The Effect of High Temperature Heating on Indentation Resistance of Cobalt Chromium Alloy Plates as Denture Labeling for Forensic Identification ( Research Report )

Endang Prawesthi, Rosita Gusfourni, Didik Marsigit

Abstract


The labeled denture is important to identify people who have memory loss or identify of  bodies in mass disasters, mainly due to the fires. Denture labeling made of tinfoil or paper laminated, but this form can easily be damaged if exposed to high temperatures. Cobalt Chromium (CoCr)  Alloy metal is resistant to high temperatures which has melting point 1150º-1500ºC, so that possibility can be used as a tool in identification.  Purpose: To determine  indentation resistance  of  CoCr alloy plates on heating with high temperatures and be expected the use of its can be alternatives as denture labeling for forensic identification. Methods:  Experimental Laboratory with sample form of plates made of CoCr metal  cast and measuring 30X10X2 mm, with  depth of indentation is 1.5 mm. The plates were heated with temperatures 400º, 800º,1050ºC and  duration 5 and 15 minutes in the preheating  furnace machine. 42 samples were divided into 3 groups (temperature of heating) and each group was divided into 2 groups again (duration of heating). Results: The size of depth and width of indentation (mm) of  plate for all groups, there was no significant difference between before and after heating, except in groups heating to a temperature of 1050°C for 15 minutes  (P<0.05). Conclusions: Heating with high temperature is not enough to make the plate damaged and deformed, so labeling indentation  can still be read clearly. The use of CoCr  plate can be alternatives as denture labeling.

Keywords


High temperature, Heating, Denture labeling and CoCr plate

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References


. Prawestiningtyas E,agus MA. Identifikasi Forensic Berdasarkan Primer dan Sekunder sebagai Penentu Identitas Korban pada Dua Kasus Bencana Masssal. Jurnal Kedokteran Brawijaya,Vol.XXV, No.2, Agustus 2009.

. El-Ghohary MS, Khaled MS,Mohamed MES, Tamer MN. A New Denture Labelinf System as an Ante-Mortem Record for Forensic Identification. Mansoure J.Forensic Med. Clin. Toxicol. Vol. XVIII, No.2, pp. 67-69 , Juli 2009.

. Colvenkar Shreya S. Lenticular Card: A New Methode For Denture Identification. Indian J.Dent. Res; 21: pp.112-4, 2010.

. Nalawade Sonali N, Sanjay BL, Gangadhar SA, Aruna JB. A Simple and Inexpensive Bar-coding Technique for Identification. J Forensic Dent Sci; 3: pp. 92-4, 2011.

. Paventi J. Ingredients In Denture Cleaners, 2013 (cited 2014 march 24) Avalaible from: http://www.livestrong.com/ article/121826-ingredients-denture-cleaners/.

. Srinivasan Suganya, Chindrambaranathan AS, Balasubramanian M, Moni BM, Reddy RJ. Evaluation of The Efficaccy of Titanium Plates Denture Markers Unders Various Heat Sources and Pressure- an In vitro Study. J Forensic Dent Sci, Jan-April; Vol.7(1); pp. 59-62, 2015.

. Wataha JC, Alloys for Prosthodontic Restoration. J. Prosthet Dent, 87; pp. 351-63, 2002.

. Patidar KA, Parwani R, Wanjar S. Effect of High Temperature of Different Restorations in Forensic Identification: Dental Samples and Mandible. J Forensic Dent Sci Jan, Vol.2 (1); pp. 37-43, 2010.

. Bagdey SP, Moharil RB et al. Effect of Various Temperatures on Restored and Unrestored Teeth: A Forensic Study. J dental Forensic Dent Sci Jan;6(1): pp. 62-6, 2014.

.Alljabbar, Pemuaian. Dunia Fisika. 2008. (cited 2016 Oct 18). Avalaible from: https://alljabbar.wordpress. Com /2008 /03/30/pemuaian/ .

.Prihastari L . Dental Material : Bahan Logam dalam kedokteran gigi dan Mulut. ( cited 2016 Oct 25). Avalaible from: http://www.academia.edu/9995848/Dental-Material-Bahan-Logam-dalam-kedokteran-gigi-dan-Mulut.




DOI: https://doi.org/10.24203/ajas.v7i1.5670

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