Age estimation in adults by dental imaging assessment systematic review

Marroquin, Talia Yolanda; Karkhanis, Shalmira; Kvaal, Sigrid I.; Vasudavan, Sivabalan; Kruger, Estie; Tennant, Marc

doi:10.1016/j.forsciint.2017.03.007

Cited by 104 publications

(123 citation statements)

References 53 publications

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“…In forensic age estimation, the grade of development of various skeletal and dental features is determined and compared with reference values [1]. Once tooth development is complete, only degenerative dental characteristics can be used for age assessment [2][3][4][5][6]. One such feature has long been known to be the reduction of the dental pulp due to secondary dentine formation [3,[7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of secondary dentin formation for forensic age assessment by means of semi-automatic segmented ultrahigh field 9.4 T UTE MRI datasets

et al. 2020

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Dental methods are an important element of forensic age assessment of living persons. After the development of all the teeth, including third molars, is completed, degenerative characteristics can be used to assess age. The radiologically detectable reduction of the dental pulp cavity has been described as such a feature. We investigated the suitability of ultrahigh field 9.4 T ultrashort time echo (UTE) magnetic resonance imaging (MRI) for the evaluation of pulp cavity volume in relation to the total tooth volume in 4 extracted human teeth. The volume calculations were performed after semi-automatic segmentation by software AMIRA using the different intensities of the structures in the MRI dataset. The automatically selected intensity range was adjusted manually to the structures. The visual distinction of pulp and tooth structure was possible in all cases with in-plane resolution < 70 μm. Ratios of tooth/pulp volume were calculated, which could be suitable for age estimation procedures. Intensity shifts within the pulp were not always correctly assigned by the software in the course of segmentation. 9.4 T UTE-MRI technology is a forward-looking, radiation-free procedure that allows the volume of the dental pulp to be determined at high spatial resolution and is thus potentially a valuable instrument for the age assessment of living persons.

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Section: Introductionmentioning

confidence: 99%

Evaluation of secondary dentin formation for forensic age assessment by means of semi-automatic segmented ultrahigh field 9.4 T UTE MRI datasets

et al. 2020

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“…The field of forensic odontology involves personal identification of unknown corpses using oral characteristics, including dental treatment marks. It also involves a wide range of tasks such as sex and age estimation using skeletal remains and DNA typing, as well as estimation of time since death [18][19][20][21][22][23][24][25] . Most subjects are appraised using cranial bones, including the calvarium.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the Morphological Structures of the Human Calvarium and Turtle Shell

Ishikawa

Hirayama

Miake

et al. 2019

J. Hard Tissue Biology.

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In the field of forensic odontology, not only personal identification using oral conditions, including dental treatment marks and DNA typing, but also species identification, age or sex estimation using cranial or partial bones, and time after death may also be applicable as estimation methods. Among these many tasks, one of the most difficult is species identification of fragmented calvarium. This is because the calvarium has poor morphological features, except that it is a flat bone, and few reports have described how to differentiate it. In this study, a simple identification method for turtle shell (carapace and plastron) whose morphological characteristics closely resembled those of the calvarium was applied. As a result, in an enlarged image obtained using a stereoscopic microscope, the characteristics of each suture pattern could be confirmed. In the decalcified and non-decalcified bone specimens, the difference in the inner/outer laminar structure and the specific structural difference of the cancellous bone-equivalent part were confirmed. Furthermore, most of the features could be obtained in the destructive inspection when it was examined using micro CT imaging to determine whether discrimination by nondestructive inspection was possible or not. No significant difference in ingredients was found using the Electron Probe X-ray Micro Analyzer. The calvarium was more calcified than the carapace but less calcified than the plastron. From these results, we suggest that micro CT imaging is effective for discriminating between the calvarium and turtle shell in a short time.

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“…Lamendin's method is thought to be more accurate in terms of age estimation compared to many other methods. However, Marroquin et al stated that repeatability is better and the overall standard estimations are lower in Kvaal's method in comparison with volumetric studies (23).…”

Section: Dental Methodsmentioning

confidence: 95%

“…For decades, dental age estimation methods based on different combinations of tooth, pulp, pulp chamber, and root ratios and other timedependent changes or characteristics on dental structure have been widely studied in the literature. There are two main dental methods that are widely used for forensic age estimation in the geriatric population for living individuals and corpses (22)(23)(24)(25)(26). Kvaal's and Cameriere's methods are based on pulp, tooth, and root length ratios, which can be determined using mesial and apical X-ray images (27).…”

Section: Dental Methodsmentioning

confidence: 99%

Forensic age estimation in the geriatric population

Akçan¹,

Şerif²,

Tümer³

2019

tjgeri

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In the geriatric population, forensic age estimation could be essential for insurance-related issues, retirement processes, and work permits. Although cases of forensic age estimation are dominant in adolescents and early adults, nowadays the practice of forensic age determination is increasing in the geriatric population as well. Forensic age estimation, in living and deceased individuals, is among the most commonly studied topics in clinical forensic medicine. However, only few studies have been performed for age estimation in the geriatric population. Based on skeletal bone morphology, skeletal bone radiological traits, chronological dental changes, facial traits, degenerative processes, and automated systems, there are several methods for forensic age estimation in adults and partly in the geriatric population. This paper aims to the draw attention of health-care professionals by discussing methods used for forensic age estimation in the geriatric population.

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Age estimation in adults by dental imaging assessment systematic review

Cited by 104 publications

References 53 publications

Evaluation of secondary dentin formation for forensic age assessment by means of semi-automatic segmented ultrahigh field 9.4 T UTE MRI datasets

Evaluation of secondary dentin formation for forensic age assessment by means of semi-automatic segmented ultrahigh field 9.4 T UTE MRI datasets

Comparison of the Morphological Structures of the Human Calvarium and Turtle Shell

Forensic age estimation in the geriatric population

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