NEET MDS Shorts
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Prosthodonticsguiding planes are flat, polished surfaces on the abutment teeth that guide the RPD along a specific path during insertion and removal. They are located adjacent to the edentulous area and are crucial for the proper seating and function of the denture.
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Dental MaterialsTemporary restorative materials should have low compressive strength (less than 35 MP1) and good marginal sealing to facilitate easy removal and minimize thermal microleakage.
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Dental MaterialsPlatinized gold foil is a combination of gold and platinum where 15% of the content is platinum. It is produced by rolling layers of gold and platinum together to achieve the desired thickness and distribution of the platinum within the gold foil. This process creates a homogeneous mixture that enhances the hardness and wear resistance of the restoration, making it suitable for high-stress areas like incisal edges and cusp tips.
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PeriodonticsThe buccal marginal gingiva receives its main blood supply from the supraperiosteal vessels, which are located above the periosteum (a layer of connective tissue that covers the bone). These vessels are part of the periodontal ligament's blood supply and provide nutrients to the superficial tissues of the gum
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General MedicineThe polyps in Peutz-Jeghers syndrome are typically large and pedunculated with a lobulated contour. Histologically, they exhibit a characteristic arborizing network of connective tissue, smooth muscle, lamina propria, and glands lined by normal appearing intestinal epithelium.
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BiochemistryUric acid is a purine derivative, increased by purine salvage reactions that convert purines, purine ribonucleosides, and purine deoxyribonucleoside to mononucleotides (incorrect answer 4).
Such salvage reactions require much less energy than de novo synthesis (incorrect answers 1, 2). The liver is the major site of purine nucleotide biosynthesis and provides excess purines for other tissues that cannot synthesize purines.
A defect in hypoxanthine-guanine phosphoribosyl transferase, one of the enzymes of purine salvage, is responsible for purine overproduction and subsequent hyperuricemia observed in Lesch-Nyhan syndrome.
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PhysiologyAnswer: 2) The two major functions of GH are the growth of the skeletal system and metabolic effects, including gluconeogenesis.
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ProsthodonticsA middle-aged patient gives a history of previous upper dentures remade many times as they are becoming tight within one year. You would suspect osteitis deformans.