Through our study, we feel that palatal rugae patterns will be of great use in the. Palatal rugoscopy, or palatoscopy, is the process by which human identification can be obtained by inspecting the transverse palatal rugae inside the mouth. Palatine rugae can be used as internal dentalcast reference points for quantification of tooth migration in cases of orthodontic treatment. In addition, we studied the factors influencing its size, with subsequent comparison of the results between gender, using digital models. 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. Palatal rugae are irregular, asymmetric ridges of mucous membrane extending lateral from the incisive papilla and the anterior part of the median palatal raphe, which is just behind the maxillary central incisor teeth2. The changes identified in the distances from the lateral palatal rugae points of the first and third rugae to the incisal. Palatal rugae pattern analysis has been employed successfully in positive human identification.
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. The aim of this study was to identify and compare the rugae pattern of igbo and ikwerre populations in nigeria for human identification purposes. However, the findings differ somewhat regarding the stability of the palatal rugae. Palatal rugae as an aid for personnel identification. Pdf importance of palatal rugae in individual identification. Differentiation between palatal rugae patterns of twins by. A pilot crosssectional study was carried out on 60 egyptian subjects and 60 malaysian subjects. Palatal rugae for the construction of forensic identification. Identification of individuals using computer technique.
Tooth morphometry and the pattern of palatal rugae among monozygotic and dizygotic twins in india. Methodological accuracy of digital and manual model. 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. Effect of palatine rugae on phonetic adaptation in complete dentures based on the palatogram similarity of the indonesian linguopalatal consonant dona dewita1, henni koesmaningati2, muslita indrasari2 1. The incidence of curved,straight and forwardly directed rugae were more among females than males, while that of wavy,perpendicular and backwardly directed. Palatal rugae patterns as bioindicators of identification.
The present study was conducted from random sampling of university of port harcourt students. The current research was conducted to determine the uniqueness, prevalence and biometric characteristics of palatal rugae in a. Significance of palatal rugae in orthodontics journal of orofacial research, julyseptember 20. Systematic analysis of its shape and dimensions for. This is a temporary file and hence do not link it from a website, instead link the url of this page if you wish to link the pdf file. Some key words palatal rugae ridges on anterior part of palatal mucosa, on each side of the mid palatine raphe and behind the incisive papilla. Palatal rugae retain their shape throughout life and hence can be useful as an identification tool. Produced with the front of the tongue near or against the hard palate, as the y in english young.
Palatal rugoscopy was first proposed in 1932 by the spanish investigator trobo hermosa. Palatal rugae patterns as a bioindicator for forensic. The first system of classification was developed by goria in 1911 and was rudimentary. A comparative study of palatal rugae patterns among igbo. Instability of palatal rugae following rapid maxillary. The prominent ridges present on either side of the mid palatine raphe across the anterior portion of the palate constitute the rugae. Forensic odontology plays important role in identification of human remains in mass disasters such as air crash, tsunami, and accidents. Pdf simple technique for duplicating the palatal rugae.
Replication of palatal rugae and incorporation in complete. Patterning of palatal rugae through sequential addition. Palatal rugae pattern of an individual may be considered. Study of palatal rugae pattern among the student population in. The anatomical folds of rugae those are located on the anterior third of palate behind the incisive papillae. Palatal rugae, also known as plicae palatinae transversae and rugae palatine, are situated in the anterior third of the hard mucosal palate in the roof of the mouth. Palatal rugae pattern of an individual may be considered as a useful adjunct for sex determination for identification purposes. Offsets from this plane to the ruga points and transverse and anteroposterior linear distances between ruga points were obtained for. Additionally, discriminant function analysis was applied to determine the applicability of palatal rugae patterns as a tool to aid sex identification. So both palatal rugae and lip grooves can be used successfully in human identification4. In patients who have received radically orthodontic treatment the rugae position can be markedly changed. The study of identical twins can point out potential limitations in biometrics and forensic odontology.
