The objective of this work is to study the hyperbolic space-time curves that we perceive in our daily lives through images obtained in different geographical locations on Earth. A bibliographic review of scientific works has been made on hyperbolic curves in medicine, electromagnetic fields, circadian rhythms, and space-time perpendicular to the movement of an organ. On the internet, images in conical perspective have been selected, of cities located at different longitudes and latitudes within the geography of the Earth. They have tried to identify hyperbolic space-time curves. They have then been compared with the hyperbolic curves of the Earth’s magnetic field. Finally, we determine its relationship with the hyperbolic curves of human physiology. We have as conclusions: 1. Human vision is hyperbolic because the space in which we live is deformed by “general hyperbolic curves” that exist at any longitude and latitude of the earth’s geography. 2. The lines of force of the Earth’s magnetic field are hyperbolas that follow “local hyperbolic curves” since they can vary in intensity and even reverse their polarity over time. 3. In the physiology of the human body there are hyperbolic curves that are similar to the lines of force of a magnet and the magnetic field of the Earth. Human physiology can be conditioned by general hyperbolic curves and by local hyperbolic curves. There is an adaptation to that hyperbolic deformation of the space in which we live.

Perspective” is the art of representing objects in such a way that they are visualized from the observer’s point of view. Using this technique, a three-dimensional (3D) world is projected onto a two-dimensional (2D) Surface. “Conical perspective” is the one that interests us in hyperbolic medicine since it is the one that most closely approximates the reality we see. We call “hyperbolic medicine” (abbreviated “Medipérbola”) to the study of hyperbolic curves that occur in the physiology of a living being, especially in humans, about other hyperbolic curves that may be in nature, such as electromagnetic fields, expansion-contraction systems in motion, circadian rhythms, and space-time relativity. We think that when we observe an object, the conical perspective of that image is not parallel lines that converge at a point, but hyperbolic curves of space-time, and the hyperbolic curves that occur in human physiology would be related to them. The relationships between conic perspective, hyperbolic curves of space-time, and hyperbolic curves of human physiology have been studied. Conclusions: 1. Conic perspective represents images that travel at the speed of light to the eye of the observer, following hyperbolic curves of space-time. 2. Human vision is hyperbolic because the space in which we live is deformed by “hyperbolic curves”, which exist in any longitude and latitude of the earth’s geography. 3. Human physiology can be conditioned by these hyperbolic curves, to adapt to this hyperbolic deformation of the space in which we live.

We call “Hyperbolic Medicine” the study of the hyperbolic curves that occur in the physiology of a living being, especially in humans, about other hyperbolic curves that may be in nature, such as electromagnetic fields, expansion-contraction systems in movement, circadian rhythms, and space-time relativity. In nature, there is space-time relativity, perpendicular to the axis of movement of an organ, which gives hyperbolic curves. The lines of force of an electromagnetic field act in human physiology through hyperbolic curves. In hyperbolic human physiology, there are dipoles, multipoles, and monopoles. They can be fragmented into smaller elements like a magnet and maintain their same characteristics at smaller scales. When we move the N pole of a magnet away from a conducting wire, an S monopole is generated, since both S and N poles give “hyperbolas moving away”. On the other hand, when we approach the S pole of a magnet to a conducting wire, an N monopole is generated, since both S and N poles give “hyperbolas approaching”. If the conducting wire is a human organ, we speak of Lenz’s Law in hyperbolic medicine.

Between 1991 and 1993, the data of 479 clinical records were compiled about caries in the permanent teeth of subjects of both sexes, whose dental examinations were carried out in a private dental clinic in the city of Salamanca and who were distributed by age into groups of 16–65, 26–55 and 36–15 years. Using the method known as system of expansion-contraction, we showed that caries has a non-linear dynamic, whose evolution in time is difficult to predict and which has a fractal geometry. This study shows the fractal geometry of caries and to achieve this uses a little-known method which will be of great use in future research.

González-González JM. Limpieza bucodental mediante técnicas de adsorción con material desechable. Nueva alternativa de higiene oral AVANCES EN ODONTOESTOMATOLOGÍA/299 RESUMEN El objetivo de este trabajo es mostrar diferentes materiales para hacer limpieza bucodental, con alto poder de adsorción, atóxicos y desechables (de usar y tirar), que masticados en la boca permitan arrastrar la placa bacteriana. Material y métodos: Se ha seleccionado información válida para el estudio en la base de datos medline, red de internet y bibliografía de archivos propios. Resultados: Entre los materiales hallados están: las sepiolitas, zeolitas, agares, carbón activo, polímeros de la familia de las gomas y goma arábiga, siliconas, caolín, hojas de té, cenizas de neumáticos y deshechos de plantas modificadas químicamente. Discusión: Sepiolitas y zeolitas podrían incorporarse a gomas-tipo chicle-para ser masticados y luego desechados. Polímeros de la familia de los agares y de la familia de las gomas podrían ser aplicados sobre la superficie dental, de forma que al ser retirado pueda arrastrar la placa dental. Conclusiones: Proponemos una nueva alternativa al cepillado dental, mediante material desechable de gran adsorción, aunque está todavía en fase de estudio y aplicabilidad en estomatología.