EFDA Board Exam 228 Questions with Complete Solutions 100% Verified 2024/2025 What agent is used in topical anesthetic? - Correct Answer Benzocaine How long should topical anesthetic be placed for more profound soft tissue analgesia? - Correct Answer 60 to 90 seconds Dry angles are an effective way to control saliva secretions from - Correct Answer stensen's duct what type of ZOE lacks strength and long-term durability? - Correct Answer type I (temporary cement) This type of cement is a hybrid of silicate and polycarboxilate cement - Correct Answer glass ionomer what material is supplied as a paste/paste system and also in cartridges? - Correct Answer polyether What does the term elastomeric mean? - Correct Answer having elastic or rubber-like qualities an alginate absorbing excess water is termed what? - Correct Answer imbibition what is a final impression used for? - Correct Answer an accurate reproduction of teeth and surrounding tissue what is the negative reproduction of dental arches and surrounding tissues? - Correct Answer impression at what point in a procedure is a mylar matrix placed? - Correct Answer before etching the retainer (toffelmire) is positioned from what surface? - Correct Answer buccal 1 / 3
Where is the wedge inserted to position the matrix band firmly against the gingival margin? - Correct Answer lingual embrasure what instruments are used to contour a matrix band? - Correct Answer burnisher or mirror handle a matrix band is made of what? - Correct Answer thin flexible steel what stabilizes the tofflemire matrix band? - Correct Answer wooden wedge what type of stain can chlorhexidine cause? - Correct Answer extrinsic most common type of temporary coverage for crown and bridge? - Correct Answer custom provisional why only intermittent pressure of a tooth when polishing? - Correct Answer heat dissipates between strokes Course, extra course, medium, fine and extrafine are different _____ of polishing paste? - Correct Answer grit removal of calculus, debris, stain, and plaque from teeth - Correct Answer oral prophylaxis where on the tooth do you begin to use prophy cup? - Correct Answer gingival third what is the different between catalyst and a base? - Correct Answer Base- basic ingredient of material catalyst- increases the rate of chemical reaction (makes it set) Would you use a polymer crown on an anterior tooth? why? - Correct Answer yes, because its tooth colored What is a class I cavity - Correct Answer decay in pits and fissures of occlusal surface 2 / 3
What is a class II cavity - Correct Answer decay on proximal (mesial or distal) surfaces of premolars and molars What is a class III cavity? - Correct Answer decay in proximal surfaces (Mesial or distal) of incisors and canines What is a class IV cavity? - Correct Answer decay in proximal surfaces (mesial or distal) of incisors and canines and involves the incisal edge or angle of tooth What is a class V cavity? - Correct Answer decay on the gingival third of facial or lingual surface of any tooth what is a class VI cavity? - Correct Answer decay on incisal edges of anterior teeth and the cusp tips of posterior teeth caused by abrasion, wear, or defects Stensen's duct - Correct Answer back cheek by first molar pterygomandibular raphe - Correct Answer Fold of tissue that extends from the junction of the hard and soft palates down to the mandible gingival embrasure - Correct Answer triangular space of gums between the teeth incisal embrasure - Correct Answer triangular space between incisal edge of teeth furcation - Correct Answer The space between two roots where they meet the crown Frenum - Correct Answer Band of tissue that passes from the facial oral mucosa at the midline of the arch to the midline of the inner surface of the lip oropharynx - Correct Answer central portion of the pharynx between the roof of the mouth and the upper edge of the epiglottis
- / 3