Dentistry Chapter 9 energized silver halide crystal is removed

Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 1

Film Processing

Chapter 9

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Slide 2

Learning Objectives

Lesson 9.1: Film Processing

and Solutions

1. Define the key terms associated with

processing of dental x-ray film.

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Slide 3

6. List and discuss the four procedural steps for

automatic film processing.

Learning Objectives

Lesson 9.1: Film Processing

and Solutions (Cont.)

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 4

Introduction

Purpose

To detail film processing procedures

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Slide 5

Film Processing

Steps that produce a visible image on a

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Slide 6

Film Processing Fundamentals

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 7

Film Processing Fundamentals (Cont.)

Silver halide crystals

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Slide 8

From Latent Image

to Visible Image

A chemical reaction

Reduction

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Slide 9

From Latent Image

to Visible Image (Cont.)

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 10

From Latent Image

to Visible Image (Cont.)

The film is:

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Slide 11

The Visible Image

Made of black, white, and gray areas

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Slide 12

Automatic Film Processing

Often preferred over manual film processing

Less processing time required

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 13

Automatic Processor

Automates all film-processing steps

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Slide 14

Equipment Requirements

Component parts of the automatic processor

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Slide 15

Component Parts of

the Automatic Processor

Uses a roller transport system to move dental

x-ray film through developer, fixer, water, and

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 16

Component Parts of

the Automatic Processor (Cont.)

Processor housing

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Slide 17

Step-by-Step Procedures

Before processing, the exposed dental x-ray

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Slide 18

Step-by-Step Procedures (Cont.)

Automatic film processing

Prepare the darkroom.

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 19

Care and Maintenance

Automatic processor

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Slide 20

Automatic Processor

Automatic processor requires routine

preventive maintenance.

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Slide 21

Processing Solutions

Levels must be checked at the beginning of

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 22

Manual Film Processing

Equipment accessories

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Slide 23

Film Processing Steps

Development

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Slide 24

Development

To reduce the exposed, energized silver

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 25

Rinsing

Stops the development process

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Slide 26

Fixing

Removes the unexposed, unenergized silver

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Slide 27

Washing

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 28

Drying

Films must be dried before they can be

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Slide 29

Film Processing Solutions

May be obtained as:

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Slide 30

Film Processing Solutions (Cont.)

To maintain freshness:

Must be replenished daily

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 31

Developer Solution

Developing agent

Hydroquinone

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Slide 32

Fixer Solution

Fixing agent

Sodium thiosulfate or ammonium thiosulfate

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Slide 33

Learning Objectives

Lesson 9.2: Processing Problems

and Maintenance

11. Identify the parts of the processing tank:

insert tanks, master tank, and lid.

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 9 Student Handout

Slide 34

15. Discuss the primary function of the

darkroom, as well as the location and size

Learning Objectives

Lesson 9.2: Processing Problems

and Maintenance (Cont.)

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Slide 35

20. Describe film processing problems that result

from time and temperature errors.

Learning Objectives

Lesson 9.2: Processing Problems

and Maintenance (Cont.)

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Slide 36

Equipment Requirements

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