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Questions and Answers
What is a cephalogram?
What is a cephalogram?
What is the primary use of serial cephalogram studies?
What is the primary use of serial cephalogram studies?
What does cephalometric radiography help in differentiating?
What does cephalometric radiography help in differentiating?
What does a cephalogram obtained through cephalometric radiography help in making measurements of?
What does a cephalogram obtained through cephalometric radiography help in making measurements of?
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Which landmark is defined as the anterior most point of the maxillary bone?
Which landmark is defined as the anterior most point of the maxillary bone?
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What is the most anterior point of the fronto nasal suture in the median plane?
What is the most anterior point of the fronto nasal suture in the median plane?
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Which point is defined as the midpoint between pogonion and menton?
Which point is defined as the midpoint between pogonion and menton?
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What is the midpoint of the pituitary fossa known as?
What is the midpoint of the pituitary fossa known as?
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Which point is defined as the most prominent point in the midsagittal plane of the forehead?
Which point is defined as the most prominent point in the midsagittal plane of the forehead?
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What is the point where the lower border of the nose meets the outer contour of the upper lip?
What is the point where the lower border of the nose meets the outer contour of the upper lip?
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What is the line drawn from the superior margin of the external acoustic meatus to orbitale known as?
What is the line drawn from the superior margin of the external acoustic meatus to orbitale known as?
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Which plane is formed by bisecting the anterior incisors and the distal cusps of the most posterior in occlusion?
Which plane is formed by bisecting the anterior incisors and the distal cusps of the most posterior in occlusion?
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What is the line joining the Point A and Pogonion called?
What is the line joining the Point A and Pogonion called?
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What is the line joining soft tissue pogonion and the midpoint of the s-shaped curve between subnasale and the tip of the nose known as?
What is the line joining soft tissue pogonion and the midpoint of the s-shaped curve between subnasale and the tip of the nose known as?
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Which plane is formed by connecting the point gonion to gnathion at the inferior border of the mandible?
Which plane is formed by connecting the point gonion to gnathion at the inferior border of the mandible?
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What is the line joining the center of sella and nasion known as?
What is the line joining the center of sella and nasion known as?
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Study Notes
Cephalogram and Cephalometric Radiography
- A cephalogram is a type of radiograph used in orthodontics to measure the dimensions of the skull and jaw.
- The primary use of serial cephalogram studies is to track changes in the growth and development of the skull and jaw over time.
Cephalometric Analysis
- Cephalometric radiography helps in differentiating various anatomical structures and landmarks.
- A cephalogram obtained through cephalometric radiography helps in making measurements of various craniofacial structures.
Anatomical Landmarks
- The landmark defined as the anterior most point of the maxillary bone is Point A.
- The most anterior point of the fronto-nasal suture in the median plane is Nasion.
- The point defined as the midpoint between Pogonion and Menton is Gnathion.
- The midpoint of the pituitary fossa is known as Sella.
- The point defined as the most prominent point in the midsagittal plane of the forehead is Glabella.
- The point where the lower border of the nose meets the outer contour of the upper lip is Subnasale.
- The line drawn from the superior margin of the external acoustic meatus to Orbitale is known as the Frankfort Horizontal Plane.
- The plane formed by bisecting the anterior incisors and the distal cusps of the most posterior in occlusion is the Occlusal Plane.
- The line joining Point A and Pogonion is called the APog Line.
- The line joining soft tissue Pogonion and the midpoint of the S-shaped curve between Subnasale and the tip of the nose is known as the Soft Tissue Profile Line.
- The plane formed by connecting the point Gonion to Gnathion at the inferior border of the mandible is the Mandibular Plane.
- The line joining the center of Sella and Nasion is known as the S-N Line.
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Description
Test your knowledge of basic cephalometry with this quiz by Dr. Snigdha Pattanaik. Explore the principles and techniques of cephalometric radiography, including the production of skull radiographs and the interpretation of cephalograms.
