Lip Print Pattern Research Articles

Lip Print Analysis: A Study on Patterns and Forensic Applications

Lip prints are lines, also known as grooves and fissures, on the skin that form at the junction of the labial mucosa and the lip's exterior surface. The study of these lip prints is known as chelioscopy. They are known to follow a pattern, which has been classified into multiple categories by various experts. Suzuki & Tsuchihashi's classification proved to be the most popular. They are also noted for having a few distinguishing characteristics that aid in determining a person's personality. The current study was conducted to examine quadrant-wise patterns and differences between males and females. In our study, the most prevalent lip print in males was type I (32.91%), followed by type 3 (22.50%). In females, type 1 was the most common (39.16%), followed by type 3 (20%). Study found significant variations between males and females in lower lip print patterns.

Identification of Fingerprint Pattern and Lip Print Pattern in Females of Type 2 Diabetes Mellitus as a Biomarker

Diabetes mellitus (D.M.) is a chronic metabolic disorder that has increased worldwide. Fingerprints and lip prints are noninvasive procedures that are genetically used in criminal cases and to determine genetic disorders such as Diabetes mellitus type 2. Dermatoglyphics is the epidermal ridge configuration, the ridged skin on our fingertips, palms, and toes. There are three types (Whorl, et al.). Cheiloscopy, derived from the Greek word (cheilos), which means lip, is the study of crinkles and grooves that are perceptible on our lips and unique. We conducted our research with 90 females, 45 were with (DMT2), and 45 were normal females over 30 years old. The samples were collected in different Kurdistan regions (Erbil City, Qaladza Town, Koya Town, and Koya University). We collected all 10 (ten) fingerprint patterns and divided them into Whorl, loop, and arch using an ink pad. Also, lip samples were collected by using lipstick on A4 paper. According to our research, the predominant fingerprints and lip prints in females with type 2 diabetes were loops for both hands (right (31.1%) and left (28.4%)), and for lips, the print was intersected grooves (28.9%). The predominant fingerprint and lip print for normal females were also loops in both hands (right (28%) and left (25%)), and the lip print was complete vertical grooves (42.2%). The study showed no association between fingerprint pattern and diabetes mellitus type 2 and cannot be used as a biomarker for it. However, there is a clear association between lip print pattern and diabetes mellitus type 2, and it can be used as a specific biomarker.

ASSOCIATION OF CHEILOSCOPY, DACTYLOSCOPY, AND PALATAL RUGOSCOPY WITH PERMANENT MOLAR RELATIONSHIP IN CHILDREN

Background: To record and study the correlation of the predominance of recorded cheiloscopic, dactyloscopic and palatal rugoscopic patterns with molar relationship in 8-15 years of children in order to determine if there exists any association between them. Material and Methods: 505 children of age group 8-15 years of old with completely erupted 2nd permanent molars upto occlusal table were recruited and angles molar relation was recorded in the proforma. Lip prints of these subjects were recorded with lipstick-cellophane method and middle 10mm of lower lip was analysed for the lip print pattern as suggested by Sivapathasundharam et al. The patterns were classified based on Tsuchihashi and Suzuki classification. The patent prints of finger were recorded in the performa and analysed according to Michael Kucknas method. The palatal rugae was obtained by photographs and alginate impression of the upper arch for each patient and were defined using a sharp graphite pencil under adequate light and magnification and were recorded according to the classification given by Thomas and Kotze classification. Results: In cheiloscopic patterns: Type I pattern was found to be the most predominant cheiloscopic pattern in class I and class III molar relation whereas Type II pattern in class II molar relation. The composite patterns showed the most prominent dactyloscopic patterns in class I and class II molar relation and loop patterns were found as the most prominent in class III molar relation. In case of rugoscopic pattern in class 1 and class 3 molar relation group, the curve pattern showed the most prominent and wavy pattern in class 2 molar relation. No statistical significance was found in all the three parameters. Conclusions:co -relation of the lip, finger and palatal rugae patterns with molar relation might aid in the early diagnosis and interception of malocclusion among paediatric patients as it is easily accessible, economical and non-invasive marker for the aforementioned conditions.Further investigations, may be required on the relationship between cheiloscopic, dactyloscopy and rugoscopic patterns with malocclusion in order to substantiate the findings presented herein.

