NEET MDS Shorts
45993
Oral SurgeryThe inferior alveolar nerve block (IANB) is a common technique used in dentistry to anesthetize the mandibular teeth, including the molars. The nerve exits the mandibular foramen and runs along the mandibular canal before it branches into the incisive and mental nerves. For effective anesthesia, the injection site is typically located between the first and second premolars, aiming towards the medial surface of the ramus of the mandible, and the needle is inserted until it is just inferior to the root apices of these teeth. This position allows the anesthetic solution to reach the nerve as it emerges from the bone and before it gives off its major branches, thus achieving profound anesthesia for the procedure.
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Oral PathologyTraumatic injury is the most frequent cause of TMJ ankylosis, particularly intra-articular fractures involving the condyle and glenoid fossa. Trauma can cause intra-articular bleeding, fibrin formation, and subsequent fibrosis or bony fusion. Birth trauma, falls, motor vehicle accidents, and mandibular fractures are common causes. Osteoarthritis typically causes joint degeneration rather than ankylosis. Congenital syphilis and traumatic occlusion are rare causes.
91045
PhysiologyThe transport maximum for substances like glucose and phosphate represents the maximum amount that can be actively reabsorbed by the tubules before reaching saturation and being excreted in urine.
42307
PedodonticsThe EVA system is the most efficient and least traumatic instrument for correcting overhanging proximal restorations.
52999
Dental Materials
Dental stone typically has a lower water to powder ratio compared to other gypsum products, which gives it higher strength and durability suitable for making dental models.
11363
Oral SurgeryAnalgesics should be administered before the effect of local anesthesia wears off (preemptive analgesia). This approach prevents the establishment of pain pathways and provides better pain control than waiting for pain to occur. It ensures patient comfort during the transition from anesthetic effect.
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PhysiologyLeptin plays a role in the regulation of food intake by inhibiting hunger, signaling to the brain that the body has enough energy stored.
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INI CET
Dyskeratosis congenita is characterized by a combination of leukoplakia, nail abnormalities, and skin keratosis, often appearing in early childhood.
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INI CET
Humectants such as glycerin or sorbitol are included to prevent the paste from drying out when exposed to air, ensuring a consistent texture.
15873
INI CET
Cleidocranial dysplasia (CCD) is a genetic disorder caused by a mutation in the RUNX2 gene, not an alpha one gene. The condition is characterized by a range of symptoms, including large fontanelles and open sutures in the skull, large frontal sinuses, and dental abnormalities such as a high arch palate and prolonged retention of deciduous teeth.