Table 1 Abbreviations and descriptions of parameters measurements analyzed
Abbreviation | Description | Parameters |
|---|---|---|
RBH | Residual bone height | The shortest distance from the alveolar crest to the initial maxillary sinus floor on preoperative CBCT. |
VSFE | Vertical sinus floor elevation with implant | The distance between the initial sinus floor and the elevated sinus floor. |
IP | Implant protrusion | The distance between initial sinus floor and implant apex calculated as subtraction of implant length and RBH |
NFBS | Newly formed bone within the sinus cavity | The newly formed bone within the distance between the initial sinus floor and the elevated sinus floor. |
VSFE− NBF | Vertical sinus floor elevation without new bone formation | Calculated as subtraction of vertical sinus floor elevation with implant and newly formed bone within the sinus cavity |
TBH | The total bone height at least one year after the sinus lifting | The sum of RBH and NFBS was measured at least one year after the sinus lifting operation |
ISQ | The implant stability quotient (ISQ) | The mean values of occlusal and buccal ISQ. |