الأحد، 9 مارس 2014

Tooth decay may prohibit growth in children


Tooth decay may be even worse than originally thought.Sadly, dental caries (cavities) in young children is commonly untreated. In addition to causing damage and loss of teeth, a new study has found that it can stunt a child’s growth.

The study was published online on February 17 in the journal Pediatrics by researchers at King Fahad Armed Forces Hospital (Jeddah, Saudi Arabia) and University College London (London, United Kingdom).

The researchers note that dental caries in young children represents a significant public health problem. And they wanted to explore the relationship between oral health and growth after previous studies failed to show definitive evidence one way or the other. In this study, the researchers looked at the dental decay and the correlation between height and weight in Saudi Arabian children.

The study group comprised schoolchildren aged six to eight years who attended military primary schools in Jeddah, Saudi Arabia. Their caries status was evaluated with the DMFT (decayed, missing, filled, teeth) index for their primary teeth. Height and weight were evaluated with using z scores of height-for-age (HAZ), weight-for-age (WAZ), and BMI-for-age (BAZ) calculated by World Health Organization (WHO) standardized procedures. (A z score measures the reliability of data.) The relationships between dental caries and HAZ, WAZ, and BAZ were subjected to statistical analysis.

Included in the final evaluation were 417 of the 436 eligible schoolchildren with complete data were included, marking a response rate of 95.6%. Their average DMFT index was 5.7 ± 4.2. The investigators found an inverse linear relationship between caries status and children’s HAZ, WAZ, and BAZ and significantly lower anthropometric outcomes (growth) for children at each consecutive group with higher levels of caries. (An inverse linear relationship means that the higher the caries status, the lower the z scores were in a straight line relationship.)

Even when some secondary factors, like demographics and social values, were factored in, the correlation between decay and stunted growth still existed.

The authors concluded that the inverse linear association between dental caries and all anthropometric outcomes suggests that higher levels of untreated dental caries are associated with poorer growth in children. More research is necessary to confirm this study’s findings.


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Do's And Don'ts After Tooth Extraction



Tooth extraction refers to painless removal of tooth or tooth roots with minimum trauma to the surrounding tissues so that the extraction socket wound heals uneventfully without any post-operative complications. Whenever any surgery or Tooth extraction takes place the first thing we want is to let it heal properly ,quickly and smoothly. As a common practice, most of the dental surgeons have standard post surgery instructions printed which are handed over to the patient. One must follow these instructions given by the dentist. Apart from those instructions there are few things which need to be taken care post tooth extraction. Following all the post-operative instructions after tooth extraction reduces the incidence of infection and chances of dry socket after tooth extraction. If aftercare instructions are not followed after tooth extraction, then it can cause dry socket which can further lead to delayed healing of the tooth extraction socket. So patient is advised to follow certain do's and don'ts after tooth extarction procedure. 

Try to take some rest after Tooth Extraction. You may feel great but don’t exercise at least for a day after tooth extraction.When taking rest,keep your head lifted on a pillow.

Let the clot be formed on the tooth extraction site , which covers it and allow it to heal. Bite on the gauze piece after tooth extraction, which the dentist has put on the extraction socket, minimum for an hour. Don’t chew on that gauze piece but put a steady pressure. This will help in stopping the bleeding and formation of clot which acts like a cork on the bottle. Change gauze after every half an hour depending on the amount of bleeding. If clot is dislodged,the nerve endings are exposed,nerves and capillaries spasm and constrict,limiting essential blood supply which causes delay in healing. If the bleeding doesn't stop one should try putting a wet tea bag in the site, as tannic acid present in black tea helps stop bleeding.


Ice Packs: Apply ice pack on the side where surgery was performed. All this is done to reduce swelling. Though on simple extractions, swelling isn’t accompanied but in cases requiring severe cheek retractions, swelling can occur after operation. Though the swelling will not occur immediately but will reach maximum at 2nd or 3rd day. So, to minimize this swelling immediately apply ice packs. Various methods of applying ice packs are:

Sealed plastic bags filled with ice or

A bag of frozen peas or

Corn wrapped in a washcloth

Application of ice pack is most effective during the day of extraction as after 24 hours there is no significant beneficial effect. Ice packs should be applied 15 minutes on and 15 minutes off for 1-2 hours.

Blowing and sneezing: Make sure not to blow or sneeze after extraction as it creates a negative pressure thereby dislodging the clot and making the conditions favorable for dry socket.

