Dental Assistant Practice Exam With Complete Solution A permanent Dentition consists of how many teeth - 32 Which teeth are sometimes called the "eye" teeth - Canines Which proximal surface of a tooth is closest toward the midline of the body` - Mesial A permanent dentition consists of how many premolars - 8 When a mouth is divided into fourths, the parts are referred to as - Quadrant Using the Universal System of tooth designation, what tooth is # 12 - Maxillary left first premolar Using the Internat ional standards Organization system of tooth recording, which tooth is # 25 - Maxillary left second premolar What is the structure that connects cementum to the alveolar bone - Periodontal ligament A gold crown is marked by: - Diagonal lines through the crown A dental assistant is preparing to chart a new patient's treatment plan for the doctor. Treatment provided in a previous dental office should be charted in what color - Black Two red vertical lines drawn between the upper central incisors on a pati ent chart would indicate: - Diastema The recommended technique for determining a patient's pulse or respiration rate is to : - Measure for 30 seconds, then multiply by 2 In Order to determine how much to inflate a blood pressure cuff for an accurate read ing, a dental assistant measures the patient's BPM Brachial rate and adds to determine the inflation level in mm Hg. - 40 An average adult respiration rate is Breaths per minute - 10-20 What is the normal pulse rate in a resting adult - 60-100 bpm Standard practice provides, and some state laws require, that a signed privacy policy be kept in a patient's file for a minimum of - some state law set the minimum at 5 years Which of the following is not a parts of a dental examination - Health history r eview What classification of decay is located on the gingival third on the facial or lingual surfaces of teeth - Class V - smooth surface decay While examining a patient, a dentist says he sees Class IV decay. Which of the following teeth would he be look ing at - Incisors and canines are the only teeth to be diagnosed with class IV Decay The area also known as the neck of the tooth is more appropriately called the : - CEJ Cementoenamel junction is the junction of tooth enamel with cementumat the neck or cervix of the tooth What type of tissue covers alveolar bone, attaching to the teeth at the margin of the gumlines - Epithelial attachment What is The tissue that divides the nasal cavity into 2 Part - Septum Which nerve is the primary nerve for the mout h - Trigeminal - It has both maxillary and mandibular innervation The pituitary gland is part of what body system - Endocrine is the system which regulates gland that produce hormones, including the pituitary What position places the chair back until the patient is almost lying down - Supine where the head ,chest and knees are approximately on the same level What is the best method of identifying working positions by a dental auxiliary - Clock concept dividing the treatment area into zones When transfer rings an instrument to the dentist, the dental assistant should: - Transfer the instrument with the working end in the position of use When retrieving an instrument from a right -handed operator, the assistant uses the fingers of their left hand - Last 2 Most of the time, a dental assistant will be working in what " time zone" during a treatment procedure - 2-4 "time zone" during procedures for left handed operators the dental assistant would work in the 8 -10 "time zone" Which chair has a foot bar for sup port - Assistant's stool The High Volume Evacuator tips should be placed to the tooth being prepared - Parallel to properly place and operate. the HVE , the bevel of the suction tip should be positioned so that it parallel to the tooth surface prepared. ( slightly beyond the occlu sal surface or incisal edge What isolation method is appropriate for one or several teeth - Dental dam An adult male arrives for a scheduled root canal and crown appointment. The dental assistant prepares the instrument fray and equipment when he is seat ed . What size hole punch is needed for a premolar on a dental dam - NO. 3 Punches are appropriate for premolars when preparing a dental Dam When removing a dry cotton roll from the mouth - Moisten with water before removal Which of the following is not a contraindication for the use of N2O2 - Anemia is not a contraindication for the use of N2O2 What part of the gas machine houses the nitrous oxide and oxygen to combine them together for the patient to breathe - Reservoir Bag Is the Chamber that houses t he gases Nitrous Oxide has been used on a patient. For how many minutes afterward should the patient remain on 100% Oxygen - 3 to 5 minutes is the appropriate length of time for patients Which of the following is an approved method by the Center for Dise ase Control for re -
capping a used needle - Using a recapping device, Single - handed swoop A long needle, 1 1/8" in length, is used for what type of injections - Block Typically, 1 5/8" long needle is used for block anesthesia What type of injection invol ves the tissues near the apex of a tooth - Infiltration is the technique that is used when in ecting anesthetic around a tooth to affect the tissues around and near the apex of the tooth Which of the following is NOT a health concern when it comes to sele cting the appropriate form of local anestheric - Joint replacement What is added to an anesthetic agent to lengthen the effect by decreasing blood flow - Vasoconstrictors act by constricting the blood vessels thereby decreasing blood flow in the are and l engthening the amount of time that local anesthetic is active in that location How long should topical anesthetic be applied to the mucos prior to an injection - Topical anesthetic should be 15 -30 seconds and for 1 -2 minutes for optimal effectiveness befo re injection What may be added to burs in order to shorten preparation time by improving cutting ability - Diamond stones Which of the following burs would be appropriate for a crown -prep setup try - Flame - shapped bur - as it is used to help make adjustments in crown perparations
capping a used needle - Using a recapping device, Single - handed swoop A long needle, 1 1/8" in length, is used for what type of injections - Block Typically, 1 5/8" long needle is used for block anesthesia What type of injection invol ves the tissues near the apex of a tooth - Infiltration is the technique that is used when in ecting anesthetic around a tooth to affect the tissues around and near the apex of the tooth Which of the following is NOT a health concern when it comes to sele cting the appropriate form of local anestheric - Joint replacement What is added to an anesthetic agent to lengthen the effect by decreasing blood flow - Vasoconstrictors act by constricting the blood vessels thereby decreasing blood flow in the are and l engthening the amount of time that local anesthetic is active in that location How long should topical anesthetic be applied to the mucos prior to an injection - Topical anesthetic should be 15 -30 seconds and for 1 -2 minutes for optimal effectiveness befo re injection What may be added to burs in order to shorten preparation time by improving cutting ability - Diamond stones Which of the following burs would be appropriate for a crown -prep setup try - Flame - shapped bur - as it is used to help make adjustments in crown perparations
