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Different Types of Radiographs, Module 7 - Coggle Diagram
Different Types of Radiographs
Bitewing X-rays (BW)
Used to capture images of the posterior teeth (premolars and molars) while the upper and lower teeth are in occlusion. These images show the crowns of both the upper and lower posterior teeth on the same film.
Used to detect overhanging margins on restorations.
Identify recurrent decay beneath existing restorations.
Assess bone levels and the destruction of the alveolar bone.
Used for the early detection of dental caries between contact points where visual inspection is limited.
Periapical X-rays (PA)
They allow the operator to see the whole tooth. This includes the crown, the root, and surrounding bone. :
It can be used to diagnose apical infections and checking progress during endodontic treatment.
Occlusal X-rays
They provide a broader view of the dental arches and surrounding structures, often showing more detail. This may include cysts, unerupted teeth, and supernumerary teeth.
Dental Pantomograph (DPT)
This shows all the teeth in both the upper and lower jaws, along with surrounding bone and jaw structures.
Used for detecting unerupted 3rd molars and canines.
Assessing the overall development of the permanent dentition.
Identifying widespread periodontal disease.
Detecting abnormalities in the jaws or TMJ
Cephalometric X-rays
Used in orthodontics for diagnosis, treatment planning, and monitoring changes over time.
It helps to assess the relationship between the skull, jaws, and teeth which is essential for planning braces or jaw alignment treatments.
This radiograph provides a front or side view of the patient's entire skull. To ensure accuracy, the patient's head is held still in a fixed position using a frame with ear posts, which gently fit into the ears.
Lateral Oblique X-rays
They focus on one side of the lower jaw, including the posterior teeth, angle, ramus and condyle of the mandible, and the posterior of the maxilla.
It is used when more detailed imaging of a specific area of the mandible is required, and to monitor the developing dentition in children or adolescents.
Used to detect impacted or unerupted teeth
Used to assess mandibular fractures
Used to detect cysts, tumors, or other abnormalities in the mandible
Used to detect infections, e.g. abscesses
Cone Beam Computer Tomography (CBCT)
3D image of teeth, jaws and surrounding structures.
It provides more detail than 2D radiograph. It allows clinicians to examine bone, tooth anatomy, and soft tissues with high accuracy, making it ideal for complex cases.
Implant planning - Accurately measures bone density and volume ensuring precise planning for dental implants.
RCTs - It helps identify the complex anatomy of root canals detecting fractures and abnormalities that may not be visible on conventional radiographs.
Orthodontic planning - Assists in assessing jaw alignment and tooth positioning for more accurate treatment planning.
Module 7