Don’t spit minimum for 24 hours after tooth extraction because it can dislodge the clot. If the clot is dislodged you can have very painful condition known as dry socket. In case of dry socket, physiologic clot is lose both in quantity and quality. Afterwards one should spit 3-4 times in a day so that no food is lodged near the area where the tooth is removed. Dentist may advice CHLOROHEXIDINE mouth rinses as they kill bacteria.

Anesthetic feeling: It shouldn’t be a matter of worry if you feel numb even after surgery, as the period of numbness depends upon the area and dosage where anesthesia was given. So, it may vary for 6 hours to as long as a day. Make sure not to chew or bite something from that area.

Nausea: Feeling of nausea is also common after extraction. There are situations when anything you eat goes out. To get rid of nausea, take a teaspoon of Jell-O mix and 4 ounces of water, every minute until the feeling is gone. Two tablespoons every hour for 4 hours of coca cola syrup can also be taken. These methods will give you necessary sugar and fluids. After this soup can be taken.
Don’t smoke for 48 hours after tooth extraction as the chemicals in the smoke can effect the clot and hence the chances of developing dry socket 3-4 days after tooth extraction increases.


Don’t take solids immediately after Tooth Extraction till the numbness is there. When you start feeling your jaws you can start taking solids. After tooth extraction, take soft and liquid foods like soups, mashed potatoes, yogurts, milkshakes, smoothies etc.


Warm saline rinses: The main aim of rinsing is to clean the area of extraction as it is not possible to brush the socket. We mix salt to make the solution isotonic and similar to natural tissue fluid and thus it is less irritating than water. Rinsing is usually advised 12 hours after extraction. So, warm saline rinses help in cleaning and maintaining the hygiene of that area.

Take your medicines as prescribed by your dentist. Don’t skip the medicines. If antibiotics are given they should be taken regularly. Pain killers and anti-inflammatory drugs are to be taken after tooth extraction. It help in reducing the pain and swelling. If the pain continues even after two days of tooth extraction and bleeding starts then you should call your dentist.


Avoid Aspirin: Don’t ever take aspirin (Can take ibuprofen). Aspiring being a blood thinner will delay in clot formation thereby will prevent healing. Take the medications as prescribed by the physician and consult your dentist before taking any medicine.

Avoid Sucking of any type - SMOKING, SIPPING, EATING HARD VEGETABLES are to be avoided after tooth extraction. Try taking soft and liquid food options such as soups, mashed potatoes, yogurts, milkshakes, smoothies etc. after tooth extraction. Avoid hot drinks, spicy foods, sodas, etc.


If you are daring enough to avoid these instructions, you may be a strong contender for some complications.

Don’t poke into the gap created: Though for initial few days, it will feel a bit awkward to have a gap but don’t poke that area with any toothpick or tongue as it may delay healing, may provoke bleeding and can also lead to dry socket.
 
WHAT COMPLICATIONS CAN BE THERE AFTER TOOTH EXTRACTION?

Bleeding
Infection
Dry socket
Jaw fracture
Sinus perforation
Broken Bone Fragments (Sequestrii)
Part of the Tooth Left (Retained Roots)
Osteonecrosis

Bleeding After Tooth Extraction: If one follows the instructions of the dentist after Tooth extraction to take rest and to keep the gauze piece for 1 to 2 hours after extraction then the problem of bleeding is not there. The patients who are taking anticoagulants like Heparin or Coumadin or the patients who have bleeding disorders like hemophilia should give the history to the dentist. The patients who are taking aspirin or nonsteroidal analgesics have increased bleeding time.


Infection after Tooth Extraction: Infection is the most common complication after tooth extraction. Our mouth Is full of bacteria. One cannot sterilize it. Dentist decides whether to give antibiotics after the tooth extraction or not. Normally for the simple tooth extractions antibiotics are not required but if patient has pain and swelling or pus then it is better to go for preventive antibiotics. Bleeding continuing after 48 hours after tooth extraction, acute pain and swelling are very common signs of infection after the tooth extraction and the patient must visit the dentist in such circumstances to avoid further complications after tooth extraction.

Dry Socket: It is the most dreaded and painful condition which can happen after tooth extraction. For a day or two after dental extraction the patient is fine, and then he has acute pain and becomes very restless. Patient complains of bad taste in the mouth. It is more common after the dental extraction of lower teeth than the upper teeth. It can happen even after the simplest tooth extraction.

