Dr. Paul Rojas Gutiérrez

12/12/2025

Mi próximo tattoo

16/10/2025

Curves in Dentistry

17/06/2025

Si eres de esa clase de padres que gusta conservar algunos recuerdos de la niñez de sus hijos, es posible que hayas guardado sus primeros...

08/03/2025

🚫 Anatomy of the edentulous upper arch

27/02/2025

Una investigación emergente sugiere que la enfermedad de Alzheimer puede estar relacionada con un culpable inesperado: la enfermedad de las encías.

Un estudio descubrió la presencia de Porphyromonas gingivalis, una bacteria responsable de la periodontitis crónica, en el cerebro de los pacientes de Alzheimer fallecidos.

Los investigadores encontraron que cuando los ratones fueron infectados con las bacterias, colonizaron sus cerebros y provocó la producción de beta amiloide, una proteína comúnmente asociada con el Alzheimer. Esta evidencia fortalece la hipótesis de que la enfermedad podría tener orígenes infecciosos en lugar de ser únicamente un trastorno neurodegenerativo.

26/02/2025

Tooth loss is a real evolutionary phenomenon — it's happening to humans.

Human faces are becoming shorter, and it's causing us to lose our teeth.

Due to changes in our diet our faces are shrinking, and our smaller jaws mean there is less room for teeth.

As a result, most babies are now being born without wisdom teeth.

According to Dr Teghan Lucas, of Flinders University in Adelaide, this indicates that humans are still evolving — and at a rapid rate.

Dr. Lucas and a team of scientists discovered that people are undergoing a kind of "micro-evolution" where evolutionary changes can be noticed over a short period of time. Some of the changes also include weaker jaws, which is likely due to our dependence on fire and processed food more than ever before.

Scientists also found that some people are being born with additional bones in their arms and legs, as well as an extra artery in their arm. They also found that some people are born with abnormal connections of two or more bones in their feet.

The research is published in the Journal of Anatomy. However, this isn't the only study to reach these conclusions.

Learn more:
https://www.nature.com/articles/s41598-020-58565-8

04/02/2025

22/01/2025

El esmaltado dental - no hueso - es la sustancia más dura en el cuerpo humano:

El esmaltado dental, la capa externa de tus dientes, contiene el título de la sustancia más dura del cuerpo humano, incluso más dura que el hueso. Sin embargo, su fuerza se enfrenta a un desafío formidable: tu boca es un ecosistema próspero lleno de más de 300 especies de bacterias sólo en placa dental.

A pesar de la notable durabilidad del esmalte, no puede soportar el asalto implacable de estas bacterias sin el cuidado adecuado.

La caries dental, comúnmente conocida como caries, se desarrolla cuando la placa se acumula en la superficie de los dientes.

Esta biofilm pegajosa alberga bacterias que producen ácidos a medida que digieren los azúcares, erosionando gradualmente el esmalte y llevando a la decadencia. Sin intervención, este proceso puede comprometer la integridad estructural de tus dientes, subrayando la importancia de una buena higiene bucal para proteger tu sonrisa.

📸✍️: ScienceNaturePage

21/01/2025

Human faces are becoming shorter, due to changes in our diet, and our smaller jaws mean there is less room for teeth. As a result, most babies are now being born without wisdom teeth.

According to Dr Teghan Lucas, of Flinders University in Adelaide, this indicates that humans are still evolving — and at a rapid rate.

Dr. Lucas and a team of scientists discovered that people are undergoing a kind of "micro-evolution" where evolutionary changes can be noticed over a short period of time. Some of the changes also include weaker jaws, which is likely due to our dependence on fire and processed food more than ever before.

Scientists also found that some people are being born with additional bones in their arms and legs, as well as an extra artery in their arm. They also found that some people are born with abnormal connections of two or more bones in their feet.

The research is published in the Journal of Anatomy. However, this isn't the only study to reach these conclusions.

Learn more: https://www.nature.com/articles/s41598-020-58565-8