Estudo rugoscópico em gêmeos monozigóticos na cidade de João Pessoa/PB

Abstract

Introduction: The Forensic Dentistry is a science that puts the knowledge of Dentistry in favor of society and Justice. One of the uses of this specialty is a Human identification, of the quality of the study of Palatoscopy. Rugoscopia or Palatoscopy is the study of ridges and grooves present in the mucosa of the hard palate. These wrinkles remain unchanged throughout life and follow a genetic pattern, being important not to study human identification. Objective: To observe characteristics of the number, disposition and shape of the palms in monozygotic twin siblings in the city of João Pessoa, Paraíba, Brazil. Methodology: Observational, blind and transverse study with comparative-statistical procedure. We collected 46 rugoscopic tokens, with models in plaster, of 23 pairs of monozygotic twin siblings chosen for convenience. For rugoscopic analysis in relation to a number of wrinkles, the Castro-Silva, Silva and Veiga classification (2014) was adopted, with the bands: 2-7, 8-14 or 15-23. Carrea, (1937), in: type I (wrinkles directed medially from back to front); Type II (wrinkles directed perpendicular to the median line); Type III (wrinkles directed medially from front to back); Type IV (wrinkles directed in different directions). To analyze the shapes were divided into Bassauri, (1961) in lines of type: point, line, angle, curve, circular, sinuous and polymorphic. Results: It was verified that a sample was constituted of 61% female and an average of 23.3 years. (P = 0.727) There are no results for this search. There was a higher prevalence of type IV (twin 1 - 78.3% and twin 2 - 82.7%), with no statistically significant difference (p = 0.333). (43.63%) of the 369 wrinkles observed in the total of 23 pairs of twins and was not found in the circular wrinkle. There was a concordance of 65.2% in relation to the number of literacy teachers, 69.5% in relation to their disposition, the wrinkle that presented greater agreement in relation to the form for a third wrinkle on the left side. Conclusion: The monozygotic twins tend to have between 8 and 14 wrinkles, directed in varied and sinuous directions. Although the twins present the same DNA, a palatine rugoscopy presents different for each one of the siblings that compose an effectiveness of the rugoscopic identification method.