Palatal rugae patterns for establishing individuality. Palatal rugae was first described by winslow 1753, and the earliest illustration of them was given by santorini 1775. Pdf importance of palatal rugae in individual identification. Palatal rugae pattern and number, direction of rugae alignment, shape of. Palatal rugae pr are situated in the anterior part of the hard palate and. Anatomical terminology edit on wikidata rugae folds behind the anterior teeth in the hard palate of the mouth. Three dimensional anatomical exploration of the anterior. Patient usually gets easily adapted to the maxillary. They observed the number, length, shape, direction and unification of rugae.
Additionally, palatal rugae can withstand decay for up to 7 days after the persons death. Assessment of the stability of the palatal rugae in a 3d3d. Evaluation of rugae pattern in individuals of a known population. The present study is an attempt to determine the differences in the rugae pattern among the indian males and females in a small. Palatoscopyrugoscopy is the study of palatal rugae that helps in sex determination. Palatal rugae patterns for establishing individuality indira. Palatal rugoscopy is the name given to the study of palatal rugae. Palatal rugae patterns among the indians at manipal, india. Many studies have been conducted to identify gender using palatal rugae pattern,4, 5, 6 arch length, 7 and arch width8, 9 as three separate.
Complete denture base thickness was reduced atthe anterior palate region by 1 mm, and autopolymerizing acrylic. The palatal rugae that were larger were the sinuous mean 9. Stability of the palatal rugae as landmarks for analysis. Most commonly rugae refers to the gastric rugae of the internal surface of the stomach function.
Palatine rugae and their significance in clinical dentistry. It is the area extending from the incisive papilla to the distal end of. Ambedkar dental college and hospital, bangalore, india 2 department of oral medicine and radiology, santosh dental college and hospital, ghaziabad, ncr new delhi, india. Conversion of palatal rugae pattern to scanable quick response code in an arabian population. This case report presents threedimensional 3d palatal rugae analysis in monozygotic twins. The digital image recognition system used in this study for identification of the palatal rugae w as codeveloped by professor bing li from shanxi medical university stomatological hos pital, china and scholars from school of information and communication engineering, north central university, china. Pdf 3d evaluation of palatal rugae in identical twins. Proper contact between the tongue and the palate is always involved in the production of linguopalatal group of sounds. To investigate the influence of reproduction of different thickness and palatal rugae materials on complete dentures speech using computerized speech lab csl spectrogram.
Center for dental studies and research, muradnagar, ghaziabad, uttar pradesh, india 2 department of oral and maxillofacial pathology and. Rugae duplication different techniques of customizing. This will serve as a potential basis for advising national health policy formulation on human identification as forensic rugoscopy is unexplored in sub. Ohtani and coworkers suggests high accuracy can be obtained using straight forward visual comparison from dentures. Previous research proposed that the palatal rugae remain stable over time and can therefore be used as reference points during orthodontic treatment 25. These rugae patterns are studied for various purposes, mainly in the fields of anthropology, genetics, orthodontics, prosthodontics, and forensic science. Palatal rugae patterns in edentulous cases, are they a.
The percentages of correct matches for examiners had a median of 90%. Palatal rugae as an aid for personnel identification 1. Pdf patterns of palatal rugae as an indicator of identification in. Morphological study of palatal rugae in a sudanese. Fifty plaster casts were examined for first and third rugae shape evaluation. Establishing individual identification of a decedent only by dental means is a mammoth task in forensic odontology.
Morphological changes in palatal rugae patterns following. Assessment of palatal rugae pattern and their reproducibility for application in forensic analysis divya shetty 1, achint juneja 1, anshi jain 2, kaveri surya khanna 2, neha pruthi 2, amit gupta 2, meenakshi chowdhary 1. Palatal rugae transfer is clinically significant because a palatal contour plays a very important role in phonetics. Replication of palatal rugae and incorporation in complete. Results showed a statistical difference towards memory chain, at one measure point and between the first and second activations. The current study was conducted to identify and determine the association. Research article palatal rugae biometric characteristics. Pdf the use of palatal rugae in assessment of antero. Palatal rugae have been related with specific racial groups and are said to be useful in sex discrimination.
