Course Content
Introduction
Here is what to expect
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About the Exam
Resourses
About The Course
Unit 1A: Purpose and Technique (50%) (Purpose)
A. Purpose of radiographic images 1. Periapical 2. Bitewing 3. Full mouth series 4. Occlusal 5. Full-mouth survey 6. Panoramic 7. Cephalometric 8. CBCT (cone-beam computed tomography) B. Technique 1. Review patient medical and dental histories for contraindications, including medications. 2. Intraoral techniques, including error correction. a. Paralleling b. Bisecting angle 3. Extraoral techniques, including error correction. a. Panoramic b. Cephalometric c. CBCT (cone-beam computed tomography) basics 4. Technique modifications based on anatomical variations and clinical conditions. 5. Purpose and maintenance of radiographic equipment. 6. Patient management techniques. 7. Mounting and anatomical landmarks that aid in mounting. 8. Anatomical structures and dental materials observed on images (e.g., differentiating between radiolucent and radiopaque areas). 9. Features of a diagnostically acceptable image. 10. Prepare images for legal requirements (e.g., HIPAA).
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Purpose of Radiographic Images
06:55
Periapical Radiographs (PA)
01:58
Bitewing Radiographs (BWX)
01:40
Full Mouth Series (FMX)
Occlusal Radiographs
Full-mouth survey
Panoramic Radiography
Cephalometric Radiography
Cone-Beam Computed Tomography (CBCT)
Technique
Anatomy Flashcards
Quadrants, Regions, and Tooth Numbering Systems
Practice and Review
Additional Insights
Final Unit Lesson: Reviewing Radiographic Imaging Techniques
Unit I A Practice quiz
Matching Assignment: Types of Radiographs and Their Purposes
Matching Quiz: Types of Radiographs and Their Purposes
Film/Sensor Holding Devices
Unit 1B Purpose and Technique (50%) (Technique)
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Reviewing Patient Medical and Dental Histories for Contraindications, Including Medications
Techniques: Intraoral Techniques, Including Error Correction
Extraoral Techniques, Including Error Correction
Technique Modifications Based on Anatomical Variations and Clinical Conditions
Equipment Purpose & Maintenance
Patient Management Techniques in Dental Radiography
Mounting and Anatomical Landmarks in Dental Radiography
Anatomical Structures and Dental Materials in Dental Radiography
Features of a Diagnostically Acceptable Image in Dental Radiography
Legal Requirements & Image Preparation
Unit 1B Practice Quiz
The Nature of X-rays (Physics Basics)
06:34
Unit 2A: Radiation production (25%)
Radiation production. 1. Sources of radiation for operators/other staff during radiation production. 2. Factors affecting x-ray production (e.g., kVp, mA, exposure time). 3. Radiation characteristics. 4. Radiation physics. a. Primary. b. Scatter (secondary). 5. Radiation biology. a. Short-and long-term effects of radiation on cells and tissues. b. Concepts of radiation dose.
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Sources of radiation for operators/other staff during radiation production
Factors Affecting X-ray Production
Radiation Characteristics and Interactions with Matter
Radiation Production Sources
Radiation Safety and Patient Exposure
Radiation Physics in Dental Imaging
Radiation Biology and Effects on Dental Tissues
Unit 2A Summary: Radiation Health and Safety in Dental Imaging
Unit 2B: Radiation Safety
Radiation safety. 1. Causes of unnecessary exposure to radiation. 2. Patient exposure to radiation (ALARA, ADA recommendations). 3. Factors that influence radiation safety (e.g., filtration, shielding, collimation, PID length). 4. Patient radiation concerns. 5. Informed consent or patient refusal for exposure to radiation. 6. Protocol for suspected x-ray machine malfunctions.
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Radiation Safety: Causes of Unnecessary Exposure to Radiation
Patient exposure to radiation (ALARA, ADA recommendations)
Factors that Influence Radiation Safety (Filtration, Shielding, Collimation, PID Length)
Patient Radiation Concerns and Informed Consent
Informed Consent and Patient Refusal for Exposure to Radiation
Protocol for Suspected X-ray Machine Malfunctions
Summary of Unit II: Radiation Safety
Practice and Review
Unit 2 Practice Quiz
Unit 3A: Standard precautions for equipment and supplies (25%)
Standard precautions for equipment and supplies according to ADA, CDC and OSHA, including but not limited to: 1. breakdown and setup of treatment room. 2. barriers. 3. position indicating and beam alignment devices. 4. clinical contact surfaces. 5. critical and semi-critical instrument sterilization
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Introduction to Unit IIIA: Standard Precautions for Equipment and Supplies
Breakdown and Setup of Treatment Room
Use of Barriers and Position Indicating Devices (PIDs)
position indicating and beam alignment devices.
Clinical Contact Surface Maintenance
Critical and Semi-Critical Instrument Sterilization
Unit 3A Summary
Unit 3B: Standard precautions for patients and operators
Standard precautions for patients and operators according to ADA, CDC and OSHA, including but not limited to: 1. hand hygiene. 2. PPE (donning, doffing). 3. cross contamination.
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Hand Hygiene and Infection Control
Personal Protective Equipment (PPE) Protocol
Cross Contamination Prevention Strategies
Government Agencies and Associations
Infection Control and Hazardous Materials Management
Unit IIIA: Comprehensive Summary
Unit IIIB: Summary Standard Precautions for Patients and Operators
Unit 3 Practice Quiz
Vocabulary Terms
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Glossary of Vocabulary Terms
Practice Exams
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RHS Practice Test
RHS Exam Prep

