Endodontics: Principles and Practice Questions 100% ACCURATE GRADE A+ GUARANTEED

D. Stochastic The major biorisk from x-rays used for endodontic imaging is: a. Deterministic b. Traumatic c. Cyclic d. Stochastic a. Smaller area for image capture A disadvantage of digital solid-state sensors for periapical imaging is the: a. Smaller area for image capture b. Projection of double images c. Greater propensity for dimensional distortion d. Inferior diagnostic sensitivity to dental film a. Are more durable In comparison with handheld x-ray units, wall-mounted x-ray units: a. Are more durable b. Have greater portability c. Produce less image distortion d. Process digital images more quickly b. Increase biorisk to the radiographer Handheld x-ray units: a. Improve image resolution b. Increase biorisk to the radiographer c. Require shorter exposure times d. Are used only with digital sensors d. Technique used to localize the buccal and lingual position of objects Tube shifting is a a. CBCT technique that improves image resolution b. A method of directing the rotational path in a CBCT scanner c. Beam alignment method that minimizes root canal length distortion d. Technique used to localize the buccal and lingual position of objects b. higher In CBCT scanning, generally the smaller the voxel size, the __________ the image resolution. a. darker b. higher c. lower d. worse b. Compromise diagnostic image quality "Beam hardening" effects seen on CBCT reconstructions a. Occur when the mA settings are high b. Compromise diagnostic image quality c. Improve the outlines of endodontic treated canals d. Occur less with restorative materials in the FOV b. The recommendations are evidence based. The AAE/AAOMR joint position paper on the CBCT applications for endodontic patient care is highly valued because: a. Many endodontists follow the recommendations. b. The recommendations are evidence based. c. The use of CBCT images can shorten the duration of RCT treatment. d. CBCT images are the most definitive for posttreatment follow up evaluations. b. Periapical intraoral imaging The imaging procedure of choice for most endodontic evaluations is: a. Limited CBCT FOV with a large voxel size b. Periapical intraoral imaging c. Any size CBCT FOV with high resolution d. The procedure favored by the treating endodontist b. Apical radiolucency around a root with a restorative post Consistent CBCT findings for a VRF include all of the following EXCEPT: a. Loss of bone at the mid root level with intact bone apical and coronal to the defect b. Apical radiolucency around a root with a restorative post c. Absence of cortical bone in the 3D multiplanes d. Actual visualization of the VRF in the CBCT multiplanes a. HRF CBCT is a preferred imaging modality for evaluating a. HRF b. Carious dental lesions approaching the pulp c. Posttreatment recalls of more than 5 years d. All maxillary first molars in need of endodontic treatment d. Periosteal elevator All of the following are normally included in an examination kit EXCEPT: a. Mouth mirror b. Periodontal probe c. Cotton pliers d. Periosteal elevator e. Dental explorer c. Retro-pluggers Which of the following is not found in a typical nonsurgical treatment cassette? a. DG16 explorer b. Anesthetic syringe c. Retro-pluggers d. Cotton pliers e. Plastic instrument a. Dental caries detection A CBCT scan is recommended for examining all the following conditions EXCEPT: a. Dental caries detection b. Internal resorption c. External resorption d. Traumatic injuries e. Treatment planning for apical surgery e. All of the above Rubber dam isolation... a. Provides a clean operation field b. Improves visualization of the tooth to be treated c. Prevents aspiration of dental instruments d. Limits the visibility to the floor of the mouth e. All of the above c. formocresol All of the following irrigants are used for nonsurgical root canal treatment EXCEPT: a. NaOCl b. EDTA c. formocresol d. Chlorhexidine e. Sterile saline b. The placement of a retro-filling material to seal the root canal apically Endodontic surgery "apicoectomy" includes: a. Resection of an entire root b. The placement of a retro-filling material to seal the root canal apically c. The use of NaOCl to disinfect the osteotomy site d. Stimulation of bleeding to improve visualization and placement of a retro-filling material c. Location and negotiation of root canals Dental operating microscopes are beneficial for: a. The prevention of carpal tunnel syndrome in the operator b. Decreased illumination of the surgical field c. Location and negotiation of root canals d. Low level magnification e. Nonsurgical treatment only d. Panoramic x-ray Which of the following radiographic methods is not commonly used in endodontic diagnosis? a. Periapical radiographs b. Bitewings c. CBCT d. Panoramic x-ray e. Only a and c Surgical operating microscopes are superior to dental loupes in a. Provides higher magnification b. Allowing minimal illumination c. Minimizing neck strains d. All of the above e. Only a and c d. Apex locator All of the following can be utilized to locate the canal orifices EXCEPT: a. DG16 explorer b. Mirror c. Dental operating microscope d. Apex locator e. Caries detection dye a. NaOCl Which of the following irrigants has the ability to dissolve pulp tissue and disinfect the root canal system? a. NaOCl b. Ca(OH) 2 c. EDTA d. Chlorhexidine e. Formocresol c. Long canal with small diameter and curvature What type of canal is prone to ledge formation during instrumentation? a. Short and curved canal b. Short canal with small diameter c. Long canal with small diameter and curvature d. Long canal with large diameter and curvature b. Small diameter instrument with minimal taper What kind of instrument is less likely to ledge the canal? a. Large diameter instrument with an increased taper b. Small diameter instrument with minimal taper c. NiTi instrument with a cutting tip d. Stainless steel instrument with a noncutting tip b. Inner wall Which side of the canal should a thin space be created with ultrasonics in preparation for instrument retrieval? a. Outer wall b. Inner wall c. Thickest wall d. Thinnest wall b. To loosen the fractured instrument What is the objective of the root canal preparation for instrument retrieval? CONTINUED...... a. To visualize the fractured instrument