Development of Bitemarks with Different Materials and their Comparison

Abstract

Dentistry is a vast field and the use of it in forensic science makes it more important. Forensic odontology plays a very crucial role in crime scene investigations. There are many aspects of forensic dentistry, one of which is bite marks. Bite marks are very important evidence found on the crime scene. Study of them helps to identify a person based on the uniqueness of specific characteristics and arrangement of teeth. Arrangement of teeth in every individual differs and that defines its individuality. Also, there are some characteristic patterns that differ from one tooth to another of the same individual. Along with these, there are chances of getting saliva samples which can help in extraction of DNA revealing a person’s identity. The bite marks are helpful not only in the cases of humans but also in animals. They help to determine whether it belongs to an animal or a human. In addition to it, bite marks also helps in individualizing that to which animal the mark belongs to depending upon the differences in the structure of teeth of animals. To analyse and examine these bite marks, there is a requirement of proper cast. Casting is a method that actually helps to obtain the model of a particular mark and it is important that the formation of cast is proper for accurate results. The use of candle wax, wax beads and glue gun as casting materials is one of the ideas for developing the cast. All of the three are very convenient in use as they have high tolerance to water and temperature. All of the three materials are easy to use as they require very less setting time and are easy to remove from the sample. By comparing the results of all of the three casts, the best can be identified and used. Although all of the three casts are very beneficial in use as they are cost effective, easily available, easy to carry and yet the results obtained are very proper and accurate.