The Heritability of Palatal Rugae Morphology Among Siblings*†

Chong, Jun Ai; Mohamed, Alizae Marny Fadzlin Syed; Nor, Murshida Marizan; Pau, Allan

doi:10.1111/1556-4029.14507

Cited by 7 publications

(5 citation statements)

References 35 publications

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“…Some studies have proposed differential functions, such as a population study in coastal Andhra [23]. One study revealed similarities between relatives, suggesting a certain heritability of palatine rugae patterns [24].…”

Section: Discussionmentioning

confidence: 99%

Potential and Limits of the Synergy Between Cheiloscopy and Rugoscopy in Forensic Odontology

Trizzino,

Albano,

di vita

et al. 2024

Preprint

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Aim: The aim of this study is to evaluate the possibility of discriminating between the two sexes through the simultaneous use of cheiloscopy and palatine rugoscopy. Materials and methods: 80 palate and lip impressions (40 male and 40 female) were analyzed. The palate impressions were acquired using both analogue and digital methods. The lip impres-sions were first acquired analogically and then scanned. The morphology of the palatine rugae in the palate impressions was analyzed, with the exclusion of segmental rugae. The lip prints were analyzed in sextants and the morphology of the lip wrinkles was evaluated. Results: Palatine rugoscopy shows that women have more curvy rugae than men and that men have more rugae on the left side than on the right. Cheiloscopy gave no statistically significant re-sults. Discussion: Palatine rugoscopy showed some differences between the sexes, however, these re-sults were not solid enough for reliable sex discrimination. Differences between the results of dif-ferent studies can be attributed to ethnic and methodological variations. Cheiloscopy, on the other hand, did not provide statistically significant results for sex discrimination. Conclusions: Given the scant results obtained from palatine rugoscopy and the lack of statisti-cally relevant results in cheiloscopy, together with a lack of concordance among the data found in literature, it is believed that it is not possible to discriminate between the two sexes by using the two methods contemporarily. Further research is needed.

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Section: Discussionmentioning

confidence: 99%

Potential and Limits of the Synergy Between Cheiloscopy and Rugoscopy in Forensic Odontology

Trizzino,

Albano,

di vita

et al. 2024

Preprint

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“…All digital casts used in this study were selected from the archives [13]. The dental casts were scanned using a 3D light scanner, Rexcan CS+ scanner (Solutionix Corp.) [23].…”

Section: Methodsmentioning

confidence: 99%

“…Nevertheless, palatal rugae display a significant degree of individuality, with each person having a unique arrangement and pattern that distinguishes them from others [11]. In addition, evidence suggests a genetic association of palatal rugae among family members [12,13].…”

Section: Introductionmentioning

confidence: 99%

A morphometric approach to morphology analysis of palatal rugae in sibling groups

Tey,

Syed Mohamed,

Marizan Nor

2023

Journal of Forensic Sciences

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Recent advances in imaging technologies, such as intra‐oral surface scanning, have rapidly generated large datasets of high‐resolution three‐dimensional (3D) sample reconstructions. These datasets contain a wealth of phenotypic information that can provide an understanding of morphological variation and evolution. The geometric morphometric method (GMM) with landmarks and the development of sliding and surface semilandmark techniques has greatly enhanced the quantification of shape. This study aimed to determine whether there are significant differences in 3D palatal rugae shape between siblings. Digital casts representing 25 pairs of full siblings from each group, male–male (MM), female–female (FF), and female–male (FM), were digitized and transferred to a GM system. The palatal rugae were determined, quantified, and visualized using GMM computational tools with MorphoJ software (University of Manchester). Principal component analysis (PCA) and canonical variates analysis (CVA) were employed to analyze palatal rugae shape variability and distinguish between sibling groups based on shape. Additionally, regression analysis examined the potential impact of shape on palatal rugae. The study revealed that the palatal rugae shape covered the first nine of the PCA by 71.3%. In addition, the size of the palatal rugae has a negligible impact on its shape. Whilst palatal rugae are known for their individuality, it is noteworthy that three palatal rugae (right first, right second, and left third) can differentiate sibling groups, which may be attributed to genetics. Therefore, it is suggested that palatal rugae morphology can serve as forensic identification for siblings.

