أتمتات 43 Eugenol 💙💙

المحاضرة الرابعة 1- Biochemical forces may cause: A- Drifting B- Rotating C- Mobile to the abutment D- All of them 2- Biomechanical forces influenced by : (choose the wrong) A- Root surface area B- Number of pontics C- Length and thickness of pontic span D- Periodontal disease 3- We can use FPD in one of these cases: A- First molar and both premolars missing B- Second premolar and first molar missing C- Both are true D- FPD can't be used here 4- Choose the correct  : A- Molar with conical root provides better support than a molar with divergent root B- Single rooted tooth with an elliptic cross-section offers better support then tooth with similar root surface area C- tilted tooth provide better support than a Well-aligned one D- All of them 5- Three-tooth pontic span is bend .............. than the single- tooth pontic span FPD: A- 4 times B- 8 times C- 18 times D- 27 times 6- More ........... cause more flexible, bending and drifting: A- Thickness B- Length C- Surface area D- Connectors 7- Connectors are indicated for single abutment : A- True B- False 8- For up righting the tilted molar we should : A- Apply an orthodontic B- Modify the path of insertion C- prepare this abutment without any change D- A+B 9- Choose the correct example of secondary abutment: A- Secondary abutment (canine) with primary abutment (1st premolar) B- Secondary abutment (lateral incisor) with primary abutment (canine) C- Secondary abutment (canine) with primary abutment (1st molar) D- All of them 10- when we replace all four maxillary incisors with a FPD : A- Arch curvature has an effect on stresses in it B- Pontics can act as lever arm which can produce a torquing movement C- To reduce the lever action : additional retention is gained in the opposite direction from the lever arm D- All of them 11- In tilted molar abutment we can prepare the molar when orthodontic is impossible : A- True B- False 12- when we use connectors in pier abutment: A- we use rigid connectors on the distal side of the middle abutment B- we use non-rigid connectors on the mesial side of the middle abutment C- we don't need key D- all of them are wrong

الحل 1d 2b 3d FDP 4b 5d 6b 7b 8d 9A 10d 11A 12d

#تعويضات_ثابتة2 #انواع_الجسور

1- Cantilever bridge can be used where the occlusion is protected against : Rotational forces Horizonal forces Vertical forces Occlusion load 2- The most conservative design in teems tooth preparation of bridges is : Fixed-fixed bridge Fixed-removable bridge Cantilever bridge All of the above 3- One disadvantage of Cantilever bridge is : the size of pontic is unlimited Rotational forces could be destructive if the contact point is not placed This design is the most conservative design Both A+B 4- Cantilever prosthesis can be supported with : Glass abutment Connecting bar Both A+B None of the above 5- Spring Cantilever bridge can be supported with : Glass abutment Connecting bar Both A+B None of the above 6- The arm of spring cantilever bridge follows the contour of palate to : Become harder Allow for doctor adaptation Allow for patient adaptation All Of the above 7- Spring cantilever bridge is placed where patient has .....  anterior teeth with one missing unit: Sound Bad Decyed Filled 8- One advantage of spring cantilever bridge is : The pontic requires support from less favourable adjacent teeth Anterior teeth that are sound don't need to be involved Using posterior teeth as abutment is more destructive than anterior sound teeth All of the above 9- One disadvantage of Spring Cantilever bridge is : Some people find the connecting bar uncomfortable The bar can be distorted if it is too thin The bar can be distorted if the occlosion on the pontic is excessive All of the above 10_In these picture we used : Fixed/Fixed bridge Fixed/Movable bridge Cantliver bridge Spring cantliver bridge 11_In these picture we used: Fixed/Fixed bridge Cantliver bridge Cantliver prosthesis supported with glass abutment Spring cantliver bridge 12_In these pictures we used: Fixed/Fixed bridge Fixed/Movable bridge Cantliver bridge Spring cantliver bridge 13_In these  picture we used : Fixed/Fixed bridge Fixed/Movable bridge Cantliver bridge Spring cantliver bridge 14_10_In these  picture we used : Fixed/Fixed bridge Fixed/Movable bridge Cantliver bridge Spring cantliver bridge 15_In these  picture we used : Fixed/Fixed bridge Fixed/Movable bridge Cantliver bridge Spring cantliver bridge 16_A prosthesis where the artificial tooth are supported on one side only is: Fixed/Fixed bridge Fixed/Movable bridge Cantliver bridge Spring cantliver bridge 17-A prosthesis where the artificial tooth supported by a connecting bar to the abutment teeth is : Fixed/Fixed bridge Fixed/Movable bridge Cantliver bridge Spring cantliver bridge

الحل A C B A B C A B D 10صورة c 11c 12D 13c 14A 15B 16c 17D

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