Application of the Kvaal method for adult dental age estimation using Cone Beam Computed Tomography (CBCT).
Different non-invasive methods have been proposed for dental age estimation in adults, with the Kvaal et al. method as one of the more frequently tested in different populations. The purpose of this study was to apply the Kvaal et al. method for dental age estimation on modern volumetric data from 3D digital systems. To this end, 101 CBCT images from a Malaysian population were used. Fifty-five per cent were female (n = 55), and forty-five percent were male (n = 46), with a median age of 31 years for both sexes. As tomographs allow the observer to obtain a sagittal and coronal view of the teeth, the Kvaal pulp/root width measurements and ratios were calculated in the bucco-lingual and mesio-distal aspects of the tooth. From these data different linear regression models and formulae were built. The most accurate models for estimating age were obtained from a diverse combination of measurements (SEE ±10.58 years), and for the mesio-distal measurements of the central incisor at level A (SEE ±12.84 years). This accuracy, however is outside an acceptable range in for forensic application (SEE ±10.00 years), and is also more time consuming than the original approach based on dental radiographs.
University of Western Australia, School of Anatomy Physiology and Human Biology, 35 Stirling Hwy, Crawley, WA 6009, Australia. Electronic address: tymarroquinp@gmail.com.
Talia Yolanda
TY
Marroquin Penaloza
University of Western Australia, School of Anatomy Physiology and Human Biology, 35 Stirling Hwy, Crawley, WA 6009, Australia. Electronic address: shalmira83@gmail.com.
Shalmira
S
Karkhanis
University of Oslo, Faculty of Dentistry, Institute of Clinical Dentistry, P.O. Box 1109, Blindern, N-0317 Oslo, Norway. Electronic address: s.i.kvaal@odont.uio.no.
Sigrid Ingeborg
SI
Kvaal
Radiology Unit, Dental Faculty University of Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia. Electronic address: nfirdaus@ukm.edu.my.
Firdaus
F
Nurul
Faculty of Dentistry, University of Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia. Electronic address: shalinik@ukm.edu.my.
Shalini
S
Kanagasingam
University of Western Australia, School of Anatomy Physiology and Human Biology, 35 Stirling Hwy, Crawley, WA 6009, Australia. Electronic address: Daniel.franklin@uwa.edu.au.
Daniel
D
Franklin
University of Western Australia, School of Anatomy Physiology and Human Biology, 35 Stirling Hwy, Crawley, WA 6009, Australia. Electronic address: drsiva@smilewithconfidence.com.au.
Sivabalan
S
Vasudavan
University of Western Australia, School of Anatomy Physiology and Human Biology, 35 Stirling Hwy, Crawley, WA 6009, Australia. Electronic address: estie.kruger@uwa.edu.au.
Estie
E
Kruger
University of Western Australia, School of Anatomy Physiology and Human Biology, 35 Stirling Hwy, Crawley, WA 6009, Australia. Electronic address: marc.tennant@uwa.edu.au.
Marc
M
Tennant
D000293:Adolescent; D000328:Adult; D000366:Age Determination by Teeth / Q000379:methods*; D000368:Aged; D054893:Cone-Beam Computed Tomography; D003782:Dental Pulp / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D016014:Linear Models; D008297:Male; D008437:Maxilla; D008875:Middle Aged; D009811:Odontometry; D014070:Tooth / Q000000981:diagnostic imaging*; D055815:Young Adult
Adults; Age estimation; Kvaal method; Tomography