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- 131 956
Sanjay Mallya
United States
เข้าร่วมเมื่อ 10 เม.ย. 2020
Nasopalatine Canal
This video describes the radiologic anatomy of the nasopalatine foramen and provides practical guidance to evaluation and decision making when the radiologic appearance is atypical.
มุมมอง: 4 282
วีดีโอ
The Buccal Object Rule-Localize objects in the jaw
มุมมอง 2.4K3 ปีที่แล้ว
A quick description of the principle and application of the buccal object rule
Intraoral Radiologic Imaging
มุมมอง 6K3 ปีที่แล้ว
An introduction to periapical, bitewing, and occlusal imaging
Principles of Cephalometric Imaging
มุมมอง 10K3 ปีที่แล้ว
This video describes the general principles of making cephalometric images.
Principles of Panoramic Image Formation II-Real, double, and ghost images
มุมมอง 14K3 ปีที่แล้ว
Describes principles of formation of real, double, and ghost images
Projection Geometry Principles
มุมมอง 6K3 ปีที่แล้ว
Describes the basic principles of projection geometry with practical implications for dentomaxillofacial imaging
Radiologic Image Quality: Applications for Dental Imaging
มุมมอง 1.6K3 ปีที่แล้ว
Understand basic concepts of radiologic image quality and apply that to make high quality diagnostic images
Image Receptors in Dental Radiologic Imaging. Part 2: Photostimulable Phosphors
มุมมอง 6K3 ปีที่แล้ว
Introduction to photostimulable phosphors in dentistry
Image Receptors in Dental Radiologic Imaging. Part 1: CMOS Sensors
มุมมอง 9K3 ปีที่แล้ว
The basic construct and function of a CMOS sensor
Radiation Protection: Reducing Operator Dose
มุมมอง 2.6K3 ปีที่แล้ว
Using shielding position and distance to minimize radiation exposure.
Communicating Radiation Risk
มุมมอง 9303 ปีที่แล้ว
Understand risks from diagnostic dental x-ray imaging...and effectively communicate these risks to your patients and other healthcare providers
Radiation Units: Understanding Applications for Diagnostic Radiology
มุมมอง 6K3 ปีที่แล้ว
Describes the relevant units of air kerma, absorbed dose and effective dose with practical situations where these units are used.
Constant Potential Dental X ray Units
มุมมอง 1.2K3 ปีที่แล้ว
Principles and practical implications of constant potent x-ray units
Radiologic Detection and Evaluation of Caries
มุมมอง 4.8K3 ปีที่แล้ว
Radiologic Detection and Evaluation of Caries
Principles of Panoramic Imaging I: Creating the image layer
มุมมอง 22K3 ปีที่แล้ว
Principles of Panoramic Imaging I: Creating the image layer
Basic Radiologic Interpretation of Periodontal Disease
มุมมอง 7K4 ปีที่แล้ว
Basic Radiologic Interpretation of Periodontal Disease
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Beautifully explained
Thanks a lot, i really love the book❤
شرح جميل 😃
Amazing video sir!
❤🎉
Video lecture directly from the author of one of the chapters of white and pharaoh.. what else to ask for
🙌🙌
at what angle is the piece of copper or tungsten (anode) cut?
why M=a/ (a-b) not M=( a+b)/a ?
Very interesting 👌
Excellent and thorough explanation 👍🏻👏🏻
Nice video !!! Thank you dr. ❤
sir u explained so nicely. thank you so much.
Thanks for the information...wish you spoke a little slower though
The interesting thing about the radiography profession is that 75% of qualified practitioners don't understand the geometry of projections. They assume that changing the tube angle will also change the geometry of what is shown. This is not the case because tube angulation does not change the position of the focus, only the angle of the tube and the centring point. Here is my video on the subject. th-cam.com/video/QRT7wpOZmko/w-d-xo.html One of the crimes in the history of radiography was The Townes Projection which required needless dose to the face if the directions were followed, whereas a slight reduction in angle would cause collimation to the brow line.
There is an additional important consideration when doing dental radiography. When doing skull imaging, the source-receptor distance is typically 100 cm. In contrast, the source-object distance is typically 8 inches to 12 inches, and very infrequently, 16-inches. This distance is set by the length of the extension collimator used by the manufacturer and model of the x-ray unit. The collimator may be round (no more than 7cm diameter) or rectangular (approximately 3.5 cm x 4.5 cm). At this short distance, achieving beam parallelism is challenging and angulation of the beam will cause distortion. Practically, this is demonstrated when improper angulation results in foreshortening or elongation of the tooth and can impact management decisions.
@@sanjaymallya4667 I spent a few months doing dental radiography but 3 years of orthodontic work. I claim to have taken 10,000 OPGs and 8,000 lat ceph. I am retired now.
Nice! Lateral ceph are standardized projections with a 5 foot source-to-midsagittal plane distance. Panoramic images are formed differently than standard projection imaging. The speed of the receptor across the collimator influences horizontal distortion. m.th-cam.com/video/5uRBGRh47lY/w-d-xo.html Thanks for your comments and hope you are enjoying retirement!
@@sanjaymallya4667 Thanks. I am. I look at all tutor TH-cam and critique what they do. The population dose seems to be about 30% higher than required though digital technology prevents radiographers from opening the collimation beyond what is required. When I did my lat cephs for orthodontists, using a Siemens machine, I added lead rubber masking to the tube to ensure the thyroid didn't get primary beam.
Thank you Dr. Mallya for all your excellent videos. I saw a CBCT scan of the anterior maxilla, and the patient had no nasopalatine canal at all. It was complete solid alveolar bone except for the intermaxillary suture line. I can find no articles on aplasia of the nasopalatine canal. Can you please comment on this and how rare it is? Thank you again!
Excellent explanation in simple words .
Glad you liked it
Nice
Thank you sir
3:15
can I get the power point copy ?
Why Indian people always speak fast 😩
Thank you Dr. Mallaya
Great
thank you for your video <3
This is a wonderful video, probably the best I found on TH-cam describing the different layers of the sensor.
Sir what is the difference between CMOS and photon counting detector technology??and which one is better
Best video... Thanks a lot.. it is GOAT
Thank you 😊
I have a question..why there is a latency period of 10-15 years to radiation induced cancer. for all this long what will happen . whether the cell will be in dormant state or else its the radiation in the dormant state. please respond..
My guess is that it takes time for the cell with damaged DNA to replicate and then re-replicate again and again before a noticeable neoplasia is observed.
Why would you see less bone marrow on one side of the mandible in a CBCT scan?
Thank you!
You are brilliant! I love it. Well explained with awesome clear illustration Thank you a lot 🌸🌸🌸
Thank you for this excellent video , will surely share with my students!
Thank you, Dr. Mallya, for the beautiful presentation - very helpful and very informative; complete with radiographs and references. I am more grateful that this is available on TH-cam. I hope to be able to read your book.
it was great, thanks
What are the effects of x ray photon on heart brain bone marrow
Thank you Dr Mallya for an excellent presentation. Great Job!