NEET MDS Shorts
26316
INI CET
According to generally accepted criteria for implant success, a certain amount of crestal bone loss is expected during the first year after prosthetic loading. The typical range is around 1.5-2 mm. Subsequent annual bone loss should be less than 0.2 mm.
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Oral Surgery
Osteitis deformans, also known as Paget's disease of bone, is a chronic
condition characterized by abnormal bone remodeling. It typically affects older
adults and can lead to bone enlargement and deformity. When the skull is
affected, it can cause symptoms such as headache, deafness (due to involvement
of the temporal bone and compression of the auditory nerve), and visual
disturbances (due to compression of the optic nerve or changes in the orbital
bones). The gradual enlargement of the maxilla is a classic presentation of
facial involvement in this disease.
Pierre Robin syndrome is a congenital condition involving facial abnormalities
present at birth.
Osteopetrosis is a rare genetic disorder characterized by abnormally dense bones
that are prone to fracture.
Achondroplasia is a common cause of dwarfism, a genetic disorder of bone growth
90281
Oral SurgeryAnterior to lateral pterygoid plate. In the extraoral maxillary nerve block, the needle is inserted at the posterior aspect of the condylar neck and directed anteriorly to target the pterygomandibular space, which contains the maxillary nerve and its branches. This technique is used to anesthetize the molars and premolars of the upper jaw and is also known as the Vazirani-Akinosi technique.
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General PathologyHyperparathyroidism and pseudohypoparathyroidism can lead to bone demineralization, while osteopetrosis is characterized by increased bone density.
21257
PeriodonticsExplanation: Iontophoresis is a technique that uses a small electric current to drive charged substances (ions) into tissues. In dentistry, it is often used to deliver fluoride ions into the tooth structure, and it specifically encourages negative ions to penetrate.
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Oral SurgeryAmong the given choices, the advantage of a sagittal split osteotomy over a transoral vertical subcondylar osteotomy is that it allows for greater mandibular movement. The sagittal split osteotomy is a surgical technique used in orthognathic surgery to reposition the mandible in cases of severe skeletal discrepancies. It involves splitting the mandible along the midline and moving the two halves apart, which can provide significant advancement or setback of the lower jaw. This technique may be used to correct both mandibular prognathism and retrognathism, making it a versatile option in orthognathic surgery. Additionally, it is associated with fewer complications compared to the transoral vertical subcondylar osteotomy, which involves cutting through the medullary bone of the condyle and can pose a higher risk of injury to the facial nerve and other vital structures. However, it's important to note that the choice of surgical approach is determined by the specific case and the individual patient's needs.
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Endodontics
In the balanced force technique, the cutting action is achieved during the counter-clockwise rotation with apical pressure.
29310
Physiology
The pharyngeal stage of deglutition involves involuntary contraction of the pharyngeal muscles and is responsible for the rapid passage of the food bolus from the oral cavity to the upper esophagus. It is primarily a reflex act triggered by the voluntary movement of food into the back of the mouth.
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PeriodonticsA graft of tissue that is obtained from a donor genetically identical to the recipient.
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PeriodonticsGore Tex membrane is used during reattachment procedures to prevent the formation of long junctional epithelium.