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Most common transposition: Maxillary canine & 1st premolar Mandibular eruption sequence: 6, 1, 2, 3, 4, 5, 7 Maxillary eruption sequence: 6, 1, 2, 4, 5, 3, 7 Flush terminal plane outcome: First molars erupt end-to-end Critical age for occlusion supervision: 7 – 10 years…
The Nerve Impulse When a nerve is stimulated the resting potential changes. Examples of such stimuli are pressure, electricity, chemicals, etc. Different neurons are sensitive to different stimuli(although most can register pain). The stimulus causes sodium ion channels to open. The rapid change in polarity that moves along the nerve fiber is called the "action potential." In order for an action potential to occur, it must reach threshold. If threshold …
Anterior bite plate is an orthodontic appliance used primarily to manage various dental issues, particularly those related to occlusion and alignment of the anterior teeth. It is a removable appliance that is placed in the mouth to help correct bite discrepancies, improve dental function, and protect the teeth from wear. Indications for Use Anterior Crossbite: An anterior bite plate can help correct an anterior crossbite by repositioni…
Pemphigus 1. Ulcerative lesions on the skin and oral mucosa. 2. An autoimmune disease in which patients have autoantibodies against hemidemosomal attachment of epidermis cells. 3. Histologically characterized by acantholysis, in which epidermal cells appear to detach and separate from each other, as seen by Tzanck smears. 4. Can be life-threatening if untreated. 5. A positive Nikolsky sign is observed. Because of sloughing of the epidermis, a red blister forms…
On the basis of Receptors, drugs can be divided into four groups, a. agonists b. antagonists c. agonist-antagonists d. partial agonists a. Agonist morphine fentanyl pethidine Action : activation of all receptor subclasses, though, with different affinities b. Antagonist Naloxone , Naltrexone Action : Devoid of activity at all receptor classes c. Partial Agonist: (Mixed Narcotic Agonists/Antagonists) Pentazo…
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