Acid conditioning of enamel and eroded dentine:
A. Provides an none traumatic, conservative clinical approach to the bonding of restorative  material
B. Is a traumatic approach to bonding materials
C. Is not a safe and simple method of bonding
D. Bonding fails to produce a highly significant retention and good marginal integrity and clinical  durability
E. None of the above

1 Answer

Answer :

A. Provides an none traumatic, conservative clinical approach to the bonding of restorative  material

Related questions

Description : for dental caries to progress in dentine, A. the dentine must contain soluble collagen B. enamel must contain glycoproteins C. diet must contain simple carbohydrate D. diet must contain polysaccharides E. pulp must contain complement

Last Answer : C. diet must contain simple carbohydrate

Description : For dental caries to progress in dentine, A. The dentine must contain soluble collagen B. Enamel must contain glycoproteins C. Diet must contain simple carbohydrate D. Diet must contain polysaccharides E. Pulp must contain complement

Last Answer : C. Diet must contain simple carbohydrate

Description : The main purpose of finishing the enamel walls is, A. Remove loose enamel rods B. Provide a better surface for the adoption of restorative material

Last Answer : A. Remove loose enamel rods

Description : A patient comes to you with medium pain of tooth filled with Composite resin as a result of cold or hot drinks, what will your initial management be, A. Remove the restorative material and ... material and place a sedative temporary material C. Place a coat of bonding material on the old composite

Last Answer : B. Remove the restorative material and place a sedative temporary material

Description : With dentin bonding agent, you apply: A. First acid etching to dentine and then bonding agent B. Bonding agent directly to dentine C. Chelating agent (EDTA) and bonding agent

Last Answer : A. First acid etching to dentine and then bonding agent

Description : Calculus attaches to teeth surfaces by: A. Acquired pellicle B. Interlocking to the crystals of the tooth C. Penetrated into enamel and dentine D. Mechanical interlocking E. All of the above

Last Answer : E. All of the above

Description : The minimal labial tooth reduction for satisfactory aesthetics with porcelain fused to metal crown is, A. 1mm B. The full thickness of enamel C. 1.5 mm D. 2.5mm E. One third of the dentine thickness

Last Answer : C. 1.5 mm

Description : In preparing a very small proximal amalgam cavity on a molar tooth what would consider, A. Extend the cavity to the gingival margin B. Extend the cavity beyond the contacts areas C. Achieve at least 2mm in dentine D. Extend cavity just beyond dento enamel junction

Last Answer : D. Extend cavity just beyond dento enamel junction

Description : While you finish a class I cavity, the enamel is sound but you notice a brown line in the dentine and on the Dento-enamel junction, what is your response, A. You leave it and complete the final restoration B. You extend your preparation and clean it C. You apply a cover of varnish

Last Answer : B. You extend your preparation and clean it

Description : Two conditions of enamel facilitate the post eruptive uptake of fluoride: A. Hyper mineralisation and surface dentine B. Surface demineralisation and hypo mineralisation C. Dental fluorosis and enamel opacities

Last Answer : B. Surface demineralisation and hypo mineralisation

Description : The surface of enamel rod prisms in permanent teeth is: A. Perpendicular to the outer surface of the tooth B. Parallel to the outer surface of the tooth C. Parallel to enamel contour D. Parallel to enamel-dentine contour

Last Answer : A. Perpendicular to the outer surface of the tooth

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 : Which is the only dental tissue that loses its formative cells as it matures: A. Enamel B. Dentine C. Pulp D. Cementum

Last Answer : A. Enamel

Description : Using fluoride in the root surface caries is to protect, A. Enamel B. Dentine and cementum C. Cuticle

Last Answer : B. Dentine and cementum

Description : For lower premolars, the purpose of inclining the handpiece lingually is to, A. Avoid buccal pulp horn B. Avoid lingual pulp horn C. Remove unsupported enamel D. Conserve lingual dentine

