Chapter 35: Interpretation of Trauma and Pulpal and Periapical Lesions

Chapter 35: Interpretation of Trauma and Pulpal and Periapical Lesions

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

MULTIPLE CHOICE

1. Root fractures occur most often in the _______________ region.

ANS:  A

Root fractures occur most often in the maxillary central incisor region.

DIF:    Recall             REF:   Page 426        OBJ:   2

TOP:   CDA, RHS, I.C.2.b. Identify anatomical structures, dental materials, and patient information observed on radiographic images

MSC:  NBDHE, 2.4 Recognition of normalities and abnormalities

2. Your patient thinks he fractured his mandible. Which image would you take to evaluate for a fracture?

ANS:  D

The panoramic image is the image of choice for the evaluation of mandibular fractures. An occlusal image is too small and is not in the right plane for visualization of jaw fractures. A periapical image is too small for visualization of jaw fractures. A bite-wing image is too small for visualization of jaw fractures.

DIF:    Application    REF:   Page 426        OBJ:   2

TOP:   CDA, RHS, I.C.2.b. Identify anatomical structures, dental materials, and patient information observed on radiographic images

MSC:  NBDHE, 2.4 Recognition of normalities and abnormalities

3. Which of the following describes luxation?

ANS:  A

Luxation is the abnormal displacement of teeth.

DIF:    Comprehension                               REF:   Page 428        OBJ:   3

TOP:   CDA, RHS, I.C.2.b. Identify anatomical structures, dental materials, and patient information observed on radiographic images

MSC:  NBDHE, 2.4 Recognition of normalities and abnormalities

4. Your patient had tooth #8 displaced lingually when she fell, and her face impacted the sidewalk. Which type of image should you take to evaluate the tooth?

ANS:  B

Teeth that have been luxated should be evaluated by a periapical image and examined for root and adjacent alveolar bone fractures, damage to the periodontal ligament, and pulpal problems. The bite-wing image does not permit visualization of the apex of the tooth. The occlusal image may reveal the apex of some anterior teeth, but the roots of many teeth are severely foreshortened. The panoramic image does not have the resolution of a periapical image, making it difficult to rely on alone for evaluation of a luxated tooth.

DIF:    Application    REF:   Page 428        OBJ:   3

TOP:   CDA, RHS, I.C.2.b. Identify anatomical structures, dental materials, and patient information observed on radiographic images

MSC:   NBDHE, 2.4 Recognition of normalities and abnormalities