Description : The lamina dura is seen on periapical radiographs as:CHECK A. Usual radiolucency between tooth root and surrounding bone as a thin white line. B. Cribriform plate of bone making the ... bone consistent with a healthy periodontal status D. Pattern of radiopaque lines in supporting alveolar bone
Last Answer : B. Cribriform plate of bone making the tooth socket
Description : The lamina dura is absent in which condition: A. Von Recklinghausen B. Paget’s C. Periapical granuloma
Last Answer : B. Paget’s
Description : Odontogenic cysts develop from the following structures except: A. Reduced enamel epithelium of tooth crown B. Dental lamina dura C. Epithelium trapped after sutures D. ertwig’s root sheath
Last Answer : C. Epithelium trapped after sutures
Description : Absence of clearly defined crystal lamina dura is because: A. Pathognomonic of periodontal disease B. Indicative of attachment loss C. Associated with periodontal pocket D. Commonly related to radiograph angulation
Last Answer : D. Commonly related to radiograph angulation
Description : The absence of lamina dura in radiographs is a feature of all of these except for:** A. Paget’s disease (hyperphosphatasia) B. Hyperparathyroidism C. Fibrous dysplasia (como querubinismo) D. Osteogenesis imperfecta E. Hyperthyroidism
Last Answer : E. Hyperthyroidism
Description : Tetracycline hydrochloride conditioning of root surfaces in periodontal surgery is to: A. Sterilise the root surface B. May enhance binding of fibronectin and fibroblast C. Aids in re-mineralising the root surface D. Assist the biding of lamina dura E. Prevents post operative infections
Last Answer : B. May enhance binding of fibronectin and fibroblast
Description : Bone is characterised by:** A. Haversian canal around bony canals B. Irregularly arraigned tubulae
Last Answer : A. Haversian canal around bony canals
Description : What is the most important function of periodontal ligament: A. Keep teeth in the socket B. Protect alveolar bone C. Provide nutrition
Last Answer : A. Keep teeth in the socket
Description : Which of the following is NOT TRUE in regard to lateral periodontal cyst** A. It is more common in anterior region B. It occurs more in maxilla than mandible C. Probable origin is from ... . Encountered in the cuspid-premolar region of the mandible, derived from the remnants of the dental lamina
Last Answer : A. It is more common in anterior region B. It occurs more in maxilla than mandible
Description : What contraindicates pulp capping: A. Accidental exposure on vital young molars B. When inflammation of radicular pulp is already present C. When roots are greatly curved and tortuous D. When anterior tooth is vital and immature with wide open apices E. None of the above
Last Answer : B. When inflammation of radicular pulp is already present
Description : When immature permanent molars have been treated with Ledermix pulp capping, the most probable pathology is, A. Chronic inflammation of the pulp B. Necrosis of the pulp
Last Answer : B. Necrosis of the pulp
Description : Which of the following terms refers to the shaft of the long bone? a) Diaphysis The diaphysis is primarily cortical bone. b) Epiphysis An epiphysis is an end of a long bone. c) Lordosis ... an increase in lumbar curvature of spine. d) Scoliosis Scoliosis refers to lateral curving of the spine.
Last Answer : a) Diaphysis The diaphysis is primarily cortical bone.
Description : Two central incisors on a radiograph are showing with what looks like eye drop radiolucency. You decided to start endodontic treatment on these teeth but when you tried to open access to the root ... and start a permanent restoration. B. Start systemic antibiotic C. Try to ream and file canals
Last Answer : C. Try to ream and file canals
Description : Why do you take x-rays at different horizontal angulations A. To find more canals B. Tofind more foramina
Last Answer : A. To find more canals
Description : A child has less than the normal number of teeth, the mandibular lateral incisor is larger than usual, on x rays it shows with two roots and two roots canals; your diagnosis is:** A. Dilaceration B. Gemination C. Fusion D. Concrescence E. Taurodontism
Last Answer : C. Fusion
Description : The length of the tooth is established by: A. Good undistorted pre-operative x ray B. Adequate coronal access to all canals C. Adjustable endo millimetre ruler D. Definite repeatable plane of reference to anatomical landmark on tooth E. All of the above
Last Answer : A. Good undistorted pre-operative x ray
Description : To achieve optimum cavity preparation, which of the following factors of internal anatomy must be considered in root canal treatment: A. Outline form B. The age and shape of pulp chamber; in ... root canals. C. Internal external relationship D. Intra-coronal preparation E. None of the above
Last Answer : B. The age and shape of pulp chamber; in addition to the direction of individual root canals.
