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Dental Radiography - E-Book

Dental Radiography - E-Book

Joen Iannucci | Laura Jansen Howerton

(2013)

Additional Information

Book Details

Abstract

Providing essential coverage of dental radiography principles and complete technical instruction, Dental Radiography: Principles and Techniques, 4th Edition, is your key to the safe, effective use of radiation in the dental office. The first ever full-color dental radiography resource, this combination of a textbook and a training manual guides you step-by-step through common procedures, with accompanying illustrations, case studies, and interactive exercises to help you apply what you've learned to practice.

  • A concise, straightforward writing style makes complex concepts more accessible and helps you easily identify the most important information.
  • Step-by-step procedures combine clear instructions with anatomical drawings, positioning photos, and corresponding radiographs to help you confidently and accurately perform specific techniques, thus minimizing radiation exposure to the patient.
  • Helpful Hints detail common problems you may encounter in practice and provide a checklist to guide you through the do's and don'ts of imaging procedures.
  • Quiz Questions at the end of each chapter assess your understanding of important content.
  • Key terms, learning objectives, and chapter summaries highlight essential information to help you study more efficiently.
  • Interactive exercises, terminology games, and case studies modeled on the National Board Dental Hygiene Examination (NBDHE) on Evolve reinforce your understanding and help you prepare for examinations.
  • New chapter on cone beam computed tomography (CBCT) familiarizes you with emerging practices in dental radiography.
  • Updated chapter discussions and new radiographs keep you up to date on the latest information in digital imaging.
  • UNIQUE! Full-color design and new illustrations and photographs clarify difficult concepts and help you master proper positioning techniques.
  • UNIQUE! A comprehensive appendix provides quick, easy access to all mathematical formulas used in dental radiography.

