Results 81 to 90 of about 61,205,348 (298)

Analysis of Deciduous and Permanent Teeth of Children from Brno of 1-15 years of Age with the Focus on Frequency of Dental Caries and Teeth Eruption

open access: yes, 2012
Introduction: Dental caries experience is a very common disease, which needs to be prevented even at children's age. Aim: The aim of the retrospective, epidemiological, sectional study is to conduct a survey on teeth eruption and dental caries experience
J. Huták
core   +1 more source

Radula synthesis by three species of iron mineralizing molluscs: production rate and elemental demand [PDF]

open access: yes, 2008
A cold-shock technique was used to determine radula production rates for the chitons Acanthopleura hirtosa and Plaxiphora albida, and for the limpet Patelloida alticostata, which replaced their radular teeth at rates of 0.40, 0.36 and 0.51 rows d-1 ...
Macey, D.J.   +5 more
core   +1 more source

Nicodemo’s method for age estimation of children, adolescents and young adults: a systematic review focusing on accuracy

open access: yesEgyptian Journal of Forensic Sciences
Background Different methods of age estimation have been proposed and consolidated in the literature. Among them, the Nicodemo, Moraes & Medici Filho Method (1974) (“Nicodemo’s method”—NMM) was developed.
Raquel Porto Alegre Valente   +6 more
doaj   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

open access: yesThe Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

Legal Age Thresholds Estimation in Croatian Children and Adolescents: Accuracy of the Olze, Haavikko, and Demirjian Methods

open access: yesActa Stomatologica Croatica
Objective: This study aimed to explore the accuracy of three established approaches for legal age threshold estimation in a Croatian sample. Materials and methods: Olze’s third molar eruption stages, Haavikko stages, and Demirjian stages were applied in ...
Lei Shi   +3 more
doaj   +1 more source

Dental Age Estimation based on Development Dental Atlas Assessment in a Child/Adolescent Population with Systemic Diseases

open access: yesActa Stomatologica Croatica, 2019
Background: Forensic estimation of chronological age has played an increasingly important role as part of cadaver identification, and also in living individuals due to the phenomenon of immigration and sexual abuse of undocumented trafficked children ...
Cristiana Palmela Pereira   +4 more
doaj   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

open access: yesThe Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes   +2 more
wiley   +1 more source

Dental age estimation through volume matching of teeth imaged by cone-beam CT

open access: yes, 2006
A custom-made voxel counting software for calculating the ratio between pulp canal versus tooth volume based on cone-beam CT tooth images was developed and evaluated.
Willems, Guy   +2 more
core   +1 more source

Comparison between surface-reading and cross-section methods using sagittal otolith for age determination of the marbled sole Pseudopleuronectes yokohamae [PDF]

open access: yes, 2009
To find an appropriate method for age determination in the marbled sole Pseudopleuronectes yokohamae in Tokyo Bay, Japan, sagittal otoliths of 1,343 individuals were observed by surface-reading and cross-section methods and the results were compared ...
Katayama, Satoshi   +6 more
core   +1 more source

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