Exam 26: Root Morphology and Instrumentation Implications

CASE STUDY Monica is a 38-year-old woman who visits the office as a new client for an oral assessment and necessary care.Her health history indicates that she is in good health.Monica reports that she brushes three times per day and flosses every night,but her gums bleed every time she flosses.On completion of the full mouth radiographs,dentist's examination,and diagnosis,the dental hygienist completes the periodontal assessment and dental hygiene care plan.Findings include generalized,papillary and marginal gingival erythema;edema;and increased bleeding on probing at all proximal surfaces,especially teeth 8 and 9.No visible supragingival calculus is observed,but there is flat,easily explorable subgingival calculus present on all proximal surfaces,and there are rings of subgingival calculus in 4-mm pocket depths on the lingual surfaces of the mandibular molars,especially teeth 30 and 31.Furthermore,tooth 14 has facial and lingual recession of 4 mm,circumferential 3-mm pocket depths,a Class I mesial furcation,and cementum that is grainy and soft. -The area of teeth 11 and 12 will provide instrumentation challenges owing to which of the following canine and first premolar features?

CASE STUDY Monica is a 38-year-old woman who visits the office as a new client for an oral assessment and necessary care.Her health history indicates that she is in good health.Monica reports that she brushes three times per day and flosses every night,but her gums bleed every time she flosses.On completion of the full mouth radiographs,dentist's examination,and diagnosis,the dental hygienist completes the periodontal assessment and dental hygiene care plan.Findings include generalized,papillary and marginal gingival erythema;edema;and increased bleeding on probing at all proximal surfaces,especially teeth 8 and 9.No visible supragingival calculus is observed,but there is flat,easily explorable subgingival calculus present on all proximal surfaces,and there are rings of subgingival calculus in 4-mm pocket depths on the lingual surfaces of the mandibular molars,especially teeth 30 and 31.Furthermore,tooth 14 has facial and lingual recession of 4 mm,circumferential 3-mm pocket depths,a Class I mesial furcation,and cementum that is grainy and soft. -To complete instrumentation on tooth 14,the dental hygienist will do which of the following?

Teeth with roots that are broad proximally and have narrow facial and lingual surfaces are which of the following?

Cervical enamel projections (CEPs)are "droplets" of enamel that form on the surface of the roots of multirooted teeth generally near the area of a furcation.CEPs are most frequently observed on mandibular molars.

Which of the following teeth is most likely to have a furcal concavity?