An observational study in Healthy, sponsored by Cairo University. Status unknown at 1 site in Egypt. Open to participants aged 20 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-08-30.
Sponsored by Cairo University · Observational
Forensic odontology is a branch of forensic science that utilizes a dentist's expertise in identification of individuals for whom traditional methods of identification aren't accessible due to a lack of common identification features. Medico-legal issues, natural catastrophes such as tsunamis, earthquakes, and explosions, death verification in monetary concerns, religious and social reasons are all examples of situations that require identification. Age, stature, sex and ethnicity are the "big four" determinants of personal identification. Dental age estimation has the benefit of that teeth are less influenced by external physical, chemical, or mechanical variables than other portions of the skeleton. Secondary dentin deposition in human teeth progresses with age that results in reduction in the size of the tooth pulp cavity which can be assessed as an age indicator. A significant relationship between pulp width and age was originally discovered in a study by Kvaal et al., 1995 who created regression formulae for age prediction using periapical radiograph by measuring of pulp size. Also, the assessment of pulp/tooth volume ratio relying on the gradual reduction in pulp volume produced by continuous apposition of dentin during life is one well-known dental age estimation approach. Cone beam computed tomography (CBCT) provides accurate three-dimensional images of the maxillofacial area. In addition, CBCT may be beneficial in some forensic situations, as it has massive benefits for post-mortem forensic imaging, as it offers skeletal imaging with high resolution, cheap cost, simplicity and portability. CBCT can be used in forensic age assessment since it is non-invasive and allows for the reconstruction of images in multiple planes to display anatomical and imaged elements in distinct planes. Our hypothesis is that pulp space analysis is totally different between different ages and that there is a correlation between age and pulp space analysis that could be of a forensic significance for age estimation in the investigated population.
In this observational cross-sectional study, cone beam computed tomography scans will be recruited that are with the required complement of teeth and in the age range between 20 and 60 years then, correlation between chronological age versus cone beam computed tomography age through pulp space analysis will be done by two methods which are linear measurements and volumetric measurements of pulp and tooth size. First, linear measurements will be done according to kvaal's et al approach, measurements from mandibular lateral incisors, canines and first premolars and maxillary central and lateral incisors and second premolars were most strongly correlated with age, so these teeth will be selected for the investigation. A paired t-test on these measurements showed that there were no significant differences between teeth from the left and the right side of the jaw. Consequently, teeth from either the left or the right side will be chosen, whichever will be best suited for measurement. Not knowing the age and gender of the individual, the following measurements will be carried out on the radiographs of all six types of teeth: the maximum tooth length (T), pulp length and root length (R) on the mesial surface from the enamel-cementum junction (ECJ) to the root apex, the root and pulp width both at the ECJ (level A) and at the midroot level, i.e. halfway between the ECJ and the apex of the root (level C), as well as at the midpoint between the ECJ and midroot level (level B). Second, volumetric Measurements will be done to calculate pulp/ tooth volume ratio.
Cairo University is the lead sponsor of 4,909 studies on the registry; 1,445 are open to participants now.
Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.
Counted across the registry records on this site, refreshed daily.
CBCT scans that meet the eligibility criteria for age estimation
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Single group will be selected for age estimation using CBCT Scans
Radiation: CBCT
Cone beam computed tomographic images selected for age estimation
Pulp/ tooth volume ratio CBCT age to be correlated with chronological age
Pulp/ tooth volume ratio CBCT age to be correlated with chronological age using volumetric segmentation of CBCT software in mm3.
Time frame: Through study completion, an average of 1 year
Analysis of pulp size using linear measurements.
Analysis of pulp size using linear measurements tool of CBCT software in mm.
Time frame: Through study completion, an average of 1 year
Plan to share: No
Started Apr 2022 (actual). Primary completion is estimated for Nov 2022, 7 months after the start.
How these figures are worked out, and which studies are left out of them.
This study is status unknown, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.