The present article review, in the recent literature, some anatomical and biomechanical concepts about the temporomandibular joint in order to the better understanding of the physiology and dysfunction of the articulation. We point out the references about the function of the meniscus in the mandibular dynamics and the functional matrix concept and its relationship to temporomandibular joint dysfunction.
Dens invaginatus is an abnormal enamel growth first described by Salter in 1855. It has an incidence between 0.4 - 10%, and the tooth most frequently affected is the lateral upper incisor. Its etiology is not explained. There are many asymtomatic cases and others with symptoms derived from periapical lesions. Treatment must be as conservative as possible. A bibliographic review has been made and we demonstrate a radiologic sequence of the many cases observed in our Service in the last two years.
At the gingiva there are two cellular populations with mediation capacity in the immunoregulation, whose mechanisms seen to be implicated in the pathogenesis of the periodontal disease. One of these populations is formed by the macrophages and the other one by the Langerhans cells belonging to the epithelia. In this paper wr are demonstrating that both populations keep an inverse proportional relation in the two sides of gingival epithelium. In the oral side, the Langerhans cells are predomiating, while in the periodontal pocket they are in small number, in comparison with the macrophages, which are highly abundant and forming a subepithelial band.
Oral health has been studied in a group of 680 students. E.F.H. program has been integred in the contents of the General teaching.
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：