Healing of Extraction socket after Tooth Extraction

Jaw Fracture during Tooth Extraction: It can happen but very rarely and that too in lower jaw. The dentist who is doing the tooth extractions knows that how much pressure has to be put to pull out the tooth. But sometimes dentist before doing the extraction see the x-ray and tell the patient that the bone structure around the tooth has become fragile and chances of fracture are there. In such cases patient and the dentist are prepared beforehand to manage the situation.


Sinus Perforation during Tooth Extraction: The back teeth are in close proximation with the sinus. Sometimes if you see the x-ray it looks as if the roots of the back teeth are virtually in the sinus. It never happens. There is always a thin bone separating the sinus from the roots of the teeth. But sometimes during tooth extraction the piece of the bone comes along with the sinus. This normally happens when the tooth is close to the bone because of infection. In that case perforation occurs. If perforation occurs you cannot suck because in that case the air will rush from the nose to the sinus and through perforation to the mouth. If the perforation is small the patient complains of bleeding from nose. If the perforation occurs then the patient should follow certain instruction like:
Do not suck anything till the tooth extraction socket heals.
Do not do anything which will dislodge the clot. If the clot is not disturbed then no complication arises.
Do not smoke at least for a week after tooth extraction because the chemicals in the smoke either dissolve the clot or dislodge it.
Do not blow up the balloons or anything else, it will disturb the clot..
Avoid aerated drinks instead you can take fruit juices.
Don’t sneeze, it sneezing will surely dislodge the clot.
If the perforation is big and it does not heal by itself then another surgical procedure is carried out in which tissue graft is put to close the perforation.

Osteonecrosis: It is a rare dental condition which mostly occurs after dental extraction, implant surgery or other invasive dental procedure.


There is no sign of healing even after 8 weeks of dental treatment in case of osteonecrosis of jaw. The gums are worn away and the underlying bone is visible in this condition. It is mostly seen in cancer patients.



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الأربعاء، 5 مارس 2014

Periodontal diseases related to Oral Cancer

Periodontal diseases related to Oral Cancer


According to a new study by researchers from Case Western Reserve University (Journal of Virology, February 5, 2014), byproducts in the form of small-chain fatty acids from two bacteria prevalent in periodontal disease incite the growth of deadly Kaposi's sarcoma (KS)-related oral lesions and tumors.

The discovery could lead to early saliva testing for the bacteria, which, if found, could be treated and monitored for signs of cancer and before it develops into a malignancy, researchers say.

"These new findings provide one of the first looks at how the periodontal bacteria create a unique microenvironment in the oral cavity that contributes to the replication the Kaposi's sarcoma Herpesvirus (KSHV) and development of KS," said Fengchun Ye, the study's lead investigator from Case Western Reserve School of Dental Medicine's Department of Biological Sciences.

The research focuses on how the bacteria, Porphyromonas gingivalis (Pg) and Fusobacterium nucleatum (Fn), which are associated with periodontal disease, contribute to cancer formation. These bacteria are found in high levels in the saliva of people with periodontal disease, and at lower levels in those with good oral health -- further evidence of the link between oral and overall physical health, Ye said..

KS first appears as lesions on the surface of the mouth that, if not removed, can grow into malignant tumors. Survival rates are higher when detected and treated early in the lesion state than when a malignancy develops.

Kaposi's sarcoma affects a significant number of HIV-positive people, whose immune systems lack the ability to fight off the herpesvirus and other infections, he noted. "These individuals are susceptible to the cancer," he said. About 20% of HIV patients first develop KS lesions in the oral cavity, while other patients never develop oral KS, the study authors noted.

Also at risk are others who are immunocompromised: people on medications to suppress rejection of transplants, cancer patients on chemotherapies, and the elderly whose immune systems naturally weaken with age.

The researchers wanted to learn why most people never develop this form of cancer and what it is that protects them??

The researchers recruited 21 patients, dividing them into two groups. All participants were given standard gum-disease tests.

The first group of 11 participants had an average age of 50 and had severe chronic gum disease. The second group of 10 participants, whose average age was about 26, had healthy gums, practiced good oral health and showed no signs of bleeding or tooth loss from periodontal disease.

The researchers also studied a saliva sample from each. Part of the saliva sample was separated into its components using a spinning centrifuge. The remaining saliva was used for DNA testing to track and identify bacteria present, and at what levels.

