Dentosphere : World of Dentistry

The correct answers are highlighted in Green. Once you have finished studying these MCQs, Test yourself by watching the video at the bottom of the page. # Incompatible blood transfusion leads to all except: a) Increased plasma bilirubin b) Increased plasma prothrombin c) Jaundice d) Renal failure # The best method of controlling bleeding is to: a) Apply a tourniquet b) Apply direct pressure to the injury c) Compress pressure points between the injury and the heart d) Bandage the area # Secondary hemorrhage appears in: a) 7-14-days  b) Within 6 hours c) Due to Slipping of ligature d) Bleeding disorders # Clotting capacity of blood after storage: a) Improves  b) Not altered if kept at 4°C c) Not altered if used within 3 days d) Diminishes # The sodium excretion shut down following trauma remains for: a) 6 hours  b) 24 hours c) 36 hours  d) 48 hours # A patient of burns should be given: a) 5% dextrose  ...

# Buccal surface of posterior teeth are wider than lingual surface mesiodistally except in: a) Maxillary second premolar b) Mandibular second premolar c) Maxillary first molar d) Mandibular first molar The correct answer is C. Maxillary First Molar.  A measurement of the crown buccolingually and mesial to the buccal and lingual grooves is greater than the measurement on the portion of the crown that is distal to these developmental grooves. Also, a measurement of the crown immediately lingual to contact areas mesiodistally is greater than the measurement immediately buccal to the contact areas. Thus, it is apparent that the maxillary first molar crown is wider mesially than distally and wider lingually than buccally. Reference:  WHEELER’S Dental Anatomy, Physiology, and Occlusion, 10th Edition, Page 172

1. The jugulodigastric lymph node is the most common lymph node involved in tonsillar infections and oral cancer, and hence, should be thoroughly examined while examining the cervical group of lymph nodes. 2. Many drugs can produce gingival swelling – most commonly implicated are phenytoin, ciclosporin and calcium channel blockers. 3. The most common salivary lesion causing a swelling is the mucocele, usually caused by extravasation of saliva from a damaged minor salivary gland duct and seen in the lower labial mucosa, sometimes caused by retention within a gland. 4. Sialadenitis most commonly manifests in the parotid gland (parotitis). The organisms most commonly isolated from bacterial ascending sialadenitis are Alpha-haemolytic streptococci, such as Streptococcus viridans and Staphylococcus aureus , the latter frequently being penicillin-resistant. 5. Amalgam tattoo is the most common cause of a single patch of macular blue-black pigmentation, does not change significantly i...

Dental Practice management is a broad topic that includes setting up a dental clinic, hiring of adequate number of staffs that are well versed with the work they are supposed to do in an efficient manner and in perfect harmony to increase the net revenue of the clinic, materials supply management, patients' record management, patients' appointment management, cashflow management and many more. Let's discuss about the importance of appointments for better efficiency and maximizing the revenue in least possible chairside time. Not every dentist is well acquainted with the managerial skills that is necessary to run a dental clinic. Some acquire it naturally on the go after establishing a dental clinic and some struggle for years due to lack of the skill and experience too many patients in some particular days and not a single patient some unfortunate day. More often than not, once a dental clinic is well-established and with good track record of providing good dental care, ...

# The rate of absorption of sugars by the small intestine is highest for: A. Pentoses B. Disaccharides C. Polysaccharides D. Hexoses # Which one of the following enzymes use NADP as conenzyme? A. Glyceraldehyde 3 phosphate dehydrogenase B. Lactate dehydrogenase C. Glucose-6-phosphate dehydrogenase D. Beta hydroxy acyl coA dehydrogenase

Photographs in dentistry are of great importance because they tell a lot about the patient's dental conditions at once. As the saying goes, "a picture is worth a thousand words", that holds true in dentistry. Some advantages of photographic record in dentistry are: i) For diagnosis and treatment planning ii) To keep records of patients iii) To compare pre treatment and post treatment results iv) To communicate with dentists all over the world v) In preparing case studies and reports Mastering photography in dentistry is a time consuming skill that develops over years. But few perspectives and views that provide a great detail and are useful in dental diagnosis (Orthodontics in particular) are listed below. 1. Profile view - to evaluate skeletal abnormalities and concavity/convexity  of face 2. Frontal view at rest - to evaluate face form, facial asymmetry, lower facial height, lip competency 3. Frontal view Smiling - to evaluate smile, midline shift, dias...

NOTE: It has been proved that you will retain more of what you study if you study first and then test yourself immediately. For that, First Watch this Video and Study all the MCQs, and then Test yourself by taking the Quiz below. # Early movement for surgery following ankylosis is: A. Unimportant B. Indicated only when ankylosis is one sided C. Desirable D. Harmful # All of the following are approaches to TMJ EXCEPT: A. Gillie's temporal approach B. Alkayat-Bramley periauricular incision C. Hind's retromandibular approach D. Endaural approach