A tool for sex identification in forensic odontology. Effect of palatine rugae on phonetic adaptation in. T the anatomical position of the rugae inside the mouth, surrounded by cheeks, lips, tongue, buccal pad of fat, teeth, and bone keeps them well protected from trauma and high temperatures. A study of palatal rugae pattern among north and south indian. A significant part of speech articulation happens inside the oral cavity and any modification of the. Palatal rugae patterns as bioindicators of identification in. Design and development of a palatal rugae based biometric. Palatal rugae plica palatinae transversae refer to a series of transverse ridges on the anterior part of the palatal mucosa. Highly disorganized palatal rugae was observed in both wise and lrp4 mutant mice, and these mutants also showed the downregulation of shh signaling, which was accompanied with upregulation of fgf signaling. Evaluation of palatal rugae pattern in establishing. Lebret 15 used a symmetrograph to record growthrelated changes in the shape of the palate with regard to alterations in the midsagittal and transverse contours. Palatal rugae also called plicae palatinae transversae and rugae palatina, refer to the ridges on.
Brachycephalic breedrelated defects are not only limited to the upper airways, some dogs may develop secondary systemic or localized problems. The uniqueness of palatal rugae as an aid for personal identification was the sole objective of this study. To create the palatine rugae in the denture base, impressions of the palatine rugae pattern of each subject were taken from working models using putty. Moreover, numerous studies investigating longitudinal changes in tooth positions have used the palatal rugae as a reference to superimpose consecutive study models 2628. Palatal rugae characteristics and its relationship with. The straight and horizontal rugae distributions were predominant in our gujarati study samples. However, rugae could be useful as landmarks to monitor anteriorposterior ap. The palatal rugae appear towards the third month of intrauterine life, from the covering connective tissue in the palatine process of maxillary bone, and its development and growth is mutually controlled by epithelialmesenchymal interactions12. Anatomy of the brachycephalic canine hard palate and. A simple technique of adding customized rugae and palatal contours to the maxillary denture vamsi krishna, v vamsi krishna reddy, n praveen kumar, k venkata krishnam raju 10.
This study was conducted to assess the accuracy of palatal rugae as a tool for human identification and to determine factors that may limit accuracy. Stereolithography is a typical modality of rapid prototyping used for producing physical models, patterns, and production parts in a layerbylayer manner from computeraided design software cad via 3d printing. Palatal rugae and their role in forensic odontology jain. The matching of preoperative and postoperative orthodontic casts demonstrated that although some changes do occur in the rugae during orthodontic treatment, the morphology of palatal rugae remains stable throughout life. Previous studies used poor duplicating materials and may not have considered the effects of growth, extractions, palatal expansion, or some combination of these. Rugae pattern are widely considered to remain unchanged during an individuals lifetime. Aug 01, 2016 in complete denture prosthodontics, phonetics is one of the most important factors to be taken into consideration. Palatal rugae pattern can be used for forensic identification of oral soft tissue and this study proposes a new means for the identification by coding of palatal rugae. Palatal rugae patterns for establishing individuality ap indira 1, manish gupta 2, maria priscilla david 1 1 department of oral medicine and radiology, m. Three completely edentulous male patients aged 5060 years were selected for reading a paragraph. I declare that palatal rugae patterns in a sudanese population sample is my own work, that it has not been submitted before for any degree or examination in any other university, and that all the sources i have used or quoted have been indicated and acknowledged as complete references.
Evaluation and comparative study of palatal rugae, arch. Palatal rugae as an aid for personnel identification. Nevertheless, palatal rugae or rugae palatinae, which are transversal ridges developing on the secondary palate, received little attention. The characteristics of the palatal rugae zone number of rugae, relief type, posterior limitation were investigated on the maxillary casts of 44 patients with unilateral cleft lip and palate and 28 patients with bilateral clefts by means of reflex microscopy, a threedimensional, computerassisted, touchfree measuring system for the metrical registration and analysis of the parameters.