The researchers were interested in Pg’s and Fn’s byproducts of lipopolysaccharide, fimbriae, proteinases and at least five different short-chain fatty acids (SCFA): butyric acid, isobutryic acid, isovaleric acid, propionic acid and acetic acid.

After initially testing the byproducts, the researchers suspected that the fatty acids were involved in replicating KSHV. The researchers cleansed the fatty acids and then introduced them to cells with quiescent KSHV virus in a petri dish for monitoring the virus’ reaction.

After introducing SCFA, the virus began to replicate. But the researchers saw that, while the fatty acids allowed the virus to multiple, the process also set in motion a cascade of actions that also inhibited molecules in the body’s immune system from stopping the growth of KSHV.

The discovery is described in The Journal of Virology article, "Short Chain Fatty Acids from Periodontal Pathogens Suppress HDACs, EZH2, and SUV39H1 to Promote Kaposi's Sarcoma-Associated Herpesvirus Replication

The most important thing to come out of this study is that we believe periodontal disease is a risk factor for Kaposi sarcoma tumor in HIV patients," Ye said.

With that knowledge, Ye said those with HIV must be informed about the importance of good oral health and the possible consequences of overlooking that area.


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Chocolate Beats Flouride !!

Chocolate Beats Flouride


For a healthy smile brush between meals, floss regularly and eat plenty of chocolate!!!!

Many people suffer from tooth pain and sensitivity caused by thining enamel, gigivitis, or periodontal desease.

A new human clinical trial conducted at the University of Texas Health Science Center in San Antonio examins the effects of a chocolate extract against flouride-based toothpastes on tooth hypersensitivity. 
The clinical trial found that a naturally occuring cocao extract, Rennou, actually work better than flouride to restore and repair enamel and occlude dentinal tubules, ultimately eliminating dental hypersensitivity in just seven days.
The independent, double-blinded, clinical trial of 80 patients compares the enamel strengthening potential of Theodent toothpaste, containing Rennou, to Fluoride- based toothpaste by exanining each product ability to repair and re-mineralise exposed dentin, which is the leading cause of tooth hypersensitivity.
The study found that patients who brushed with cocoa- containing Theodent twice daily for seven days experianced " 100 percent dental occlusion". Theodent goes to work occluding dentinal tubules, after the first day of use with significat benefits in just seven days.
Past research has also shown that the chocolate ingredient theobromine works better than fluoride. When lesions in artificial enamel were treated with theobromine, remineralization occurred at a greater rate than when they were treated with fluoride. The study found, in fact, that theobromine made teeth less vulnerable to bacterial acid erosion that could lead to cavities.
Fluoride is a toxic industrial waste product that is a poison to your body even in trace amounts, yet it is added to the majority of water supplies using the rationale that it helps prevent dental cavities.
With potential alternatives like theobromine, which, unlike fluoride, are not harmful when swallowed, it’s unfortunate that fluoride can still be found in a vast assortment of toothpastes, mouthwashes and professionally applied fluoride treatments. It’s even added to your drinking water for this purpose, as mentioned.



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الثلاثاء، 4 مارس 2014

Study questions wisdom of extracting infected teeth before heart surgery

wisdom of extracting infected teeth

A new study, published in The Annals of Thoracic Surgery, warns that removing an infected tooth before heart surgery could increase the risk of major complications, including the risk of death prior to surgery.

Abscessed or infected teeth are often removed before heart surgery, as this decreases the risk of infection during surgery and decreases the risk of an inflammation of the inner layer of the heart - calledendocarditis - following surgery.

But although it is standard practice to remove bad teeth prior to heart surgery, there is only limited evidence that supports this practice. The new study set out to evaluate what harms may be associated with dental extraction before cardiovascular surgery.

"Guidelines from the American College of Cardiology and American Heart Association label dental extraction as a minor procedure, with the risk of death or non-fatal heart attack estimated to be less than 1%," says study author and anesthesiologist Dr. Mark M. Smith, from the Mayo Clinic in Rochester, MN.

"Our results, however, documented a higher rate of major adverse outcomes, suggesting physicians should evaluate individualized risk of anesthesia and surgery in this patient population," he adds.
Heart attack, stroke, kidney failure and death

Dr. Smith and his colleagues found that 8% of patients who had teeth removed prior to heart surgery experienced adverse outcomes. These included heart attack, stroke, kidney failure and death.

