🌹‏إِنَّ رَبِّي لَسَمِيعُ الدُّعَاءِ🌹

Q/What is the difference between a core build up and a filling?🤔 -Core buildup is a dental restoration used to repair an excessively decayed, traumatized or otherwise damaged tooth. The process for this procedure is identical to that of a common filling, except a large surface area of the tooth typically needs to be repaired. Q/Does post and core hurt?🤔 -This procedure does not even require local anesthesia as the tooth has long been dead after the root canal treatment and no pain is felt. Q/Is a post necessary after a root canal?🤔 In summary — YES, posts are often needed, and there are many clinical factors related to whether or not they should be used, in addition to just how much tooth structure is remaining. Q/Which material could be used for a core build up?🤔 -Core build-up materials have been widely used in the last decade, especially when using the prefabricated posts in the endodontically treated teeth. These materials fall into three main categories: silver amalgam, composite resin, and resin-modified glass ionomers. Q/How do dentists build up teeth?🤔 -Your dentist roughens the surface of the tooth using acid etch, and then applies a liquid that allows the bonding agent to stick to the tooth. Your dentist applies the composite resin over the liquid, molds or shapes the tooth, and then hardens the material with an ultraviolet light.

Q/What is core build-up?🤔 -A core buildup is a restorative dental procedure that involves replacing missing tooth structure with special filling material so that it can successfully support a dental crown. The filling is usually prepared in the mouth using tooth-colored composites. Q/How long does a core build-up last?🤔 -This depends on the expertise of the dentist. An average core buildup should not take more than 20-30 minutes to complete. If it requires the placement of pins and/or post this may extend the process some minutes more. Q/What is the purpose of a core build up?🤔 -The primary purpose of a core build-up is to replace enough missing tooth structure to permit the creation of ideal retention and resistance form in the crown preparation.

Acid etch (Etching) : is the use of an acidic substance to prepare the tooth's natural enamel for the application of an adhesive. 🪱The acid roughens the surface microscopically, increasing retention of resin sealant. 🌧Etching of dental enamel with acid removes the smear layer and opens enamel tubules.

What is Snap-On Smile? Snap-On Smile is a patented, easy and painless way to obtain a beautiful smile. It was invented by a dentist who realized that not everyone can afford thousands of dollars to get a Hollywood smile make-over. After years of extensive research and development, your dentist can now provide you with a Snap-On Smile that is thin and strong with the look of natural teeth. You can eat and drink with your Snap-On Smile. It’s easy to care for and can be a temporary or permanent cosmetic solution. It’s available for upper and lower teeth. Snap-On Smile’s unique, proprietary formula of hi-tech dental resin make it very thin yet extremely strong. It fits right over your own teeth to give you a beautiful, natural looking smile—even if you have stains, chips, gaps or missing teeth. And for many people, Snap-On Smile can be life changing. It gives back the confidence to smile. Thousands of people worldwide have already experienced the unique benefits of Snap-On Smile. Snap-On Smile is for just about everyone! Snap-On Smile is an affordable and life-changing solution for people of all ages. Getting a Snap-On Smile simply requires two, short, painless visits with no drilling, no shots and no change in tooth structure. It is an excellent choice for: • Gaps, crooked, stained or missing teeth • Those who are not candidates for bridges or implants • Anyone who would like a Hollywood smile without the expense and discomfort of complex and invasive dental procedures • Anyone who has an old-fashioned removable partial denture and wants a beautiful, more comfortable alternative It’s easy, it’s painless and you can start today 1. You pick the style and shade of your new smile 2. Your dentist takes an impression of your teeth 3. You come back in about three weeks for a final fitting and you wear your Snap-On Smile home

