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Objective: ITI implant two different cusp inclination of CAD / CAM zirconia all-ceramic crowns after its observation and clinical indicators crestal bone uptake was measured , analyzed ITI implants CAD / CAM zirconia crowns clinical results for clinical reference. Methods: ITI accepted planting a surgical complete upper CAD / CAM all-ceramic crowns cases 24 cases , in accordance with the cusp inclination is divided into two groups of 12 cases . Group A : ITI implants zirconia all-ceramic crowns buccolingual width is the same name as the contralateral natural teeth 2/3, cusp inclination of 15 °, (?) Formed on the full row overflow channel morphology, 12 cases ; B group : ITI implants zirconia all-ceramic crowns buccolingual width is the same name as the contralateral natural teeth 2/3, cusp inclination of 25 °, (?) formed on the full row overflow channel morphology, 12 case . Wearing a crown in the day , wearing the crown after three months and six months after wearing the crown periapical radiographs were taken to measure the amount of crestal bone loss , analyzing recorded in the six months after wearing the crown of clinical outcome measures . Results : 1.ITI implant zirconia crowns cusp inclination of 15 ° , 25 ° Occlusal restorations in both groups after 6 months , check the surface texture, color match , anatomic form, marginal adaptation , gums healthy five two experimental groups was not statistically significant (P gt; 0.05). (2) two experimental groups wearing crown crown worn day and three months, six months after the crestal bone loss compared to the amount , the result of the comparison group were statistically significant (P lt; 0.05). 3.ITI implants Zirconia crowns repaired three months, six months, two groups of crestal bone loss between the amount of no statistical significance (P gt; 0.05). Conclusion: After six months wearing the crown , ITI implants zirconia all-ceramic crowns with good aesthetic effect , gingival health ; two different cusp inclination zirconia all-ceramic crowns on implant neck bone absorption are affected.
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