Overall, 3% of patients died after dental extraction and before the heart surgery could take place.

But this study did have some limitations. Co-author and cardiac surgeon Dr. Joseph A. Dearani says:

"With the information from our study we cannot make a definitive recommendation for or against dental extraction prior to cardiac surgery. We recommend an individualized analysis of the expected benefit of dental extraction prior to surgery weighed against the risk of morbidity and mortality as observed in our study."
Established thinking on dental surgery and cardiac surgery is changing

The results of the Mayo Clinic study contribute to an ongoing departure in current thinking on the relationship between dental surgery and cardiac surgery.

"'Accepted wisdom' leads surgeons to request dental reviews prior to cardiac surgery in many thousands of patients annually around the world," says Dr. Michael Jonathan Unsworth-White, from Derriford Hospital in Plymouth, UK. "Dr. Smith's group asks us to question this philosophy. It is a significant departure from current thinking."

Writing in a linked comment, Dr. Unsworth-White draws parallels with another recent change of consensus. In patients undergoing dental work who have existing heart problems, it has previously been standard practice to prescribe prophylactic antibiotics.

Again, this was because there is a known link between dental bacteremia and endocarditis. But more recent studies have suggested that the potential side effects of these antibiotics may outweigh the benefits.

Dr. Unsworth-White explains:

"The American Heart Association and the National Institute for Health and Clinical Excellence in the UK have withdrawn support for this practice of prophylactic antibiotics because the danger from overuse of antibiotics outweighs any other potential risks. Regular tooth brushing, flossing, and even chewing gum are now recognized to dislodge as much, if not more, bacteremia than most dental procedures."


