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PGH
Dental Radiography
| Definition | Term |
|---|---|
| involves taking imgs of teeth & jaws to help dentists diagnose & monitor various oral health issues. These X-rays can reveal structures that aren't visible during a regular dental exam, such asroots of your teeth, jawbone, & any hidden cavities/infections | DENTAL RADIOGRAPHY, commonly known as dental X-rays |
| HISTORY OR DENTAL RADIOGRAPHY - 1896 ______ ______ ______ __ - _____ Panoramic Radiography - Today: Digital X-Rays | Charles Edmund Kells Jr. : 1898 |
| TWO MAIN TYPES OF DENTAL X-RAY | 1 INTRAORAL X-RAYS Bitewing X-rays Periapical X-rays Occlusal X-rays 2 EXTRAORAL X-RAYS Panoramic X-rays Cephalometric X-rays |
| Show details of the upper and lower teeth in one area of the mouth. These dental X-rays help your dentist detect decay between your teeth or any changes that occur just below your gum line. | Bitewing xrays |
| Focus on one or two complete teeth from root to crown. Shows your entire tooth, from the crown to the root tip. This type of X-ray helps your dentist detect decay, gum disease, bone loss and any other abnormalities of your tooth or surrounding bone. | Periapical X-rays |
| Capture the roof or floor of the mouth to show full tooth development and placement. These images are helpful when diagnosing fractured or impacted teeth or evaluating the roots of your front teeth. | Occlusal xrays Occlusal images can also help identify cysts, abscesses and jaw fractures |
| a two-dimensional (2-D) dental x-ray examination that captures the entire mouth in a single image, including the teeth, upper and lower jaws, surrounding structures and tissues. | Panoramic X-ray |
| shows your entire head from the side. It shows your dentist the location of your teeth in relation to your jaw. Orthodontists (dentists who specialize in correcting bites) often use cephalometric X-rays to plan treatment | Cephalometric X-rays |
| A specialized type of X-ray that provides detailed 3D images of your teeth, soft tissues, nerve pathways, and bone in a single scan. | Cone-Beam Computed Tomography (CBCT) Unlike traditional CT scans, which use a fan-shaped X-ray beam, CBCT uses a cone-shaped beam, allowing for high-resolution images with a smaller field of view |
| These produce highly detailed images, making them invaluable for diagnosing and planning treatments for dental and oral conditions. They can show the exact position of teeth, roots, jawbone, and surrounding structures | CBCT scans |
| Common Uses of CBCT (1) | - Implant Planning: Helps in the precise placement of dental implants. - Orthodontics: Assists in planning orthodontic treatments. |
| Common Uses of CBCT (2) | - TMJ Disorders: Useful in diagnosing temporomandibular joint disorders. - Surgical Planning: Aids in planning surgeries for impacted teeth and other complex dental procedures |
| Reasons why Dentists may recommend or request Dental Radiographs: | 1. Detecting Cavities 2. Assessing Existing Fillings 3. Bone Loss Evaluation 4. Infection Detection 5. Evaluating Tooth Position 6. Identifying Cysts and Tumors 7. Fractures 8. Early Intervention |
| Radiation Protection in Dental Radiography | 1. Lead Aprons 2. Proper Positioning 3. Pregnant Patients 4. Ordering Radiographs Moderately |
| PREPARATIONS - Remove _______ and all accessories on the head area | dentures |
| TYPES OF HUMAN TEETH - Position in mouth: Front - Description: Chisel-shaped (sharp edge) - Function: Biting of pieces of food | Incisor |
| TYPES OF HUMAN TEETH - Position in mouth: Either side of incisors - Description: Slightly more pointed than incisors - Function: Similar function to incisors | Canine |
| TYPES OF HUMAN TEETH - Position in mouth: Behind canine - Description: 2 points (cusps), 1 or 2 roots - Function: Tearing and grinding food | Premolar |
| TYPES OF HUMAN TEETH - Position in mouth: Back - Description: 4 or 5 cusps, 2 or 3 roots - Function: Chewing and grinding food | Molar |
| Patient Positioning for Panoramic X-ray 1. Standing/Sitting Position: The patient should stand or sit as _____ as possible without slumping. If seated, ensure the ____ is straight | upright : spine |
| Patient Positioning for Panoramic X-ray 2. Head Position: a. MSP: The patient’s head should be straight, not tilted, with the MSP ______ to the floor. | perpendicular |
| Patient Positioning for Panoramic X-ray b. Frankfort Plane: This plane, which runs from the lower border of the orbit to the upper border of the ear canal, should be _______ to the floor. | parallel |
| Patient Positioning for Panoramic X-ray 3. Bite Block: The patient needs to place their _________ and ____________ correctly on the bite block. Most units have a notch indicating the proper location. | maxillary : mandibular incisors |
| Patient Positioning for Panoramic X-ray 4a. Tongue: Instruct the patient to place their entire tongue against the ______ and keep it there for the duration of the exposure. 4b. Lips: The patient should keep their lips ______ during the exposure | hard palate : together |
| Patient Positioning for Panoramic X-ray 5. Shoulders and Hands: The patient should hold the hand grips with their shoulders _____ and step forward slightly to avoid _________. | down : slumping |
| Patient Positioning for Panoramic X-ray 6. Chin Position: The chin should be positioned on the ___ ___, with the bite block adjusted so the ______ teeth are in the groove end-to-end. | chin rest : anterior |
| Patient Positioning for Panoramic X-ray 7. Eye: Have patient ______ their eyes so they do not follow the movement of the tube head. | close |
Created by:
yulyae