Inter-rater reliability of stress signatures in exfoliated primary dentition - Improving scientific rigor and reproducibility in histological data collection.

Accentuated Lines (ALs) in tooth enamel can reflect metabolic disruptions from physiological or psychological stresses during development. They can therefore serve as a retrospective biomarker of generalized stress exposure in archaeological and clinical research. However, little consensus exists on when ALs are identified and inter-rater reliability is poorly quantified across studies.

How well do parents identify their child's baby teeth? Engagement and accuracy of parent-reported information on a tooth checklist survey.

Objectives: Naturally exfoliated primary teeth are being increasingly collected in child development studies. Most of these odontological collections and tooth biobanks use parent-reported information from questionnaires or tooth checklists to collect data on offspring teeth. To the best of the authors' knowledge, no studies have assessed parental engagement in tooth checklists, nor parental accuracy in identifying their child's baby tooth.

Dental microstructure records life history events: A histological study of mandrills (Mandrillus sphinx) from Gabon.

Accentuated lines in dental microstructure are hypothesized to correlate with potentially stressful life history events, but our understanding of when, how and why such accentuated lines form in relation to stressful events is limited. We examined accentuated line formation and life history events in the teeth of three naturally deceased mandrills (Mandrillus sphinx, Cercopithecidae), for whom we had detailed life history information. We determined the ages at formation of accentuated lines in histological tooth sections and used dates of birth and death to calibrate dental histology to calendar time and individual age.

Majewski/Microcephalic Osteodysplastic Primordial Dwarfism Type II (MOPDII) with generalised microdontia in the 4th millennium BCE Eastern Mediterranean.

Objective: This research evaluates the occurrence of generalised microdontia and proportionate osteodysplasia in human remains from a Chalcolithic cemetery with early evidence of metalworking in Cyprus (Souskiou-Laona; 3500-2800 BCE).

Materials: Skeletal and dental remains from Tomb 236 Individual A, in comparison with other human remains from Souskiou-Laona (MNI: 203).

Methods: Macroscopic, microscopic, and metric observation of osteodysplasia and microdontia.

First permanent molars with accentuated line patterns: Assessment of childhood health in an urban complex of the fifth millennium before the present.

Objectives: The objectives are 1) to calculate the position of highly accentuated lines in dental enamel of a group of individuals from Shahr-i-Sokhta, a thriving urban centre in Bronze Age South West Asia; 2) to identify peak frequencies of physiologically stressful periods during early childhood of these individuals; and 3) to relate these peak frequencies to developmental milestones at population level.

Design: We analysed highly accentuated lines in the enamel of nine (n = 9) permanent mandibular first molars of nine individuals from the 5th millennium before the present urban and long-distance-trading complex, Shahr-i Sokhta (Iran). Age at death ranged between 4.

Odontochronologies in male and female mandrills (Mandrillus sphinx) and the development of dental sexual dimorphism.

Objectives: We examine how dental sexual dimorphism develops in mandrills, an extremely sexually dimorphic primate. We aimed to (a) establish the chronology of dental development (odontochronology) in male and female mandrills, (b) understand interindividual and intersex variation in odontochronologies, and (c) determine how dental sexual dimorphism is achieved.

Materials And Methods: We prepared histological ground sections from the permanent teeth of four female and four male mandrills from the semi-free ranging colony at the Centre International de Recherches Médicales, Franceville, Gabon.