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متى ينصح بتغليف الأسنان

متى ينصح بتغليف الأسنان


ينصح طبيب الاسنان بتغليف الاسنان,وذلك من اجل المحافظة على الاسنان كي تقوم بأكمل وجه في أداء وظائفها والحفاظ على الناحية الجمالية للاسنان,وذلك حسب الحالات التالية:
 1.ازالة عصب السن:
يتعرض السن لأسباب متعددة تؤدي الى ازالة العصب,واجراء ما يسمى بالمعالجة اللبية (Endodontic treatment) لسن او مجموعة اسنان مصابة,علماً بأن عصب السن هو عبارة عن اوعية دموية تتوسط السن حيث يقوم العصب بوظائف متعددة وخاصة الحسية منها,ويقوم بتغذية الاسنان وهو مسؤول عن اللون الابيض للاسنان,ولكن عندما تتم المعالجة اللبية فأن السن او الضرس يصبح ميتاً ولكنه موجوداً,ويقوم بنفس وظائف الاسنان الحية,لذا فأنه ينصح بتغليف الاسنان المعالجة لبياً خوفا من التلف  او من تأكل السن مع الزمن. ولذلك فأن تغليف السن يساعد في الحفاظ على السن اطول مدة ممكنة بالفم,لان التغليف او التلبيس يمتص الصدمات التي تتعرض لها الاسنان بواسطة العوامل الخارجية ومنها المواد الصلبة ونوعية الطعام واشياء اخرى. لذا فأن سحب العصب يؤدي الى تموت في السن كما ذكرنا وتغيير لون السن من الابيض الى الداكن وخاصة بالاسنان الامامية حيث يصاب الشخص بحالة نفسية عند فقدان بريق الاسنان المتعارف عليه.
 2.تغير لون السن:
يتعرض السن في خضم المسيرة الحياتية الى حوادث كسور شتى وبالاخص عند وصول الكسر الى حجرة اللب اي العصب,سواء لدى صغار السن وخاصة الاصابه بالاسنان الدائمه او الكبار . فإنه من الضروري في هذه الحالة ازالة العصب,واجراء المعالجة اللبية حسب الاسس العلمية المتعارف عليها في عيادة طبيب الاسنان,وبعد مرور فترة غير معروفه من الزمن يتغير  لون السن,مما يؤثر تاثيراً كبيراً على نفسية الشخص المصاب,وهنا ننصح بتغليف السن باللون  المناسب في عيادة طبيب الاسنان. وخوفاً من انتقال البكتيريا الموجودة في داخل حجرة اللب الى الجذر ومن ثم الى ذروة السن,مما يسبب  تورم  او خراج (abscess) وبالتالى قلع السن.
 3.التصبغ الذي قد يصيب جميع الاسنان:
 وذلك بسبب تناول الام الحامل دواء اسمه (تتيترا سايكلين),مما يغير ويصبغ الاسنان جميعها في الفكين باللون البني,لذلك فأن حالة المريض النفسية تكون متردية حينما ينظر الى الغير بأنهم يتمتعون بأسنان بيضاء سليمة. وهنا ننصح بتغليف الاسنان جميعها في عيادة طبيب الاسنان لاعطاء الشكل واللون المطلوبين.
 4.التصبغ بواسطة نقص مادة الفلورايد او زيادتها:
مما يسبب تصبغ او تأكل في طبقة مينا السن,مما يسبب احراج للشخص المصاب,وسرعان ما تعود الابتسامة جميلة في حال قام بتغليف الاسنان المصابة في عيادة طبيب الاسنان.
 5.الدياستيما:
يصاب بعض الاشخاص بفراغات بين الاسنان فمنها فراغات صغيرة ومنها كبيرة,مما يستدعي التدخل من قبل طبيب الاسنان لاغلاق هذه الفراغات بواسطة تغليف الاسنان واعطاء الشكل المناسب بالتركيبة المناسبة.
6.سوء في بزوغ السن:
مما يجعله يتموضع في غير مكانه في القوس السني,مما يسبب مشكلة في نطق بعض الاحرف,ومشكلة في الهضم وهنا من الممكن ان يتدخل طبيب اسنان التقويم او يتم تغليف الاسنان,حسب الخطة التي يرسمها طبيب الاسنان في عيادته.
7.ترميم الاسنان:
يقوم طبيب الاسنان بمعالجة مرض تسوس الاسنان وذلك بازالة هذا التسوس حسب عمقه,وفي بعض الحالات يكون تسوس الاسنان عميقا,ويصيب اكثر من جدار في السن والواحد مما يستدعي تحضير السن او حفره بوضع حشوات قد تكون كبيرة في الضرس او السن المصاب ,مما يضعف جدران هذا السن ,لذا فأننا ننصح بتلبيس الضرس الذي يتكون من حشوات ذات ثلاث سطوح او اكثر لحمايته من الكسر المفاجئ اثناء تناول الطعام.
8.انسحال الاسنان:
تتعرض الاسنان الى حالة من الضغط او الصكيك ما بين الاسنان بعضها ببعض,اثناء الاكل وخاصة اثناء النوم بطريقة غير ارداية,مما يسبب تآكل في طبقة المينا مما يعرض الشخص الى حساسية في الاسنان تكون مزعجة ومؤلمة احيانا عند تناول المواد الباردة والساخنة والسكاكر,وذلك يستدعي تغليف الاسنان مكان الصكيك لكي يكون الصكيك فوق الاسنان المغلفة,اما اذا تركت بدون تغليف,فأن المفصل الصدغي يتأثر ويصيبه الم حاداً او مزمناً مما يؤدي احيانا الى انزلاقات في الفك السفلي وذلك يعمل على عدم القدرة باغلاق الفم.
9.الاهتراء في الاسنان.
10.فقدان الاسنان لرونقها الطبيعي.
11.الشيخوخة.
الفرق بين تغليف الأسنان وتركيب الجسور:
ان مفهوم كلمة تغليف السن او تلبيس السن تعني تلبيس او تغليف سن واحد فقط لحمايته والحفاظ عليه من العوامل الخارجية,حيث تقوم التلبيسة بامتصاص الصدمات اثناء تناول الطعام وخاصة الصلبة منها,ويشمل تغليف سن واحد او مجموعة اسنان فراداً او مجموعة اسنان موجودة,اما بالنسبة للجسر فهو يقوم على مبدأ تعويض السن او الضرس المفقود مما يحتاج الى تحضير السن الامامي او الخلفي للسن او الضرس المفقود.ومن الممكن اجراء جسر من مجموعة اسنان أو كامل الفكين حسب ما يراه طبيب الاسنان مناسباً حيث يقوم الطبيب بوضع خطة عمل بالاتفاق مع المريض وخاصةً على نوعية التلبيس او الجسور حيث انه من الاجدى ان يقوم طبيب الاسنان بشرح مفصل للمريض عم الطريقة التي سوف يقوم بها من اجل مستقبل اسنان المريض.

