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Showing posts with the label UPPSC Dental exams

periodontal pocket: UPPSC previous paper discussion

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A periodontal pocket is a space or crevice that forms between the gum tissue (gingiva) and the tooth surface due to the progression of periodontal disease. Periodontal pockets are a hallmark sign of gum disease and play a significant role in the progression of the condition. They can vary in depth and severity, and their presence indicates the deterioration of the supporting structures of the tooth. **Causes of Periodontal Pockets:** Periodontal pockets are primarily caused by the accumulation of dental plaque, a sticky film of bacteria that forms on teeth. Over time, if plaque is not adequately removed through regular oral hygiene practices such as brushing and flossing, it can mineralize into tartar (calculus). Tartar buildup along the gumline provides a rough surface that encourages the further accumulation of plaque. As bacteria in the plaque multiply and release toxins, the body's immune response is triggered. Inflammation occurs, leading to the breakdown of the co

spacer wax : UPPSC paper discussion

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A wax spacer is a thin layer of wax that is applied to the intaglio (inner) surface of a special impression tray before making an impression of the patient's oral structures. This technique is commonly used in prosthodontics to ensure adequate space for the impression material and to prevent the impression material from flowing into areas where it shouldn't. Here's how the wax spacer in a special tray works: **Purpose of Wax Spacer:** - **Preventing Impression Material Overflow:** The wax spacer acts as a barrier that prevents the impression material from flowing excessively beyond the intended borders of the impression. - **Creating Adequate Space:** By adding a wax spacer, you create a controlled gap between the tray and the oral structures, ensuring that the impression material captures the intended anatomical details without distortion. **Procedure:** 1. **Selecting the Special Tray:** Choose the appropriate special tray that fits the arch you'll be work

gypsum:accelerator and reatarders

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Retarders are additives used in gypsum products to slow down the setting time and extend the working time of the material. This is especially important in situations where you need more time to pour, mix, or manipulate the gypsum before it starts to harden. Here are some common retarders used in gypsum products: 1. ** Borax (Sodium Borate) :** Borax is a common retarder that slows down the setting reaction by delaying the hydration of the gypsum particles . It's often used in dental plaster and stone to increase the working time. 2. ** Potassium Sulfate: ** Potassium sulfate is another effective retarder used in gypsum products. It helps control the setting time and provides flexibility in manipulating the material before it solidifies. 3. ** Tartaric Acid :** Tartaric acid is used as a retarder in dental plaster and stone. It can help extend the setting time, allowing for more precise casts and impressions. 4. ** Sodium Citrate: ** Sodium citrate is used as a retarde

ramsay hunt syndrome

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Ramsay Hunt syndrome, also known as herpes zoster oticus , is a viral infection that occurs when the varicella-zoster virus (the same virus that causes chickenpox and shingles) affects the facial nerve and the vestibulocochlear nerve in the ear. This syndrome is named after James Ramsay Hunt, who described the condition in the early 20th century. Here are some key points about Ramsay Hunt syndrome: **1. Symptoms :** - Ramsay Hunt syndrome is characterized by a combination of symptoms, including a painful rash around the ear, earache, facial paralysis , and in some cases, hearing loss or dizziness. - The rash is often accompanied by small fluid-filled blisters , and it typically affects the external ear canal, outer ear, and sometimes the mouth and throat. **2. Facial Paralysis:* * - One of the hallmark features of Ramsay Hunt syndrome is facial paralysis on the same side as the rash . The facial nerve, which controls facial muscles, is affected by the viral infection, le

bevel used in conservative dentistry

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In conservative dentistry, a bevel is an important aspect of tooth preparation that involves creating an angle or slope on the cavosurface (junction between the tooth surface and the prepared cavity) of the tooth. The bevel serves various purposes, including improving retention, reducing stress concentration, enhancing esthetics, and facilitating the placement of restorative materials. There are different types of bevels used in conservative dentistry, each with its own specific characteristics and indications. Here are some common types of bevels: **1. Chamfer Bevel:**    - A chamfer bevel is a flat, continuous, and slightly rounded angle that is prepared on the cavosurface margin of the tooth.    - It is often used in metal-ceramic restorations and metal inlay/onlay preparations.    - The chamfer bevel provides a smooth finish, enhances esthetics, and reduces the risk of fracture of brittle restorative materials. **2. Shoulder Bevel:**    - A shoulder bevel is a right-ang

dental casting gold alloys

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Dental casting gold alloys are specialized materials used in dentistry for creating precise and durable dental restorations. These alloys are designed to meet the specific requirements of dental applications, providing a combination of strength, biocompatibility, and esthetics. Dental casting gold alloys are commonly used for fabricating crowns, bridges, inlays, onlays, and other dental prostheses. Here's an overview of dental casting gold alloys: Golden Boi Gold F3v3r GIF from Golden Boi GIFs **Composition:** Dental casting gold alloys are composed of a mixture of various metals, each contributing to specific properties of the alloy. The composition of these alloys can include gold, silver, copper, and smaller amounts of other elements such as platinum and palladium. The proportions of these metals are carefully selected to achieve the desired characteristics of strength, ductility, and color. **Properties:** 1. **Biocompatibility:** Dental

dental amalgam and gold : galvanic corrosion

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The " galvanic shock" or "galvanic corrosion." It occurs when two different metals, such as dental amalgam and gold restorations , come into contact in the oral cavity , creating a small electric current due to differences in their electrical potentials. This can lead to discomfort or an unusual sensation for the patient, commonly described as a metallic taste or a shock-like sensation. Electric Shock Joshua Weissman GIF from Electric Shock GIFs Here's more information about galvanic shock and how it relates to dental amalgam and gold restorations: **1. Dental Amalgam :** Dental amalgam is a common restorative material that contains a mixture of metals, including mercury, silver, tin, and copper . It has been widely used for restoring cavities in teeth due to its durability and longevity. **2. Gold Restorations: ** Gold restorations, often referred to as gold crowns or inlays, are also a type of dental restoration ma

Cleft lip and palate: surgical aspects

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  The "Rule of 10" is a guideline commonly used in the management of cleft lip and palate conditions . It provides a simple way to remember important aspects related to timing, surgical intervention, and follow-up in cleft lip and palate surgery. Here's what the "Rule of 10" entails: 1. ** 10 Weeks :** Cleft lip repair is typically performed around 10 weeks of age. This allows for the infant to grow and gain weight, improving their overall health before undergoing surgery. 2. ** 10 Pounds :** The infant should weigh at least 10 pounds (4.5 kilograms) before cleft lip surgery. Adequate weight gain is important to ensure that the baby is healthy and strong enough to undergo the surgical procedure. 3. ** 10 Hemoglobin :** The hemoglobin level should be at least 10 g/dL before surgery. This indicates an adequate blood supply and helps reduce the risk of complications during the procedure. 4. ** 10 Centimeters :** For cleft palate surgery, the surgery is often perfor