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Restoring Strength of Incisors with Veneers and Full Ceramic Crowns Rama Alyamany Lulu AlRomi Yara AlHabib

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Introduction - Examples of veneers for clinical indications are : * Studies are mentioned next slide - Complications of crowns - differences between all ceramic crowns and veneers -Retreatment of class lll composite restoration - Null hypothesis

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Materials and methods The extracted human teeth used for this study were con- tributed by different dentists. teeth were stored in a 20% alcohol solution for disinfection purposes. Subsequently, the stor -age medium was changed to water. Selection of study teeth was restricted to maxillary cen-tral incisors devoid of tooth fractures or cracks. the selected teeth were divided into three categories by size. By adding the mesio -distal width, incisal- cer - vical length and buccal-oral depth, a value was generated that served to assign a tooth into one of the three cate- gories - The teeth were debrided and stored in water in between procedures to prevent dehydration.

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Materials and methods - Preparation : - Crown and veneer manufacture :

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LUTTING When do we do lutting ? What do we use ? For how many second ?

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Analysis Analysis of maximal fracture loud Statistical analysis

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Results What is fracture loed ? Diffirence amount enamel finish line and dentin finish line Fracture analysis site of fracture

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Conclusion - For the restoration of ‘tooth strength’ , Finishing line of veneers or crowns in enamel is recommended than in dentin ‘loss of strength ’

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Reference http://web.b.ebscohost.com.sdl.idm.oclc.org/ehost/detail/detail?vid=0&sid=85ac2c9c-ad46-436a-93b7-0b20709298a4%40sessionmgr103&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#AN=48791156&db=ddh * Saudi digital library

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Thank you ..! Rama AlYamany 43620008 Lulu Alromi 43620033 Yara AlHabib 43620012 Course director: Dr. Marwa Eltayeb PROS 322

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