Table of Contents

Section Title Page Action Price
Front cover cover
Evolve page ifc1
Dental Radiography, 4/e i
Copyright page iv
Dedication v
Reviewers vi
Preface vii
About This Edition vii
New to This Edition vii
About EVOLVE vii
For the Student vii
For the Instructor viii
From the Authors viii
Acknowledgements ix
Table of Contents xi
I Radiation Basics 1
1 Radiation History 2
Outline 2
Learning Objectives 2
Key terms 2
Dentistry and X-Radiation 2
Basic Terminology 2
Importance of Dental Radiographs 3
Discovery of X-Radiation 3
Roentgen and the Discovery of X-rays 3
Earlier Experimentation 4
Pioneers in Dental X-Radiation 4
History of Dental X-Ray Equipment 5
History of Dental X-Ray Film 5
History of Dental Radiographic Techniques 6
Summary 6
Bibliography 6
Quiz Questions 7
Matching 7
Essay 7
2 Radiation Physics 8
Outline 8
Learning Objectives 8
Key Terms 8
Fundamental Concepts 9
Atomic and Molecular Structure 9
Atomic Structure 9
Nucleus. 9
Electrons. 9
Molecular Structure 11
Ionization, Radiation, and Radioactivity 11
Ionization 11
Radiation and Radioactivity 12
Ionizing Radiation 12
Particulate Radiation 12
Electromagnetic Radiation 12
Particle Concept. 12
Wave Concept. 12
X-Radiation 13
X-Ray Machine 14
Component Parts 14
Control Panel 14
Extension Arm 14
Tubehead 14
X-Ray Tube 15
Leaded-Glass Housing 16
Cathode 16
Anode 16
X-Ray Generating Apparatus 16
Electricity and Electrical Currents 16
Circuits 17
Transformers 17
Production of X-Radiation 17
Production of Dental X-Rays 17
Types of X-Rays Produced 18
General Radiation 18
Characteristic Radiation 19
Definitions of X-Radiation 19
Interactions of X-Radiation 19
No Interaction 20
Absorption of Energy and Photoelectric Effect 20
Compton Scatter 20
Coherent Scatter 20
Summary 20
Bibliography 21
Quiz Questions 21
Multiple Choice 21
Identification 22
Multiple Choice 22
Identification 24
Multiple Choice 24
3 Radiation Characteristics 26
Outline 26
Learning Objectives 26
Key Terms 26
X-Ray Beam Quality 27
Voltage and Kilovoltage 27
Kilovoltage Peak 27
Density and Kilovoltage Peak 27
Contrast and Kilovoltage Peak 28
Exposure Time and Kilovoltage Peak 29
X-Ray Beam Quantity 29
Amperage and Milliamperage 29
Milliampere-Seconds 29
Density and Milliamperage 30
Exposure Time and Milliamperage 30
X-Ray Beam Intensity 30
Kilovoltage Peak 30
Milliamperage 30
Exposure Time 30
Distance 30
Inverse Square Law 31
Half-Value Layer 32
Summary 32
Bibliography 32
Quiz Questions 32
Multiple Choice 32
4 Radiation Biology 34
Outline 34
Learning Objectives 34
Key Terms 34
Radiation Injury 35
Mechanisms of Injury 35
Ionization 35
Free Radical Formation 35
Theories of Radiation Injury 35
Direct Theory 36
Indirect Theory 36
Dose–Response Curve 36
Stochastic and Nonstochastic Radiation Effects 36
Sequence of Radiation Injury 37
Determining Factors for Radiation Injury 37
Radiation Effects 37
Short-Term and Long-Term Effects 37
Somatic and Genetic Effects 37
Radiation Effects on Cells 38
Radiation Effects on Tissues and Organs 38
Radiation Measurements 39
Units of Measurement 39
Exposure Measurement 39
Dose Measurement 40
Dose Equivalent Measurement 40
Measurements Used in Dental Radiography 40
Radiation Risks 40
Sources of Radiation Exposure 40
Risk and Risk Estimates 41
Dental Radiation and Exposure Risks 41
Risk Elements 41
Thyroid Gland. 41
Bone Marrow. 41
Skin. 41
Eyes. 41
Patient Exposure and Dose 41
Risk Versus Benefit of Dental Radiographs 42
Summary 42
Bibliography 42
Quiz Questions 43
Multiple Choice 43
5 Radiation Protection 45
Outline 45
Learning Objectives 45
Key Terms 45
Patient Protection 46
Before Exposure 46
Prescribing Dental Radiographs 46
Proper Equipment 46
Filtration. 46
Inherent Filtration. 46
Added Filtration. 46
Total Filtration. 46
Collimation. 46
Position-Indicating Device. 48
During Exposure 48
Thyroid Collar 48
Lead Apron 50
Fast Film 50
Beam Alignment Devices 50
Exposure Factor Selection 51
Proper Technique 51
