The crash of LOT flight 007: dental identification

The authors record the contribution of dentistry to the identification of American victims of one of the most significant aircraft tragedies involving American athletes-the March 1980 crash of a Soviet-made Ilyushin 62 Polish jetliner and the deaths of 31 Americans including a 22-member U.S. amateur boxing team with several U.S. Olympic team candidates. Preparedness was a factor in the dental team's ability to resolve many notable and unexpected problems. Jurisdictional restraints that Polish authorities imposed on the U.S. investigative team hindered its efforts to identify American passengers. The team used dental and fingerprint methods of identification whenever possible and obtained further evidence from anthropologic methods, visual recognition, and personal effects. Dental readiness, organization, methodology, and lessons learned are documented in this paper.     

Identification via dental remains: Pan American Flight 759

Pan American Flight 759 crashed on takeoff from New Orleans International Airport on 9 July 1982. One-hundred-and-fifty-four persons lost their lives making this the second worst air crash in the United States. A dental identification team was assembled and began working the next morning. Ninety-three victims were positively identified by dental means and twenty-three other victims had strong supporting dental evidence as to their identities. The organization, method used, planning, and problem resolution concerning the dental team for this crash are presented.     

Changes in perikymata and their significance to a postmortem dental identification

Perikymata are wavelike features that are normally found in the surface enamel of teeth. These structures are known to undergo regressive changes due to gradual attrition, mechanical abrasion, or chemical erosion. Forensic science has suggested that significance be placed on some forms of their loss as indicators of age, oral habits, and alignment of individual teeth. The dental identification of victims of a Vietnam War military aircraft crash is presented. The unusual pattern of perikymata change on two of the teeth suggests the antemortem existence of a removable partial denture. These findings support the exclusionary conclusions.     

Methods for identification of 28 burn victims following a 1996 bus accident in Spain

A car collided head-on with a bus containing 56 passengers plus the driver. A few seconds after the crash, the bus caught fire and 28 persons (15 male and 13 female) lost their lives. All the deceased were almost completely incinerated. To establish the identity of the victims, the judge in charge of the case designated a multidisciplinary Identification Commission. Postmortem procedures included a general external examination, routine photographs, dental examination, dental (intraoral and extraoral) and general radiographs (chest, ankle, etc.), and complementary biological methods for identification (e.g., DNA analysis). The antemortem information, including dental and medical records available, were transcribed onto the INTERPOL disaster victim identification forms. The detailed ante- and postmortem information were compared manually. In this disaster dental identity could be established in 57% of the victims, whereas dental evidence did not allow by itself the identification of 12 burned victims. Odontological examination and complementary radiographic procedures were found to be accurate, economic and rapid methods of identifying badly burned victims in this bus accident.     

The diversity of adult dental patterns in the United States and the implications for personal identification

Few would argue about the individuality of dental radiographs for forensic identification, but when an antemortem/postmortem comparison is based strictly on dental treatment notes and/or charts it becomes less certain. In the past, attempts to validate the high diversity of dental patterns created by combinations of missing, filled, and unrestored teeth have been based on unfounded statistical assumptions. The goal of this research is to present a statistically valid method of assessing dental pattern diversity for the identification of missing individuals. Empirical observation of large reference datasets was found to be the best technique for assessing dental diversity. This technique is nearly identical to the procedure used for mitochondrial DNA casework. For the research presented in this paper, two large datasets were used, one composed of U.S. military personnel and one composed of U.S. civilians. Dental patterns were found to be very diverse on a scale that is comparable to mtDNA. In addition, it was found that the diversity values remain very consistent regardless of the level of detail present in the treatment records. Overall, combinations of missing, filled, and unrestored teeth were found to be very individualistic and an excellent source for forensic identification.     

