The prevalence of pulp stones in historical populations from the middle euphrates valley (Syria)

2013 ◽  
Vol 153 (1) ◽  
pp. 103-115 ◽  
Author(s):  
Jacek Tomczyk ◽  
Julian Komarnitki ◽  
Marta Zalewska ◽  
Ewa Wiśniewska ◽  
Kazimierz Szopiński ◽  
...  
Keyword(s):  
2016 ◽  
Vol 21 (7) ◽  
pp. 2327-2333 ◽  
Author(s):  
Emmanuel João Nogueira Leal da Silva ◽  
Marina C. Prado ◽  
Polyane M. Queiroz ◽  
Yuri Nejaim ◽  
Danieli M. Brasil ◽  
...  

Author(s):  
P.L. Luque ◽  
G.J. Pierce ◽  
J.A. Learmonth ◽  
M.B. Santos ◽  
E. Ieno ◽  
...  

We examined the tooth ultra-structure of harbour porpoises (Phocoena phocoena) from Scottish waters to determine whether the incidence of mineralization anomalies could be related to certain life history events (e.g. the achievement of sexual maturation) as well as other factors that affect the general health of the individual (e.g. persistent organic pollutant (POP) concentrations in blubber). Five distinct types of mineralization anomalies were recorded: accessory lines, marker lines, dentinal resorption, cemental disturbance and pulp stones and the occurrence of these anomalies was scored by sex, age and maturity state. Overall, the incidence of mineralization anomalies was high and tended to increase with age. Marker lines and accessory lines were the most commonly recorded anomalies while pulp stones were least frequent. Duplicate teeth (i.e. from the same individual) always showed the same pattern of anomaly occurrence.Fitted binary generalized linear and additive models indicated that the presence of dentinal resorption, cemental disturbance and marker lines in harbour porpoise teeth increased with age, body length and maturity. Males displayed marker lines more frequently than females. Age was the best predictor of the incidence of dentinal resorption and cemental disturbance while age and sex were the best predictors of the incidence of marker lines. The time course of appearance of dentinal resorption and cemental disturbance suggests that their occurrence could be related to physiological stress linked to sexual maturation. Marker lines were found within growth layer groups which coincided with the beginning of weaning and sexual maturation, suggesting an association with these two major life history events. Accessory lines were found in most teeth and may be a normal characteristic of porpoise teeth or reflect regular events. Pulp stones appeared only in mature animals. We found no evidence that the presence of anomalies in teeth was significantly related to POP concentrations in the blubber.


2021 ◽  
pp. 48-50
Author(s):  
Eva Shukla ◽  
Shruthi Nagaraja

Pulp stones are seen to be a fairly common nding in most routine radiographs but they have been given relatively less attention in research as well as textbooks. New investigations have been done in abundance when it comes to their prevalence as well as etiological factors. Despite numerous studies, their formation still remains a riddle for endodontists and researchers alike. Historical perspective of pulp stones being an age dependent process are now being questioned as more studies report their prevalence in young population. This review article evaluates the recent studies pertaining to pulpal calcications where newer etiological factors as well as molecular factors have been highlighted in their formation. Their signicance has been largely studied correlating their occurrence with various other systemic calcications.


1897 ◽  
Vol 29 (2) ◽  
pp. 205-226
Author(s):  
Robert Brown

Amongst the most remarkable instances of the result of careful observation and systematized thought which Western Asia has given to the world at large, are the Signs of the Zodiac, and the ancient extra-zodiacal constellation-figures, northern and southern; and by ‘ancient’ I mean those which have been enshrined for all future time in the Phainomena of Aratos. Of the Twelve Signs I shall only speak incidentally. It is now many years since Ideler and Guigniaut, contrary to the views of Letronne, arrived at the correct conclusion that the Signs of the Zodiac came, with so much else of archaic thought and civilization, from, the Euphrates Valley; and, having firmly established themselves in Hellenic usage, were afterwards carried by Greek conquerors as far as India in the east and Egypt in the south. But, although modern research has supplied an immense amount of material for the purpose, it is remarkable that the classic work of Ideler still gives the best account of the constellation-figures and their various stars. Surely, then, it is time that an effort was made to utilize in a connected form some at least of the results of subsequent investigation; and, although the inquiry, like all such, is progressive, and, like all researches into the ancient and archaic past, is beset with numerous difficulties, yet the principles to be applied and the general outlines of the subject are clear and distinct.


