AI

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AI

abbreviation for ARTIFICIAL INSEMINATION.
References in periodicals archive ?
Developmental defects of the enamel are caused by various etiological factors, such as amelogenesis imperfecta, overexposure to fluoride along the mineralization of the enamel, different disorders, or trauma.
Zoupa et al., "Enamel-free teeth: Tbx1 deletion affects amelogenesis in rodent incisors," Developmental Biology, vol.
[5] During amelogenesis, the enamel changes from a protein-rich soft tissue to a hard tissue entirely devoid of protein, and this change is dependent on certain molecular and cellular activities, which in turn, depends on the genes mentioned above.
The frequency of other anomalies was as follows: molar-incisor hypomineralization 0.25%, turner hypoplasia 0.1%, fluorosis 0.1%, odontoma 0.1%, fusion 0.09%, gemination 0.06%, amelogenesis imperfecta 0.05%, dens invaginatus 0.03%, talon cusp 0.02%, taurodontism 0.02%, macrodontia 0.02%, dentinogenesis imperfecta 0.02%, dilaceration 0.02%, ectopic eruption 0.01% and microdontia 0.01%.
(12) El proceso de formacion del esmalte se denomina en conjunto amelogenesis, mientras que el proceso de mineralizacion como tal, que se da entre iones y proteinas secretadas por las celulas, se denomina biomineralizacion.
Reduced hydrolysis of amelogenin may result in X-linked amelogenesis imperfecta.
Among the topics are the slim concept for ideal peri-implant soft tissues, the biodigital alveolar model: an alternative for a predictable esthetic outcome with ultra-thin porcelain veneers, the concept of an angulated screw channel system, balancing surgical and prosthetic procedures to restore the severely resorbed esthetic zone, and CAD/CAM-guided patterns for full-mouth reconstruction using lithium disilicate pressed ceramics in a patient with amelogenesis imperfecta.
This condition is due to disrupted ameloblastic function during the transitional and maturational stages of amelogenesis. 11, 13 MIH was defined in 2001 by Weerheijm; it describes the clinical picture of enamel hypomineralization of systemic origin.
De alli que durante la amelogenesis los nudos de esmalte se eleven mientras se conectan entre si mediante crestas--producto de las tensiones por el crecimiento desigual--y dejen entre las cuspides una serie de depresiones lineales y fosomorfas--como consecuencia del cese de actividad de los ameloblastos--, lo que da como resultado la conformacion del patron de cuspides y surcos de los dientes posteriores temporales y permanentes.
Esta variante se caracteriza por la presencia de celulas granulares dentro del islote ameloblastico y corresponden a celulas epiteliales transformadas con un citoplasma amplio, ocupado por granulos que se tinen intensamente con la eosina y que se describen normalmente durante el proceso de amelogenesis (figura 1).