This study proposes to measure and compare anthropometric measurements between toothed and toothless maxillas. 26 human skulls were used with: 13 toothed and 13 toothless maxillas. The measurements were made between the distances of the alveolar ridge (AR): the anterior nasal spine (ANS), to the incisive foramen (FI) and the palatine foramen, greater (FPMA) and lower (FPME) on both sides by two evaluators. The data obtained showed that the average of the measurements were correspondingly higher in toothed maxillas than in toothless, for all measurements in any one of the evaluators. The AR-ANS (p = 0.001), IF-AR (p = 0.006), AR-FPMA right (p = 0.001) and AR-FPMA left (p <0.001) and AR-FPME on both sides (p = 0.001) demonstrating significant differences between the two types of maxilla. Thus we verify that, as the tooth loss occurs, irreversible anatomical changes take place in the maxilla bone, which must be taken into account in the design and manufacture of prostheses and osseointegrated implants.

Este estudio propuso medir y comparar las medidas antropométricas entre los maxilares con y sin dientes. Fueron utilizados 26 cráneos humanos, 13 maxilares con dientes y 13 sin dientes. Las mediciones fueron realizadas a ambos lados por dos evaluadores entre las distancias del reborde alveolar (RA): a la espina nasal anterior (ENA), al canal incisivo (CI) y a lo foraámenes palatinos mayor (FPMA) y menor (FPME). Los datos mostraron que la media de las mediciones fueron proporcionalmente mayores en las maxilas con dientes, para todas las mediciones en cualquiera de los evaluadores. El RA-ENA (p = 0,001), AR-CI (p = 0,006), RA-APMA derecho (p = 0,001) y RA-APMA izquierdo (p <0,001) y RA-APME en ambos lados (p = 0,001), comprobando la existencia de diferencias significativas entre los dos tipos de maxila. Fue verificado que a partir de la pérdida dental ocurren irreversibles cambios anatómicos en el maxilar, que deben ser considerados en el diseño y fabricación de prótesis e implantes osteointegrados.

Estudou-se a influência da cafeína, administrada a ratos, no desenvolvimento somático e sensorial-motor da prole. Ratos Wistar fêmeas foram divididos em grupo controle e grupo tratado e receberam água e solução de cafeína a 0,1%, respectivamente. A prole, também dividida em grupo controle e grupo tratado, foi monitorada diariamente até o 20º. dia de vida para se observar as alterações no desenvolvimento somático neural. O grupo tratado apresentou peso reduzido no dia do nascimento e nos 1º, 5º., 15º e 20º. dias de vida; comprimento focinho-ânus mais curto (avaliação efetuada diariamente); comprimento focinho-cauda mais curto no dia do nascimento e nos 1º, 5º., 15º e 20º. dias de vida e sinais de retardamento da maturação somática e sensorial-motora. Esses resultados permitem que se conclua que a administração da cafeína a ratos afeta o desenvolvimento somático e sensorial-motor da prole.

The influence of caffeine, administered to rats, on the somatic and sensory-motor development of the offspring was investigated. Female Wistar rats were divided into a control group and a treated group and received drinking water and a 0.1% solution of caffeine orally, respectively. The offspring, also divided into a control group and a treated group, received daily monitoring until the 20th day of life to verify alterations in somatic neural development. The offspring of the treated group had reduced weight on the day of birth and on the 1st, 5th, 15th and 20th days of life; shorter snout-anus length (evaluation done daily); shorter snout-tail length on the day of birth and on the 1st, 5th and 10th days of life, and signs of retardation of somatic and sensory-motor maturation. These results allowed the conclusion that administration of caffeine to rats affects somatic and sensory-motor development of offspring.