Radiation Safety and Patient Exposure

Introduction: In this module, we will delve into the crucial aspects of radiation safety, patient exposure to radiation, and the factors influencing radiation safety in dental radiography. Understanding these concepts is essential for ensuring the well-being of both patients and dental professionals.

1. ALARA Principle (As Low As Reasonably Achievable):

  • Definition: The ALARA principle is a fundamental concept in radiological health, emphasizing the importance of minimizing radiation exposure to the lowest possible level while still obtaining diagnostic image quality.
  • Explanation: Dental practitioners adhere to this principle to ensure patient safety. It involves carefully selecting exposure factors, employing protective measures, and using appropriate shielding to reduce unnecessary radiation exposure.

2. Patient Exposure to Radiation:

  • Definition: Patient exposure to radiation refers to the radiation dose received by individuals undergoing dental radiographic procedures.
  • Explanation: Dental professionals must be aware of the radiation doses associated with different radiographic techniques. This knowledge helps in making informed decisions about radiographic procedures and ensures patient safety.

3. Factors Influencing Radiation Safety:

  • Filtration:

    • Definition: Filtration involves the use of filters, typically made of aluminum, to remove low-energy, non-penetrating X-rays from the X-ray beam.
    • Explanation: Proper filtration improves the quality of X-ray beams while reducing patient radiation exposure.

  • Collimation:

    • Definition: Collimation restricts the size of the X-ray beam to the area of interest.
    • Explanation: Precise collimation minimizes unnecessary radiation exposure to adjacent tissues and organs.

  • PID Length (Position Indicating Device Length):

    • Definition: PID length refers to the distance between the X-ray tube and the patient’s skin when taking radiographs.
    • Explanation: Increasing PID length reduces radiation intensity and, consequently, patient exposure.

4. Patient Radiation Concerns:

  • Definition: Patient radiation concerns include worries and questions patients may have regarding radiation exposure during dental radiography.
  • Explanation: Addressing these concerns through effective communication and education fosters patient trust and cooperation.

5. Informed Consent and Patient Refusal:

  • Definition: Informed consent is the process of obtaining permission from patients before performing radiographic procedures. Patient refusal refers to a patient’s decision to decline radiographic examination.
  • Explanation: Dental professionals must explain the benefits and risks of radiographic procedures to patients, allowing them to make informed decisions. Respecting patient refusals while ensuring they understand the consequences is crucial.

6. Protocol for Suspected X-ray Machine Malfunctions:

  • Definition: This protocol outlines the steps to follow when there is a suspicion of X-ray machine malfunction.
  • Explanation: It is essential to have a systematic approach for addressing potential malfunctions to prevent unnecessary radiation exposure and ensure the safety of both patients and operators.

Conclusion: Radiation safety, patient exposure management, and adherence to established protocols are paramount in dental radiography. Understanding the ALARA principle, filtration, collimation, PID length, patient concerns, informed consent, and malfunction protocols collectively contribute to maintaining a safe and secure radiographic environment. Dental professionals must continuously prioritize these principles to provide high-quality care while minimizing radiation risks.

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