Multimodal Biometric Analysis: Exploring Lip Print, Fingerprint, and Blood Group Correlations in the Firozabad Populations

Abstract Aim: This study aimed to establish a relationship between blood groups, fingerprint types, and lip prints that can be utilized to distinguish between genders when identifying a person. Materials and Methods: The study was conducted among 200 female and male participants ages 28 of Firozabad-based populations. Along with the blood types, finger, and lip print patterns were also gathered. For statistical analysis, SPSS Normal H. Nie, standford, california, united states was employed. The qualitative factors’ frequency and percentages were determined. Results: In the present study, overall Type II lip print in males and Type III lip print in females, loop fingerprint pattern and blood group O(+)ve in both sexes were most prevalent, and our findings were matched with the study of Harsha and Jayaraj, in which Type II (39.9%), loops 27 (42.2%), and blood group O(+)ve were observed predominantly. Conclusion: Personal identification of an individual can be greatly aided by personal characteristics such as blood group type, fingerprints, and lip prints. The most frequent patterns in our study were the Type II lip pattern in the males and Type III lip pattern in females, blood group O+, and the loop fingerprint pattern.

Study of Lip Conditions Associated with Lip Print Patterns: A New Perspective on Cheiloscopy

Study of Lip Conditions Associated with Lip Print Patterns: A New Perspective on Cheiloscopy

Evaluating Digital Photography for Lip Print Recording: Compatibility With Traditional Classification Systems.

Direct digital photography for lip print recording is a recent trend, and there is a dearth of systematic research on the analysis of the recorded prints with existing clip print classification systems. This study aims to compare the accuracy of the digital photographic method in lip print recording, comparing it with traditional methods, and assessing the suitability of commonly used lip print classification for analyzing lip prints recorded by photographic method. A total of 72 participants aged between 20 and 26 were included. The lip print recording process involved photographing the lips without and with lipstick, followed by recording the lip print with cellophane tape on bond paper. The prints collected using the different methods were analyzed and compared for agreement, and the data were analyzed statistically. Inter-observer reliability was high for all methods (>0.800). The distribution of lip print patterns differed across the methods, suggesting a potential influence of the recording technique. The agreement between the conventional method and both digital methods was moderate (kappa=0.449-0.517). The agreement between digital methods with and without enhancement was also moderate (kappa=0.718). Notably, digital photographs with enhancement tendto have a higher positive agreement for several lip print types. Digital photography is a potential method for lip print recording. However, this study highlights the need for the calibration of lip print classification systems for digitally recorded lip prints. Further research is needed to refine the use of digital photography in forensic lip print analysis and to explore its integration with artificial intelligence for biometric identification.

Correlation and Comparison of Tongue Print and Lip Print with Blood Group among Dental Students of Jharkhand.

This research set out to determine whether or not there was a connection between the types of lip print patterns found on people's lips and their blood types, as well as between the tongue print patterns found on people's tongues and their blood types. One hundred and three females and 51 males participated in our research after providing informed permission after hearing about the study's objectives and potential therapeutic applications. One hundred and three females and 51 males participated in our research after providing informed permission after hearing about the study's objectives and potential therapeutic applications. While we did find gender differences in lip print and tongue pattern distribution and blood group, our research did not find statistically significant outcomes between these variables.

Heredity and Forensic Implications of Lip Prints among Indian Twins and Non-Twin Siblings: A Cheiloscopy Study.

This study aimed to assess the lip prints of Indian twins and non-twin siblings to evaluate the existence of heredity in the lip prints of these individuals. The study employed a blind, cross-sectional, quantitative approach with an inductive method and extensive direct observation. The sample consisted of 30 twins and 30 non-twin siblings, divided into three groups based on gender with 10 subjects in each subgroup. All participants were aged between 10 and 30 years and were instructed on the methods and techniques involved in the study. The lip prints of participants were recorded using dark-colored lipstick, bond paper, cellophane tape, and a brush, and were examined for lip thickness measurement (in mm), classification of lip commissures, and assessment of groove patterns. The findings were then analyzed to determine the pattern of lip prints among twins and non-twin siblings. Cheiloscopy, the forensic investigation technique based on lip trace identification, could benefit from this study's findings as it explores the existence of heredity in lip prints of Indian twins and non-twin siblings.

Analysis of total lip score system and total groove score for gender identification: A cross-sectional study.

