NEET MDS Shorts
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Oral and Maxillofacial SurgeryThe lingual split technique minimizes bone loss and tissue trauma by dividing the tooth along its longitudinal axis and removing it in two halves, reducing the need for extensive buccal bone removal.
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Oral SurgeryThe correct technique for applying extraction forceps involves placing the beaks as apically as possible onto the root surface, below the cementoenamel junction (CEJ), to ensure a secure grip and to apply force to the root rather than the fragile crown. Placing the beaks on the crown above the CEJ is incorrect and can lead to crown fracture.
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Public Health DentistryAn expression of probability based on the ratio of the difference between two means, divided by the standard error of the difference, is known as the t value (or t-statistic). This value is used in hypothesis testing to determine if the means of two groups are significantly different.
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Physiology
The cerebellum is crucial for the coordination of movement. It receives signals from the motor cortex about the intended movement and the actual position of the limb through climbing fibers. By timing these signals, it helps to stop the movement at the correct point by inhibiting the agonist muscles and stimulating the antagonist muscles.
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Dental Materials
Regular dental stones have a low expansion rate, usually between 0.1% and 0.2%, which is suitable for accurate model fabrication.
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Oral PathologyAll of the mentioned syndromes can exhibit high arched palate. Marfans syndrome shows high arched palate due to connective tissue abnormalities. Down syndrome may have high arched palate. Pierre-Robin syndrome has micrognathia with high arched/cleft palate. Treacher Collins syndrome shows palatal defects. Craniofacial dysostosis (Crouzons) and cleidocranial dysplasia both can present with high arched palate due to developmental abnormalities affecting craniofacial growth.
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NEETMDSOral splints, often called night guards, are commonly used to manage bruxism (teeth grinding or clenching) and can help determine if a toothache is related to this habit rather than other issues like endodontic problems or a specific TMJ dysfunction
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Oral SurgeryWhen the mandible is fractured bilaterally in the canine region, the central fractured segment loses the anterior pull from the muscles attached to it. The geniohyoid, genioglossus, and anterior belly of the digastric muscles are all attached to this segment and pull it posteriorly and inferiorly.
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Oral SurgeryThe straight elevator is properly used to advantage when the interdental bone is used as a fulcrum. This is because the straight elevator can be inserted into the periodontal ligament space along the long axis of the tooth, and when levered against the interdental bone, it helps in lifting the tooth from the socket. Using the adjacent tooth as a fulcrum can potentially damage it.
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NEETMDSChlorhexidine is commonly used as a hand rub at a concentration of 0.5% in 70% alcohol for effective antimicrobial activity.