A Review of Lip Print as A Tool in Forensic Dentistry (original) (raw)
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Lip prints Role in forensic odontology
Identification plays a major role in any crime investigation. The pattern of wrinkles on the lips has individual characteristics like fingerprints. Cheiloscopy is a forensic investigation technique that deals with identification of humans based on lips traces. In the past decades, lip‑print studies attracted the attention of many scientists as a new tool for human identification in both civil and criminal issues. The lip crease pattern is on the vermilion border of the lip, which is quite mobile and lip prints may vary in appearance according to the pressure, direction and method used in making the print. It concludes by enlightening the readers with the fact that the possibilities to use the red part of lips to identify a human being are wider than it is commonly thought.
A study of lip prints and its reliability as a forensic tool
National Journal of Maxillofacial Surgery, 2015
The need for human identification has unfortunately risen in the new millennium owing to the growing challenges of terrorism, natural disasters, and high crime rates. Identification by dental means is made by comparing the antemortem and postmortem records, which include details of dental hard and oral soft tissues. Anatomical structures like rugae, pigmentation, and lip prints remain constant and this can be included in the antemortem records, to be used as evidence in personal identification and criminal investigation. Research documentation on the use of lip prints in forensic dentistry is scanty, in comparison to literature on the widespread practice of relying on fingerprints for personal identification.The study of lip prints termed as 'Cheiloscopy' is derived from the Greek words 'CHELIOS' (lips) and 'SKOPEIN' (see). [1] The importance of cheiloscopy lies in the fact that lip prints are unique for each person, like fingerprints and palatal rugae. Furthermore, lip grooves are permanent and unchangeable, as observed in the literature. [1-4] In this study we attempt to assess the reliability of lip prints as a forensic tool. We have compared and studied the lip print patterns in males and females of different age groups, assessed inter-and intraobserver bias in recording this data, assessed the changes in patterns over a period of time, and indirectly registered lip prints from objects and matched them with directly registered patterns.
Lip print pattern: an identification tool
Health Renaissance, 2014
Background: Cheiloscopy is a forensic investigation technique that deals with the identification based on lip traces. Based upon the research, it was established that the arrangement of lines on the red part of human lips is unique for each human being. Objectives: To analyze and compare quadrant wise and sex wise predilection of lip print pattern. Methods: A total of 200 (18-25 years) Nepalese undergraduate students of BPKIHS were selected. Thin layer of lip-stick was applied on the lips of these sub-jects. The hinged por-tion of a folded paper was inserted between the lips and the sub-jects were asked to press their lips onto it. Only middle 10 mm of both upper and lower lips were taken as study area. The lip prints, thus obtained were stud-ied on the basis of Tsuchihashi's classification. Chi square test was used to analyze and compare the lip print patterns in all the quadrants of males and females, with the level of significance p<0.05. Results: Type I pattern was predominant in all the four quadrants among males (62%, 56%, 54%, 57% in first, second, third and fourth quadrants respectively). In female also type I was predominant in 2 nd , 3 rd and 4 th quadrant (40%, 45%, 51% respectively) whereas in 1 st( right upper) quadrant type II pattern was predominant (37%). Conclusion: Lip print pattern can be used as an additional tool for personal identification and sex determination. Further work on the subject can help to make cheiloscopy a practical reality in the forensic identification process.
LIP-PRINTS -EVIDENCE LOST TO IMPERTINENCE
Asian Journal of Pharmaceutical and Clinical Research Journal, 2022
Objective: Identity means determination of individuality of a person beyond doubt, based on physical characteristics unique to an individual. Article-6 of the Universal Declaration of Human Rights states that everyone has a right to identity as a person. The wrinkles and grooves on labial mucosa form a characteristic pattern and the study of these is referred to as cheiloscopy. These are unique to an individual just like the fingerprints thus, hold the potential for identification purpose. This study was designed to evaluate lip-prints as a tool of forensic identification. Methods: The study was done in North Haryana on 1000 subjects aged between 15 and 25 years over a period of 2 years. Purposive sampling was done and subjects were asked to produce lip prints on bond paper, which were examined based on Suzuki and Tsuchihashi classification. Data obtained were analyzed using Student's t-test. Results: It was found that no two individuals had similar lip prints. Type I pattern was most common followed by Type II whereas Type V was least common. Conclusion: However, till date, no reliable system with repeatability has been developed for studying lip-prints especially to remove observer bias. Nor any comprehensive studies are available comparing lip-prints in live and dead subjects to authenticate their forensic identification potential, raising question at forethought and purpose of practical application of research in the field of cheiloscopy.