حشوة القنوات الزائدة GP over extension من اكثر صور الأشعة المؤذية للعين هي صورة جذر تتجاوز فيه الحشوة حدود الجذر... و للأسف نكون هنا قد انتهينا من العلاج و صورة الأشعة هي الاخيرة قبل ان نودع المريض و نكون نعض على شفاهنا من تحت الكمامة على ما اقترفت ايدينا، او نقول ليش.... ليش هيك صار!!! والله كله تمام كان و ال cone fit مية بالمية... فنواسي انفسنا بعد ذلك و نعول على ال body tolerance و مناعة الجسم🤧 و أنا اولكم!!! لا استثني نفسي ولكن كيف نخفف من هذه الحالات في تطبيقنا اليومي؟ أولاً: إحترم ثم احترم ثم احترم الطول العامل Respect the Working Length!! ثانيًا: إطرح من الطول ملم واحد بعد ان تكون سجلته على ( صفر صفر) 00 فهذا يجنبك التحضير الزائد و يترك لك عامل أمان او ما يسمى Safety buffer ولا تنسى ال patency ثالثًا: ثبت جهاز الروتاري جيداً بيدك لتجنب سحب المبرد لك للأسفل او ما يسمى Screwing Effect رابعاً: Tugback جيد له دور ولا نخفي ذلك...لكن لا علاقة له دائمة بموضوع تجاوز الحشو للذروة!!! فقد تحصل عليه و يكون قوي ولكن تتفاجأ بتجاوز الحشو للذروة.. لأن موضوع ال Tugback و خاصة في القنوات الواسعة يحتاج لدقة و حذر خامساً : إقرأ النقاط الاربعة 👆🏻 مرة أُخرى مُلاحظة: إذا شككت في صحة قراءة جهاز الابيكس لوكيتر و قد يحصل هذا أحيانًا فلا ضير بأن تأخذ صورة شعاعيةللتأكد... و إذا اردت التأكد من WL بعد تحضيرك للقنوات او في منتصف تحضيرك لها فمن الافضل استخدام مبرد بحجم يتناسب مع القناة وقتها ، فالمبرد رقم 10 قد لا يكون دقيقاً إذا توسعت القناة.

#معلومة يمنع_اعطاء دواء الأسبرين (Aspirin) لمرضى النقرس (Gout)؟ لان الأسبرين بجرعاته المنخفضة والمتوسطة يتنافس مع حمض اليورك "uric acid" على الأطراح وبالتالي يتراكم حمض اليورك في الدم مما يؤدي إلى تفاقم الحالة ....

#Cement liners: def/ They are materials placed in medium thickness (100-500 mico ) وظيفتها 👉👉to provide pulpal medication(تأثير دوائي على ال pulp tissues)) and / or chemical protection. Types// 1_ Calcium hydroxide Ca(OH)2 أشهر نوع فيهم 2_ *Zinc oxide eugenol( ZOE) 3_Glass ionomer cement( GIC) 4_ Resin modified glass ionomer cement ( RMGIC) Functions of cement liners: 1_ Relief of pulpal inflammation لأنه يعمل pulpal medication ال Eugenol 👈👈 يعمل Acidation و Antibacterial أي أنه وضيفته قريبة من ال pulp ملاحظة // المادة اللي اقدر استخدمها ل enclose contact the pulp هي ال Ca (OH)2 وال Eugenol ما نقدر نستخدمها ?? الجواب/ لأنه يعمل Acidation عن طريق diproteinization يكسر البروتين مال ال Nerve endings نفسه وبالتالي المريض لا يحس بشيء وايضاً هو Antibacterial حتى يعمل نفس الوظيفة على ال cell wall مالت البكتريا يدمر البروتين مال Cell wall وبالتالي ما نقدر نستخدمه لأنه سوف يسبب مشكلة لل pulp tissues. 2_ Chemical protection عن طريق ال Glass ionomer cement وال RMGIC 👇👇 Due to good sealing ability وجاءت هذه الخاصية لأنهم يلزقوا Chemically bonded to the tooth structure ملاحظة// ال Cement liners ما يرهم ولا ينفع احطها على الEnamel أو ال external walls لأن هذه المواد عندهم Solubility tendency يحصلهم Solubility بسرعة جداً ** نحطهم على الدنتين 😎 ينفع

