The possible effects of splinting natural teeth to dental implant Essay

The possible effects of splinting natural teeth to dental implant restorations - Essay Example Modern dental implants help these dentally challenged people who have lost their teeth in some unfortunate way. Dental implants are so realistic that they are virtually identical to real teeth in form, sense and purpose. Dental implants allow these persons to eat normally again and are rest assured that their facial structures are back in line. The implants are actually miniature titanium posts, planted in the gaps where a tooth or a set of teeth should be. Once these are in place, these posts act as anchors and as tooth root replacements. The jawbone then bonds with the titanium, providing a base for the new tooth ("What are Dental Implants"). According to surveys, there are a lot of Americans suffering from oral deficiencies (Meskin & Brown; Harvey & Kelly). Implants are seen as appropriate alternatives to other oral correction aids, with about 300,000 to 428,000 implants performed each year (Seckinger et al). Osseo integration (Branemark) or functional ankylosis (Schroeder et al) are the formal terms for bone anchorage attributing to the sound success of dental implants. Osseointegration works at the microscopic level and it involves the bond between the bone and implant (Branemark). There are no unstable soft tissue connection between the bone and implant, and this implant bonds at an amazing level of efficiency. Electron microscope photographs show that the bone and implant are only about 20 nanometres apart (Listgarten et al). On metal implant surfaces, the oxidation reaction between titanium forms an oxide layer (3 to 5A) on the surface of the implant (Albrektsson). This oxide layer is highly desirable as it has a c eramic -like feel to it and is resistant to water and most forms of corrosion and is entirely organically attuned (Hansson et al; "Dental Implants in Periodontal Therapy"). History shows that implants were performed ever since people learned how to replace teeth in some way. The ancient Mayans have performed dental implants as evidenced in their obsidian carvings. In the recent eras, gold and other precious metals , ceramics , rubber, stainless steel were used at some point and has proved to be effective ("Implant history"). In 1952, Per-Ing-var Branemark, based in Sweden made a breakthrough discovery resulting in dental implants using various techniques and tools in dental technology. It turns that the metal titanium can bond with organic material well and when placed surgically in a jawbone, it facilitates anchorage and also the full recovery of gums. Thus the term "Osseo integration" was born ("Implant history"). Osseo integration was actually discovered accidentally by Dr. Brnemark. Dr. Brnemark observed that titanium can combine with bone tissue, a fact that is in contrast with modern scientific facts. He showed that under certain conditions, titanium can be incorporated into living tissue with much success and with out the hassles of tissue swelling or tissue rejection Dr. Brnemark as the discoverer of this occurrence' was also the one who first coined the term "Osseo integration" ("History of dental implants"). 1965 saw the birth of the new screw-shaped implants, but these types of implants wer subsequently improved until 1985. after this time that dentists were confident of this process and it has been used ever since. Throughout those 20

You can decide Essay Example | Topics and Well Written Essays - 1000 words

You can decide - Essay Example Smith Woodward is the Keeper of Geology. He has joined Dawson in carrying out excavations at the Piltdown site at the end of May and during June 1912. Dawson and Woodward found remains of a fossil man dating from early Ice Age with ape-like jawbone with two teeth, more bits of skull, and several fossil animal teeth, bones, and flint tools. Disbelief was the first reaction of the scientific community, especially among Professor David Waterston of King’s College London, Dr. Gerrit Miller in America, and Professor Boule in France. According to them, anatomically speaking, the jaw could not have worked as a part of human skull when it is constructed in a different way. They also questioned the extraordinary wear of the teeth and the coincidence of finding all the fragments or specimen together. Weiner learned that the Piltdown man’s fragments were faked – the teeth had been chiseled down to resemble a human-like chewing pattern and stained with ordinary house paint to look like patina of age and ancient elephant and hippopotamus teeth were planted to the site. The same goes through for the Paleolithic tools, skull, and jaw fragments. Sir Arthur Conan Doyle is the man behind Sherlock Holmes. His possible involvement pointed out to the reasons that he lived near the Piltdown discovery site and had plenty of access to the fossils. In addition, majority of his works of fiction include familiarity with archeology and paleontology. His motive includes obsession to spiritualism and resentment towards scientists who mocked spiritualism. Aside from being the first person to discover the Piltdown man, Dawson’s involvement to the hoax was closely rooted to his personality. Dawson was ambitious and desperate to have a place in the scientific elite in the Royal Society. He has records of frauds in the field of archeology and his writings showed plagiarized content. Woodward has been considered a