Results 31 to 40 of about 785,671 (327)

Hyaenodontidae of the upper Eocene of California [PDF]

open access: yes, 1933
Since the announcement(1) of the discovery of upper Eocene mammals in the Sespe deposits north of the Simi Valley, California, excavations have been continued in these beds, particularly at Locality 150 C. I. T. Vert.
Stock, Chester
core   +1 more source

Non-Syndromic Oligodontia of Primary and Permanent Dentition: 5 Year Follow Up- A Rare Case Report [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2013
Oligodontia designates the congenital absence of six or more permanent teeth, excluding the third molars. Oligodontia of primary and permanent dentition is a rare observance.
Joyson Moses   +3 more
doaj   +1 more source

Numerical abnormalities of permanent dentition - a case report

open access: yesMedicine and Pharmacy Reports, 2021
Tooth number abnormalities may occur under the influence of genetic or environmental factors which intervene in the tooth formation stages (induction and proliferation), most commonly the permanent dentition being affected. The result is the appearance of dental anomalies with numerical deficiency (hypodontia, anodontia), or with dental excess ...
Mioara Decusară   +3 more
openaire   +3 more sources

A cross-sectional study on the association between vitamin D levels and caries in the permanent dentition of Korean children

open access: yesBMC Oral Health, 2018
A recent study in Canada reported that vitamin D deficiency is associated with dental caries. Because Koreans have been reported to be deficient in vitamin D, we investigated the relationship between dental caries and reduced serum vitamin D levels in ...
In-Ja Kim   +4 more
semanticscholar   +1 more source

Distinctions and associations between the microbiota of saliva and supragingival plaque of permanent and deciduous teeth. [PDF]

open access: yesPLoS ONE, 2018
BACKGROUND:Using salivary microbiota as an accurate proxy for monitoring supragingival microbiota remains controversial because their relationship remains unclear.
Weihua Shi   +4 more
doaj   +1 more source

Ethnic differences in the root to crown ratios of the permanent dentition.

open access: yesOrthodontics & craniofacial research, 2019
OBJECTIVE Root resorption due to orthodontic tooth movement may adversely affect the root-crown (R/C) ratios of permanent teeth, especially in patients with Short Root Anomaly (SRA), a poorly understood disorder affecting root development.
Jue Wang   +6 more
semanticscholar   +1 more source

Evaluation of occlusal forces in different stages of children - An exploratory study

open access: yesSaudi Journal of Oral Sciences, 2018
Introduction: Bite force is one of the indicators of the functional state of mastication and loading of teeth. Bite force measurement is a reliable method of assessing the biomechanical properties of the masticatory system.
Priya Subramaniam   +2 more
doaj   +1 more source

The largest bilateral gemination of permanent maxillary central incisors: report of a case [PDF]

open access: yes, 2013
Gemination is defined as an attempt to make two teeth from one enamel organ. Bilateral presentation of this phenomenon is very rare, with prevalence of 0.01% to 0.04% in the primary, and 0.05% in the permanent dentition.
Baharvand, Maryam   +2 more
core   +1 more source

Evaluation and Comparison of Oral Health Status between Spanish and Immigrant Children Residing in Barcelona, Spain

open access: yesChildren, 2022
The present study aimed to evaluate and compare the level of oral health among Spanish and immigrant children residing in Barcelona, Spain. Oral health status was evaluated in 1400 children aged 3 to 14 years between September 2018 and June 2019 ...
Ana Veloso Duran   +3 more
doaj   +1 more source

Dental Anomalies in Permanent Teeth after Trauma in Primary Dentition.

open access: yesJournal of Clinical Pediatric Dentistry, 2017
OBJECTIVE This retrospective study aims to evaluate the prevalence of dental anomalies in permanent teeth as a result of a trauma concerning the predecessor primary teeth. STUDY DESIGN A total of 241 records of children (118 males and 123 females, mean
E. Bardellini   +3 more
semanticscholar   +1 more source

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