Dentosphere : World of Dentistry

# If a chemical agent is produced by a cell and if the agent acts on the same cell, the effect is termed as: A. Endocrine effect B. Paracrine effect C. Autocrine effect D. None of the above # All of the following are autocoids except: A. Histamine B. Eicosanoids C. Serotonin D. Insulin # The following is believed to be a second hormonal messenger in many tissues. A. Cyclic AMP B. Prostaglandins C. Calcium ions D. Adenyl cyclase # Drug receptors for steroids are present in the: A. Nuclear chromatin B. Cell membrane C. Cytoplasm D. Nucleus

# Most deaths due to COVID-19, an infection due to novel coronavirus has occurred till date (23rd March) in which country? A. Russia B. China C. Italy D. USA The correct answer is C. Italy. No. of Deaths till Date. Italy  - 5476 China - 3270 Russia - 1 USA -  458

# Most common neurotransmitter is: A. Dopamine B. GABA C. Acetylcholine D. Norepinephrine The correct answer is : C. Acetylcholine

Hyaline Cartilage Matrix consists of lacunar capsule containing individual chondrocytes. Widely distributed in the body. Surface covered by perichondrium. Type II collagen is found Costal cartilage Articular cartilages of most synovial joints Thyroid, cricoid and arytenoid cartilages, pharyngeal cartilages, parts of nasal septum, epiphyseal plate essential for bone growth Fibrous Cartilage Also called white cartilage. Type I collagen is found. Perichondrium is absent. Highest tensile force. Calcification may occur with age. It is found in symphysis, Intervertebral discs, public symphysis, articular disc of most of the joints and menisci of knee joint. Elastic Cartilage Yellow cartilage. This is similar to hyaline cartilage except that elastic fibres are present instead of type II collagen fibres. Calcification does not occur. It is found in auricle. Wall of the medial part of the auditory tube. Epiglottis, corni...

(2} MDS (Masters in Dental Surgery) A. Eligibility: a. BDS or equivalent from institutions recognized by government of Nepal b. Registered in Nepal Medical Council c. Registered in respective medical council of applicant's own country for foreign candidates d. One year experience e. Candidate should score minimum of 50% (Pass Marks) in the Entrance Examinations conducted by Medical Education Commission for being eligible to be in the merit list. B. Exam Format: a. Single best response type with Multiple choice questions b. Four options (A, B, C, D) c. No. of questions - 200 d. Recall:Understanding:Application - 30:50:20 e. Duration - (3 hours including one-time voluntary toilet break) > To be allowed only after an hour

# For a given population, the number of disease cases are divided by the total number of people. Which of the following rates were calculated? A. Odds ratio B. Prevalence C. Incidence D. Specificity The prevalence of a condition describes the proportion of a population who have acquired a condition. Prevalence proportion is computed by comparing the total number of people affected with a condition against the overall number of people being studied. The result is usually written as a percentage, fraction, or by noting the number of known cases per 10,000 people or 100,000 people. Incidence describes the number of new cases that occurred in a given population within a certain period.

[LI 672]                                          FEBRUARY 2016                             Sub. Code: 4164 FOURTH YEAR B.D.S. DEGREE EXAMINATION PAPER IV – CONSERVATIVE DENTISTRY AND ENDODONTICS Q.P. Code : 544164 Time : Three Hours                                                                         Maximum : 70 Marks Answer All Questions I. Elaborate on:                                                                            ...