The application of Kvaal's dental age calculation technique on panoramic dental radiographs

Bosmans, Nathalie; Ann, Peirs; Aly, Medhat; Willems, Guy

doi:10.1016/j.forsciint.2004.08.017

Cited by 123 publications

(123 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A radiograph was easier to prepare than ground sections; moreover, radiography could be applied to living humans without extracting the teeth, allowing greater number of samples to be obtained. Therefore, numerous studies have been conducted to date modifying or testing the dental radiograph-based age-estimation methods (Kvaal et al, 1995;Drusini et al, 1997;Kolltveit et al, 1998;Willems et al, 2002;Bosmans et al, 2005;Paewinsky et al, 2005;Cameriere et al, 2007;Meinl et al, 2007;Drusini, 2008;Landa et al, 2009;Du et al, 2011;Cameriere et al, 2013). Meanwhile, with the development of computed tomography (CT) technology, the pulp cavity and the tooth can now be measured in three-dimensional space (Vandevoort et al, 2004;Yang et al, 2006;Someda et al, 2009;Aboshi et al, 2010;Agematsu et al, 2010;Star et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Human age estimation from lower-canine pulp volume ratio based on Bayes’ theorem with modern Japanese population as prior distribution

Sasaki

Kondo

2014

View full text Add to dashboard Cite

Pulp volume decreases throughout life owing to secondary dentin deposition. Here, we present a Bayesian approach for human age estimation on the basis of the pulp volume ratio from lower-canine teeth. We measured the pulp and tooth volumes of 363 subjects (209 males, 154 females) of known age based on three-dimensional imageries from microcomputed tomography scans. Pulp volume ratio was defined as pulp/tooth volume within the root portion (PVRrt) and its reduction with age was modeled by simple statistical assumptions to produce a likelihood function of PVRrt by fitting the model to the observed data. Following Bayes' theorem, we obtained the probability density function (PDF) of estimated age for a given PVRrt, for males, females, and gender unknowns; we used the modern Japanese population as of 2012 as prior age distribution. The PDF of estimated age provided the mean and 50%, 70%, and 90% prediction intervals, based on which we compared the present ageestimation method with that of Brooks and Suchey (Human Evolution, 5: 227-238), which is based on pubic symphysis metamorphosis. We could not find any advantages of the PVRrt method compared to the Suchey-Brooks method for the case of males or gender unknowns as far as the prediction intervals were concerned. However, for females, the PVRrt method offered comparable precision to the SucheyBrooks method. Taking into account other advantages such as sustainability of the material and continuous property of the age-indicator value, we conclude that the PVRrt method is useful in forensic cases, especially those involving female victims.

show abstract

Section: Introductionmentioning

confidence: 99%

Human age estimation from lower-canine pulp volume ratio based on Bayes’ theorem with modern Japanese population as prior distribution

Sasaki

Kondo

2014

View full text Add to dashboard Cite

show abstract

“…In total, 20 articles [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] were included and several methods were presented in literature (Table 1). In general the methods were classified into three categories, Kvaal's, Ikeda's, and…”

Section: Characteristics Of the Studiesmentioning

confidence: 99%

“…Among the 20 articles, 13 studies [5][6][7][8][9][12][13][14][15][16][17]22,23) were performed on orthopantomograms for measuring of the size of the pulp cavity and 7 studies 4,10,11,[18][19][20][21] were performed on periapical radiographs. Although most studies included range of age, only one study 23) provided insufficient data of age.…”

Section: Introductionmentioning

confidence: 99%

“…All studies executed a reproducibility test in order to evaluate the accuracy of the measurements except for one study. Eight studies 5,8,9,12,13,19,20,23) carried out measurement of the pulp and tooth size by one observer while 12 studies 4,6,7,10,11,[14][15][16][17][18]21,22) carried out by two observers and reexamined to test intraobserver or interobserver reproducibility of the measurements.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dental Age Estimation in Adults: A Review of the Commonly Used Radiological Methods

Jeon¹,

Jang²,

Kim³

et al. 2014

Journal of Oral Medicine and Pain

View full text Add to dashboard Cite

“…He proposed six criteria based on root resorption, secondary dentine in the pulp, cementum annulations, root translucency, tooth wear that includes attrition and periodontal recession. Bosmans et al (9) , another researcher, chose 6 teeth through digital panoramic radiographs and made some criteria for age estimation that included thickness of the pulp chamber and roots, length of the chamber of the pulp. A lot of studies have been performed which do not follow any scoring system or criteria.…”

Section: Introductionmentioning

confidence: 99%

Dental Age Estimation: Conflict of Methodologies

Baber

Waseem²,

Khalid³

et al. 2017

IAM

View full text Add to dashboard Cite

Dental age estimation over half a century has largely been determined by physical examination and use of orthopentograms. Different age assessment Demirjian and Levesque methods have been adopted for age determination. Age determination assessment via orthopentograms is based on calcification of roots, growth of mandible and underlying succedeneous tooth buds. Demirjian et al 1973, proposed 9 stages of tooth Mineralization for age determination. Age determination is necessary in fields of forensic, anthropology, pediatric dentistry and orthodontics. The fact that over a period of time dental wear, caries and different dental diseases are responsible for change in morphology and function of teeth which results in discrepancies between different methods of age estimation. Present study determines a relationship between assessment of age from OPGs by dentist and the chronological age of patient. Subjects were selected randomly of age series from 6-13 years (both male and female) from the radiology department of Dow University of Health Sciences, Karachi. Retained teeth were found to be only among 5% of the total population. 95% of the targeted sample, did not had any retained teeth. Similarly, missing teeth were also not very evident on the radiographs of these children. Based on the results of this study, most of the children had all teeth present in their radiographs regardless of gender and other demographic factors. The study also showed that if the deciduous predecessor is lost early, the eruption of permanent is delayed. Teeth on right side of the arch were found to be erupting before the teeth on left side. The study demonstrates significant relationship between chronological and dental age of patient and OPG as a limited diagnostic aid for age determination.

show abstract

The application of Kvaal's dental age calculation technique on panoramic dental radiographs

Cited by 123 publications

References 5 publications

Human age estimation from lower-canine pulp volume ratio based on Bayes’ theorem with modern Japanese population as prior distribution

Human age estimation from lower-canine pulp volume ratio based on Bayes’ theorem with modern Japanese population as prior distribution

Dental Age Estimation in Adults: A Review of the Commonly Used Radiological Methods

Dental Age Estimation: Conflict of Methodologies

Contact Info

Product

Resources

About