Embryological Study on the Articular Cavity, Especially the Articular Cavity of the Jaw Articulation in Chick and Cat Embryos

Abstract

Many studies have been undertaken on the evolution of the articular cavity, and

Development of the temporomandibular joint in miniature pig embryos

“…The formation sequence of the superior and inferior articular cavities of pigs is the same as that in humans (Carini et al, 2007;Merida-Velasco et al, 1999;Radlanski et al, 1999;Wong et al, 1985). However, in the development of the articular cavity in other animals, such as mice, rats, sheep, cats, and rabbits, formation of the superior articular cavity occurs earlier than that of the inferior articular cavity (Kawai et al, 1983;Nagy & Daniel, 1991;Scott, 1951;Yamaki et al, 2005). The cavitation period of TMJ development was completed on E55.…”

“…In different animals, embryonic development of the TMJ has been studied, such as in rats (Yamaki et al, 2005), mice (Frommer, 1964), sheep (Scott, 1951), rabbits (Nagy & Daniel, 1991), and cats (Kawai et al, 1983). The TMJ developmental processes seem to be comparable, although the time courses differ each other, considering the proportions to whole gestational period.…”

“…Additionally, in rodents, the superior articular cavity is formed first before the inferior articular cavity is formed, and the articular disc rarely changes into fibrocartilage with increasing age (Suzuki & Iwata, 2016). Studies on the anatomical structure and embryonic development of the TMJ in different animals (Bermejo et al, 1993;Kawai et al, 1983;Nagy & Daniel, 1991;Scheman, 1967;Tomasello et al, 2016) have shown that the TMJ of pigs is similar to that of humans with respect to size and disc shape. Additionally, pigs and humans have similar chewing characteristics.…”