Endless ink and pixel space have been spent to validate the use of cheiloscopy classification systems in the field of identification. It is becoming evident that lip-print patterns may provide indications about an individual's gender, race, occupation, habits, blood type, and paternity. Over the course of time, much data have been collected on a substantial population in this field. In the present study, we strive to see how well a noble total lip scoring (TLS) system works in identifying a person's gender among the College of Dentistry students. We also quantified the total groove score (TGS) and compared it with each quadrant for better authentication of the set study design. A cross-sectional descriptive study was conducted among 60 dental students (30 males and 30 females), with an age range of 18-30 years. Lip prints were recorded using the writing pad method and subsequently digitalized by capturing the images using Adobe Photoshop CS 6 Extended Version, counted and summed up, quadrant-wise, in both upper and lower lips. The TLS and TGS between males and females were statistically calculated using the Jamovi project. The mean value for TLS for males (n = 402; SD ± 92.1) is higher than that for females (n = 348; SD ± 86.1). The correlation matrix applying a non-parametric test for non-continuous data using Spearman's ratio inferred a statistically significant correlation (-0.354) with a P-value of 0.005 for TLS, whereas a correlation (-0.162) of TGS with gender was not so significant with a P-value of 0.217. Our study proved the uniqueness of applying TLS as a novel approach to gender identification. The study revealed that males had a statistically higher lip score than females. Being unique, our study inferred the importance of TLS, which needs to be explored in detail for applying, evaluating, and validating its accuracy in forensic research that can help for errorless investigations as full-proof evidence in court.

Lip Print Pattern among Children Visiting Dental Out patient department.

Lip print patterns are unique in every individual. The uniqueness of lip print pattern assists in the personal identification. The objectives of the present study were to study the different lip print patterns among the children visiting Kanti Children's Hospital, and to compare the distribution of lip print patterns based on gender and race. A cross-sectional study was conducted among 300 children visiting the Dental Outpatient Department of Kanti Children's Hospital, Kathmandu, Nepal. Convenience sampling method was used to choose the study subjects. Digital photography method was used to record the image of lips. The study showed 'Long vertical' (Type I) as the most frequent (41%) type of lip print pattern, whereas 'Unspecified' (Type V) was the least frequent (2.7%) type. Prevalence of 'Type I' pattern was significantly higher in males as compared to females (p=0.007) whereas prevalence of 'Type IV' pattern was significantly higher in females as compared to males (p=0.006). 'Type I' pattern was the commonest lip print pattern among both Caucasians and Mongolian, whereas 'Type V' (2%) and 'Type IV' (3.7%) were the least common lip print patterns in Caucasians and Mongolian children respectively. 'Long vertical' (Type I) was the most common lip print pattern among the children visiting the Dental Outpatient Department of Kanti Children's Hospital, Kathmandu, Nepal. Nevertheless, in higher or lesser numbers, all kinds of lip print patterns as described by Suzuki and Tsuchihashi were seen in the study population.

Estimating the Age of an Individual by Analyzing the Lip Print through Suzuki and Tsuchihashi's Classification

A forensic examination method called cheiloscopy uses the ridges and grooves on lips to distinguish between forensic instances and those that are not. The goal of the study is to identify the common lip print pattern and its variations across different age groups using Suzuki and Tsuchihashi's kinds classification. Totally 180 participants were split into three age groups (Groups 1: 21–30, Group 2: 31–40, and Group 3: 41–50). The study area is located in a small part of Puducherry. Subsequently, the lip prints were photographed and stored for digital analysis. To enhance visualization, the lip print photographs were uploaded onto Adobe Photoshop 2019, and filters were applied to identify the patterns. Concluding this study, the identification of age groups among individuals might be facilitated through the recognition of these six patterns. This capability will aid in categorizing people in the event of a disaster or explosive case. Since every person has a unique lip print, it is elementary to identify, document, and analyze these patterns when using digital picture analysis.

Distribution and Uniqueness in the Pattern of Lip Prints.

