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Introduction to Gastrointestinal Agents Introduction to Gastrointestinal agents include are medications or substances used to treat various conditions and symptoms affecting the gastrointestinal (GI) tract. They target different parts of the digestive system, from the esophagus to the colon, addressing issues such as indigestion, acid reflux, constipation, and diarrhea. Types of Gastrointestinal Agents Antacids Function: … Read more
Zinc eugenol cement is a dental material made from zinc oxide and eugenol. It is known for its antibacterial, analgesic, and sedative properties and is commonly used in dentistry as a temporary restorative material. Although it is not a direct desensitizing agent, it helps alleviate discomfort associated with dental procedures. Properties Composition: Made of zinc … Read more
Sodium fluoride is Used in toothpaste and mouthwashes to strengthen enamel, protect against acid attacks, and reduce tooth sensitivity by blocking dentinal tubules. Properties Colorless, odorless, crystalline compound. Highly soluble in water. Has both desensitizing and anti-cavity properties. Preparation Produced by neutralizing hydrofluoric acid with sodium hydroxide or sodium carbonate, followed by crystallization. Uses Toothpaste … Read more
Used Calcium carbonate as a desensitizing agent in toothpaste; forms a protective layer on teeth, sealing dentinal tubules and reducing sensitivity. Also serves as an abrasive agent to remove plaque and stains. Properties Naturally occurring compound. Odorless, tasteless, white crystalline powder. Practically insoluble in water. Preparation Sourced from natural materials like limestone, marble, or chalk. … Read more
Desensitizing agents in dental products are designed to reduce or eliminate tooth sensitivity. This sensitivity arises when dentin, the porous tissue beneath the enamel, becomes exposed due to enamel wear, gum recession, or other factors, allowing stimuli to reach the nerves inside the tooth. Mechanism of Action Physical Occlusion of Dentinal Tubules: Ingredients like strontium … Read more
Fluoride is a natural mineral essential for preventing and treating dental caries. It strengthens tooth enamel, making it more resistant to acid attacks from bacteria, and has significantly reduced the prevalence of dental caries. Key Roles of Fluoride Remineralization: Enhances the uptake of calcium and phosphate ions, helping to repair early tooth decay and reverse … Read more
Dentifrices are substances used with a toothbrush to clean and polish teeth. Functions of Dentifrices: Remove dental plaque, food debris, and stains. Provide protection against tooth decay and gum diseases. Forms of Dentifrices: Toothpaste: The most common form. Tooth powders and gels: Alternative forms that serve similar purposes. Dental Caries Definition: Dental caries, also known … Read more
Teeth Teeth are hard, calcified structures in the mouth that play a crucial role in biting, tearing, and chewing food, as well as in speech and maintaining facial structure. Human teeth can be categorized into four main types, each serving a specific function: Types of Teeth Incisors: Location: Front of the mouth, four in the … Read more
The physiological acid-base balance refers to the maintenance of a stable pH in the body’s fluids and tissues, crucial for cellular functions and enzymatic reactions. The normal pH range for arterial blood is 7.35-7.45. Regulation Mechanisms Buffer Systems: First line of defense against pH changes. Consist of a weak acid and its conjugate base or … Read more
Preparation of Oral Rehydration Salt ORS is a balanced mixture of electrolytes and glucose, formulated to prevent and treat dehydration caused by diarrhea or other conditions leading to fluid loss. Typical ORS Composition: Sodium chloride (NaCl) Potassium chloride (KCl) Trisodium citrate dihydrate (Na₃C₆H₅O₇·2H₂O) or sodium bicarbonate (NaHCO₃) Glucose (C₆H₁₂O₆) WHO-Recommended Composition: Sodium chloride: 2.6 g … Read more
