The Rate of Resorption of Different Regions of Residual Ridges in Complete Denture Wearers Dependent on the Region and the Period Following the Last Extraction. One Year Study.

Residual alveolar ridges (RR) show continual resorption after the loss of the natural dentition, resulting in reduction of the morphologic face height and counterclockwise rotation of the mandible, regardless of whether the dentures are worn or not. The aim of this study was to analyse residual ridge resorption (RRR) in 5 different regions of both jaws on the successive lateral cephalograms of 50 complete denture wearers and to correlate such changes with the number of years of edentia and the region where the last extraction was performed. The height of the residual ridges was measured on 5 different sites of the mandible and the maxillary RR using a calibrated grid. The results revealed that all the patients showed significant RRR in the one year period (p<0.01), which was 2.5x more in the mandible than in the maxilla. RRR was bigger in patients who had had their last extraction within a period of one year before receiving their dentures, than in patients who had extracted their teeth earlier (p<0.01). However, the rate of RRR was significantly higher (p<0.01) in the anterior regions of both jaws compared to distal regions (0.41 and 0.42 mm in the incisive/canine region: 0.2 and 0.17 mm in the premolar/ molar region for the maxilla 1.05 and 0.82 mm in the incisive/canine region : 0.27 and 0.11 in the premolar/ molar region for the mandible), even in patients where the last extraction was performed in the premolar region. It seems that the structure of the bone and strains in RR, due to loading from the dentures, may play a role, not only the period following extraction and the region of the last extraction

The Rate of Resorption of Different Regions of Residual Ridges in Complete Denture Wearers Dependent on the Region and the Period Following the Last Extraction. One Year Study.

Residual alveolar ridges (RR) show continual resorption after the loss of the natural dentition, resulting in reduction of the morphologic face height and counterclockwise rotation of the mandible, regardless of whether the dentures are worn or not. The aim of this study was to analyse residual ridge resorption (RRR) in 5 different regions of both jaws on the successive lateral cephalograms of 50 complete denture wearers and to correlate such changes with the number of years of edentia and the region where the last extraction was performed. The height of the residual ridges was measured on 5 different sites of the mandible and the maxillary RR using a calibrated grid. The results revealed that all the patients showed significant RRR in the one year period (p<0.01), which was 2.5x more in the mandible than in the maxilla. RRR was bigger in patients who had had their last extraction within a period of one year before receiving their dentures, than in patients who had extracted their teeth earlier (p<0.01). However, the rate of RRR was significantly higher (p<0.01) in the anterior regions of both jaws compared to distal regions (0.41 and 0.42 mm in the incisive/canine region: 0.2 and 0.17 mm in the premolar/ molar region for the maxilla 1.05 and 0.82 mm in the incisive/canine region : 0.27 and 0.11 in the premolar/ molar region for the mandible), even in patients where the last extraction was performed in the premolar region. It seems that the structure of the bone and strains in RR, due to loading from the dentures, may play a role, not only the period following extraction and the region of the last extraction

Influence of Different Factors on the Rate of Residual Ridge Resorption in Complete Denture Wearers

