(n.) The dense calcified substance of which teeth are largely composed. It contains less animal matter than bone, and in the teeth of man is situated beneath the enamel.
Example Sentences:
(1) A total of 555 caries lesions were registered on proximal surfaces, 49.1% being primary lesions in the enamel, 21.4% primary lesions into the dentin and 29.5% secondary lesions.
(2) Enamel was exclusively present opposite well developed dentine.
(3) Two hundred and forty root canals of extracted single-rooted teeth were prepared to the same dimension, and Dentatus posts of equal size were cemented without screwing them into the dentine.
(4) There was a greater chance for the regeneration of a connective tissue attachment in nongrafted intrabony defects than in grafted defects; new cellular cementum formed equally well on old cementum, dentin, or both old cementum and dentin in the same defect.
(5) Four distinct forms of dentin dysplasia type I and one form of dentin dysplasia type II are identified.
(6) This short paper includes extracts from the original translations of Leeuwenhoek's descriptions of the histology of teeth, investigates his findings and demonstrates that in addition to describing dentinal tubules, he may have identified the presence of calcospherites within that tissue.
(7) Three brands of glass ionomer were applied to prepared dentin surfaces of extracted human molars, after one of four treatments with polyacrylic acid.
(8) Earlier-generation dentin bonding systems did not yield high bond strengths in the laboratory or prevent marginal microleakage.
(9) On the fourth day of culture, the pre-ameloblasts achieved terminal differentiation into secretory ameloblasts, and enamel and dentin had already been deposited.
(10) Some of the newer dentin bonding systems include Gluma Bond and Scotchbond 2.
(11) Small amounts of non-collagenous proteins and glycosaminoglycans of different compositions in dentin and bone resisted extraction before pepsin digestion.
(12) This study evaluated the bond strength between glass ionomer cements and laser-etched dentin.
(13) It is possible that the close association of PG filaments with matrix vesicles and collagen indicates that PGs are related to the process of mineralisation of dentine.
(14) It is associated with bony fragility, blue sclerae and abnormality of tooth dentin.
(15) In 6 participants dentine was positioned in a full prosthesis just under M2 in such a way that the outer surface of the tissue was 1.5 mm lower than the surface of the prosthesis; plaque accumulation takes place in the recessed area.
(16) The authors suggest that while differences in root length may be useful in determining treatment options, thinking of these variables as separate types of dentin dysplasia is not warranted at this time.
(17) Annexins I and II were seen in the soluble and particulate fractions of the enamel-related portion but not in the dentin-related portion.
(18) Tangential semithin sections of demineralized tooth germ were serially cut from the enamel surface to the enamel-dentin junction.
(19) Thirty percent H2O2 and 2% sodium perborate in 30% H2O2 treatments significantly increased the solubility of dentin and cementum.
(20) Most bonding systems use acidic conditioners designed to remove the smear layer and demineralize the dentin surface.
Elephant
Definition:
(n.) A mammal of the order Proboscidia, of which two living species, Elephas Indicus and E. Africanus, and several fossil species, are known. They have a proboscis or trunk, and two large ivory tusks proceeding from the extremity of the upper jaw, and curving upwards. The molar teeth are large and have transverse folds. Elephants are the largest land animals now existing.
(n.) Ivory; the tusk of the elephant.
Example Sentences:
(1) The hymen was not penetrated as a result of intromission and therefore the site of ejaculation would have been in the urogenital canal of the 4 primigravid elephants.
(2) In June, a notorious elephant poacher led a gang of bandits in an attack on the Okapi wildlife reserve in DRC, killing seven people.
(3) Spending time with the baby elephants was very special; the best bit was watching them have a mud bath and occasionally joining in!
(4) Some of these are functions that would once have been taken on through squatting – and sometimes still are, as at Open House , a social centre recently and precariously opened in London's Elephant & Castle, an area torn apart by rampant gentrification, where estates are flogged off to developers with zero commitment to public housing and the aforementioned "shopping village" is located in a derelict estate.
(5) In December he smashed apart the Roman forces in the north, assisted by his awesome elephants, the tanks of classical warfare.
(6) Yang Feng Glan is accused of smuggling 706 elephant tusks worth £1.62m from Tanzania to the far east.
(7) Prince William is due to make a speech about conservation at an elephant sanctuary in China on 4 March.
(8) We haven’t ascertained how much of the forests it has taken over, but a significant portion may in reality be unpalatable weeds and effectively unusable from an elephant’s perspective.
(9) We’ve sent one of our writers to Kenya to meet the elephants, and some of the people who seek to look after them, just as news breaks that elephant numbers are dramatically down.
(10) It’s home to a quarter of a million people, about 150 elephants and a host of other wild animals ranging from bears and tigers to flycatchers and martens.
(11) Kenya's president has set fire to more than five tonnes of elephant ivory worth £10m to draw attention to poaching deaths.
(12) On the other hand the government and the police have got a duty to ensure that people in the Department of Defence are not breaching national security by giving stuff to you.” The Greens senator Scott Ludlam, who provided his own circumvention tips during the Senate debate on Tuesday, said Turnbull’s explanation indicated data retention could be a “$300m white elephant”.
(13) Through the year, a herd of elephants may move over a very large area in search of food and water – sometimes more than 1,000 square kilometres.
(14) At 5pm each night, local TV stations broadcast the locations of all elephants on the plateau.
(15) Sudanese poachers were responsible for the recent mass slaughter of 26 elephants at world heritage Dzanga-Ndoki national park in the CAR.
(16) We have a few quotations from a compendium of jokes of the first emperor Augustus (not all brilliant: "When a man was nervously giving him a petition and kept putting his hand out, then drawing it back, the emperor quipped, 'Hey, do you think you're giving a penny to an elephant?'").
(17) … the party wants to run a highly disciplined election campaign – there can be no place for a rogue elephant."
(18) In January, poachers shot down a helicopter in Tanzania and killed its British pilot during an operation to track down elephant killers while, in October last year, 14 elephants were poisoned by cyanide in Zimbabwe .
(19) It would be kind of a big elephant to have missed."
(20) A realistic elephant might serve as a memento to the hundred elephants killed for their ivory every day.