Description : X rays are used in endodontic treatment to: A. Aid in the diagnosis of periapical hard tissue lesion B. Determine the number, location, shape, size and direction of roots and root canals C. Confirm ... root canals D. Evaluate the adequacy of the complete root canal filling E. All of the above
Last Answer : E. All of the above
Description : What is true in regard to lateral mandibular incisors A. 20% have 2 canals with one foramen B. 20% have 2 canals with two foramina C. 40% have two canals with 10% ending in two foramina D. 40% have two canals with only one ending in two foramina
Last Answer : D. 40% have two canals with only one ending in two foramina
Description : Which of the following is a radiographic feature of dentino-genesis imperfecta: A. Small pulp chambers and root canals, normal enamel B. Enamel is missing but dentine formation is normal C. Enamel and dentine show disturbances D. Pulp is normal but dentine is abnormal
Last Answer : A. Small pulp chambers and root canals, normal enamel
Description : Mesiobuccal root of maxillary first molars MOST COMMONLY have: A. One canal with one foreman B. One or two canals with one foreman C. Two canals with one foreman D. Two canals with two foramen
Last Answer : D. Two canals with two foramen
Description : The emergency treatment for painless necrotic pulp is: A. Drainage through canals B. None
Last Answer : A. Drainage through canals
Description : The cause of development of lateral canals is: A. Cracks in Hertwig’s epithelial root sheath
Last Answer : A. Cracks in Hertwig’s epithelial root sheath
Description : .Lateral canals are usually found at: A. The middle of the root B. First third of the root close to the crown C. The apical third
Last Answer : C. The apical third
Description : The most common cause of RCT “Root Canal Treatment” failure is: A. The canal not filled completely (Short obturation) B. Over filled canals
Last Answer : A. The canal not filled completely (Short obturation)
Description : . The most widely used crude topping column in refineries is the__________ column. (A) Bubble-cap (B) Packed bed (C) Fluidised bed (D) Perforated plate
Last Answer : (A) Bubble-cap
Description : Perforated plate towers are unique for solvent extraction because, they provide (A) Higher contact area (B) Better contact of the phase (C) Repeated coalescence & redispersion of the drop phase (D) None of these
Last Answer : (C) Repeated coalescence & redispersion of the drop phase
Description : What is the difference between compact bone and spongy bone? -Biology
Last Answer : answer:
Description : Of the following terms, which describes a condition characterized by abnormal spongy bone formation around the stapes? a) Otosclerosis Otosclerosis is more common in females than males and is ... perforation. d) Otitis externa Otitis externa refers to inflammation of the external auditory canal.
Last Answer : a) Otosclerosis Otosclerosis is more common in females than males and is frequently hereditary.
