A contribution from Sabine von Sinner
As a pioneer in dental research and teaching, Professor Dr. Albert Gerber has focused in particular on prosthetic stability and the physiological degree of freedom in static and functional occlusion.
He suggested positioning the posterior teeth so that they are slightly inclined lingually. The lingual positioning helps to improve the retention of full dentures by allowing a better fit that ensures greater stability during function. To this end, he redesigned the profile of the posterior teeth to optimize the contact relationship between the cusp and the fossa ("mortar-pestle").
This technique recommends positioning the upper and lower teeth in relation to each other, also known as a 1:1 relationship or tooth-to-tooth relationship.
Thanks to a recording of the centered relationship, the cenital position of the condyle in the socket is determined without compression of the disc and transmitted to the largest masticatory unit, thus avoiding displacement of the prosthesis and reducing stress on the soft tissue.
Prof. Dr. Gerber's philosophy is complemented by an articulator that integrates the principles of the inverted cone and enables the lower jaw to perform all movements freely and in a natural analogy.
Of course, before implementing this type of setup, a careful clinical assessment is essential, taking into account the morphology of the dental arches and the functional needs of each patient.
Conclusion
The lingual positioning of the posterior teeth proposed by Prof. Dr. Gerber is an approach that aims to optimize the function, aesthetics and stability of full dentures through thoughtful positioning of the teeth. For a precise and individualized implementation, it is recommended to consult a qualified dentist who can adapt these concepts to the specific needs of the patient.
In which cases should this set-up method be chosen? This set-up concept is used in patient cases where the stability of the lower and upper denture needs to be improved. The tooth-to-tooth set-up takes into account all the important aspects that promote optimum retention.
If you would like to learn more about this constellation technique or simply refresh your knowledge, we offer various GERBER constellation courses in the SSOP program. With facts about the theory, interesting application examples and a practical part in which the constellation is practiced together.