Gubitak bezubog alveolarnoga grebena (RRR) stalan je proces koji dovodi do smanjenja visine lica i rotacije čeljusti u smjeru obrnutom od kretanja kazaljke na satu. Smatra se da lokalni i sustavski čimbenici utječu na RRR. Svrha rada bila je analizirati iznos RRR na 5 različitih mjesta gornje i donje čeljusti na lateralnim telerengenogramima u razdoblju od godine dana. Mjeren je iznos resorpcije rezidualnih alveolarnih grebena na 5 različitih mjesta obiju čeljusti na postraničnim telerendgenogramima kod 50 nositelja potpunih proteza u razdoblju od jedne godine, a također je analiziran i doprinos nekih čimbenika na iznos resorpcije. Visina bezubih grebena mjerena je na 5 mjesta bezubih grebena gornje i donje čeljusti prigodom predaje proteza i nakon razdoblja od jedne godine uz uporabu kalibrirane mrežice. Hijerarhijska regresijska raščlamba napravljena je kako bi se ustanovio udio pojedinih čimbenika na iznos resorpcije. Hijerarhijska regresijska raščlamba čimbenika kao što su indeks mase tijela,spol, dob, vrijeme bezubosti, broj prijašnjih proteza, nošenje proteza danju i / ili danju i noću, vrijeme proteklo od menopauze u žena, površina ležišta proteza i mjesto posljednje ekstrakcije pokazala je da jedini važni čimbenici koji pridonose RRR u jesu razdoblje bezubosti i broj prijašnjih proteza (p < 0,05). Vrijeme bezubosti i broj prijašnjih proteza (p < 0,05) znatno su pridonijeli iznosu resorpcije rezidualnih alveolarnih grebena u razdblju od godine dana.Alveolar bone loss (RRR) is a continous process leading to a reduction of the morphological face height and counterclockwise rotation of the mandible. It has been speculated that both systemic and local factors contribute to RRR. The aim of this study was to analyse the rate of RRR in five different regions of both jaws on lateral cephalograms. The rate of RRR was analysed in five different regions of both jaws in lateral cephalograms of 50 complete denture wearers during a one year period and the contribution of some factors to the rate of RRR was also analysed. The height of residual ridges was measured on 5 different sites at the delivery of the dentures and a year later using a calibrated grid. Hierarchic regression analysis was made to reveal the contribution of different factors to RRR. Hierarchic regression analysis was made (the factors included were: body, mass index, gender, age, time of edentulousness, number of previous dentures, night-time denture wearing, period od postmenopause in women, surface of denture bearing area and place of last extraction) and revealed that the only statistically significant factors contributing to RRR was the period od edentolousness and number of previous dentures (p < 0.05). The period of edentulousness and number of previous dentures (p < 0.05) contributed significantly to the rate of RRR

Smrtna otrovanja u gradu Zagrebu

The paper deals with the results of analysis of fatal poisonings in the city of Zagreb from 1981 to 1990. The work is an extension of earlier analyses for the same area that were carried out from the foundation of the Department for Forensic Medicine and Criminology, School of Medicine, University of Zagreb in 1934 to 1967, and from 1968 to 1980. Comparative analysis of all data shows that despite the increasing rate of poisoning the number of cases of fatal poisoning has been steadily diminishing - from 11 cases per 100.000 population in the 1934-1967 period and eight cases between 1968 and 1980 to five cases in the latest period 1981-1990.Analizirani su smrtni slučajevi otrovanja na području grada Zagreba za razdoblje od 1981, do 1990. godine. Analiza je nastavak ranijih proučavanja smrtnih otrovanja na području grada, od osnutka Zavoda za sudsku medicinu i kriminalistiku Medicinskog fakulteta Sveučilišta u Zagrebu 1934. godine do 1967. godine, te od 1968. do 1980. godine. Unatoč sve većem broju otrovanja analiza između ostaloga pokazuje stalni pad broja smrtno otrovanih, od 11 osoba na 100,000 stanovnika grada između 1934. i 1967. godine, na osam smrtno otrovanih u vremenu između 1968. i 1980. godine, na pet stanovnika na 100.000 stanovnika grada Zagreba u vremenu od 1981, do 1990, godine

A review of tertiary BIM education for advanced engineering communication with visualization

SPECT with Tc-99m-labeled agents is better able to detect viability after nitrate administration. Nitrates induce vasoclilation and may increase blood flow to severely hypoperfused but viable myocardium, thereby enhancing tracer delivery and improving the detection of viability. Quantitative data on the changes in blood flow are lacking in SPECT but can be provided by PET. The aim of the present study was to use PET to evaluate whether nitrate administration increases blood flow to chronically dysfunctional but viable myocardium. Methods: N-13-Ammonia PET was used to quantitatively assess blood flow, and F-18-FDG PET was used as the gold standard to detect viable myocardium. Twenty-five patients with chronic ischemic left ventricular dysfunction underwent N-13-ammonia PET at rest and after nitrate administration. Results: A significant increase in nitrate-enhanced blood flow was observed in viable segments (from 0.55 +/- 0.15 to 0.68 +/- 0.24 mL/min/g, P <0.05). No statistically significant change in blood flow was observed in nonviable segments (0.60 +/- 0.20 vs. 0.55 +/- 0.18 mL/min/g). A ratio of at least 1.1 for nitrate-enhanced flow to resting flow allowed optimal detection of viable myocardium, yielding a sensitivity of 82% with a specificity of 100%. Conclusion: N-13-Ammonia PET showed a significant increase in nitrate-enhanced blood flow in viable myocardium, whereas blood flow remained unchanged after nitrate administration in nonviable myocardium. Nitrate use during myocardial perfusion imaging will lead to improved assessment of myocardial viability