西安“六.六”空难的法医学鉴定

本文报告了１９９４年６月６日，中国西北民航Ｂ—２１６０号客机在西安失事的法医学鉴定。机上乘员１６０人全部遇难、死难中，以撞击伤为主，主要死因为多脏器严重损伤、创伤休克、大出血。１６０名遇难者中，１３９人经体貌特征和遗物被确认，６例通过血型被认定，３例通过指纹被认定，其余通过牙齿被确认。本文还讨论了如死亡时间等空难中的法医学处理问题。     

Searching for Kin Amidst Tragedy—Disaster Victim Identification Operations for US Bangla Flight 211

The nature of air disasters includes factors that exacerbate challenges in the identification process. Of the 49 deceased in the US Bangla air crash in Kathmandu, Nepal, four were intact, 11 presented with burn injuries, another 11 presented with partial charring, and 23 were completely charred. Personal belongings were useful in the identification phases for all types of victims. Fingerprints were obtainable and useful in intact victims and victims with less severe burn injuries; medical and surgical information was useful in bodies with burn injuries; finally, dental findings were useful in cases of extensive charring. Other useful methods in the process included marks of identification, physical features, and exclusion. In certain resource‐limited settings, especially in closed population disasters, where scientific identification (DNA, dental records, etc.) is not currently available, personal belongings, clothing, and physical findings analyzed by an identification team using a structured organization may be cautiously used as the primary means of identification.     

Tenerife revisited: the critical role of dentistry

The authors record the contribution of dentistry to the identification of victims of one of the most significant disasters in the history of aviation-the March 1977 collision of two Boeing 747 jumbo jets in the Canary Islands, which resulted in 583 fatalities. Dental identification was the primary method of victim identification because a high percentage of the bodies were severely burned. Virtually all aspects of the U.S. identification efforts have been reported with the exception of the valuable role of dentistry. The dental team's organization, methodology, and significant contributions to forensic dentistry and a variety of remarkable problems that the team encountered are documented.     

The USS Iowa disaster: success of the forensic dental team

The authors record the contributions of dentistry to the identification of the crew members who were in one of the most significant peacetime military accidents in U.S. Navy history-the April 1989 explosion in a gun turret on the battleship USS Iowa and the deaths of 47 U.S. Navy personnel. Dental identification was the primary means of identification for most because a very high percentage of the bodies were burned or fragmented. The dental-identification team's success was a direct result of its preparedness, its use of dental personnel with mass-disaster experience, and the overall excellent quality of the antemortem dental records. The dental-identification team's successful involvement in the USS Iowa tragedy was considered a model for success and therefore was instrumental in contributing to the development of the American Board of Forensic Odontology "Guidelines for the Development of a Disaster Dental Identification Team."     

Forensic odontologists successfully identify tsunami victims in Phuket, Thailand

More than a year has elapsed since the seaquake in South-East Asia in December 2004, and more than 92% of the non-Thai victims have been identified. About 80% of the non-Thai victims were identified by dental information. This high success rate of dental identification in Thailand was a matter of surprise for many forensic experts. Identification based on dental information is a highly efficient, reliable and rapid procedure. The conclusions drawn from the identification of tsunami victims in Thailand were recently discussed at the 17th Meeting of the Standing Committee on Disaster Victim Identification of Interpol in Lyon, and may be used to formulate new guidelines for the identification of victims.     

Scene investigation, identification, and victim examination following the accident of Galaxy 203: disaster preplanning does work

Galaxy Airlines Flight 203 crashed following takeoff from Reno-Cannon International Airport on 21 Jan. 1985. Sixty-eight persons on board the aircraft perished in the initial crash and resultant fire which followed. Two victims expired as a result of crash injuries within subsequent days and one passenger survived. A community disaster response plan was in place and had been practiced by local government agencies before this incident. The successes of this preplanned response, as well as methods of actual recovery, identification, and examination of the victims is presented.     