Liners & Bases 👆

🅱ase & Liner -------------------------------------------- ▶️ Definition ♦️Base \ is a material with thickness about (1-2 mm) placed under a restorative material when need ... it has many advantages like : stress breaking ... thermal , chemical or electrical insulator and mainly it resist the force that result from condensation of amalgam and the force of mastication. A base will be defined as a material that is used to replace missing dentin, and, therefore, is thicker than a liner So sufficient strength is recommended ❗️ ------------------------------------------------ ♦️Liner / is a material with thickness about (0.5 mm) placed over the pulpal floor with low strength.. it has many advantages : Mainly to protect the pulp from many irritants .. it protects the tooth from the restorative material, intraoral fluids, and ultimately from the outside environment..also it may has a sedative effect or formation of reperative dentin❗️ Note ⚠️ (The protective properties of bases and liners are vary according to the manufacturer) --------------------------------------------------- ♦️ cements \ A cement will be defined as a material that is used to lute together an indirect restoration and the prepared tooth. It may also possess some of the therapeutic characteristics of liners and bases. -------------------------------------------------- Ⓜ️aterials 1⃣ Zinc oxide eugenol (1850s) 🌐 Is one of The oldest material that used in dentistry! ✅ It used as base , liner or cement (now a days mostly temporary) ✅ The neutral ph (7) makes it the most favourable material with pulp.. ✅ The presence of eugenol gives it a sedative effect on the pulp. 🚫the lowest strength material make it low resistance to forces. 🚫 solubility ⚠️⚠️ The most important note that its can't be used under COMPOSITE RESTORATION because the interference with setting of composite ❗️ ------------------------------------------------ 2⃣ Calcium Hydroxide (Dycal) 🌐 One of the most commonly used material as a liner..(in the previously was used also for temp. Cementation) ✅ high ph (11-12) so it's stimulate the formation of reparative dentin. ✅ used for indirect and direct pulp caping (clear not infected exposure about 0.5 mm ❗️) ✅ Antibacterial because of its high ph. 🚫 low strength -------------------------------------------------- 3⃣ Zinc phosphate 🌐 A material that is used as a base and cement .. consist of zinc oxide & phosphoric acid. ✅ higher strength than zoe, dycal and zinc polycarboxylate 🚫 high acidity which leads to pulp irritation ❗️ 🚫 No chemical bonding to tooth structure. --------------------------------------------------- 4⃣ Zinc polycarboxylate 🌐 the same as zinc phosphate but the difference is the presence of polyacrylic acid . ✅ The polyacrylic acid has a large size of molecules and this prevent them from entering the dentinal tubules .. so it is less harmful than zinc phosphate ❗️ ✅ chemical bonding to the tooth structure and also to base metal alloy. (Prefer to be used as a base under AMALGAM RESTORATION ) 🚫 lower strength than zinc phosphate. --------------------------------------------------- 5⃣ Glass ionomer (1970) 🌐 Is a material that consist of (calciumaluminofluorosilicate glass) and polyacrylic acid.. which used as a base, liner and cement ... 💯Now a days the most common dental companies recommended to use GI than other materials. ✅ Very high strength ▶️ glass ionomer cements are generally stronger than zinc polycarboxylate cements. ✅ Ability to ionically bond to tooth structure (between the carboxylate groups in the GI and the calcium ions in the enamel and dentin). ✅ Release fluoride. The ability of fluoride is to inhibit the formation of secondary caries and stimulate the remineralization.. 🚫unfortunately sensitive to moisture immediately following mixing and during setting. -----

Base and liner ( definition, function and when to use )

Pedodontic👆👆👆 #level4 #جامعة صنعاء