Delineation of palatal rugae the delineation of palatal rugae was divided into three parts, including the entire size of the papilla, contour of rugae and length of the median palatal raphe, and was performed with 0. Design and development of a palatal rugae based biometric identification system by essa a. Matching palatal rugae patterns before and after orthodontic treatment. The analysis of the palatal rugae and their features can be used as a reliable guide to the forensic identification. Palatal rugae definition of palatal rugae by the free. Tishreen university journal for research and scientific. Review article significance of palatal rugae in orthodontics aravind sivaraj abstract the palatine rugae have interested orthodontists not only because of their typical pattern of orientation but also because of their usefulness as a reference landmark in various dental treatment modalities.
Assessment of palatal rugae pattern and their reproducibility. The palatal rugae act as an ideal for identification as it present in all victims and. The changes identified in the distances from the lateral palatal rugae points of the first and third rugae to the incisal. However, these researchers have disagreed as to whether or not legal identification could be based solely on palatal rugae. Easy pdf creator is professional software to create pdf. Tishreen university journal for research and scientific studies biological sciences series vol. Palatal rugae pattern were examined in both the sexes on right and left sides of the palate for the total. Rugae folds behind the anterior teeth in the hard palate of the mouth. While observing the shape of the rugae is a subjective process, it is relatively easy to. Palatal rugae patterns in a sudanese population sample.
Palatal rugae appear to possess the features of an ideal forensic identification parameter, that is, uniqueness, postmortem resistance, and stability. It has been accepted for inclusion in journal of dentistry indonesia by an authorized editor of ui scholars hub. Palatal rugae pattern can be used for forensic identification of oral soft tissue and this study proposes a new means for the identification by coding of palatal rugae pattern based on the shape, quantity, location and distribution. Palatal rugae s uniqueness, its resistance to heat, and stability throughout life have been proved by its use as an alternative aid in individual identification where comparison of fingerprints and other records is difficult. The study investigated the relationship of the palatal rugae to points and distances of the cleft palate during the time period from birth to early mixed dentition in subjects with unilateral and bilateral cleft lip and palate by means of threedimensional measuring system. This work aimed to characterize the palatal rugae patterns in a portuguese population.
Importance of palatal rugae in individual identification. Palatal rugae analysis may serve as an important aid in forensic. A comparative study of palatal rugae patterns among igbo and. The rugae pattern has the potential to remain intact by virtue of their internal position in the head when most other anatomical structures are destroyed or burned. Research article palatal rugae biometric characteristics for. The role of antemortem records of palatal rugae in. Speech is a critical activity of the stomatognathic system, which utilizes the oral cavity as an instrument.
Forensic odontology, human identification, palatal rugae. In addition, we studied the factors influencing its size, with subsequent comparison of the results between gender, using digital models. Palatal rugoscopy implementation in forensic odontology. Dental arch length and arch width also show variation with different races and gender. Palatal rugae may be an alternative identification mode when it is difficult to utilize fingerprints or dental records. Palatal rugae for the construction of forensic identification. Anatomic landmarks in a maxillary and mandibular ridge a. Kapali and colleagues 43 studied the palatal rugae pattern in australian aborigines and whites. The present study was conducted from random sampling of university of port harcourt. Correlation coefficients among rugal and dental measures suggested an association between rugae changes and the underlying bony movements. Conversion of palatal rugae pattern to scanable quick.
The total number of rugae observed in the study population were 783. Evaluation of speech and effect of customization of. Rugoscopy finds application in the field of anthropology, comparative anatomy, genetics, forensic odontology, prosthodontics and orthodontics. Conversion of palatal rugae pattern to scanable quick response. The accuracy rate of matching palatal rugae patterns before and after orthodontic. The first system of classification was developed by goria in 1911 and was rudimentary. About the journal journal of indian academy of oral medicine and radiology julyseptember 2011. Effect of palatine rugae on phonetic adaptation in complete. Sharad c purohit 1, vandana shah 2, bs manjunatha 3, keshav handge 2, n mahita reddy 2, and shital kumar gs 1. Palatal rugae pattern of an individual is species specific and is said to be as unique as finger print.