2018 ◽  
Vol 19 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Maryam Kuzekanani ◽  
Jahangir Haghani ◽  
Laurence J Walsh ◽  
Mohammad Estabragh

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Mohita Marwaha ◽  
Radhika Chopra ◽  
Payal Chaudhuri ◽  
Atul Gupta ◽  
Jayna Sachdev

Pulp stones are foci of calcification or discrete calcifications in the dental pulp. They are frequently found on bitewing and periapical radiographs, but their occurrence in entire dentition is unusual. We are reporting four cases in which the occurrence of pulp stones ranged from their presence in just primary teeth (Cases 1 and 2) to involvement of young permanent teeth also (Case 3) and even unerupted permanent teeth (Case 4). In all the cases, dental, medical, and family histories as well as the findings from the clinical examination of the patient were not contributory. Histopathological report revealed true denticle. Metabolic evaluation of patients through liver function test, kidney function test, and blood investigation did not show any metabolic disorders. Patients were also evaluated for any systemic, syndromic, or genetic involvement, but this was also noncontributing. Therefore, it is suggested that these unusual cases may be of idiopathic origin.


2021 ◽  
pp. 7-30
Author(s):  
Aelita Dolukhanyan

Nicholas Adonts (1871–1942) is one of the outstanding Armenian scholars who received an excellent education in Russia and Europe. During his studies at the University of St. Petersburg and later, when he improved his knowledge in well-known educational centers of Europe – in London, Paris, Vienna, Strasbourg and Munich, Adonts had the support of the great national benefactor Alexander Mantashiants. Eight volumes of Adonts’ works were published by Yerevan State University with the support of the Armenian branch of the Galust Gyulbenkian Foundation. Adonts left no autobiographical memories․ They would have been extremely interesting, since his life was really amazing. Tigran the Great (95–55 BC) was the most beloved historical figure of Adonts. He actually confirms that Tigran manifested himself as a world sovereign and enlightener, and his activities require new elucidation. Adonts presents the great deeds and military successes of the representatives of the princely house of Mamikonians in the Byzantine Empire. The study “The Fame of Bagratids” by Adonts is very interesting; it represents the branches of the Armenian royal house of Bagratids in Georgia, Caucasian Albania and Artsakh. In his extensive article “The Historical Basis and Ideological Value of the Novel David Bek”, the historian takes an exploratory approach while describing the historical events of the novel David Bek by Raffi. Especially rich is the heritage of the scientist in Byzantine studies, which has two branches of scientific and cognitive significance. Firstly, it presents important events of the history of Byzantium, and then the famous figures of this history, who were Armenians by nationality. In 1928 Adonts made a new discovery in Byzantine studies, exploring the “Historical basis of the Byzantine epic Digenis Acritas”. He proved that the epic poem was not Greek, since the homeland and place of activity of the main hero are the Euphrates valley, and his exploits take place in Western Armenia. Adonts was a devoted defendet of the Armenian Cause and dedicated many articles to this issue. Adonts left three monumental monographs as a legacy to science. These are: Armenia in the Era of Justinian (1908), Dionysius of Thrace and Armenian Commentators (1915) and the posthumously published Critical History of Armenia (1946). The scientific heritage of Adonts in the field of Byzantine studies and Armenology is rich with many scientific discoveries, whose value will be preserved forever.


Sign in / Sign up

Export Citation Format

Share Document