Teeth grow

0 14 September 2016

In this video you can see how a teeth grow in your jaw through the time. Very useful.  

0 23 October 2014

Autogenous bone block grafts, bone grafting material or a combination of both can be used to restore an implant site of adequate dimensions in an atrophied maxilla. If the vertical height of the bone is inadequate in the posterior region, a sinus floor lift is often indicated to stabilise the implants safely. In the case presented here, surgical treatment based on Prof. Fouad Khoury’s [1, 2] biological concept for bone grafting using a combination of autogenous bone block grafts and particulate bone chips is described. The case report also describes the layering technique as part of a sinus floor lift in conjunction with bone grafting material. The objective of the treatment is a restoration with longterm stability and a good aesthetic result. An im plant-supported bar-latch design based on Dr Friedrich-Wilhelm Pape’s prosthetic concept (Schellenstein concept) was used.[3] Initial situation The 60-year-old patient was referred to the practice with a telescopic restoration on natural abutment teeth 11, 21, 22 and 23. Crown and bridge restorations were used in the mandible; however, teeth 21 and 22 could not be preserved and were extracted. Abutment teeth 11 and 23 could not be preserved, but served as abutments for the temporary restoration until fabrication of the final prosthetic restoration. In the premolar region specifically, pronounced horizontal and vertical bone defe

0 23 October 2014

BALTIMORE, USA: A recently published study has shown that infection with the oral human papillomavirus Type 16 (HPV 16), which is also thought to cause oropharyngeal cancer, is more common among people who have recently used or been exposed to tobacco. The researchers found that even modest tobacco use, like three cigarettes per day, is associated with higher oral HPV prevalence. The study included 6,887 participants, who were originally enrolled in the National Health and Nutrition Examination Survey, a program of studies designed to assess the health and nutritional status of adults and children in the U.S. Current tobacco users accounted for 28.6 percent (2,012) of the study population and 1 percent (63) were infected with HPV 16. Examination of blood and urine, as well as oral rinsing and gargling to collect mouth and throat cells, found that participants with higher levels of tobacco-related biomarkers in their blood and urine, which can come from any tobacco source—even secondhand smoke—were more likely to have oral HPV 16 DNA compared with those who had no detectable levels of the compounds, explained Dr. Carole Fakhry, an assistant professor of otolaryngology–head and neck surgery at the Johns Hopkins University School of Medicine, where the study was conducted. According to the study, oral HPV 16 prevalence was greater in current tobacco users (2.0 percent) than

0 23 October 2014

BIRMINGHAM, Ala., USA: New research from the U.S. provides evidence that Porphyromonas gingivalis, the main agent of the chronic inflammatory disease periodontitis, also manipulates the human immune system. In a number of laboratory tests, scientists observed that the pathogen inhibits the body’s defense processes that would normally destroy it. In order to determine the manner in which P. gingivalis influences the immune system, the researchers treated cells from mice with an inhibiting antibody against Interleukin-10 (IL-10), an anti-inflammatory protein, while leaving a different portion of the same cells untreated. Afterwards, they tested whether the cells produced interferon-gamma (IFN-γ), a protein that has an immunostimulatory and antiviral effect. According to the study, P. gingivalis stimulated the production of IL-10, which in turn inhibited the activity of T-cells and macrophages, and repressed the immune response. The researchers observed increased production of IFN-γ in the treated cells, while no such growth was seen in the untreated cells. The study highlighted the mechanism by which the pathogen establishes a chronic infection. “These bacteria go beyond merely evading our body’s defense and actually manipulate our immune system for their own survival,” the researchers said. The findings suggested that the damage done by the bacterium occurs when the immune cel