Last Answer : A. Avoid buccal pulp horn

Description : Why do you itch enamel for composite restorations: A. To increase surface area B. To decrease surface area C. Does not really change the surface area D. Increase the chemical bonding capability E. Decrease the chemical bonding capability

Last Answer : A. To increase surface area

Description : In regard to the enamel surface: A. It is a perfect substance for bonding B. It does not conform to the bonding requirements C. It is the most inorganic, rough part D. It is free from contamination and roughness E. None of the above

Last Answer : B. It does not conform to the bonding requirements

Description : When preparing a class III cavity for composite restoration; in which situation should acid itching be used: A. Always should be performed to minimise marginal leakage B. Should not be ... extra retention is required D. Only in situations where cavity is shallow to avoid pulp irritation

Last Answer : A. Always should be performed to minimise marginal leakage

Description : Where do Maryland bridges lose retention often: A. Resin-metal B. Resin enamel C. Resin layer

Last Answer : A. Resin-metal

Description : The MOST common cause of gingiva irritation is: A. Calculus B. Plaque C. Caries D. Restorative material

Last Answer : B. Plaque

Description : The most significant finding in clinical evaluation of parotid mass may be accompanying,** A. Lympha adenopathy B. Nodular consistency C. Facial paralysis D. Slow progressive enlargement E. Xerostomia

Last Answer : C. Facial paralysis

Description : The effectiveness of the acid etch is dependent on which of the following factors: A. Material must be used to clean the surface of the tooth prior to etching B. The effectiveness of the itchant C. The chemical and physical nature of the tooth D. The area and surface of the enamel to be itched

Last Answer : C. The chemical and physical nature of the tooth

Description : Which of the following is true regarding preparation of custom tray for elastomeric impression: a. Adhesive is preferred over perforation. b. Perforation provides adequate retention c. Adhesive is ... before procedure d. Perforations are not made in the area over the prepared tooth .

Last Answer : a. Adhesive is preferred over perforation.

Description : .Which of the following is true regarding preparation of custom tray for elastomeric impression: A. Adhesive is preferred over perforation B. Perforation provides adequate retention C. Adhesive is ... immediately before procedure D. Perforations are not made in the area over the prepared tooth

Last Answer : A. Adhesive is preferred over perforation

Description : What is the MOST significant clinical feature of periodontal disease:** A. Bleeding B. True pocket formation and apical migration of attached gingiva

Last Answer : B. True pocket formation and apical migration of attached gingiva

Description : What is the best way to cement Maryland bridge, A. GIC B. Resin C. High compression restorative resin D. Zinc Phosphate cement E. Oxide Zinc and eugenol

Last Answer : B. Resin

Description : Which one of this restorative methods will be LEAST compromised by a core, A. Amalgam B. Composite C. GIC D. Cast gold

Last Answer : D. Cast gold

Description : What is an important requisite for fillers in dental composite restorative resins in load bearing areas: A. Sub micro sized particles B. High coefficient of thermal expansion C. High in content (High filler)

Last Answer : C. High in content (High filler)

Description : .In regard to the glass of quartz particles of filling restorative resin; the microfill resins tend to have, A. A higher coefficient of thermal expansion and a higher crashing strength B. ... and a higher crashing strength D. A lower coefficient of thermal expansion and a lower crashing strength

Last Answer : B. A higher coefficient of thermal expansion and a lower crashing strength

Description : Tissue conditioning materials: (Silicon lining materials) A. are more resilient than plastic acrylic B. can minimise any bacterial colonies

Last Answer : A. are more resilient than plastic acrylic

Description : Several applications have been suggested to increase the effectiveness of prophylactic application of topical fluoride which include all EXCEPT: A. Increase Fluoride ions in solution increase concentration B. Increase ... D. Pre-treat enamel with 0.5% phosphoric acid E. Use NH4F instead of NaF