After Exposure 51
Proper Film/Sensor Handling 51
Proper Film Processing/Image Retrieval 51
Operator Protection 51
Protection Guidelines 51
Distance Recommendations 51
Position Recommendations 51
Shielding Recommendations 52
Radiation Monitoring 52
Equipment Monitoring 52
Personnel Monitoring 52
Radiation Exposure Guidelines 52
Radiation Safety Legislation 52
Maximum Permissible Dose 53
Maximum Accumulated Dose 53
ALARA Concept 53
Radiation Protection and Patient Education 53
Summary 53
Bibliography 54
Useful Websites 54
Quiz Questions 54
True or False 54
Multiple Choice 54
Fill in the Blank 55
II Equipment, Film, and Processing Basics 56
6 Dental X-Ray Equipment 57
Outline 57
Learning Objectives 57
Key Terms 57
Dental X-Ray Machines 57
Performance Standards 57
Types of Machines 58
Component Parts 58
Tubehead 58
Extension Arm 58
Control Panel 58
On-Off Switch. 59
Exposure Button. 59
Control Devices. 59
Dental X-Ray Film Holders and Beam Alignment Devices 59
Types of Film Holders 59
Types of Beam Alignment Devices 60
Summary 61
Bibliography 61
Quiz Questions 61
Multiple Choice 61
7 Dental X-Ray Film 63
Outline 63
Learning Objectives 63
Key Terms 63
Dental X-Ray Film Composition and Latent Image 64
Film Composition 64
Film Base 64
Adhesive Layer 64
Film Emulsion 64
Gelatin. 64
Halide Crystals. 64
Protective Layer 64
Latent Image Formation 64
Types of Dental X-Ray Film 65
Intraoral Film 65
Intraoral Film Packaging 65
X-Ray Film. 65
Paper Film Wrapper. 66
Lead Foil Sheet. 66
Outer Package Wrapping. 66
Tube Side. 67
Label Side. 67
Intraoral Film Types 67
Periapical Film. 67
Bite-Wing Film. 67
III Dental Radiographer Basics 120
11 Dental Radiographs and the Dental Radiographer 121
Outline 121
Learning Objectives 121
Key Terms 121
Dental Radiographs 121
Importance of Dental Radiographs 121
Uses of Dental Radiographs 122
Benefits of Dental Radiographs 122
Information Found on Dental Radiographs 122
The Dental Radiographer 122
Knowledge and Skill Requirements 122
Duties and Responsibilities 122
Professional Goals 123
Patient Protection 123
Operator Protection 123
Patient Education 123
Operator Competence 123
Operator Efficiency 123
Production of Quality Radiographs 123
Quality Care 123
Summary 123
Bibliography 124
Quiz Questions 124
True or False 124
12 Patient Relations and the Dental Radiographer 125
Outline 125
Learning Objectives 125
Key Terms 125
Interpersonal Skills 125
Communication Skills 125
Verbal Communication Skills 125
Nonverbal Communication Skills 126
Listening Skills 126
Facilitation Skills 126
Patient Relations 127
First Impressions and Patient Relations 127
Chairside Manner and Patient Relations 127
Attitude and Patient Relations 128
Summary 128
Bibliography 128
Quiz Questions 128
True or False 128
13 Patient Education and the Dental Radiographer 130
Outline 130
Learning Objectives 130
Importance of Patient Education 130
Methods of Patient Education 131
Common Questions and Answers 131
Necessity Questions 131
Exposure Questions 132
Safety Questions 133
Digital Imaging Questions 133
Miscellaneous Questions 133
Summary 133
Bibliography 133
Quiz Questions 134
Essay 134
Short Answer 134
14 Legal Issues and the Dental Radiographer 135
Outline 135
Learning Objectives 135
Key Terms 135
Legal Issues and Dental Radiography 135
Federal and State Regulations 135
Licensure Requirements 136
Legal Issues and the Dental Patient 136
Risk Management 136
Informed Consent 136
Liability 137
Malpractice Issues 137
Patient Records 137
Documentation 137
Confidentiality 137
Ownership and Retention of Dental Radiographs 137
Patients Who Refuse Dental Radiographs 138
Summary 138
Bibliography 138
Quiz Questions 138
Multiple Choice 138
15 Infection Control and the Dental Radiographer 140
Outline 140
Learning Objectives 140
Key Terms 140
Infection Control Basics 141
Rationale for Infection Control 141
Infection Control Terminology 141
Guidelines for Infection Control Practices 141
