Accurately transferring a maxillary model in three planes of space to an articulator is essential for predictability and accuracy whether we are using the models for diagnostic or restorative purposes. If we work with mounted models where the radius of the arc of rotation, or the position of the maxilla are different then the clinical reality all of the tooth contacts other then intercuspal will be different int he mouth than what we see on the bench top. Additionally we are looking to transfer esthetic information, incisal plane compared to the horizon, which can not be accomplished if the upper model is hand mounted. The Kois Dentofacial Analyzer is a quick, simple and predictable way to mount the maxillary model to ensure functional and esthetic predictability. This video demonstrates capturing the record.
Dr. Joon Kim says
March 5, 2019 at 10:35 AMHi, Dr . Lee Ann Brady. I liked your video about Kois analyzer.
It’s easy to check midline by using forehead, nose, and chin.
But I don’t understand how accurately we can capture parallel line from the horizon.
Exactly what are we using to define the horizon from lateral view?
I think capturing the wrong horizon angle can create a cant from the lateral view and many things can go wrong.
Lee Ann Brady says
March 5, 2019 at 10:45 AMYou parallel to the horizon front to back, either visually or you can use a bubble level with a magnet on the DFA. I do it visually. This is your reference to Frankfurt horizontal.