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“…Korábbi publikációnkban sikerült bizonyítanunk, hogy egypetéjű ikreket a szájpadlásbordázat alapján 99,999%-os populációs lefedettséggel, 99%-os megbízhatósággal meg lehet különböztetni egymástól, digitális háromdimenziós mintákat használva, annak ellenére, hogy az ikerpár tagjai közel 100%-ban azonos genetikai állománnyal rendelkeznek (Simon et al 2020). A digitális összehasonlító módszer pedig a biometrikus azonosítást új alapokra helyezi, nem jár invazív beavatkozással, mintázatfelismerő szoftver segítségével költséghatékonyan, nagyfokú megbízhatósággal dolgozik, és ismert, hogy a fogak és a szájpadlásbordázat hosszú távon stabil, azonosításra alkalmas képletek (Azab et al 2016;Chong et al 2020;Kapali et al 1997;Kommalapati et al 2017;Limson-Julian 2004;Taneva et al 2017;Taneva et al 2015).…”

Section: Az Ikrek Szerepe a Biometrikus Azonosítás Fejlesztésébenunclassified

A preventív és proaktív fogászati azonosítás bevezetése és jelentősége tömegkatasztrófa áldozat azonosításkor

2021

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Összefoglaló. A modern kriminalisztika interdiszciplináris területe a tömegkatasztrófa áldozat azonosítás. A katasztrófát általában egy előre nem látható esemény okozza, amelyben mind az emberi, mind pedig az anyagi kár jelentős. Napjainkban az áldozatazonosítás folyamata reaktív módon történik, tehát az azonosításhoz szükséges dokumentáció az esemény bekövetkezése után kerül összegyűjtésre. A fogászati ante-mortem (AM) adatokat előre, hatóságilag egy központi adatbázisban, preventív jelleggel, kötelező módon nem tárolják. A preventív AM adatbázis létrehozása felgyorsíthatja és költséghatékonnyá teheti az áldozatazonosítást, mert a jelenlegi reaktív módszer helyett preventív módon, proaktív jelleggel kerülne sor az azonosításra. Summary. Mass disaster identification is an interdisciplinary field of modern forensic science. A disaster is usually caused by an unforeseen event in which both human and material damage is significant. Nowadays, the victim identification process is reactive, i.e., the authorities react to the event that has occurred and collect the necessary documentation for identification after the event has taken place. Primary identifiers include fingerprints, DNA and dental records. In mass casualty incidents, teeth are usually the most common means of identifying victims. However, dental ante-mortem (AM) documentation is not stored in advance in a central database as a preventive measure. The creation of a preventive AM database could speed up and make victim identification cost-effective, because it would be done in a preventive and proactive way instead of the current reactive method. The quality of the AM documentation would be guaranteed to be good and accurate, so that post-mortem (PM) data collected in the field can be easily and efficiently compared by a smart pattern recognition software, increasing the likelihood of successful identification. The introduction of digital health involves not only security and technology, but also cultural change. In Hungary, from 2020 onwards, the private sector will be obliged to provide data to the National eHealth Infrastructure (Elektronikus Egészségügyi Szolgáltatási Tér, EESZT), so digital health information will be stored in a centralized system, which can improve the quality of ante-mortem documentation. When identifying victims, it is important to have biometric identifiers that are resistant to environmental influences, have individual characteristics, are easy to collect and compare with reference information, and can be stored and used in a cost-effective way. The palatal ridge has been shown to meet the above properties. The development of digital dentistry and the involvement of the dental sector in data collection will facilitate the work of forensic dental experts, enabling the state to ensure effective identification and subsequent dignified farewells and burials for its citizens in the event of a mass disaster. According to the principle of operation of the preventive AM-PM database, the two- and three-dimensional X-ray and other imaging data, findings, anamnesis documentation and final reports collected during the lifetime of a citizen are stored in a central database. Changes during screening examinations can be traced. One of the most valuable is dental documentation. All information linked to the individual is stored with AM ID, which is also linked to passport and ID card information. In the event of an accident, post-mortem data is also stored in the AM-PM database, which is saved with a PM ID. With the help of a smart algorithm, the AM-PM ID match helps to identify the victim. In the case of missing persons, it is important that the missing person’s medical AM documentation, if not already stored, is immediately included, since when identifying an unknown body, it is probably best to start the search among the missing persons first.

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The Heritability of Palatal Rugae Morphology Among Siblings*†

Cited by 7 publications

References 35 publications

Potential and Limits of the Synergy Between Cheiloscopy and Rugoscopy in Forensic Odontology

Potential and Limits of the Synergy Between Cheiloscopy and Rugoscopy in Forensic Odontology

A morphometric approach to morphology analysis of palatal rugae in sibling groups

A preventív és proaktív fogászati azonosítás bevezetése és jelentősége tömegkatasztrófa áldozat azonosításkor

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