Results 61 to 70 of about 197,417 (362)

Hybodont sharks of the English Bathonian and Callovian (Middle Jurassic). [PDF]

open access: yes, 2008
Recent bulk sampling and study of museum collections has revealed a high diversity of hybodont sharks from the English Bathonian, with 15 species being recognised.
AGASSIZ   +76 more
core   +1 more source

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

open access: yesAdvanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert   +14 more
wiley   +1 more source

Distribution of crown fracture in anterior teeth of the children with cerebral palsy

open access: yesPadjadjaran Journal of Dentistry, 2010
Introduction: Crown fracture is a fracture involving enamel only or enamel and dentin with or without pulp exposure. Crown fracture in children may disrupt the speaking and masticating function, aesthetics, and permanent tooth eruption.The condition of ...
Liariza Sativa   +2 more
doaj   +1 more source

Stability of vertical dimension following total arch intrusion

open access: yesBMC Oral Health, 2023
Background The purpose of this study is to evaluate stability of vertical dimension following total arch intrusion using miniscrews by measuring the change during treatment and relapse amount after more than one year of retention. Methods Thirty patients
Dong-Ok Kang   +5 more
doaj   +1 more source

Anterior Hyperfunction by Mandibular Anterior Teeth: A Narrative Review

open access: yesHealthcare, 2023
“Combination syndrome”, defined by Kelly in 1972, is a challenging condition observed in a patient with an edentulous maxilla and a partially edentulous mandible with only mandibular anterior teeth. “Anterior hyperfunction syndrome” is regarded as a synonym of combination syndrome and was first described in 1994.
Yoichiro Ogino, Yasunori Ayukawa
openaire   +2 more sources

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

open access: yesAdvanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo   +10 more
wiley   +1 more source

Esthetic rehabilitation for premature loss of primary anterior teeth

open access: yesSRM Journal of Research in Dental Sciences, 2019
Over years primary anterior teeth have been prematurely lost due to Early Childhood Caries and trauma. While in the past once lost primary teeth could not be replaced, now due to increased aesthetic demands of the patient and their family, different ...
Paridhee Jalan   +3 more
doaj   +1 more source

Moving an incisor across the midline: A treatment alternative in an adolescent patient [PDF]

open access: yes, 2011
A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. Extraction of both teeth became necessary.
Bosio, Jose A   +2 more
core   +1 more source

Barremian and Aptian (Cretaceous) sharks and rays from Speeton, Yorkshire, north-east England [PDF]

open access: yes, 2004
Bulk sampling of a number of horizons within the upper part of the Speeton Clay Type section has produced teeth and other remains of sharks and rays from several poorly studied horizons.
Applegate   +34 more
core   +1 more source

Metronidazole‐Loaded Cyclodextrin Nanogels for Antibacterial Therapy and Microbiota Regulation in Periodontitis

open access: yesAdvanced Healthcare Materials, EarlyView.
A methacrylamide β‐cyclodextrin‐based nanogel (MACD nGel) is developed to load the antimicrobial drug Metronidazole (MNZ) for topical delivery for the treatment of periodontitis. It is demonstrated that cyclodextrin nanogel (nGel) loaded with metronidazole provides an efficient drug delivery route but also has potential clinical applications and offers
Yanjing Ji   +8 more
wiley   +1 more source

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