Chairside Assisting Final Review Questions & Answers, Already Passed!!

What are the three specific parts of a hand instrument? - Answer-handle, shank, and working end What are the four classifications of instruments discussed in class? - Answer-Exam, Hand-cutting, Restorative, Accessory List 4 examples of examination instruments. - Answer-Mouth Mirror, Explorer, Cotton Pliers, Periodontal Probe List the three instruments that make up the basic setup. - Answer-mirror, explorer, cotton pliers Spoon Excavator - Answer-Hand Cutting: Remove soft dentin, debris, and decay from tooth. (most common: spoon excavator, black spoon) Hoe - Answer-Hand Cutting: Plane walls and floors of tooth prep. (push-pull action) Chisel - Answer-Hand Cutting: Cut enamel margin of tooth prep, form sharp lines, point angles, and place retention grooves. (Straight, Bin-angle, Wedelstaedt , and Angle-former chisel) Hatchet - Answer-Hand Cutting: Cut enamel and smooth walls & floors of tooth prep Gingival Margin Trimmer - Answer-Hand Cutting: Cut enamel and place bevels along gingival enamel margins of the prep. Amalgam Carrier - Answer-Restorative: Double-ended instrument with wells on both ends to pack fresh amalgam in & carry to prepped tooth. Condenser - Answer-Restorative: Condense (pack down) fresh placed amalgam into the preparation. (flat end that are smooth or serrated) Burnisher - Answer-Restorative: Used to smooth the surface of fresh placed amalgam restoration. (Ball, Football, T-shaped, Beavertail)Hollenback Carver - Answer-Restorative: Remove excess material, contour surfaces, and carve anatomy back into amalgam or intermediate restoration b4 it hardens. (Used to remove excess material) Discoid-Cleoid Carver - Answer-Restorative: Remove excess material, contour surfaces, and carve anatomy back into amalgam or intermediate restoration b4 it hardens. (Used for occlusal) Amalgam Knife - Answer-Restorative: Used to remove excess material along margin where material and tooth structure meet; most commonly interproximal. List 4 of the functions of a mouth mirror - Answer-Indirect vision, retraction, indirect illumination, and transillumination Using Black's instrument formula for a three-number instrument, indicate what each number represents. - Answer-Width, Length, Angle Class I - Answer-Decay is diagnosed in the pits and fissures of the occlusal surfaces of molars and premolars, the buccal or lingual pits of molars, and the lingual pits of maxillary incisors. Class II - Answer-Decay is diagnosed on the proximal (mesial or distal) surfaces of premolars and molars. Class III - Answer-Decay is diagnosed on the proximal (mesial or distal) surfaces of incisors and canines. Class IV - Answer-Decay is diagnosed in the proximal (mesial or distal) surfaces of incisors and canines. Class V - Answer-Decay is diagnosed in the gingival third of the facial or lingual surface of any tooth. Class VI - Answer-Decay is diagnosed on the incisal edges of the anterior teeth and the cusp tips of the posterior teeth. Who developed the standard classification system used today? - Answer-G. V. BlackWhat is the difference between a direct restoration and an indirect restoration? - Answer-Indirect restoration is made in a labratory; Direct is created within the mouth What classification would a MOD on tooth #19 be? - Answer-Class II What classification would a L pit on tooth #7 be? - Answer-Class I What material would most likely be used for a class III or class IV restoration? - Answer-Composite (tooth colored resin) What classification would a MI on tooth #7 be? - Answer-Class IV Could tooth #8 have a class II cavity classification? - Answer-No, Class II is for mesial or distal surfaces of premolars and molars. Would a class I cavity classification require the use of a matrix system? How about a class II cavity? - Answer-No, Class I is for pits and fissures only; Yes, Class II is for proximal areas. Can a class V restoration be done on both anterior and posterior teeth? - Answer-Yes, Class V is for restorations on the gingival areas of anterior and posterior teeth. Two tooth surfaces meet and form a _______________ angle. - Answer-Line This is the area where the tooth and restoration meet. - Answer-Cavosurface margin The wall that overlies the pulp is the pulpal wall or: - Answer-Floor Restorative and esthetic dentistry are also referred to as _________________________ dentistry. - Answer-Operative Dentistry As discussed in lecture, when is restorative dentistry indicated? (4 situations) - AnswerAs discussed in lecture, what is the definition of "cavity preparation"? - Answer-Process of decay removal and tooth design in preparation for restoring a tooth. What type of matrix would be used on a posterior tooth with an amalgam restoration? - AnswerUniversal retainer and matrix band Which instrument can be used to contour and thin a matrix band? - Answer-mouth mirror When are wedges used? - Answer-For the use of a toffelmeier; posterior mesial or distal area What is the purpose of articulating paper? - Answer-Check the occlusal relationship when teeth contact T/F Esthetic dentistry is primarily devoted to improving the appearance of teeth. - Answer-False T/F - AnswerT/F The purpose of cavity preparation is to remove decay and a small amount of healthy tooth structure. - Answer-True T/F The dentist will commonly use hand instruments over rotary instruments to prepare tooth structure and place retention grooves in the preparation. - Answer-False