PERIO II Exam 2 Questions and Answers | Latest Updated 2026/2027 | Graded A+ | 100% Correct Solutions.

PERIO II Exam 2 Questions and Answers | Latest Updated 2026/2027 | Graded A+ | 100% Correct Solutions. what is the most essential element of successful periodontal therapy? a. flossing b. surgery c. plaque control d. bone grafting - Answer c soft bristles a. 0.007 inch (0.2 mm) b. 0.012 inch (0.3 mm) c. 0.014 inch (0.4 mm) - Answer a medium bristles a. 0.007 inch (0.2 mm) b. 0.012 inch (0.3 mm) c. 0.014 inch (0.4 mm) - Answer b hard bristles a. 0.007 inch (0.2 mm) b. 0.012 inch (0.3 mm) c. 0.014 inch (0.4 mm) - Answer c which of the following is associated with hard bristles? a. more flexible b. associated with more gingival recession c. clean slightly below the gingival margin when used with a sulcular brushing technique d. reach farther into the proximal surfaces - Answer b (the rest are associated with softer bristles) (T/F) toothbrushes need to be replaced every 6 to 8 months - Answer false (3 to 4 months) cochrane review stated only mechanical brushes with oscillating and rotating motions reduced microbial plaque ______ and demonstrated _____ greater reduction in gingival bleeding than manual brushing. - Answer 11% 6% Patients need to be instructed in the proper use of powered devices. Patients who are poor brushers, children and caregivers will not benefit from using powered toothbrushes. a. both statements are true b. both statements are false c. first statement is false, second statement is true d. first statement is true, second statement is false - Answer d (may benefit) - bristles are angled into the sulcus at a 45 degree angle and overlap onto the facial gingiva - the head of the brush is then "rolled" so the bristles more occlusally - suggested for use after periodontal plastic surgery to treat gingival recession - rolling motion is used to guide the healing tissues coronally a. modified stillman technique b. bass technique c. charters technique - Answer a - most often recommended - bristles are angled toward the gingival margin at a 45 degree angle and gently introduced into the sulcus - the brush is moved in a short vibratory stroke - penetration of the bristle into the sulcus disrupts subgingival plaque - sulcular penetration of approx. 1 mm a. modified stillman technique b. bass technique c. charters technique - Answer b - bristles are perpendicular to the long axis of the teeth - the bristles are then gently forces into the interproximal embrasures which causes some deflection of the bristles toward the occlusal surfaces of the teeth - the side of the bristles eventually rests on the surface of the gingiva a. modified stillman technique b. bass technique c. charters technique - Answer c - supposedly good for gingival massage - was alleged to be indicated in cases of advanced periodontitis when the interdental embrasures are relatively open - recommended for use in the postsurgical healing pahse to prevent damage to the immature attachment apparatus a. modified stillman technique b. bass technique c. charters technique - Answer c (T/F) Scaling and root planing are separate procedures - Answer false (NOT separate) Plaque on enamel is usually superficially attached and locked into irregularities. Whereas calculus on root surfaces is also embedded in the irregularities in the cementum forcing the clinical to remove a portion of the cementum to eliminate deposits. a. both statements are true b. both statements are false c. first statement is true, second statement is false d. first statement is false, second statement is true - Answer d (not locked into irregularities on enamel) which of the following describe supragingival calculus: I. more tenacious than subgingival II. less calcified than subgingival III. instrumentation is apical to the gingival margin IV. strokes of the instrument are not limited by the surrounding tissues V. direct visibility a. II, III, IV, and V b. I, II, III, IV, and V c. I and IV d. II, IV and V e. II only - Answer d (I- less tenacious; III- instrumentation coronal to margin) which of the following describe subgingival calculus: I. harder than supragingival calculus II. less tenacious than supragingival calculus III. locked into irregularities IV. less difficult to remove than supragingival calculus a. I, II, III, and IV b. I and III c. I only d. II and IV - Answer b (II- more tenacious; IV- more difficult to remove) All of the following are limitations of subgingival SRP EXCEPT: a. limit extent of instrumentation b. bleeding limits vision c. roots are too hard for most instruments