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Introduction: Forensic odontology is an important and evolving branch. It has been established for critical issues like medi- colegal cases and identification of a dead person. Radiographic assisted documentation will provide objective information including the precise recording of the uniqueness of every individual where it has been used extensively in dental identification based on anatomy and by comparing maxillofacial skeletal landmarks in antemortem and post mortem records. Main body: Human Identification is mainly based on a dead body decomposition state. More likely of missing persons and the identification of individuals in conditions like criminal investigations and mass disasters. Odontological method for human identification is used commonly as it is simple by comparing with other methods, but complex in execution and requires skills and expertise. There are so many radiological techniques for forensic purposes like Computer tomography, cone-beam com- puter tomography, Orthopantomogram, 3D facial reconstruction, Radiovisiography, and Virtopsy. Objectives: This review highlights the different radiographic techniques and procedures and its application in forensic odon- tology. Source search criteria: Data were obtained and analyzed from previously published literature and electronic database search- es of relevant published literature from PubMed and Google Scholarfrom the 2001 to 2021 year. Conclusion: Imaging technologies and radiographs have become a vital component of modern medical practice and foren- sic odontology. The application of any of the mentioned techniques depends on the availability of previous images, data, or skeletal findings for Identification. So forensic radiology has a potential for crime-solving and is useful in conventional dental identification based on anatomy and by comparing maxillofacial skeletal landmarks in antemortem and post-mortem records, as they have become a crucial part of dental practice as well as in forensic odontology for diagnosis of disease, treatment plan- ning, identification of tooth structures, and age estimation.
RESUMO
Introduction: Bone grafts are frequently used in the treatment of bone defects. Bone harvesting can cause postoperative complications and sometimes does not provide a sufficient quantity of bone. Therefore, synthetic biomaterials have been investigated as an alternative to autogenous bone grafts. Aim and Objectives: The aim of this study was to evaluate and compare bovine derived hydroxyapatite (BHA) and synthetic hydroxyapatite (SHA) graft material as bone graft substitute in maxillary cystic bony defects. Patients were analyzed by computerized densitometric study and digital radiography. Materials and Methods: In this study, 12 patients in each group were included randomly after clinical and radiological evaluation. The integration of hydroxyapatite was assessed with mean bone density, surgical site margin, and radiological bone formation characteristics, of the successful graft cases using computer densitometry and radio-visiograph. Statistical analysis was carried out using Mann-Whitney U-test, Wilcoxon matched pairs test and paired t-test. Results: By the end of 24 th week, the grafted defects radiologically and statistically showed similar volumes of bone formation. However, the significant changes observed in the formation of bone and merging of material and surgical site margin at 1 st week to 1 st month. The results were significant and correlating with all the parameters showing the necessity of the grafting for early bone formation. However, the bone formation pattern is different in both BHA and SHA group at 3 rd month interval with significant P value. Conclusion: Both BHA and SHA graft materials are biocompatible for filling bone defects, showing less resorption and enhanced bone formation with similar efficacy. Our study showed maximum bone healing within 12 weeks of grafting of defects. The BHA is economical; however, price difference between the two is very nominal.