Hominoid enamel prism patterns

Science ◽  
1977 ◽  
Vol 198 (4322) ◽  
pp. 1155-1157 ◽  
Author(s):  
D. Gantt ◽  
D Pilbeam ◽  
G. Steward
Keyword(s):  
Enamel Prism

Some observations on enamel thickness and enamel prism packing in the miocene hominoidOtavipithecus namibiensis

1995 ◽  
Vol 98 (4) ◽  
pp. 595-600 ◽  
Author(s):  
Glenn C. Conroy ◽  
Jeff W. Lichtman ◽  
Lawrence B. Martin
Keyword(s):  
Enamel Thickness ◽  
Enamel Prism

Effect of silk sericin on assembly of hydroxyapatite nanocrystals into enamel prism-like structure

2009 ◽  
Vol 19 (32) ◽  
pp. 5751 ◽  
Author(s):  
Yurong Cai ◽  
Jun Jin ◽  
Danping Mei ◽  
Nianxin Xia ◽  
Juming Yao
Keyword(s):  
Silk Sericin ◽  
Hydroxyapatite Nanocrystals ◽  
Enamel Prism

Correlative microscopy of enamel prism orientation

1975 ◽  
Vol 144 (4) ◽  
pp. 407-419 ◽  
Author(s):  
Dennis F. Weber ◽  
Paul L. Glick
Keyword(s):  
Correlative Microscopy ◽  
Enamel Prism

Australopithecine enamel prism patterns

Science ◽  
1978 ◽  
Vol 202 (4370) ◽  
pp. 890-892 ◽  
Author(s):  
E. Vrba ◽  
F. Grine
Keyword(s):  
Enamel Prism

Elastic modulus of dental enamel: effect of enamel prism orientation and mineral content

2004 ◽  
Vol 841 ◽  
Author(s):  
V. L. Ferguson ◽  
Alan Boyde ◽  
Andrew J. Bushby
Keyword(s):  
Elastic Modulus ◽  
Mineral Content ◽  
Developmental Stages ◽  
Tooth Enamel ◽  
Dental Enamel ◽  
Tissue Level ◽  
Ultrastructural Organization ◽  
Tissue Organization ◽  
Mandibular Molar ◽  
Enamel Prism

ABSTRACTNanomechanical properties of mineralized tissues are determined by microstructural tissue organization and relative composition of organic, mineral, and water phases. We combine nanoindentation and quantitative backscattered electron (qBSE) imaging to understand how these factors influence material properties at the ultrastructural and tissue level. Developmental stages of equine tooth enamel provide a good situation for studying the effects of enamel prism orientation and mineralization. Equine cheek teeth continue to form new enamel whilst mature tissue is being worn away. Hence we can study graded mineral content that increases with enamel maturity. Hunter-Schreger bands (HSBs) containing enamel prisms of contrasting orientations allow investigation of the effect of orientation on modulus. An equine second mandibular molar (2-year-old) was embedded in poly-methylmethacrylate, sectioned longitudinally, polished, carbon coated, imaged in qBSE, and subjected to nanoindentation testing. Elastic modulus increases significantly during maturation as enamel protein matrix degradation makes space for increased mineral content with closer proximity of enamel crystals, finally reaching values exceeding 80 GPa for little further increase in mineral content. Indentations spanning HSBs in immature, poorly mineralized enamel yielded modulus values that varied with prism orientation in a sinusoidal pattern where modulus varies by as much as a factor of three. Nanoindentation helps to elucidate how the composition and ultrastructural organization of enamel contribute to mechanical properties.

scholarly journals Intercusp differences in enamel prism patterns in early and late stages of human tooth development

2000 ◽  
Vol 45 (12) ◽  
pp. 1091-1099 ◽  
Author(s):  
Tania Zeygerson ◽  
Patricia Smith ◽  
Rebeca Haydenblit
Keyword(s):  
Tooth Development ◽  
Human Tooth ◽  
Late Stages ◽  
Enamel Prism
Sign in / Sign up

Export Citation Format

Share Document