Personal Protective Equipment 142
Protective Clothing 142
Gloves 142
Masks and Protective Eyewear 142
Hand Hygiene and Care of Hands 142
Hand Hygiene 142
Care of Hands 142
Sterilization and Disinfection of Instruments 142
Cleaning and Disinfection of Dental Unit and Environmental Surfaces 143
Infection Control in Dental Radiography 143
Infection Control Procedures Used Before Exposure 143
Preparation of Treatment Area 143
X-Ray Machine. 143
Dental Chair. 143
Work Area. 143
Lead Apron. 143
Preparation of Supplies and Equipment 143
Film. 143
Digital Sensors. 145
Beam Alignment Devices. 145
Miscellaneous Items. 145
Preparation of the Patient 145
Chair Adjustment. 145
Headrest Adjustment. 145
Lead Apron. 145
Miscellaneous Objects. 145
Preparation of the Dental Radiographer 145
IV Technique Basics 151
16 Introduction to Radiographic Examinations 152
Outline 152
Learning Objectives 152
Key Terms 152
Intraoral Radiographic Examination 152
Types of Intraoral Radiographic Examinations 152
Periapical Examination 153
V Digital Imaging Basics 300
25 Digital Imaging 301
Outline 301
Learning Objectives 301
Key Terms 301
Basic Concepts 302
Terminology 302
Purpose and Use 302
Fundamentals 302
Radiation Exposure 303
Equipment 303
X-Radiation Source 303
Intraoral Sensor 304
Charge-Coupled Device. 304
Complementary Metal Oxide Semiconductor/Active Pixel Sensor. 304
Computer 305
Types of Digital Imaging 305
Direct Digital Imaging 306
Indirect Digital Imaging 306
Scanning Traditional Radiographs 306
Storage Phosphor Imaging 306
Step-By-Step Procedures 307
Sensor Preparation 307
Sensor Placement 307
Advantages and Disadvantages 307
Advantages of Digital Imaging 307
Disadvantages of Digital Imaging 309
Summary 310
Bibliography 310
Quiz Questions 311
Matching 311
True or False 311
Multiple Choice 311
26 Three-Dimensional Digital Imaging 312
Outline 312
Learning Objectives 312
Key Terms 312
Basic Concepts 312
Terminology 313
Fundamentals 313
Equipment 314
Cbct Machine 315
Computer 315
Viewing Software 315
Common Uses 317
Step-by-Step Procedures 319
Patient Preparation 319
Patient Positioning 319
Advantages and Disadvantages 319
Advantages of Three-Dimensional Imaging 319
Disadvantages of Three-Dimensional Digital Imaging 321
Summary 322
Bibliography 322
Quiz Questions 322
Matching 322
True or False 322
Multiple Choice 323
Short Answers 323
VI Normal Anatomy and Film Mounting Basics 324
27 Normal Anatomy: Intraoral Images 325
Outline 325
Learning Objectives 325
Key Terms 325
Definitions of General Terms 326
Types of Bone 326
Cortical Bone 326
Cancellous Bone 326
Prominences of Bone 326
Spaces and Depressions in Bone 328
Miscellaneous Terms 328
Normal Anatomic Landmarks 328
Bony Landmarks of the Maxilla 328
Incisive Foramen 329
VII Image Interpretation Basics 368
30 Introduction to Image Interpretation 369
Outline 369
Learning Objectives 369
Key Terms 369
Basic Concepts 369
Interpretation Terminology 369
Importance of Interpretation 369
Guidelines 370
Who Interprets Images? 370
Interpretation versus Diagnosis 370
When and Where Are Images Interpreted? 370
Interpretation and Patient Education 370
Summary 370
Bibliography 371
Quiz Questions 371
Short Answer 371
True or False 371
31 Descriptive Terminology 372
Outline 372
Learning Objectives 372
Key Terms 372
Definition and Uses 372
What Is Descriptive Terminology? 372
Why Use Descriptive Terminology? 373
Descriptive Terminology versus Diagnosis 373
Review of Basic Terms 373
Radiograph/Dental Image versus X-ray 373
Radiolucent versus Radiopaque 373
Terms Used to Describe Radiolucent Lesions 374
Appearance 374
Unilocular Radiolucent Lesions. 374
Unilocular Lesion—Corticated Borders. 374
Unilocular Lesion—Noncorticated Borders. 374
Multilocular Radiolucent Lesions. 374
Location 375
Periapical Location. 375
Inter-Radicular Location. 376
Edentulous Zone. 376
Pericoronal Location. 377
Alveolar Bone Loss. 377
Size 377
Terms Used to Describe Radiopaque Lesions 377
