Dimensional characteristics of the Filipino dentition

Potter, Rosario H. Yap; Alcazaren, Athena B.; Herbosa, Francisco M.; Tomaneng, Jesus

doi:10.1002/ajpa.1330550106

Cited by 43 publications

(27 citation statements)

References 22 publications

(25 reference statements)

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“…Application of discriminant function analysis (DA) resulted in ∼95% accuracy in odontometric sex identification [9,10], further enhancing the dentition's role. However, these results are exceptions, for other studies have found that dental measurements predict sex with a precision ranging between 77% and 87% [11][12][13][14]. Because of such sub-optimal odontometric sex prediction, alternative tooth measurements and combinations have been attempted.…”

Section: Introductionmentioning

confidence: 65%

“…Since teeth are one of the strongest tissues in the human body and are known to resist postmortem insults, they assume importance when preferred predictors such as the pelvis or long bones are destroyed or fragmented. However, sex prediction from tooth measurements using DA has most often produced only moderate levels of accuracy [11][12][13][14], relegating such measurements to a mere 'adjunct' in sex assessment. Moreover, some believe that DA can be problematic since "it does not allow for direct prediction of group membership for the dependent variable" (page 785 in [25]).…”

Section: Discussionmentioning

confidence: 99%

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Odontometric sex assessment from logistic regression analysis

2010

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Odontometric sex assessment is considered a useful adjunct to more robust predictors such as pelvic and cranial bones, and discriminant function analysis (DA) has been widely applied in dental sex assessment. Logistic regression analysis (LRA) is considered a better alternative, although still untested in odontometric sex prediction. This study examines the use of LRA in dental sex assessment and compares its success to DA. Mesiodistal and buccolingual dimensions of all teeth, except third molars, were obtained on dental stone casts of 105 young adults (52 females, 53 males) using digital caliper. Application of LRA to teeth of both jaws combined and to maxillary and mandibular teeth separately yielded correct sex allocation rates ranging from 76% to 100%, which proved superior to sex assessment using DA (∼52-71%). LRA enabled optimal sex prediction (100%) when all teeth in both the jaws were included. Results were not as accurate when only maxillary (76.2%) or mandibular (84.8%) teeth were used. To assess and compare the use of these multivariate techniques in practical forensic casework, >25% of tooth variables were randomly deleted. LRA still performed better (∼91% sex allocation accuracy vs. 62.9% for DA), indicating that LRA may be superior in its ability to predict sex irrespective of the presence of complete or incomplete sets of dentitions and should be preferred in dental sex assessment. The 100% success rate of LRA in correctly assigning sex is also noteworthy considering that, in general, tooth measurements have yielded sub-optimal sex prediction levels. However, unambiguous sex assessment is possible only when the entire dentition is available and correct sex allocation levels decreases when teeth are missing.

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Section: Introductionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Odontometric sex assessment from logistic regression analysis

2010

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“…'Filipino male data taken from Table 3 of Potter et al (1981). 3Data on Magdalenian pooled sexes taken from Table 21 of Frayer (1978).…”

Section: Discussionmentioning

confidence: 99%

Yugoslav Mesolithic dental reduction

y'Edynak

1989

American J Phys Anthropol

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Yugoslav Mesolithic dentition exhibits maximum mesiodistal reduction compared with contemporary European and North African groups. This reduction is not explained entirely by attrition, and may be seen as a continuation of the European Upper Paleolithic trend. Buccolingual dimension does not reduce as much. In fact, this dimension in premolars and molars is larger than in other groups. This observation also occurs in Natufians, who were grain collectors, hunters, and gatherers. The Yugoslav Mesolithic group was collecting and domesticating Cerelia as well as fishing and hunting. Linear enamel hypoplasias (LEH) indicate childhood stress through the fifth year, which corroborates previously reported incidence of rickets in this group. The central maxillary incisors and canines manifest higher degrees of LEH, but the appearance on the second molars suggest a more severe physiological disruption. Sex differences in distributions of alveolar resorption and calculus suggest differences in diet or nutritional stress. Previous reports indicate that females had higher incidence of osteomalacia. If so, female nutritional stress may explain the extreme mesiodistal reduction and minimal sexual dimorphism in this group.

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“…The MD measurements were defined as the greatest dimension between the contact points on the proximal surfaces of the crown, measured with the caliper beaks placed occlusally along the long axis of the tooth. 16,18 When teeth were rotated or misaligned, measurements were taken between points on the proximal surfaces of the crown where it was considered that contact with adjacent teeth would normally have occurred. 18 Although this definition was followed diligently, the measurements obtained were, in effect, the maximum extent of practical access by the caliper, which may not necessarily coincide with the anatomical crest of curvature on the tooth surfaces.…”

Section: Methodsmentioning

confidence: 99%