NBDHE Practice Questions with 100% Correct Answers 2023

NBDHE Practice Questions with 100% Correct Answers 2023 Hepatitis - Correct answer-Virus that is most resistant to chemical and physical agents Anteriorly - Correct answer-When the patient is opened widely, the articular disk moves Odontoblasts - Correct answer-These are injured during the overheating of an amalgam polishing Juvenile perio - Correct answer-Unique microflora and defect in PMN function are associated with? Cannot adapt to curved surfaces - Correct answer-Serious limitation of hoes Palatal - Correct answer-Longitudinal developmental grooves are likely on which root surfaces of a maxillary first premolar? Rubella - Correct answer-Virus that is most likely to pass the placenta and produce congenital defects in the fetus Public endorsements by local leaders - Correct answer-Most likely to result in the adoption of a community water fluoridation Increased fluoride stored in bones - Correct answer-At age 11, person who lived in a non-fluoridated community since birth moves to an area where the water contains 10ppm of fluoride. At age 35 what is he most likely to have? They cannot be synthesized in the body at a sufficient rate to meet the body requirements - Correct answer-Why are certain amino acids termed essential? Resistance to physical and chemical agents - Correct answer-Why are bacterial spores a problem in sterilization for instruments and equipment? Baseline program data - Correct answer-How to measure the extent to which a dental health program is achieving their objectives Prevalence - Correct answer-The amount of untreated dental caries in a population at a given time is the caries... Has a stable energy bond with calcium - Correct answer-Why is fluorapatite resistant to tooth decay? Bone - Correct answer-The degree of mineralization of normal cementum is approximately that of? Lack of dimensional stability - Correct answer-What is a disadvantage of an impression obtained with a hydrocolloid impression material? New crevicular epithelium - Correct answer-Periodontal regeneration is healing by formation of? Interview - Correct answer-The most effective method for surveying indigent people in a community about oral hygiene practices C and K - Correct answer-Deficiency in these vitamins can cause a patient have abnormal hemostasis Radial - Correct answer-Most common artery used for determining pulse rate in a conscious adult B lymphocytes - Correct answer-Humoral immunity is mediated by? 9 - Correct answer-By standing three meters instead of one meter from the source of radiation, the resultant exposure is decreased by a factor of? Moisture contamination during mixing or condensation of the amalgam - Correct answer-Excessive delayed expansion of an amalgam restoration is caused by? Adjust the chair to a more upright position - Correct answer-When treating a patient with a compromised pulmonary function, the dental hygienist should? Prevent loss of arch space - Correct answer-A space maintainer placed in the mandibular arch of an 8 year old child usually serves to? Epi - Correct answer-A sympathomimetic drug that can cause an increase in blood pressure Hilus - Correct answer-Root of the lung, containing bronchus, pulmonary veins and arteries, nerves and lymphatics enters the lungs at? Cuboidal epithelium with extensive keratinization - Correct answer-The epithelial attachment consists of? Coronary occlusion - Correct answer-During a prophy, a patient experiences a sudden loss of breath, labored breathing, cold clammy skin and pain radiating to the left shoulder and arm. What is most likely happening? Collagenous tissue - Correct answer-Resilience and firmness of the gingiva is due primarily to? Short, even strokes followed by longer strokes - Correct answer-Which sequence of working strokes is most effective and efficient for performing root planing with curets? 2.75 - Correct answer-Max diameter of x-ray beam at the entry of the skin surface should be no greater than how many inches? Long wavelength - Correct answer-Rays that are most apt to be absorbed by skin are? Dental plaque - Correct answer-Primary cause of inflammatory periodontal disease in diabetic patients 2 grams one hour prior to dental procedure - Correct answer-AHA guidelines for premed with penicillin Bacteroides sp. - Correct answer-Collagenase-producing microbes associated with chronic perio Tetracycline stain fluoresces under UV light - Correct answer-How to differentiate between fluorosis and tetracycline stain Insufficient washing time - Correct answer-A yellowish-brown radiograph results from using At the coronal edge of the JE - Correct answer-Where does the working stroke in root planing ideally begin? X-rays strike matter - Correct answer-Secondary radiation originates when? Provides essential fatty acids - Correct answer-Lipid is required in the average diet because it? Areas of the mandible and the maxilla that are too large to show on a PA - Correct answer-A lateral jaw radiograph is most commonly used for observing? Salicylates - Correct answer-Which drug raises pain thresholds without impairing alertness or judgment? Lighter - Correct answer-If source-to-film distance were increased without changing mA or exposure time, the resultant radiograph would be? Digitally support the free gingiva - Correct answer-To facilitate uniform removal of crevicular epithelium during soft tissue curettage, the operator should?