Appearance 377
Focal Opacity. 377
Target Lesion. 378
Multifocal Confluent Pattern. 378
Irregular/Ill-Defined Opacity. 378
Ground-Glass Opacity. 379
Mixed Lucent–Opaque Lesion. 379
Soft Tissue Opacity. 379
Location 379
Periapical Location. 380
Inter-Radicular Location. 380
Edentulous Zone. 380
Pericoronal Location. 380
Size 381
Summary 381
Bibliography 381
Quiz Questions 381
Short Answer 381
Matching 381
32 Identification of Restorations, Dental Materials, and Foreign Objects 383
Outline 383
Learning Objectives 383
Key Terms 383
Identification of Restorations 384
Amalgam Restorations 384
One-Surface Amalgam Restorations 384
Amalgam Overhangs 384
Amalgam Fragments 385
Gold Restorations 385
Gold Crowns and Bridges 386
Gold Foil Restorations 386
Stainless Steel and Chrome Crowns 386
Post and Core Restorations 387
Porcelain Restorations 388
All-Porcelain Crowns 388
Porcelain-Fused-to-Metal Crown 389
Composite Restorations 389
Acrylic Restorations 390
Identification of Materials used in Dentistry 390
Materials Used in Restorative Dentistry 390
Base Materials 390
Metallic Pins 391
Materials Used in Endodontics 391
Gutta Percha 391
Silver Points 391
Materials Used in Prosthodontics 391
Complete Dentures 391
Removable Partial Dentures 392
Materials Used in Orthodontics 393
Materials Used in Oral Surgery 393
Identification of Miscellaneous Objects 393
Jewelry 395
Eyeglasses and Napkin Chain 397
Summary 397
Bibliography 398
Quiz Questions 399
Identification 399
Multiple Choice 400
Short Answer 401
33 Interpretation of Dental Caries 402
Outline 402
Learning Objectives 402
Key Terms 402
Description of Caries 403
Detection of Caries 403
Clinical Examination 403
Dental Image Examination 403
Interpretation of Caries on Dental Images 403
Interpretation Tips 404
Factors Influencing Caries Interpretation 404
Classification of Caries on Dental Images 404
Interproximal Caries 404
Incipient Interproximal Caries 405
Moderate Interproximal Caries 405
Advanced Interproximal Caries 405
Severe Interproximal Caries 406
Occlusal Caries 406
Incipient Occlusal Caries 406
Moderate Occlusal Caries 406
Severe Occlusal Caries 406
Buccal and Lingual Caries 407
Root Surface Caries 407
Recurrent Caries 408
Rampant Caries 408
Summary 408
Bibliography 409
Quiz Questions 409
Identification 409
Matching 409
Short Answer 411
34 Interpretation of Periodontal Disease 412
Outline 412
Learning Objectives 412
Key Terms 412
Description of the Periodontium 412
Description of Periodontal Disease 413
Detection of Periodontal Disease 414
Clinical Examination 414
Dental Image Examination 414
Interpretation of Periodontal Disease on Dental Images 415
Bone Loss 415
Pattern 415
Distribution 415
Severity 415
Classification of Periodontal Disease 416
ADA Case Type I 416
ADA Case Type II 417
ADA Case Type III 417
ADA Case Type IV 419
Predisposing Factors 419
Calculus 419
Defective Restorations 419
Summary 419
Bibliography 424
Quiz Questions 424
Identification 424
Matching 424
Fill in the Blank 424
35 Interpretation of Trauma, and Pulpal and Periapical Lesions 426
Outline 426
Learning Objectives 426
Key Terms 426
Trauma Viewed on Dental Images 426
Fractures 427
Crown Fractures 427
Root Fractures 427
Jaw Fractures 427
Injuries 427
Luxation 428
Avulsion 428
Resorption Viewed on Dental Images 428
External Resorption 429
Internal Resorption 429
Pulpal Lesions Viewed on Dental Images 429
Pulpal Sclerosis 429
Pulpal Obliteration 430
Pulp Stones 430
Periapical Lesions Viewed on Dental Images 430
Periapical Radiolucencies 431
Periapical Granuloma 431
Periapical Cyst 432
Periapical Abscess 432
Periapical Radiopacities 433
Condensing Osteitis 433
Sclerotic Bone 433
Hypercementosis 433
Summary 434
Bibliography 434
Quiz Questions 435
Matching 435
Identification 435
Glossary 437
Index 453
A 453
B 454
C 454
D 455
E 456
F 457
G 458
H 458
I 459
J 460
K 460
L 460
M 460
N 461
O 461
P 462
Q 463
R 463
S 464
T 465
U 466
V 466
W 466
X 466
Y 466
Z 466