Introduction Lip prints are the characteristic pattern of wrinkles and grooves on the labial mucosa. Lip prints can be classified into various patterns and can be used for personal identification as they are unique and do not change during the life of a person. Cheiloscopy is a forensic investigation technique that deals with the identification of humans based on lip traces. Objectives This study aimed to investigate the distribution of lip print patterns, to assess gender differences, and to calculate the lip score using a weighted value scoring system. Material and methods A cross-sectional study was carried out in the Department of Anatomy, All India Institute of Medical Sciences (AIIMS), Guwahati, India, from May to October 2023, after getting approval from the Institutional Ethics Committee (IEC). A total of 200 individuals (100 males and 100 females) were included in the study. Each lip print was divided into four quadrants. In each quadrant, up to 14 grooves were marked from the midline, and the pattern of each groove was observed. Each pattern was given an Arabic numeral score. Weighted values were given for the grooves in descending order from 15 to 1 with reference to their position from the midline of the lip print.The product of the Arabic numeral score of the groove and the weighted value of the groove is the lip line score. The sum of the lip line scores was calculated. Results The most common pattern observed in the present study is type II, with 3,816/12,000 (31.8%), followed by type I'with 3,146/12,000 (26.21%), type I with 1,865/12000 (15.54%), type III with 1,491/12,000 (12.42%), type IV with 1,133/12,000 (9.44%), and type V with 549/12,000 (4.5%). The mean total lip score is 1,467.68 (1,486.41 in males and 1448.96 in females). Conclusion Lip prints are unique and useful for personal identification, as the lip score in various quadrants and the total lip score are different for different individuals.

A Study on Uniqueness of Lip Print Patterns: Sexual Dimorphism, Twins, and Across Three Generations

Background and Aim: Lip prints just like fingerprints follow unique patterns in every individual and are said to vary significantly even within the same family. Lip prints can be recognized from 6th week of intrauterine life and remain unchanged throughout their life. The objective of the present study was to evaluate personal identification through lip print patterns with additional reference to twins and members of the same family. Materials and Methods: Lips of 75 males, 75 females, and 30 twins were studied in various quadrants. In addition, the pattern in the middle 10 mm of the lower lip was also evaluated to note the pattern distribution and dominance of the type of pattern in different genders. Lip print patterns in five families across three generations (eight members each of the same family) were observed for the existence of inheritance of patterns from their ancestors. Results: Among males and females, the most common pattern in the middle 10 mm of the lower lip is Type III (34.66%) and Type IV (32%), respectively. In the middle 10 mm of the lower lip, 33.33% of twins have similar lip patterns but with differences in its arrangements. The result showed different lip print patterns even in twins and among the members of the same family across three generations, with some similar patterns which suggesting hereditary influences in lip prints. Conclusion: In the present, we can see that lip prints are unique and permanent for every human being even among twins and individuals of the same family.

Assessing the Relationship between Fingerprints and Lip Prints Patterns with Gender and Blood Group at a Tertiary Care Hospital

Background: Fingerprints and lip prints are unique biometric markers extensively studied in forensic science for individual identification. Objective: This study investigates the relationship between fingerprints and lip print patterns concerning gender and blood group characteristics within a tertiary care hospital setting. Study Design: Cross-sectional study. Settings: Department of Forensic Medicine Loralai Medical College, Loralai Pakistan. Duration: From August 2022 to January 2023. Methods: Total 150 patients involving the collection of fingerprints and lip prints from participants were enrolled. Gender and blood group information were also recorded. Statistical analysis, including correlation tests and chi-square analysis, was employed to examine associations between biometric patterns and demographic variables. Results: The mean age of the sample population was 37.53 years, with a standard deviation of 3.2 years. Approximately 53.33% of the participants were male, while 46.67% were female. Groups A and O each comprised 26.67% of the sample, while group AB accounted for 16.67%. Type II and Type III patterns followed, accounting for 23.33% and 20.00%, respectively, while Type I patterns were least common at 16.67%. In terms of fingerprint types, loops were the most prevalent at 46.67%, followed by whorls at 30.00% and arches at 23.33%. The correlation indicates significant associations between lip prints and fingerprints with gender (χ² = 7.128, df = 3, p < 0.001*) and between lip prints and fingerprints with blood group (χ² = 5.454, df = 3, p = 0.001*). These findings suggest that gender and blood group may influence the distribution of lip prints and fingerprints. Conclusion: This study demonstrates significant associations between fingerprints, lip prints, gender, and blood group characteristics among individuals at a tertiary care hospital. These findings underscore the potential utility of integrating biometric parameters for enhanced forensic identification and medical diagnostics.