0 23 October 2014

COLUMBUS, Ohio, USA: Microbiologists have suggested that bacteria present in the oral cavity are a reliable indicator of a person’s ethnicity. In a study of participants from four different ethnic groups, they found that each group had an individual set of oral microbes. They believe that these microbes might also predispose individuals to certain oral diseases. The study included 192 healthy individuals aged 18 and over who consisted of non-Hispanic blacks, non-Hispanic whites, Chinese people and Latinos. Researchers at the Ohio State University compared the oral microbial communities they obtained from bacterial samples from the participants’ saliva, tooth surfaces and gums after sequencing their DNA. Using a special machine, they were able to predict an individual’s ethnicity with 62 percent accuracy based on a given bacterial community. African-Americans were correctly identified according to their microbial signature 100 percent of the time. Latinos were identified with 67 percent accuracy and Caucasians with 50 percent. The classifying machine performed best when subgingival microbes were used. This was attributed to the fact that these bacteria are the least likely to be disrupted by environmental changes in the mouth, such as food, toothpaste and tobacco. Overall, they found 398 species, with an average of about 150 species per person. Only 2 percent were present in all

0 23 October 2014

AUSTIN, Texas, USA: Studies on the human microbiome have shown that shifts in oral microbiota are associated with a number of diseases, including obesity, Crohn’s disease, diabetes and periodontitis. Now, U.S. scientists have found that oral bacteria act differently in diseased patients compared with healthy individuals. They believe that the findings could be used to develop methods to prevent or even reverse diseases such as periodontal disease. Although it is known that the composition of the microbiome changes during the transition from health to disease, it is still unclear how specific activities of different members of the microbial community affect diseases. In order to understand how different bacteria act in healthy and diseased individuals, researchers at the University of Texas at Austin examined periodontal plaque samples from ten patients from Izmir in Turkey with aggressive periodontitis. Using supercomputers, the researchers compared the expression of 160,000 genes in healthy and diseased periodontal communities and found that these communities show defined differences in metabolism. “In other words, a species of bacteria that ate one thing, such as fructose, can switch to a different kind of sugar to feed on if diseased,” explained Dr. Marvin Whiteley, professor of molecular biosciences at the university. A major question concerning the mechanism underlying the

0 23 October 2014

TOKYO, Japan: The results of a recently published study have shown that ozone nano-bubble water (NBW3) is very effective against two bacteria that cause periodontitis. The researchers believe that this new antimicrobial agent could be used in the development of new therapies for the inflammatory disease, which affects 15 to 20 per cent of middle-aged adults in its severest form worldwide. In in vitro experiments, researchers at Tokyo Medical and Dental University and the National Institute of Advanced Industrial Science and Technology in Japan tested the effectiveness of NBW3 against Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans. They found that the levels of both bacteria dropped to below the lower limit of detection after only 30 seconds of exposure. In addition, they observed that NBW3 had no significant impact on human oral tissue. Using an in vitro human oral tissue model, composed of human-derived epithelial cells, they found only minor decreases in the viability of cells after 24 hours of exposure. Such models are used to test the toxicity and irritation potential of new dental materials and oral care products. According to the researchers, they are more predictive of human responses and more clinically relevant than are animal and monolayer cell culture test systems. Conventional antibiotic therapies for treating periodontitis hold the risk of sever

0 20 October 2014

Dental implant surgical placement means placement of foreign bodies in the oral region, in order to provide better and more successful prosthetic rehabilitation. To date, the implants used extensively as a variety of materials with more or less success, since it is the body sooner or later rejected. How does dental implant looks like? Based on current knowledge, it can be said that metals such as stainless steel, chromium-cobalt-molybdenum alloys, precious metals and many polymers, bone tissue can be tolerated but not integrated. However, titanium, tantalum, niobium and others, like aluminum oxide ceramics, which are described as almost bioinert may be osteointegrated under certain conditions. Our clinic Eurodent in Belgrade, Serbia, guarantee the safe and secure implant surgery, will provide you a more beautiful smile and allow you to save money, because of our affordable services at low cost implants. You can see it on presented picture how does it looks like:  

adding crown to dental implant adding crown to dental implant
Implants that are widely used can be metallic or non-m