Description : What is the primary consideration in providing nutrition/dietary counselling to a patient: A. Secure details of patient’s eating habits B. Have the patient to fill in a diet survey C. Eliminate sugar from diet
Last Answer : B. Have the patient to fill in a diet survey
Description : Of all the factors that increase the resistance of teeth to dental caries, THE MOST EFFECTIVE is,** A. The general nutrition of a child during the period of tooth formation B. The ... eruption D. Sufficient intake of calcium and Vitamin D during the period of enamel mineralization and maturation
Last Answer : B. The intake of fluoride during the period of enamel mineralization and maturation
Description : What is the role of Haversian canals in compact bone? -Biology
Description : A 7 years-old child has class I malocclusion, slight version of maxillary class III, adequate arch length. What is your management: A. Oral screen B. Head cap therapy C. Inclined plane on mandibular anterior teeth D. Hawley plate E. Expansion screw plate
Last Answer : C. Inclined plane on mandibular anterior teeth
Description : What is the Bilaminar Zone:** A. Formed of, or having, two laminae, or thin plates. Which is the distal attachment of superior hard lateral plate B. A vascular, innervated tissue that plays an important role in allowing the condyle to move foreward
Last Answer : B. A vascular, innervated tissue that plays an important role in allowing the condyle to move foreward
Description : The adhering of tissues on the surgical electrode usually means: A. Current intensity is too high B. Current intensity is too low C. Dispersion plate not applied to patient D. None of the above
Last Answer : B. Current intensity is too low
Description : The use of nickel chromium in base plate should be judiciously considered because: A. A significant number of females are allergic to nickel B. A significant number of female are allergic to chromium C. A significant number of males are allergic to nickel
Last Answer : A. A significant number of females are allergic to nickel
Description : Why do you construct a lower removable partial denture with lingual bar: A. It is used when the space between raised floor, mouth and gingival margin is minimal B. Plaque accumulation is less than with lingual plate C. Should be made thicker when short
Last Answer : B. Plaque accumulation is less than with lingual plate
Description : A teenager has swelling involving his upper lip, the corner of his nose and a region under his left eye. The swollen area is soft, fluctuant and pointed on the labial plate under his ... and test vitality of his teeth E. Write prescription for antibiotics and delay treatment until swelling is
Last Answer : A. Refer him to physician IV abs riesgo de thrombosis de seno cavernoso
Description : Basal cell carcinoma is characterised by, a.Rapid growth and metastasis. b.Local cutaneous invasion. c. Inability to invade bone. d.Poor prognosis. e.Radiation resistance. f.Can not metastasise to the bone.
Last Answer : b.Local cutaneous invasion.
Description : As far as localised alveolar osteitis is concerned; which one of the following is true? A. The incidence in the mandible and maxilla is similar B. The prophylactic prescription of antibiotics ... and irrigation is mandatory E. Zn oxide eugenol and alvogyl dressing promote a rapid bone growth
Last Answer : C. Excessive fibrinolysis is the likely aetiology
Description : What is NOT related to the normal aging process? A. Progressive bone loss B. Reduced elasticity of muscles C. Decreased elasticity of the skin D. Lower pain threshold
Last Answer : D. Lower pain threshold
Description : The most desirable outcome of endodontic treatment is, A. The healing of the alveolar bone B. The deposition of cementum at the apex C. Formation of fibrous capsule around the apex
Last Answer : B. The deposition of cementum at the apex
Description : The biologic width is the distance between the A. Base of the gingival sulcus and the crest of alveolar bone B. Free gingival margin and the base of the gingival sulcus C. ... gingival margin and the mucogingival junction E. Free gingival margin and the base of connective tissue attachment
Last Answer : A. Base of the gingival sulcus and the crest of alveolar bone
Description : The MOST likely factor contributing to tooth eruption is:** A. The growing root B. Bone growth C. Vascular pressure D. The developing periodontal ligament
Last Answer : A. The growing root
Description : What is TRUE in regard to Basal Cell Carcinoma A. Metastasis is common B. Erodes bone C. More common in oriental races D. Cannot occur in oral mucosa according to definition
Last Answer : D. Cannot occur in oral mucosa according to definition
Description : Which of the following is not a property of Fluoride: A. Crosses placental barrier B. Deposits in bone C. Excretes rapidly by kidney D. Bacteria static E. Produces extrinsic tooth stain
Last Answer : E. Produces extrinsic tooth stain
Description : All of the following are requirements of mucoperiosteal flap except of: A. Base is wider than free margin B. Mucous membrane is carefully separated from periosteum C. Base has an adequate ... defect that will be present at conclusion of operation E. Mucoperiosteum is carefully separated from bone
Last Answer : B. Mucous membrane is carefully separated from periosteum
Description : What is NOT TRUE about occlusal trauma: A. Cemental tears B. Bone loss C. Mobility D. True pocket formation E. Bleeding in periodontal ligament
Last Answer : D. True pocket formation
Description : A very quick and wide separation of teeth causes: A. Gingival inflammation B. Vasodilation C. Wider spaces D. Necrosis of bone
Last Answer : A. Gingival inflammation
Description : All of the following are properties of fluoride except: A. Crosses the placental barrier B. It deposits rapidly in bone C. It is excreted rapidly by kidneys D. It is bacteriostatic E. It produces extrinsic tooth stain
Last Answer : E. It produces extrinsic tooth stain