Study of Lip Print Patterns Distribution and Their Stability in Time Pass

to assess the distribution of lip print patterns and their stability during the time.
 Methods: Lip prints were obtained from 133 dental students and the distribution of patterns was evaluated, using the Five-stage Suzuki and Tsuchuhashi’s classification. Six months later, lip prints were obtained again from 40 out of 133 students who were chosen accidentally to assess the stability. The individual lip formula was determined by Paired T-test and ANOVA at p<0.05.
 Results: Type I was the most common pattern in the lips. Lip formulas were found to be unique for each individual. No significant difference existed in the distribution of lip print patterns between males and females, or between the upper and lower lips. In terms of stability, 73.8% of lip print patterns remained unchanged during a 6-month period.
 Conclusion: Lip print patterns are unique to each individual and have medium stability over time. Therefore, cheiloscopy may be considered a useful identification tool in forensic dentistry. However, the lip print pattern cannot indicate the sex of people.

A Correlative Study to Assess the Relationship among Ameloglyphics, Cheiloscopy, Rugoscopy in Skeletal and Dental Malocclusions

Introduction: Benefits of preventive and interceptive orthodontic procedures can be availed by early prediction of malocclusion. Early diagnosis is achievable when parameters having similar embryological origin and development period, similar to that of the craniofacial structures are identified and studied. Few such parameters are the enamel rod end patterns, lip prints, and palatal rugae patterns. The intent of this study was to assess the correlation between ameloglyphics, cheiloscopy, rugoscopy and skeletal and dental malocclusions. Materials and Method: A cross-sectional study with one hundred subjects were classified into 3 groups based on cephalometric analysis into skeletal class I, class II and class III malocclusion and were further divided into 4 dental malocclusion groups namely class I, class II division 1, class II division 2 and class III based on the Angle's classification of malocclusion. Ameloglyphics patterns, lip prints and palatal rugae patterns were recorded for each subject and statistically analyzed with chi-square test and Spearman correlation test. Result: Class I malocclusion subjects revealed a predominant curve palatal rugae pattern, type II lip print pattern and wavybranched ameloglyphics patterns were observed with statistically significant association. In class II malocclusion, the predominant palatal rugae pattern observed was straight pattern, type I lip print pattern and linear branched ameloglyphics patterns were statistically significant. Subjects in class III malocclusion group were associated significantly with the annular pattern of palatal rugae, type I lip print pattern, and stem pattern of ameloglyphics. Conclusion: A curve rugae pattern in class I malocclusion, a straight pattern in class II malocclusion, and an annular pattern in class III malocclusion were observed. For the Lip Prints, a highly statistically significant association was observed between class I malocclusion and type II lip print pattern. Ameloglyphics, revealed a statistically significant association between wavy branched pattern and class I malocclusion, linear branched pattern and class II malocclusion and stem pattern with class III malocclusion.

Frequency and Correlation of Fingerprints and Lip Prints with ABO Blood Groups among Nkalaha of South-Eastern Nigeria

Abstract Background: Forensic individual identification system is one of the accurate ways of identification. The need to improve existing methods continues to be an area of research. Objective: This study aimed to investigate the frequency and correlation of different lip print patterns and fingerprint pattern distribution compared with gender and ABO blood group. Methodology: The study was conducted on 200 healthy volunteers aged 15–50 years. Each subject’s thermoscopic and dermatographic data were analysed according to Suzuki, Tsuchihashi, and Henry classification systems. ABO blood test was done and recorded for each subject. Pearson statistics were done, and tests were considered statistically significant when the P value was at 0.05; a Bar chart was applied to analyse the prevalence of the variables. Results: The O blood group was noted as common among the genders, followed by A, while the least was AB. Type III lip print pattern was the most predominant, while the least common was Type V in both genders. The radial loop fingerprint pattern was the most common in both genders, followed by Whorl, while Arch was least noted in males and tented loop in females. A significant correlation was found between ABO and lip print patterns except for Type V in both genders. A positive correlation was observed between all the ABO with fingerprint patterns, except for A and TL (A with fingerprint: r = 1, P = 0.05, B: r = 0.889, P = 0.001, O: r = 0.976, P = 0.000 and AB: r = 0.120, P = 0.742). Conclusion: We found an association between lip print patterns and fingerprints with ABO in both genders; thus, correlating this physical evidence sometimes helps the forensic team get an accurate personal identification or narrow the search for an individual where no possible data refer to the subject’s identity.

