Assessment of cheiloscopy in sex determination using lysochrome - A preliminary study

Ramakrishnan, Prabhath; Bahirwani, Shraddha; Valambath, Smruthi

doi:10.4103/0975-1475.172434

Cited by 15 publications

(21 citation statements)

References 10 publications

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“…We used the classification by Suzuki and Tsuchihashi because it is the most commonly used classification system in the literature (7,12,14,23) and it is easy to use and interpret (24). Lip prints are used in association with critical issues such as human identification and criminal investigations.…”

Section: Discussionmentioning

confidence: 99%

“…This pattern was not seen at all in the upper lip of females. In the recent years, some authors have claimed differences in lip print patterns of males and females (7,23). For example, Costa and Caldas (18) studied a group of the Portuguese population and reported type III to be the most dominant pattern in males (52%) and type II to be the predominant one in females (44%).…”

Section: Discussionmentioning

confidence: 99%

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Morphological patterns of lip prints in an Iranian population

et al. 2016

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BackgroundLip prints are verified to be unique to an individual and stable over time; hence they have potential for human identification purposes. The aim of this study was to assess the individuality and variability of lip prints in an Iranian population for the first time. We also sought to assess the possibility of sex determination via lip printing.Material and MethodsLip prints of 96 individuals including 22 males and 74 females were recorded on a plain white paper using a dark-colored lipstick and 50 mm of Scotch tape. Each lip print was divided into six sextants and studied independently by two observers using a magnifying lens to examine the lip grooves. The Suzuki and Tsuchihashi’s classification was used to define the lip patterns and the data were statistically analyzed.ResultsIn the present study, no identically similar lip prints were observed. Type V was the most predominant pattern recorded in the study sample (33.16%), followed by type I (24.13%), type II (18.75%), type IV (11.63%), type I’ (9.72%) and type III (2.60%). In addition, no statistically significant difference was observed in the lip print patterns of males and females.ConclusionsIt can be concluded that lip prints are unique and their analysis may enable human identification. Key words:Forensic anthropology, forensic dentistry, forensic medicine, iran, lip.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Morphological patterns of lip prints in an Iranian population

et al. 2016

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“…proved that lysochrome dyes could be used in the development of latent lip prints and could be applied in sex determination with an individual at its accuracy. [ 16 ] With regard to the study method, physically recording lip prints is still a labor-intensive and technique-sensitive process. Prabhu et al .…”

Section: Discussionmentioning

confidence: 99%

Morphological patterns of lip prints in Mangaloreans based on Suzuki and Tsuchihashi classification

Jeergal¹,

Pandit²,

Desai³

et al. 2016

J Oral Maxillofac Pathol

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Introduction:Cheiloscopy is the study of the furrows or grooves present on the red part or vermilion border of the human lips. The present study aims to classify the characteristics of lip prints and to know the most common morphological pattern specific to Mangalorean people of Southern India. For the first time, this study also assesses the association between gender and different lip segments within a population.Materials and Methods:A total of 200 residents of Mangalore (100 males and 100 females) were included of age ranging from 18 years to 60 years. Materials used to take the impression of lips included red lipstick, A4 size white bond paper and cellophane tape. The prints obtained were scanned using a Canon Image Scanner and stored in a folder on a personal computer. The images were cropped and inverted in gray scale using Adobe Photoshop software. Each lip print was divided into eight segments and was examined. Suzuki and Tsuchihashi's classification (1970) was used to classify the types of grooves, and the results were statistically analyzed. Six types of grooves were recorded in the Mangalorean's lips.Statistical Analysis:Association between gender and different lip segments was tested using Chi-square analysis in the given population.Results:In males, the groove Type I' was the highest recorded followed by Type III, Type II, Type I, Type IV and Type V in descending order. In females, Type I' was the highest recorded followed by Type II, Type III, Type IV, Type I and Type V in descending order.Conclusion:Males and females displayed statistically significant differences in lip print patterns for different lip sites: lower medial lip, as well as upper and lower lateral segments. Only the upper medial lip segment displayed no statistically significant difference in lip print pattern between males and females. This shows that the distribution of lip prints is generally dissimilar for males and females, with varying predominance according to lip segment.

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“…Nevertheless, the brushing technique could destroy a print. Therefore, lysochrome powder was applied using fine dusting brushes specifically designed for forensic examinations, so as not to smudge the print or to allow “clumping” of the powder in specific areas 14–16 . Thus, soaking the vaseline‐treated lip print in roselle extract was used as the staining method instead of the brushing technique so as to avoid interference with the lip print.…”

Section: Resultsmentioning

confidence: 99%

Vaseline treatment combined with a natural dye extract to enhance lip print contrast images

Mebuathong

Kangsanan

Chingthongkham

et al. 2021

Coloration Technology

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Fingerprinting and DNA comparisons are the most commonly used methods in criminal investigations. However, lip prints can also be used as a supplementary tool because of the uniqueness of morphological patterns. A lip print not only can be used for personal screening by its pattern, it also carries genetic information that enables personal identification. Nowadays, there are various kinds of plants that are used for biological and histological staining due to an increasing market value associated with their application and sustainability. This study assessed the ability of natural dye extract to develop latent lip print contrast images and to preserve DNA for short tandem repeat analysis. Results revealed that roselle extract showed potential for the development of vaseline‐treated lip print contrast images on bond paper. Moreover, when roselle extract‐stained paper was compared with unstained paper, short tandem repeat profiles were not affected. Therefore, such dyes could be utilised for the development of latent lip print contrast images and their application could be extensively used to establish a personal identification database for reference in criminal investigations.

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Assessment of cheiloscopy in sex determination using lysochrome - A preliminary study

Cited by 15 publications

References 10 publications

Morphological patterns of lip prints in an Iranian population

Morphological patterns of lip prints in an Iranian population

Morphological patterns of lip prints in Mangaloreans based on Suzuki and Tsuchihashi classification

Vaseline treatment combined with a natural dye extract to enhance lip print contrast images

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