This paper is going to explain the role of palatal rugae in the forensic odontology as in certain situations, if teeth are lost due to any reason, then the use of human palatal rugae has been suggested as an alternative method for identification. Assessment of size, shape, and position of palatal rugae. However, rugae could be useful as landmarks to monitor anteriorposterior ap. Palatal rugae patterns in a sudanese population sample. The aim of the present study was to investigate the stability of the medial aspects of the palatal rugae in subjects treated with rme followed by fixed appliance therapy. The palatal rugae are the landmarks that have been studied to the greatest degree. Palatal rugae play a vital role in the production of palato lingual sounds. For this purpose, a special software was designed called palatal rugae comparison software prcs version 2. A median palatal plane was constructed using the digitized raphe points as reference. An effective marker in population differentiation article pdf available in journal of forensic dental sciences jfds 61. The pdf file you selected should load here if your web browser has a pdf reader plugin installed for example, a recent version of adobe acrobat reader if you would like more information about how to print, save, and work with pdfs, highwire press provides a helpful frequently asked questions about pdfs alternatively, you can download the pdf file directly to your computer, from where it. Differentiation between palatal rugae patterns of twins by means of the rinon method and an improved technique not exhibit the same palatal rugae pattern.
The aim of the study is to investigate the potential of using palatal rugae as an aid for sex identification in bengaluru population. Anteroposterior and transverse changes in the positions. Palatal rugae serve as a reference landmark and could be used in the identification. Full text full text is available as a scanned copy of the original print version. Palatal rugae appear to possess the features of an ideal forensic identification parameter, that is, uniqueness, postmortem resistance, and stability. The analysis of the palatal rugae and their features can be used as a reliable guide to the forensic identification. Palatal rugae are structures located on the palate and are formed in the third month of intrauterine life. Palatal rugae as an aid for personnel identification 1. A simple inexpensive method for duplication of patients palatal rugae is described in this article. The application of palatal rugae for sex discrimination in forensic. Often complete denture wearers complain of improper pronunciation of certain words which is attributed to the rugae form and palatal contour. Swellings of congenital origin are associated with unerupted teeth and torus palatinus while acquired conditions resulting in palatal swellings include dental abscess, salivary gland neoplasms.
Palatoscopy or palatal rugoscopy is the study of palatal rugae in order to establish a persons identity. Stability of the palatal rugae as landmarks for analysis. All were above 6 years old, nonsmokers and were sharing the same dietary habits. Palatal rugae patterns in edentulous cases, are they a reliable. Importance of palatal rugae in individual identification. Research article palatal rugae biometric characteristics.
Research article open access palatal rugae patterns as an. To evaluate the role of different morphological palatal rugae patterns palatal print as a tool for personal identification. The accuracy rate of matching palatal rugae patterns before and after orthodontic. Analysis of palatal rugae morphology before and after. Stability of palatal rugae as landmarks for analysis of.
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. Tooth morphometry and the pattern of palatal rugae among. Effect of palatine rugae on phonetic adaptation in. Investigations on the palatal rugae pattern in cleft. The secondary peripheral seal area for a mandibular complete denture is the anterior lin gual border if you are fabricating a mandibular complete denture for a patient with a knifeedge ridge, you need maximal extension of the denture to. Lebret 1 found that the distances between the ruga landmarks were almost always constant, especially for ruga points near the median raphe. Produced with the front of the tongue near or against the hard palate, as the in english young. Systematic analysis of palatal rugae pattern for use in human. This case report presents threedimensional 3d palatal rugae analysis in monozygotic twins. A pilot cross sectional study of palatal rugae shape and. In general, no bilateral symmetry exists in the rugae pattern. Palatal impressions were taken from the subjects and a rugogram was issued.
Design and development of a palatal rugae based biometric. About the journal journal of indian academy of oral medicine and radiology julyseptember 2011. Research article morphological study of palatal rugae in a sudanese population altayebabdallaahmed 1,2 andawradhamid 3 department of basic medical sciences, college of medicine, king saud bin abdulaziz university for health sciences, mailcode,p. The present study aimed at analyzing the differences in rugae pattern among kodavas and tibetan populations of coorg, india and to examine if there was a difference in the rugae pattern between males and females within each group. Initially, the palatal rugae area for each digital impression was isolated as a separate 3d image, and two impressions were registered by manual alignment.