Scripta in honorem Igor Fisković: zbornik povodom sedamdesetog rođendana

The International Research Centre for Late Antiquity and the Middle Ages prepared a Festschrift in honour of one of its founders, Igor Fisković on the occassion of his 70th birthday. The Festschrift&nbsp; includes works addressing the periods that Igor Fisković has dealt with most, thus reflecting the diversity of his interests, ranging from Late Antiquity to contemporary art, with key emphasis on the Late Middle Ages and early modernity. Due to the diversity and the broad period of time the texts are covering, they have been arranged more or less chronologically. The works focus mainly on the Late Middle Ages and the early modern period, Fisković’s forte and the topic of some of his best writings. There are also several texts addressing the baroque period, which was not one of the honouree’s interests, but they were written by some of his closest friends and members of the generation of his former students who have had prestigious careers. (from the Foreword)Zbornik je pripredio Međunarodni istraživački centar za kasnu antiku i srednji vijek povodom sedamdesetog rođendana jednog od svojih osnivača Igora Fiskovića. Zbornik obuhvaća radove koje pokrivaju razdoblja kojima se Igor Fisković ponajviše bavio, reflektirajući raznolikost njegovih interesa, od početne kasne antike i suvremene umjetnosti, do ključnoga naglaska na kasnom srednjem vijeku i početku modernog doba. Zbog te raznolikosti i širokog vremenskog razdoblja koje pokrivaju, radovi su poredani manje-više kronološki. Ističe se brojem radova upravo kasnosrednjovjekovno doba i početci modernoga, forte u kojem je Igor Fisković dao svoje ponajbolje radove. Uz njih je i više priloga koji pokrivaju razdoblje baroka, kojim se slavljenik nije bavio, no koji su iz pera njegovih najbliskijih prijatelja i one generacije njegovih bivših studenata koji su danas ostvarili ugledne karijere. (iz Predgovora

Scripta in honorem Igor Fisković: zbornik povodom sedamdesetog rođendana

The International Research Centre for Late Antiquity and the Middle Ages prepared a Festschrift in honour of one of its founders, Igor Fisković on the occassion of his 70th birthday. The Festschrift&nbsp; includes works addressing the periods that Igor Fisković has dealt with most, thus reflecting the diversity of his interests, ranging from Late Antiquity to contemporary art, with key emphasis on the Late Middle Ages and early modernity. Due to the diversity and the broad period of time the texts are covering, they have been arranged more or less chronologically. The works focus mainly on the Late Middle Ages and the early modern period, Fisković’s forte and the topic of some of his best writings. There are also several texts addressing the baroque period, which was not one of the honouree’s interests, but they were written by some of his closest friends and members of the generation of his former students who have had prestigious careers. (from the Foreword)Zbornik je pripredio Međunarodni istraživački centar za kasnu antiku i srednji vijek povodom sedamdesetog rođendana jednog od svojih osnivača Igora Fiskovića. Zbornik obuhvaća radove koje pokrivaju razdoblja kojima se Igor Fisković ponajviše bavio, reflektirajući raznolikost njegovih interesa, od početne kasne antike i suvremene umjetnosti, do ključnoga naglaska na kasnom srednjem vijeku i početku modernog doba. Zbog te raznolikosti i širokog vremenskog razdoblja koje pokrivaju, radovi su poredani manje-više kronološki. Ističe se brojem radova upravo kasnosrednjovjekovno doba i početci modernoga, forte u kojem je Igor Fisković dao svoje ponajbolje radove. Uz njih je i više priloga koji pokrivaju razdoblje baroka, kojim se slavljenik nije bavio, no koji su iz pera njegovih najbliskijih prijatelja i one generacije njegovih bivših studenata koji su danas ostvarili ugledne karijere. (iz Predgovora