Classification and Identification of Individuals Using Analysis Lip Prints

Identifying individuals is a major challenge for forensic investigators, as DNA and fingerprints are highly valuable, but are not always readily available at crime scenes. Lip prints could be used in this context since they are unique to each individual. Lip-print study (Cheiloscopy) is a reliable biometric technology and is considered a unique parameter for identification. This study was determined lip print patterns among samples of the Salah El-Din population in Iraq and distribution their pattern type of lip print by using a program in MATLAB. In this study, it was established that there are significant differences between populations, countries, and genders when it comes to the distribution of lip prints. Materials and Methods: A total of participants was 100 (50 females & 50 males) their ages more than 10 years old. The lip print was divided into six quadrants on white copy paper then examined with technology using the program in MATLAB to determine the classification of lip print types for pattern distribution. Lip print was recorded by the usage of red natural color and healthy, white copy papers, and tissue paper, the obtained prints were first examined and later analyzed and interpreted.Results: This study discovered that no two samples from the same family have identical lip-print patterns. Females had the greatest recorded pattern of groove type I (long vertical grooves), whereas males had the highest recorded pattern of groove type II (branched grooves). This pattern was most observed in the lower middle region. The present study proved that lip prints of males and females are different types in different countries.Conclusion: lip prints are unique for every individual even in between the family. Hence, Lip prints play a vital role as a supplementary tool in the personal identification of suspects or unknown identity.

Lip print patterns in forensic investigation: Detectability, sex differentiation, and reliability

Lip print patterns are increasingly recognized as a vital resource within forensic investigations, providing a distinctive means for identifying individuals. This extensive investigation examines the detectability, possibility for sex distinction and forensic consequences of lip print patterns. Through both direct visualization and scoring procedures, a comprehensive examination was undertaken to analyze the intricate patterns of lip prints exhibited by male and female participants in Indonesia. The results of our study provide clear evidence for the infrequency of similar lip print patterns among individuals, confirming previous research conducted by Suzuki and Tsuchihashi. It is worth mentioning that type II lip print type was the prevailing type in Indonesian males and females. Furthermore, noticeable variances based on sex were seen in the upper left (UL) and lower middle (LM) quadrants. This research emphasizes the crucial significance of lip prints in criminal investigations, emphasizing their wide range of uses and relevance in diverse forensic contexts. The distinctiveness, singular nature, consistency, genetic transmission, and wide range of lip lines establish them as dependable means for personal identification. Lip print analysis has promise as a prospective means of scientific validation in forthcoming legal procedures, with the capacity to augment forensic methodologies and offer valuable contributions to the judicial process. The results reported in this study provide a foundation for creating a comprehensive set of criteria for assessing the lip line, which can serve as a valuable tool for the progression of forensic science and the pursuit of justice.

Cheiloscopy patterns in individuals with and without parafunctional oral habits: A cross-sectional observation pilot study.

Lip prints are unique and have potential for use as a human identifier. The purpose of this study was to observe possible cheiloscopy differences of individuals with and without parafunctional oral habits such as smoking, vaping, playing a wind instrument or using an asthma inhaler. This IRB approved blinded cross-sectional observation pilot study collected lip prints from 66 individuals, three of which were excluded. Participants cleansed their lips, then lipstick was applied to the vermillion zones of the upper and lower lips. Adhesive tape was applied to the lips and prints were transferred to white bond paper for viewing purposes. Each set of included lip prints was divided into quadrants and dichotomized into a group of those with an oral parafunctional habit or with no such habits. Each quadrant sample was then manually analysed and classed according to the gold standard Suzuki and Tsuchihashi system. A total of 252 dichotomized lip print quadrants (with habits n = 76, 30.2%, and without habits n = 176, 69.8%) were analysed. Type II patterns were the most common for examined quadrant samples; however, no statistically significant differences (Pearson's chi-squared test, p = 0.366) were observed between pattern classifications of samples with and without parafunctional oral habits. There is no statistically significant difference of lip print patterns between individuals with and without parafunctional oral habits. Further research on populational variations is needed for cheiloscopy to aid in human identifications.