Dentosphere : World of Dentistry

 MECEE MDS 2024 RESULT Medical Education Commission Government of Nepal MEDICAL EDUCATION COMMISSION Directorate of Examination MEDICAL EDUCATION COMMON ENTRANCE EXAMINATION (PG 2024) ENTRANCE RESULT Wednesday, February 7, 2024 Program: Masters of Dental Surgery (MDS)  50th Percentile (Cut-off) Score: 71.25 SN ROLL NO FULL NAME FINAL SCORE RANK 1 31434 HIMAL DAHAL 132.5 1 2 31268 BISHAL CHAPAGAIN 128 2 3 31328 ROSHANI SUBEDI 125.75 3 4 31447 PRIYANKA DHAKAL 123 4 5 31438 MEGHA SHRIVASTVA 121.25 5 6 31485 SAMBRIDHI MATHEMA 120.5 6 7 31220 NIRAJAN BHANDARI 120.5 7 8 31056 KRISHNA DEV MAHATO 120.25 8 9 31413 RAMAN LAMA 119 9 10 31444 PRAVIN BHATTARAI 118.75 10 11 31402 ABHINAW SUBEDI 117.5 11 12 31528 PRATIMA KHADKA 117 12 13 31380 PRABESH BANSTOLA 116.25 13 14 31529 AASHISH KOIRALA 115.5 14 15 31197 VASKAR PRASAD PARAJULI 115 15 16 31354 ASMITA GYAWALI 113.25 16 17 31274 ROMIN SHRESTHA 112.5 17 18 31120 SUNAYAN SUBEDI 112.5 18 19 31192 MILAN KOIRALA 111.75 19 20 31490 SABHYATA P...

 # Length of junctional epithelium is: A. 0.25-1.35 mm B. 0.5-0.75 mm C. 1.0-2.0 mm D. 1.0-1.5 mm The correct answer is A. 0.25-1.35 mm. Junctional Epithelium: The epithelium that attaches the gingiva to the tooth's surface, it consists of stratified squamous non-keratinizing epithelium. It is 3-4 layers thick in early life but the number of layers increases with age to 10-20. It is thicker in the coronal portion but becomes thinner toward the cemento-enamel junction only a few cell layers. The length of the JE ranges from 0.25 to 1.35mm. 

 # Chronic atrophic candidiasis is commonly referred to as:  A. Oral Thrush B. Denture stomatitis C. Angular cheilitis D. Erythema multiforme The correct answer is B. Denture stomatitis. Denture stomatitis should be mentioned because it is often classified as a form of erythematous candidiasis, and some authors may use the term chronic atrophic candidiasis synonymously. This condition is characterized by varying degrees of erythema, sometimes accompanied by petechial hemorrhage, localized to the denture-bearing areas of a maxillary removable dental prosthesis.  Although the clinical appearance can be striking, the process is rarely symptomatic. Usually, the patient admits to wearing the denture continuously, removing it only periodically to clean it. Whether this represents actual infection by C. albicans or is simply a tissue response by the host to the various microorganisms living beneath the denture remains controversial.

 # Stress shielding effect is seen in:  A. Miniplates B. Compression bone plating C. Lag screw D. Transosseous wiring The correct answer is B. Compression bone plating. Stress shielding is the reduction in bone density (osteopenia) as a result of removal of typical stress from the bone by an implant. This is because by Wolff's law, bone in a healthy person or animal remodels in response to the loads it is placed under.  The most obvious postoperative complications of internal fixation using compression plates are misplaced bone segments or fixation devices. These complications are readily identified by clinical examination (e.g. malocclusion) or postoperative radiographic examinations. A second surgical procedure will correct such complications. Other complications related to rigid internal fixation include palpability, infection, extrusion or exposure, translocation, stress shielding, cortical osteopenia, and nonunion.

# All of the following statements about cast cobalt alloys are true EXCEPT: A. They have a modulus of elasticity twice that of gold alloys B. They are more rigid than gold alloys C. They have higher ductility than gold alloys D. They have a lower proportional limit than gold alloys # The contraction of gold alloys on solidifying is approximately: A. 0.4% B. 1.4% C. 2.4% D. 3.4% # Addition of large amounts of platinum to a casting gold alloy will: A. Decrease its strength and ability to be hardened B. Decrease its tarnish resistance C. Increase its fusion temperature D. Redden the alloy # The pattern for the metallic framework of a removable partial denture is fabricated from: A. Inlay wax type-II B. Boxing wax C. Modelling wax D. Casting wax

 # Which of the following drugs is likely to damage the eighth cranial nerve when administered for a long period of time ?  A. Ethambutol  B. Isoniazide  C. Rifampicin  D. Streptomycin The correct answer is D. Streptomycin. Nephrotoxicity, ototoxicity, and contact sensitization (due to this, topical application is not indicated) are common side effects of Streptomycin. 8th nerve is usually affected. Vestibular involvement is more common and cochlear involvement is less common. 

 # Which of the following structures is not of ectodermal origin? A. Hunter Schreger bands B. Enamel spindles C. Enamel tufts D. Enamel lamellae The correct answer is B. Enamel spindles. Enamel spindles are odontoblastic processes, which extend into enamel. Enamel spindles are mesenchymal in origin.