Last Answer : B. Increase PH of fluoride

Description : Several approaches have been suggested to increase the fixation of professionally applied topical fluoride, which of the following statements IS INCORRECT regarding increasing the fixation? A. Increase concentration of ... with 0.5% phosphoric acid E. Use NH4F rather than NaF at a lower PH

Last Answer : B. Raise the PH of the fluoride solution

Description : Pin Restoration with which material has the best retention:  A. Amalgam  B. Gold inlay  C. Composite  D. Glass Ionomer 

Last Answer : C. Composite 

Description : After the initial development stage and in the absence of pathology, the size of the pulp chamber has been reduced by, A. Deposition of primary dentine B. Deposition of secondary dentine C. Reparative dentine D. Pulp fibrosis E. Deposition of reparative dentine

Last Answer : B. Deposition of secondary dentine

Description : Which of the following ACID property states that the system must go from one known state to another and that the system integrity must be maintained? a) Atomicity b) Consistency c) Isolation d) Durability

Last Answer : Consistency

Description : Which of the following is the hardest substance in the human body? (1) Bone (2) Enamel (3) Dentine (4) Nail

Last Answer : (2) Enamel Explanation: Tooth enamel, along with dentin, cementum, and dental pulp is one of the four major tissues that make up the tooth in vertebrates. It is the hardest and most highly mineralized substance in the human body. It has approximately 95% calcium concentration.

Description : Main part of tooth is (a) Enamel (b) Dentine (c) Pulp (d) None

Last Answer : (b) Dentine

Description : Ivory of teeth is (a) Enamel (b) Dentine (c) Both (d) None

Last Answer : (b) Dentine

Description : Hardest part of tooth is (a) Dentine (b) Enamel (c) Pulp (d) None

Last Answer : (b) Enamel

Description : Which of the following is the hardest substance in the human body ? (1) Bone (2) Enamel (3) Dentine (4) Nail

Last Answer : Enamel

Description : Loss of sensation in the lower lip may be produced by,CHECK ADC M07 A. Bell’s palsy B. Traumatic bone cyst C. Trigeminal neuralgia D. Fracture in the mandible first molar region E. Ludwig’s angina

Last Answer : D. Fracture in the mandible first molar region E. Ludwig’s angina

Description : Which of the following statements about the coagulation cascade is/are true? A. The intrinsic pathway of coagulation is the predominant pathway in vivo for hemostasis and coagulation. ... coagulation abnormalities. D. Deficiencies of factor XII cause severe clinical bleeding syndromes.

Last Answer : Answer: AC DISCUSSION: Although it was previously held that two somewhat distinct pathways existed for the activation of the coagulation cascade, it is now recognized that the predominant ... bleeding. This further emphasizes the secondary role that the intrinsic pathway plays in coagulation

Description : Etching a hybrid glass ionomer-composite a. is necessary for composite resin bonding b. is not necessary for composite resin bonding c. is necessary for adding a glass ionomer cement for repair ... glass ionomer cement for repair e. a 3-5 second etch with 10% phosphoric acid is recommended

Last Answer : b. is not necessary for composite resin bonding

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 : Following calcium hydroxide pulpotomy, the dentist would expect dentine bridge to form at, A. The exact level of amputation B. Level somewhere below the amputation C. Half way between amputation and apex D. At the apical region of the tooth

Last Answer : B. Level somewhere below the amputation

Description : During mouth preparation for RPD on tooth adjacent to edentulous area. There is dentine exposure: A. Restoration is required B. Proceed with rest seat preparation and fabrication if involved area is not more than 2mm

Last Answer : A. Restoration is required

Description : The gingival portion of natural teeth differs in colour from the incisal portion because the : A. Lighting angle is different B. Gingival and incisal portions have different fluorescent qualities C. Gingival area has a dentine background D. Incident light is different

Last Answer : C. Gingival area has a dentine background

Description : On applying hypertonic fluid on the dentine, the transmission of fluid through tubules will be: A. From inside to outside B. From outside to insid

Last Answer : A. From inside to outside