Forensic dental training in the dental school curriculum

This article reviews the literature regarding forensic education in the dental school curriculum and describes an exercise in forensic identification of victims of a mass casualty. Radiographs were made of dentate human cadavers in the gross anatomy laboratory at the Southern Illinois School of Dental Medicine. The jaws were then removed to provide "wet specimens" for the exercise. Several restorations were performed on the cadaver teeth, after which radiographs of the dissected jaws were made. One author wrote up mock dental records for each of the victims. These records included the first set or "premortem" radiographs. Students participating in the exercise were provided with a plane crash scenario, the dental records of the passengers on the manifest, the dissected jaws, and the second set or "postmortem" radiographs. Students were expected to form three teams. The first two teams evaluated the ante-mortem and postmortem dental records. The third team compared the ante-mortem and postmortem records to arrive at identification. The purpose of the exercise was twofold. It introduced dental students to forensic dentistry and emphasized the need for complete and accurate record keeping in the dental office. Several factors lessened the realism of the exercise and made it difficult to reproduce in the future. These included the uniformity of the dental records and the destruction of cadaver material following the exercise.     

Comparative study of efficiency of dental methods for identification of burn victims in two bus accidents in Spain

This article deals with the usefulness and limitations of dental identification methods of human burn victims of two buses accidents in Spain. The first accident happened in Bailen in 1996 and involved 28 badly burned Spanish victims. In the second, in Illescas in 1997, 8 Japanese and 2 Spanish victims lost their lives. In both accidents, postmortem forensic procedures for identification were used, including external and internal examination, routine photographs, and dental examination. Dental identification was established in 57% of the cases in the Bailen accident and 80% in the Illescas accident. The success rate of dental identification varies considerably depending on the nature of the accident, the nationality and country of residence of the victims, the incidence of dental treatment, the availability of adequate dental records, and the degree of dental injuries. A discussion of procedures and methods for identification recommended when dealing with burn victims is included.     

Dental identification problems in the Abu Dhabi air accident

The forensic odontological examination of 112 victims in the 1983 air accident near Abu Dhabi is described with particular reference to the problems encountered in the age assessment of the 26 children, and serves to illustrate that dental identification in aviation accidents may be of only limited application in Asian victims. Following this accident, other means of identification had misguidedly been removed by the recovery teams. Of those identified, half were by dental means alone, but this amounted to only 6.24% of the total number of victims.     

Three fatalities in flash fire with variable dental charring

The deaths of three teenagers in an automobile crash and flash fire are presented. The inability to draw valid conclusions about whether the victims were dead prior to the fire based on dental examination is discussed.     

Identification of serial homicide victims in the "Green River Murder" investigation

The Green River Murder Investigation in King County, Washington, is currently the longest and most active serial murder investigation in U.S. history. To date, little information has been reported on methods used in identification of serial murder victims. In this paper, various methods used in victim identification are reviewed and difficulties encountered during the course of the investigation are described. The experience of the authors is presented in order to acquaint other agencies with problems of victim identification associated with these serial murder victims and to provide key methods that may be useful in other such investigations.     

WinID2 versus CAPMI4: two computer-assisted dental identification systems

Disasters produce victims that require identification. Comparing antemortem and postmortem dental records provides an important means of identification. Computers have assisted this process. Currently, the principal computer programs are CAPMI4 and WinID2. The present study compared these programs on a sample of 100 simulated victims and 105 simulated postmortem fragments. CAPMI4 provided 48 correct matches and WinID2 provided 71 correct matches. In addition, comparisons were made within WinID2 to determine which of its three dental data sets was the most successful for suggesting correct matches.     

Jonestown tragedy revisited: the role of dentistry

The authors record the contribution of dentistry to the identification of victims of one of the most significant tragedies of the 20th century--the mass suicide of members of a religious cult, which initially resulted in 913 deaths and ultimately in 923. Though forensic dentistry played a significant part in identifying victims, the only report by members of the United States identification team did not examine dentistry's valuable role. Furthermore, the dental-investigation aspects have been mentioned merely in passing by the news media despite an infinite number of stories on the tragedy ranging from factual to expose. The dental team's organization, methodology, and significant contributions to forensic dentistry and a variety of remarkable problems that the team encountered and the lessons learned from them are documented in this paper.