NEET MDS Shorts
10516
Pedodontics
An Ellis Class IV crown fracture is characterized by the loss of a significant portion of the crown, often such that the pulp may be exposed. This severe type of fracture requires immediate attention to prevent further damage to the tooth
Ellis Class IV fractures are the most severe form of crown fractures. They extend below the gingival margin and involve the enamel, dentin, and often the pulp. The pulp may be exposed, making it a dental emergency.
74081
General MedicineCPR should have a ratio of chest compression to mouth breathing of 4:1
77124
General MicrobiologyThe flocculating unit (Lf) of diphtheria toxin is defined as the amount that causes rapid flocculation with one unit of antitoxin.
56023
EndodonticsWhen conventional retreatment is impossible due to well-fitted post and core, apicoectomy with retrograde filling is indicated. This addresses the apical pathology while preserving the existing restoration.
20722
Physiology
The parasympathetic nervous system is primarily responsible for the "rest and digest" functions, which include the regulation of the gastrointestinal system, cardiovascular system, and other visceral activities that are not directly involved in movement or emergency response.
14537
PhysiologyThe normal ratio of glycine to taurine conjugates of bile acids in the bile is approximately 3:1, reflecting the different conjugation patterns of bile acids.
35150
ProsthodonticsWhich of the following is painless: pregnancy tumour.
75463
Oral PathologyA compound odontoma is a benign odontogenic tumor consisting of enamel, dentin, cementum, and pulp arranged in recognizable tooth-like structures. Radiographically, it appears as multiple small, tooth-like radiopaque structures, unlike complex odontomas, which show as masses of calcified material.
52388
Dental Materials
Sodium chloride acts as an accelerator in gypsum-based materials by increasing the solubility of the hemihydrate, thereby speeding up the conversion to dihydrate and the overall setting process.
88588
Oral PathologyCervical sympathetic paralysis (Horners syndrome) causes anhidrosis of the homolateral (same) side of the face due to loss of sympathetic innervation to sweat glands. This results in decreased sweating on the affected side. Facial nerve trauma affects motor function, trigeminal nerve trauma affects sensation, and cerebral embolus affects central function, but none specifically cause unilateral facial anhidrosis.