These rugae patterns are studied for various purposes, mainly in the fields of anthropology, genetics, orthodontics, prosthodontics, and forensic science. Pdf palatal rugae pattern in korean children and adolescents. Results of several studies show a significant association between rugae forms. The length of palatal rugae, distance from palatal rugae to tip of canine, perpendicular distance from incisive papilla and midpoint of incisal surface to a line connecting 1st premolar and the distance from central incisor to incisive papilla were compared in all the 3 arch forms. Rugae are anatomical folds or wrinkles, the irregular fibrous connective tissue located on the anterior third of the palate, behind. As propagated by terrell,1 dentures should be an aid rather than a hindrance to good speech. Palatal rugae definition of palatal rugae by medical. Palatal rugoscopy implementation in forensic odontology. To investigate the unique features of the palatal rugaes shapes and measurements and use it to establishing a landmark for extracting biometrics based identification.
The results show that the rugae patterns contain related but not identical. The level of evidence for the application of palatal rugae in dental identification was found to be insufficient. Palatal rugae the primary support areas of the maxillary complete denture are the residual ridges the maxillary and palatine bones. One hundred plaster casts equally distributed between. 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. The palatal rugae form elevations more or less prominent and take various configurations. Assessment of size, shape, and position of palatal rugae rivera. Nevertheless, palatal rugae or rugae palatinae, which are transversal ridges developing on the secondary palate, received little attention. 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.
However, reports of the validity of the technique are conflicting. The use of palatal rugae in dentistry is an alternative method for human identification. Palatal rugae pattern in central indian population. Links to pubmed are also available for selected references. 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. Palatal rugae pattern of an individual is species specific and is said to be as unique as finger print.
The most reliable points were found to be the medial and lateral third rugae points, which could be used as stable landmarks in longitudinal cast analysis. A simple method for patients palatal rugae duplication in. Palatal rugae are resistant to chemical injuries and can be said to be unique for every individual as it is consistent throughout life 5. In complete denture prosthodontics, phonetics is one of the most important factors to be taken into consideration. Research article morphological study of palatal rugae in a. A study of palatal rugae patterns and maxillary inter. Palatal rugae patterns are definitely associated with regional variation and can aid as an additional tool in various forensic identification procedures.
The rugae morphology seemed to be stable during normal growth and development. Produced with the blade of the tongue near the hard palate, as. The present study is aimed at analyzing the palatal rugae variations in children from karnataka, india with a primary objective to assess the variations based on gender and age between the groups. Palatoscopy or palatal rugoscopy is the name given to the study of palatal rugae in order to establish a persons identity. Palatal rugae definition of palatal rugae by the free. Get a printable copy pdf file of the complete article 2. Matching palatal rugae patterns before and after orthodontic treatment. Pdf human identification is an important aspect of forensic sciences and various methods such as dna analysis. Correlation coefficients among rugal and dental measures suggested an association between rugae changes and the underlying bony movements. Palatal rugae or transverse palatine folds are asymmetrical and irregular elevations of the mucosa located in the anterior third of the palate and are permanent. Landmarks on the palatal raphe and palatal rugae were recorded using the reflex metrograph. 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 %. Palatal rugae pattern is highly individual specific. Palatal rugae the primary residual ridges maxillary. Palatal rugae and their role in forensic odontology jain.
The duplication of palatine rugae in the complete denture prosthesis is a useful aid for patient to position his tongue in desired position during denture adaptation. However, since they cannot always be used, sometimes simple techniques can be used successfully in human identification, such as palatal rugoscopy, which is the study of the palatal rugae caldas et al. The medial aspects of the palatal rugae will then not be suitable landmarks for serial cast superimposition when rme and full fixed appliance therapy have been performed. The initiation and termination points of rugae were marked on all 100 images of clinical photographs using ms paint version 5.
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