The study of identical twins can point out potential limitations in biometrics and forensic odontology. Limson and julian analyzed rugae pattern by a computer software and obtained 97% accuracy. Association between direction patterns of palatal rugae and. Spectrogram analysis of complete dentures with different. The aim of this study was to identify and compare the rugae pattern of igbo and ikwerre populations in nigeria for human identification purposes. The development of the secondary palate has been a main topic in craniofacial research, as its failure results in cleft palate, one of the most common birth defects in human. A more detailed and accurate and the need to preserve evidence may justify the use of photographs or impressions utsunoet al. Assessment of palatal rugae pattern and their reproducibility for application in forensic analysis divya shetty 1, achint juneja 1, anshi jain 2, kaveri surya khanna 2, neha pruthi 2, amit gupta 2, meenakshi chowdhary 1 1 department of orthodontics, i.
Thus palatoscopy or palatal rugoscopy is used as an aid in clinical dentistry. On the other hand large scale relative study concerning different races, family members and monozygotic twins is urgently needed in the future. Association between palatal rugae and gender were tested using chi square analysis and statistical. Quantitative and qualitative analysis of palatal rugae patterns in. This study was designed to further investigate the stability of palatal rugae patterns during orthodontic treatment.
Jun 24, 2015 palatal rugae as an aid for personnel identification 1. They are raised areas of dense connective tissue radiating from the median suture in the anterior rd of the palate. Palatal rugae patterns can differentiate the features among populations, because palatal rugae pattern and distribution are unique in each person. Speech has always been the most significant medium for the transmission of ideas and throughout the centuries it has been one of the main forces for the human progress. The study aims to document the incidence of any morphological change in the palatal rugae patterns following orthodontic treatment. Rugae duplication different techniques of customizing palatal rugae in maxillary complete denture to enhance phonetics. To determine the stability of the palatal rugae during fixed orthodontic treatment and to verify the accuracy rate of identification by comparing the rugae patterns on preoperative. Lysell 10 recorded an increase in primary ruga length from 5 to 10 years of age of 11 percent for boys and 9 percent for girls. Palatal rugae were altered by rme in all dimensions in both linear and angular measurements, almost equally on right and left sides, albeit the average linear changes were about 1 mm. The accuracy rate of matching palatal rugae pattern for individual identification using the digital recognition image system was 100 %. This study aims to determine the number, symmetry, shape and individual characteristic of palatal rugae.
Palatal rugae as a tool for human identification adisa. These rugae are present on each side of the median palatal raphe and behind the incisive papillae. Revanth soonthodu and r dr and manjucharan, year2017. Analysis of palatal rugae morphology before and after. Palatal rugae pattern of an individual may be considered as a useful adjunct for sex determination for identification purposes. Palatal rugae are one of the simple methods used by a forensic dentist in human identification due to its transverse ridges, palatal rugae a finger print of oral cavity. Often complete denture wearers complain of improper pronunciation of certain words which is attributed to the rugae form and palatal contour. Differentiation between palatal rugae patterns of twins by. The palatal rugae are considered a useful human identification marker for both orthodontists and forensic personnel. Palatoscopy or palatal rugoscopy is the name given to the study of palatal rugae in order to establish a persons identity. In our study, we performed on subjects ages 16 to 57 23. Assessment of size, shape, and position of palatal rugae.
Bailey, abbas esmailnejad, and marco antonio almeida 1996 stability of the palatal rugae as landmarks for analysis of dental casts in extraction and nonextraction cases. Patterning of palatal rugae through sequential addition. A total of subjects were enrolled in the study and divided into five. The palatine rugae and the ip often can serve as a cue. Rajendra human identification is an import ant aspect of forensic scienc es and various methods such. International journal of health sciences and research. Lrp4wise regulates palatal rugae development through. Assiri a dissertation submitted in partial fulfillment of the requirements for the degree of doctoral of philosophy in biomedical informatics department of biomedical informatics school of health related professions. Introduction palatal rugae transverse palatine folds or palatine rugae are anatomical structures present in the roof of the human mouth. Palatal rugae, due to their internal position, are protected. Wise and lrp4 are thus likely to control palatal rugae development by regulating reactiondiffusion mechanisms through shh and fgf signaling.