40 Questions
What is the ideal distance between the CG and the alveolar crest?
Half a millimeter to two millimeters
What is the effect of overexposure on a dental radiograph?
It makes everything look darker and burns out fine details
What is the criterion for diagnosing mild periodontal bone loss on a radiograph?
Up to 15% of the root length
What is the term for the inflammation of the gingiva?
Gingivitis
What is the term for the space between the tooth and the surrounding bone?
PDL space
What is the primary indicator of a horizontal periodontal bone loss?
The lines drawn from C.J. to C.J. and the alveolar crest are more than 2-3mm away from each other and parallel
What type of bone loss is characterized by non-parallel lines drawn from C.J. to C.J. and the alveolar crest?
Vertical bone loss
What is the term for the erosion of the bone of the cortical outline?
Erosion of the cortical outline
What is the term for the loss of the alveolar crest?
Blunting of the alveolar crest
What is the characteristic of the lines drawn from C.J. to C.J. and the alveolar crest in a healthy periodontium?
The lines are parallel and less than 2mm away from each other
What is the characteristic of a periodontal abscess on a radiograph?
A thin black line communicating the oral cavity
What type of periodontal bone loss is often associated with younger individuals and affects specific teeth?
Aggressive periodontitis
What is the result of the superimposition of the cortical plates on a radiograph?
A smudged image with reduced opacity
What is the term for a gap or hole in the bone that can be seen clinically?
Vacation
What is the relationship between occlusal trauma and periodontal bone loss?
Occlusal trauma is a cause of periodontal bone loss
What is the primary limitation of using a small field of view scan to evaluate mild implant bone loss?
Severe metal artifact that obscures adjacent structures
What is the significance of the white line in assessing periodontal bone loss?
It defines the crest of the alveolar bone
What is the primary advantage of using a PA radiograph over a small field of view scan in evaluating periodontal bone loss?
More accurate detection of mild periodontal bone loss
What is the characteristic radiographic feature of a chronic periodontal lesion?
A sclerotic lesion
What is the purpose of drawing lines from CG to CG and defining the alveolar crest in assessing periodontal bone loss?
To determine the severity of periodontal bone loss
What can a uniform widening of the periodontal ligament space be associated with?
Systemic diseases
What can cause localized periodontal bone loss in specific areas?
Overhangs from adjacent restorations
What can be indicative of occlusal trauma on one side of a tooth?
Widening of the PDL space on one side
What can be seen on a radiograph to diagnose periodontal bone loss?
Condition of the alveolar crest
What can cause widening of the periodontal ligament space?
All of the above
What is a limitation of intraoral imaging?
It projects a 3D image onto a 2D image, losing the third dimension
What can be hidden by higher bony walls in intraoral imaging?
Bony defects and overlapping teeth
What is underestimated on radiographs?
Bone destruction
What can be difficult to distinguish on radiographs?
Carries and proximal bone loss
What is not visible on radiographs?
Soft tissue
What is the characteristic feature of the bone loss observed in the given radiograph?
Sparse bone loss with granular appearance
What is the most likely diagnosis based on the patient's radiograph and symptoms?
Hematopoietic malignancy
What is the significance of the lack of improvement in the patient's periodontal bone loss after scaling?
It suggests the presence of a malignancy
What is the characteristic of the bone loss observed in the radiograph that is not typically seen in periodontal bone loss?
Scooped out lesions
What is the most likely explanation for the patient's bilateral periodontal bone loss?
Systemic disease
What is the significance of the loss of lamina dura in the radiograph?
It is a sign of malignancy
What is the characteristic feature of the bone loss observed in the radiograph that is consistent with fibro dysplasia?
Sparse bone loss with granular appearance
What is the most likely diagnosis based on the patient's symptoms and radiograph?
Hematopoietic malignancy
What is the significance of the root resorption observed in the radiograph?
It is a sign of malignancy
What is the characteristic feature of the patient's periodontal bone loss that is not typical of periodontal disease?
Root resorption
Identify and diagnose different types of bone loss in dental radiology, including horizontal and vertical bone loss. Understand changes in morphology and how to analyze radiographic images.
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