口腔学英文课件：Fixed bridge

1、1,Fixed bridge,2,key words:,1.固位体(retainer) 2.桥体(pontic) 3.连接体（connector) 4.双端固定桥（完全固定桥）rigid fixed bridge 5.半固定桥（应力缓冲式固定桥）semi-rigid bridge 6.单端固定桥（悬臂固定桥）cantilever fixed bridge 7.复合固定桥compound fixed bridge,3,dental defects dentition defects,4,Damage of dentition defects,food impaction,dental carie

2、s and periodontal diseases again,tooth elongation,Time?,How long should we make a fixed bridge for a patient when he losed his tooth? 3 months.,5,6,Compositionand type offixed bridge,1、Composition (1) retainer(固位体) the complete cast crown the metal-ceramic crown the partial cast crown inlay , onlay

3、the post and core and the crown the all-ceramic crown,7,8,9,10,(2)pontic桥体 (artificial teeth) plastic,metal,ceramic,resin, metal and ceramic, metal and plastic,e.g.,11,12,13,(3) connector连接体 Requirements:1,sufficient strength 2,beautiful,esthetics 3,easy toclean,14,2、 Type,Depending on thedifferent

4、materials: 1)metal bridge 2)PFMbridge 3) Metal Resin/plasticBridge 4)All-ceramicfixed bridge 5) Metal Resin/plastic ceramicfixed bridge 6) Resin/plasticBridge,15,16,Depending on contacting alveolar ridge or not,contacting alveolar ridge no contacting alveolar ridge,17,Depending on the structure,rigi

5、d fixed bridge semi-rigid bridge cantilever fixed bridge compound fixed bridge Theimplantfixed bridge Resin-bonded fixed bridge,18,1. rigid fixed bridge,19,20,21,2. semi-rigid bridge,22,key -keyway (bolt),23,key -keyway (bolt),24,25,3. cantilever fixed bridge ( like lever),26,27,4. compound fixed br

6、idge,28,29,5. Theimplantfixed bridge,30,2112missing,31,32,33,6. Resin-bonded fixed bridge,34,35,grooves and same path of placement,36,37,refer to the other tooth,38,39,40,41,the wrong design,42,where is wrong?,43,44,45,summary,Composition : retainer 固位体 pontic 桥体 connector 连接体 Type Depending on the

7、structures: rigid fixed bridge semi-rigid bridge cantilever fixed bridge compound fixed bridge Theimplantfixed bridge Resin-bonded fixed bridge Depending on thedifferent materials: 1)metal bridge 2)PFMbridge 3) Metal Resin/plasticBridge 4)All-ceramicfixed bridge 5) Metal Resin/plastic ceramicfixed bridge 6) Resin/plasticBridg Depending on contacting alveolar ridge or not 1)contacting alveolar ridge