Results 41 to 50 of about 46,891 (316)

Evidence of strong stabilizing effects on the evolution of boreoeutherian (Mammalia) dental proportions. [PDF]

, 2019
The dentition is an extremely important organ in mammals with variation in timing and sequence of eruption, crown morphology, and tooth size enabling a range of behavioral, dietary, and functional adaptations across the class.
Archibald J. D., Archibald J. D., Bergqvist L. P., Butler P. M., Chaffee R. G., Clark J., Clemens W. A., Cuvier G., Evans A. R., Fortelius M., Gingerich P. D., Harmon L., Janis C. M., Janis C. M., Kay R. F., Kurtén B., Lucas P. W., Lucas P. W., Monson T. A., Nowak R. N., Orme D., Qiu Z. X., R Core Team, Revelle W., Tomiya S., Ungar P. S., Ungar P. S.   +26 more
core   +5 more sources

Insight into the Internal Structure of Biogenic, Synthetic and Geological Apatite by Electron Microscopy and X‐Ray Scattering

Advanced Functional Materials, EarlyView.
Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka, Oleg Prymak, Kateryna Loza, Matthias Epple   +3 more
wiley   +1 more source

A Deep Learning Approach to Automatic Tooth Caries Segmentation in Panoramic Radiographs of Children in Primary Dentition, Mixed Dentition, and Permanent Dentition

Children
Objectives: The purpose of this study was to evaluate the effectiveness of dental caries segmentation on the panoramic radiographs taken from children in primary dentition, mixed dentition, and permanent dentition with Artificial Intelligence (AI) models
Esra Asci, Munevver Kilic, Ozer Celik, Kenan Cantekin, Hasan Basri Bircan, İbrahim Sevki Bayrakdar, Kaan Orhan   +6 more
doaj   +1 more source

3D evaluation of maxillary morphology in Marfan growing subjects: a controlled clinical study

Progress in Orthodontics, 2019
Background Marfan syndrome is a rare autosomal dominant inherited disease of the connective tissue associated with various craniofacial abnormalities.
Giuseppina Laganà, Daniel Palmacci, Giovanni Ruvolo, Paola Cozza, Valeria Paoloni   +4 more
doaj   +1 more source

Evaluation of the esthetic properties of developmental defects of enamel: a spectrophotometric clinical study [PDF]

, 2015
Objectives. Detailed clinical quantification of optical properties of developmental defect of enamel is possible with spectropho- tometric evaluation. Developmental defects of enamel (DDE) are daily encountered in clinical practice. DDE are an alteration
Corridore, Denise, Debora, Pasqualotto, Guerra, Fabrizio, Mazur, Marta Danuta, Nardi, Gianna Maria, Ottolenghi, Livia   +5 more
core   +4 more sources

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

Advanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang, Yu Chen, Ezra Sarmiento, Taige Hao, Atsushi Arakaki, Michiko Nemoto, Pablo Zavattieri, David Kisailus   +7 more
wiley   +1 more source

Assessment of oral health status of Santal (Tribal) children of West Bengal

Journal of Indian Society of Pedodontics and Preventive Dentistry, 2015
Context: Santal is the third largest tribal community of India leading a very poor standard of education and life style. There are, however, few population-based studies evaluating the oral health status among Santal children in West Bengal.
Shyamapada Mandal, Chiranjit Ghosh, Subrata Sarkar, Jayita Pal, Sudipta Kar, Badruddin Ahmed Bazmi   +5 more
doaj   +1 more source

Supernumerary teeth at primary and permanent dentition

Brazilian Journal of Oral Sciences, 2006
Development disturbance originate in the odonthogenesis and begin around the 40TH week. It might occur on both dentitions, being scarcer in the primary one. Several hypotheses are mentioned for etiology of the supernumerary teeth and, among them, that one about hyperactivity of the Dental Blade, what would cause increment in the quantity of dental ...
Henrique Duque de Miranda, Neuza Maria de Souza, Picorelli Assis, Robert Willer Farinazo Vitral, Miranda Chaves, Breno Nogueira, Maria das Graças Afonso, Chaves Netto   +7 more
openaire   +3 more sources

Controlled Release of Human Dental Pulp Stem Cell‐Derived Exosomes from Hydrogels Attenuates Temporomandibular Joint Osteoarthritis

Advanced Healthcare Materials, EarlyView.
Exosomes can reduce tissue damage in temporomandibular joint osteoarthritis (TMJOA), but rapid clearance limits their efficacy. This study encapsulates exosomes in hyaluronic acid hydrogels for controlled release. In a rat model, hydrogel‐encapsulated exosomes outperform free exosomes in preserving bone integrity and reducing tissue destruction ...
Victor Diez‐Guardia, Yajing Tian, Yunzhe Guo, Jiaying Li, Shengjie Cui, Cécile A. Dreiss, Eileen Gentleman, Xuedong Wang   +7 more
wiley   +1 more source

Supernumerary Teeth in Primary Dentition and Early Intervention: A Series of Case Reports

Case Reports in Dentistry, 2012
Supernumerary teeth are considered as one of the most significant dental anomalies during the primary and early mixed dentition stages. They are of great concern to the dentists and parents because of the eruption, occlusal, and esthetic problems they ...
Rakesh N. Bahadure, Nilima Thosar, Eesha S. Jain, Vidhi Kharabe, Rahul Gaikwad   +4 more
doaj   +1 more source