PPT-Tooth Development, Eruption, and Occlusion

Development Development Eruption Time and Sequence Proximal Contacts Proximal Contacts Embrasures Embrasures Embrasures Occlusion Occlusion Occlusion Occlusion Occlusion Occlusion Occlusion. Prior to placement of the rubber dam and the cavity preparation a Use articulating paper to locate the existing occlusal contacts with the opposing teeth b Determine the level of the defective marginal ridges in relation to the adjacent tooth teeth . development. , . eruption. and . anatomy. of . primary. . teeth. Tooth. . development. Inductio. (6-7thweek . i.u. .). Initation. . stage. dental. . lamina. Proliferatio. . Toothbud. (8th . Dynamics of the tooth development. Development of teeth. The dynamics of the tooth development is studying the chronological stages of the primary and permanent teeth development, characterized by quantitative and qualitative differences.. OUT LINE. NORMAL DENTAL DEVELOPMENT. ABNORMALITIES OF ERUPTION AND EXFOLIATION. MIXED DENTITION PROBLEMS. PLANNED EXTRACTION OF DECIDUOUS TEETH. WHAT TO REFER AND WHEN. 1. NORMAL . DENTAL . DEVELOPMENT. Dr:Nahvi. Force eruption. Force eruption. Unerupted. tooth. Fractured tooth. Tooth eruption . . . A permanent tooth should erupt:. 6 months after natural exfoliation of its predecessor. . Eruption delayed :. . Loss. The loss of teeth is the most common cause of a physiologic occlusion developing into a non-physiologic occlusion. In a healthy complete dentition, there is a an equilibrium of forces from lips, cheeks, tongue, neighboring teeth those help to maintain a relative stability of individual teeth. Period of the mixed dentition. 6 to 12 years of age . Mixed dentition.. Shedding of primary teeth. Causes of shedding of primary teeth.. Resorption pattern of anterior and posterior primary teeth.. Shedding of teeth. Outline . Tooth development phases. Pre-eruptive period. Period of eruption of the primary dentition. Static period of the primary dentition. Tooth Development Phases. 1- Initiation . The process of tooth development starts as early as 7 weeks in . August 2020. Delayed Eruption. Know the eruption dates approximately, but most important is the . sequence. of eruption. If tooth fails to erupt . within 6 months . of its antimere, or there is a significant deviation from the normal sequence (e.g. a 2 erupting before a 1), investigate. In Part 2 MJDF you may be given a cephalogram or OPG of a child with delayed eruption and be expected to realize that there is something wrong!. PATTERN OF TOOTH MOVEMENT. Pre-eruptive . tooth movement. When deciduous tooth germs first differentiate, they are very small and a good deal of space is between them. This space is soon used because of the rapid growth of the tooth germs, and crowding results, especially in the incisor and canine region. This crowding is then relieved by growth of the jaws in length, which permits drifting of the tooth germs. . Study Group . August 2021. Delayed Eruption. Know the eruption dates approximately, but most important is the . sequence. of eruption. If tooth fails to erupt . within 6 months . of its antimere, or there is a significant deviation from the normal sequence (e.g. a 2 erupting before a 1), investigate. In Part 2 . “. Clusion. ” means “closing”. Prefix “. oc. ” means “up”. Thus occlusion =“closing up”. . Occlusion . Contact relation of upper and lower teeth. Anterior/incisor position. Overjet. and . anatomy. of . primary. . teeth. Tooth. . development. Inductio. (6-7thweek . i.u. .). Initation. . stage. dental. . lamina. Proliferatio. . Toothbud. (8th . week. ). Cap. . stage. (9-10th . By:. Assistant Professor Dr. . Baydaa. Ali Al . Rawi. Just for looking. Stages in the life cycle of a tooth. 1. Growth. Physiologic process. Initiation. Prolifiration. Histodifferentiation. Morphodifferentiation.