“Study of Palatal Rugae Pattern for Establishing Individuality”

zowharsajid, Mohamad; Singh, Dr.Prachi; Kumar, Dr.Shailesh; Kiran, Kamini; Agrawal, Dr.Shakti; Singh, Dr.Rameshwar; Kumar, Dr.Nitesh; Das, Dr.Gourab; Verma, Dr.Sumit; Singh, Dr.Abhisekh

doi:10.9790/0853-1508083743

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…These findings are consistent with the findings of a study on 30 subjects that consisted of five families (father, mother, and two siblings) and five pairs of dizygotic twins which showed individualistic rugae patterns among the subjects. However, some similar forms within a family were observed (38). This finding was confirmed by another study of 30 families consisting of parents and their offspring which showed nonidentical rugae configuration but with significant resemblance of the rugae patterns between child and parents indicating the role of heredity (39).…”

Section: Discussionmentioning

confidence: 96%

The Heritability of Palatal Rugae Morphology Among Siblings*†

Chong

Mohamed

Nor

et al. 2020

Journal of Forensic Sciences

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Although there is clinical applicability of the palatal rugae as an identification tool in forensic odontology, controversy exists whether the palatal rugae patterns are stable or variable. The greater the genetic component, the higher the probability that palatal rugae patterns are stable. The aim of this study was to compare the palatal rugae morphology between full siblings and the proportion of variability due to genetic component. This cross‐sectional study was conducted on digital models of 162 siblings aged 15–30 years old. The palatal rugae patterns were assessed with Thomas and Kotze (1983) classification using Geomagic Studio software (3D Systems, Rock Hill, SC). The palatal rugae morphology between siblings showed significantly similar characteristics for total number of left rugae (p = 0.001), left primary rugae (p = 0.017), secondary rugae for right (p = 0.024) and left sides (p = 0.001), right straight rugae (p = 0.010), and right convergent rugae (p = 0.005) accounting for at least 6.25%‐12.8% of the variability due to heredity. Despite the similarities found, the palatal rugae patterns showed significant differences between siblings of at least 46.9% (p = 0.001). Zero heritability was found in 9 of the 14 rugae patterns. Meanwhile, total number of rugae, primary, backward, and convergent rugae showed moderate heritability (h2 > 0.3) and total number of secondary rugae showed high heritability (h2 > 0.6). In conclusion, despite the individuality characteristics, an appreciable hereditary component is observed with significant similarities found between sibling pairs and the palatal rugae patterns were both environmentally and genetically influenced.

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Section: Discussionmentioning

confidence: 96%

The Heritability of Palatal Rugae Morphology Among Siblings*†

Chong

Mohamed

Nor

et al. 2020

Journal of Forensic Sciences

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“…The study of palatal rugae for evaluating human specification and naming is defined as palatoscopy. [ 2 ] The word rugae came from the Greek word seam. Moreover, it relates the crisscrossing or stitching of the parts of two biological structures during fetal differentiation.…”

Section: Introductionmentioning

confidence: 99%

Palatal rugoscopy as an adjunct for sex determination in forensic odontology (Sri Ganganagar population)

Gupta¹,

Kaur²

2021

Journal of Oral and Maxillofacial Pathology

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Introduction: Palatorugoscopy is the term used to study the rugae patterns. The word rugae came from the Greek word seam. Moreover, it relates the crisscrossing or joining or stitching of the parts of two biological structures during fetal differentiation. The aim of this study is to determine the gender difference in rugae pattern with regard to length, number, shape, unification and direction in the population of Sri Ganganagar, Rajasthan. Objective: The objective is to determine the gender difference in rugae pattern with regard to length, number, shape, unification and direction; to investigate the difference in division of rugae in males and females and to compare rugae pattern in males and females of different age group. Materials and Methods: This study included 100 subjects, in which 50 were males (Group A) and other 50 were females (Group B). After the formation of primary cast, all quantitative as well as qualitative characteristics of palatal rugae patterns were recorded. Mainly, two classifications were used in this study, Thomas et al. and Kapali et al. Statistical Analysis: Student t -test was used, and “ P ” value of <0.05 was considered statistically significant. Results: A statistically significant value was found in left-sided palatal rugae patterns depending upon the size, where we found that primary rugae were more in males. On comparing the angulation of palatal rugae patterns of left-sided rugae, a statistically significant value was found among the negative angulation which was higher in male subjects. Next, while comparing the angulation of palatal rugae of right side, we found a statistically significant value among zero (perpendicular rugae), which was more in male population. On comparing the unification of right-sided rugae patterns, we found that divergent rugae were more in male subjects. Conclusion: Palatal rugae patterns act as individualistic, and are unique patterns, and are helpful in determining the human gender. Further, more studies are required on palatal rugae patterns used in forensics on large population scale.

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“Study of Palatal Rugae Pattern for Establishing Individuality”

Cited by 2 publications

References 5 publications

The Heritability of Palatal Rugae Morphology Among Siblings*†

The Heritability of Palatal Rugae Morphology Among Siblings*†

Palatal rugoscopy as an adjunct for sex determination in forensic odontology (Sri Ganganagar population)

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