أنواع التركيبات أو أنواع التلابيس:
1.الوجوه الخزفية التجميلية  (laminate veneers).
2.الزيركون.
3.وجوه من البورسلان من دون معدن.
4.ورسلان بمعدن.
5.جاكيت كراون.
6.تغليف اسنان الاطفال المتهدمة بعد معالجة العصب من أجل الحفاظ عليها بالفم لحين سقوطها واستبدالها باسنان او اضراس دائمة.

مساوئ التركيبات السنية:
1.الكسر: تتعرض الوجوه الخزفية او التلابيس للكسر احيانا وذلك حسب الامور التالية :
-سوء تصنيع مخبري.
-وجود نقطة عالية او حادة بأحد الفكين مما يؤدي مع الوقت الى كسر بالتلبيسة لذا ننصح بأخذ الاحتياطات اللازمة بالعيادة والمختبر من اجل الحفاظ على اطباق سليم 100 % .
2.سقوط التلبيسة المفاجئ: تتعرض التلبيسة الى السقوط مع الزمن,ويقوم طبيب الاسنان بأعادتها الى مكانها بواسطة سمنت خاص قوي يستخدم في عيادة طبيب الاسنان.
3.التهاب عصب السن: في بعض الحالات يتعرض السن المغلف لسبب او لاخر لالتهاب في العصب,
ويقوم طبيب الاسنان بأجراء التالي:
-اما ازالة التلبيسة والقيام بالمعالجة اللبية السليمة ومن ثم اعادة التلبيسة
-أو اذا تعذر فك التلبيسة واصبح السن مهدداً ننصح بأجراء فتحة من داخل السن باتجاه العصب باستخدام الصور الشعاعية واجراء المعالجة اللبية اللازمة.
4.تكون اكياس أو خراجات مصدرها السن المغلف: مما يؤدي غالباً لأجراء جراحة وفقدان السن.
تختلف مدارس طب الاسنان في العالم حول تغليف الاسنان,فمنهم من يقول: لكي اكسب أكثر جمالاً في تركيب الاسنان ينصح بإزالة اعصاب الاسنان وأجراء المعالجة اللبية مما يسمح بتمكين مختبر الاسنان بأجراء شكل الاسنان بشكل اجمل ,ولكن من المتعارف عليه علمياً بأن عصب السن هو الجزء الحي بالسن,إذا تم ازالة عصبه من اجل التركيب فإنه سيتموت وان العمر يبقى محدوداً ولا يعلم به الا الله,وأما الرأي الأخر والذي يقول انه من الافضل اجراء تلابيس للاسنان دون ازالة العصب مما يعطي حيوية وعمر اطول للاسنان التي تم تغليفها.

See Also :Dental Implant Diploma

And Also : Orthodontics Diploma

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Contacts: 9 abbas el-akkad street, nassr city, Cairo, Egypt
Tel: (+202) 24010655
Cell phone: (+2) 01143050023
Call phone: (+2) 01024212175
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الأحد، 2 مارس 2014

SAQs for Dentistry Book

SAQs for Dentistry Book



Product Description

This book contains over 300 short answer questions covering the undergraduate syllabuses taught in the UK's dental schools. "SAQs for Dentistry" is also useful for postgraduate students taking the MFDS, MFGDP and the new MJDF exams, as well as overseas doctors taking the IQE. Questions are grouped by subject, enabling students to target their weaker areas, speeding revision and promoting success. It is really user-friendly, with answers on right hand pages and questions overleaf maximizing revision time. It provides thorough explanations and answers for every question help students develop their learning and understanding. It includes useful hints and tips on how to approach the exams. It features several photo questions relating to radiology.


From the Author


Methods of examining and assessing students have changed over recent years. Traditional essay writing is not as popular as it once was and is often replaced with short answer questions (SAQs). The advantage of SAQs over essays is that they allow a wider range of topics to be examined in a single paper, and the marking is often more objective. They test knowledge recall as well as application of knowledge and understanding of principles.


The aim of the book is to help candidates assess their knowledge and identify the areas where they need to read more, as well as providing valuable examination practice. It is intended to be used as a revision aid for students taking the undergraduate or postgraduate examinations in dentistry, such as BDS, IQE and MFDS. We hope that you will find this book to be helpful and easy to use.




Register here For more information & diplomas
Contacts: 9 abbas el-akkad street, nassr city, Cairo, Egypt
Tel: (+202) 24010655
Cell phone: (+2) 01143050023
Call phone: (+2) 01024212175
E-mail: info@spc-eg.com