PPT-Permanent maxillary molars

Permanent maxillary molars are the largest and strongest maxillary teeth they have three roots two buccal and one lingual palatal they erupt behind the deciduous molars their main function is grinding the food. 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. MANDIBULAR. Tooth Numbering Systems. Universal Tooth Numbering System. Dentition. Primary dentition. Deciduous dentition—20 teeth. Mixed dentition. Combination of primary and permanent dentition. MANDIBULAR. Tooth Numbering Systems. Universal Tooth Numbering System. Dentition. Primary dentition. Deciduous dentition—20 teeth. Mixed dentition. Combination of primary and permanent dentition. – Deciduous teeth. There are . 20 primary teeth . (10 at every jaw):. 8 incisors, 4 canines and 8 primary molars. . By 4 months in . utero. : Teeth begin to form in bone. By Age 2. : All deciduous . 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. How should the lead apron be stored?. Hung up. Folded. In the x-ray room. Away from patients. How should the lead apron be stored?. Hung up. Folded. In the x-ray room. Away from . patients. **The lead apron should be hung up so that the LEAD inside the apron doesn’t crack. PART -II. 17.08.2020. First transition. Eruption of first molars . Exchange of incisors. Permanent first molars erupt into end on/flush terminal plane relationship – normal at this age. Deciduous molars are in flush terminal plane relationship. LO: To classify different types of teeth and their functions. . Starter Activity. - you will need a mirror. Using the mirror count how many teeth are in your mouth and then count how many teeth are an adults mouth.. . Intra operatively. Haemorrhage. Fractured root apex. Damage to adjacent tooth. Damage to adjacent soft tissues. Fractured mandible. Collapse in the dental chair. Post operatively. Postoperative instructions. Clinical Uses for Tooth Morphology . Mounting dental radiographs . Assisting in charting a mouth with missing teeth and teeth that have “drifted”. Selecting temporary crowns or orthodontic bands from a box with a variety of shapes. Figure 2f: Presurgical panoramic radiograph.Figure 2e:Presurgical occlusal relationship. Figure 2h: Intraoral views after removal of orthodontic appliances and completion of the mandibular implant-sup 1 Abnomalitiesof teethEnvironmental alterationsDevelopmental alterations Effects on tooth structure developmentLocalizedPostdevelopmentalstructure lossDiscoloration of teethes of eruption Local factor of First Permanent Molars in Children An Update of t he 2009 Guidelines written by M T Cobo urne, A Williams and R McMullen Martyn T. Cobourne Professor of Orthodontics Department of Orthodontics an Diagnosis. Arch perimeter analysis. Carey’s analysis showing 0 – 2.5 mm discrepancy.. Bolton’s analysis: A ratio exists between the . mesio. distal widths of maxillary and mandibular teeth..