The contour of maxillary sinus matters in osteotome sinus elevation. So does the implant intruding angle between the axis of the implant and the tangent line of the sinus floor contour. The investigators have been engaged in studying the relationship between the outcome of bone formation and the intruding angle, which could guide our clinical decision-making.
Study Type
OBSERVATIONAL
Enrollment
46
Hospital of Stomatology, Sun Yat-sen University
Guangzhou, Guangdong, China
RECRUITINGendosinus bone change
endosinus bone change after osteotome sinus elevation without grafting
Time frame: from the time of performing the implanting surgery to the latest recalling period, accessed up to 100 months
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