Personal Identification through Lip Prints
International Journal of Forensic Sciences
Personal identification is one of the main aspects of criminal investigation. The study of lip prints known as cheiloscopy has helped to find and help in the identification of the perpetrators and victims. There is a need to study lip prints since according to the review of literature only mere studies are done over this topic. The present study focuses on different aspects of lip prints which includes the history and development of lip print patterns, various lip print patterns and its classifications, recording of the lip prints and the methods used in development of lip print patterns found in the crime scene. This descriptive paper inculcates the readers with a complete and brief knowledge about the lip prints and its importance as a tool for personal identification.v
2014
Cheiloscopy is a forensic investigating technique that deals with identification of humans based on lips traces. Lip print has already proven to be unique to each individual, its examination and comparison at the crime scene with those of suspected person might prove to be an important tool in persuasion to secure law and justice. The prime aim of the study was to evaluate the predominant pattern of lip print by using two different methods and to study the uniqueness of lip prints. The pattern of lip prints was recorded by two methods and studied along the entire length and breadth and classified according to Suzuki and Tsushihashi’s classification. No two lip prints matched with each other, thus establishing the uniqueness of lip prints. Type I and I’ pattern was predominant in females; type II pattern showed almost equal distribution between males and females whereas type III, IV and V was seen to be more prominent in males. Both methods of recording lip print are equally accurate.
A study of lip prints in relation to gender, family and blood group
International Journal of …, 2010
Background: In forensic identification, the mouth allows for a myriad of possibilities. The use of lip prints is not so popular but exists as a methodology in forensic science. Hence Dental surgeon has to actively play his role in personal identification and criminal investigation, as his evidence would be very much useful in law and justice. Objective: The objective of present study was to evaluate in depth the lip print patterns in relation to gender, its consistency for a period of time, to ascertain whether there is any hereditary pattern in lip prints among families with siblings and twins, and thereby, to investigate whether the lip prints are unique to any blood group in the population under investigation. Materials and Methods: This study was conducted on 100 students and 10 family with children and twins respectively. The lip-print of each subject was obtained on a microscopic glass slide without applying anything and developed with carbon powder dusting with ostrich brush. Blood group information was noted. Results: Our study showed, in boys, the Type I (complete vertical), in girls, Type II (branched) and among both, type II (branched) lip print pattern to be most prominent pattern. The present study showed a good consistency of the lip print pattern when observed for a period of six months consecutively. The study has not found any statistical correlation of lip print with family members or even any correlation between blood group and lip prints. Conclusion: Although lip print identification has been utilized in the court of law in isolated cases, more research needs to be conducted in this field, with regard to confirmation of its uniqueness. Hence chelioscopy has to be carried out in depth on larger sample size using newer scientific technologies.
Cheiloscopy as an adjunct to forensic identification: a study of 600 individuals
PubMed, 2008
Cheiloscopy deals with examination of system of furrows on the red part of human lips. The present study was undertaken to classify lip prints, study their variations, determine the most common pattern in the study population, evaluate differences in lip prints between males and females and between different age groups, ascertain whether there is any hereditary pattern and thereby investigate their potential role in personal identification. Lip prints of 600 individuals, including 52 families, of ages ranging from 3 to 83 years were obtained using lipstick and two kinds of adhesive tape. The lip prints were analyzed using Adobe® Photoshop® software and classified according to Tsuchihashi classification. Patterns of lip prints occurred in diverse combinations. The patterns were similar between males and females and varied among different age groups. Some hereditary resemblance was observed between parents and offspring. Lip prints have a good potential for use in criminal investigations. They have been used only occasionally despite their frequent occurrence at crime scenes. A place for cheiloscopy is recommended within the scope of forensic odontostomatology, along with other means of forensic identification.
Aid for Personal Identification: Stereomicroscopic Morphological Patterns of Lip Print
Toxicology and Applied Pharmacology Insights, 2019
The lip prints being uniform throughout the life and characteristics of person can be used to verify the presence or absence of a person from the crime, provided there has been consumption of beverages, drinks, usage of cloth, tissues or napkin etc., at the crime scene. The objectives of this study were to find out the distribution of different lip print patterns among Myanmar males and females and to determine the relationship between lip prints and blood group. Thin layer of lip-stick was applied on the lips of these subjects. The hinged portion of a folded paper was inserted between the lips and the sub-jects were asked to press their lips onto it. Only middle 10 mm of both upper and lower lips were taken as study area. The lip prints, thus obtained were studied on the basis of Tsuchihashi’s classification. There was significant difference between male and female lip print patterns. Type II was most common in both gender. Type I was more common in male and Type II, III and IV wer...
Reliability of lip prints in personal identification: An inter-racial pilot study
Journal of forensic dental sciences
Forensic science is a branch of science that deals with the application of science and technology in solving a crime and this requires a multidisciplinary team effort. The word "Forensic" is derived from the Latin word, "Forensis" which means the study of public. Dental professionals should develop interests in contributing to legal issues. To study the lip prints among people of different races. Descriptive study. The present study comprised of ninety subjects of which Group A comprised of Africans, Group B comprised of Dravidian, and Group C of Mongoloid race. Each group was then further divided into 15 males and 15 females for whom the lip prints were recorded and evaluated. ANOVA test. ANOVA statistical analysis was used to compare three races of African, Dravidian, and Mongoloid races. The observed data among male and female were found to be significant with a P = 0.000492. The present study showed a significant difference in lip pattern among the three race...