Forensic science international.

[10]  Won-Joon Lee,et al.  Three-dimensional prediction of the nose for facial reconstruction using cone-beam computed tomography. , 2014, Forensic science international.

[11]  V. Ferrario,et al.  Age- and sex-related changes in the normal human external nose. , 2011, Forensic science international.

[12]  Pavla Zednikova Mala,et al.  Pronasale Position: An Appraisal of Two Recently Proposed Methods for Predicting Nasal Projection in Facial Reconstruction , 2013, Journal of forensic sciences.

[13]  Christopher Rynn,et al.  Prediction of nasal morphology from the skull , 2010, Forensic science, medicine, and pathology.

[14]  Carl N Stephan,et al.  Predicting nose projection and pronasale position in facial approximation: a test of published methods and proposal of new guidelines. , 2003, American journal of physical anthropology.

[15]  J. R. Costa,et al.  Craniometric Study of Nasal Bones and Frontal Processes of Maxilla , 2005 .

[16]  Carl N Stephan,et al.  On Gerasimov’s Plastic Facial Reconstruction Technique: New Insights to Facilitate Repeatability * , 2011, Journal of forensic sciences.

[17]  Christopher Rynn,et al.  Appraisal of traditional and recently proposed relationships between the hard and soft dimensions of the nose in profile. , 2006, American journal of physical anthropology.