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Background:
Although there are many publications describing high survival rates for implants placed in grafted maxillary sinuses , there are not many studies that analyze the influence of various surgical and prosthetic factors on long-term stability of peri-implant bone tissue
Aim/Hypothesis:
Relate the apical and crestal bone loss with sex, age , previous history of periodontitis, tobacco consumption , residual bone height , bone quality, simultaneous or delayed placement of implants , implant size and type , location, membrane perforation, membrane placement on antrostomy , graft material , use of PRP , intrasinusal implant protrusion , type of prosthesis, antagonist, time between the graft and implant placement , time between surgery and the second phase and time of global loading
Material and Methods:
A retrospective study involving patients undergoing sinus bone graft during the period between 2002 and 2010 , in which linear measurements of crestal and apical bone level were performed at 6 months postsurgery, one year and ultimate control . Statistical analysis included the Student t test for related samples and independent samples, ANOVA and post hoc tests to compare the crestal and apical bone loss at different times in the groups defined from different variables , and the correlation and linear regression analysis of the variables.
Results:
The sample included 104 patients undergoing sinus bone graft technique , in which 196 implants were placed in 136 grafted maxillary sinuses . The mean age was 52 years ( 44 men and 60 women). The mean crestal bone loss at final follow up was 0.61 mm ( min 0 , max 6.02 mm , SD . 0.95 mm ) and mean apical bone loss was 0.68 mm ( SD : 2mm )
Conclusions and clinical implications:
The previous history of periodontitis and consumption of tobacco are the factors most associated with crestal bone loss while the apical loss showed no significant relationship with any of the variables analyzed. The relative risks of each variable on the crestal an apical bone stability will be also shown
Background:
Although there are many publications describing high survival rates for implants placed in grafted maxillary sinuses , there are not many studies that analyze the influence of various surgical and prosthetic factors on long-term stability of peri-implant bone tissue
Aim/Hypothesis:
Relate the apical and crestal bone loss with sex, age , previous history of periodontitis, tobacco consumption , residual bone height , bone quality, simultaneous or delayed placement of implants , implant size and type , location, membrane perforation, membrane placement on antrostomy , graft material , use of PRP , intrasinusal implant protrusion , type of prosthesis, antagonist, time between the graft and implant placement , time between surgery and the second phase and time of global loading
Material and Methods:
A retrospective study involving patients undergoing sinus bone graft during the period between 2002 and 2010 , in which linear measurements of crestal and apical bone level were performed at 6 months postsurgery, one year and ultimate control . Statistical analysis included the Student t test for related samples and independent samples, ANOVA and post hoc tests to compare the crestal and apical bone loss at different times in the groups defined from different variables , and the correlation and linear regression analysis of the variables.
Results:
The sample included 104 patients undergoing sinus bone graft technique , in which 196 implants were placed in 136 grafted maxillary sinuses . The mean age was 52 years ( 44 men and 60 women). The mean crestal bone loss at final follow up was 0.61 mm ( min 0 , max 6.02 mm , SD . 0.95 mm ) and mean apical bone loss was 0.68 mm ( SD : 2mm )
Conclusions and clinical implications:
The previous history of periodontitis and consumption of tobacco are the factors most associated with crestal bone loss while the apical loss showed no significant relationship with any of the variables analyzed. The relative risks of each variable on the crestal an apical bone stability will be also shown
Background:
Although there are many publications describing high survival rates for implants placed in grafted maxillary sinuses , there are not many studies that analyze the influence of various surgical and prosthetic factors on long-term stability of peri-implant bone tissue
Aim/Hypothesis:
Relate the apical and crestal bone loss with sex, age , previous history of periodontitis, tobacco consumption , residual bone height , bone quality, simultaneous or delayed placement of implants , implant size and type , location, membrane perforation, membrane placement on antrostomy , graft material , use of PRP , intrasinusal implant protrusion , type of prosthesis, antagonist, time between the graft and implant placement , time between surgery and the second phase and time of global loading
Material and Methods:
A retrospective study involving patients undergoing sinus bone graft during the period between 2002 and 2010 , in which linear measurements of crestal and apical bone level were performed at 6 months postsurgery, one year and ultimate control . Statistical analysis included the Student t test for related samples and independent samples, ANOVA and post hoc tests to compare the crestal and apical bone loss at different times in the groups defined from different variables , and the correlation and linear regression analysis of the variables.
Results:
The sample included 104 patients undergoing sinus bone graft technique , in which 196 implants were placed in 136 grafted maxillary sinuses . The mean age was 52 years ( 44 men and 60 women). The mean crestal bone loss at final follow up was 0.61 mm ( min 0 , max 6.02 mm , SD . 0.95 mm ) and mean apical bone loss was 0.68 mm ( SD : 2mm )
Conclusions and clinical implications:
The previous history of periodontitis and consumption of tobacco are the factors most associated with crestal bone loss while the apical loss showed no significant relationship with any of the variables analyzed. The relative risks of each variable on the crestal an apical bone stability will be also shown
Background:
Although there are many publications describing high survival rates for implants placed in grafted maxillary sinuses , there are not many studies that analyze the influence of various surgical and prosthetic factors on long-term stability of peri-implant bone tissue
Aim/Hypothesis:
Relate the apical and crestal bone loss with sex, age , previous history of periodontitis, tobacco consumption , residual bone height , bone quality, simultaneous or delayed placement of implants , implant size and type , location, membrane perforation, membrane placement on antrostomy , graft material , use of PRP , intrasinusal implant protrusion , type of prosthesis, antagonist, time between the graft and implant placement , time between surgery and the second phase and time of global loading
Material and Methods:
A retrospective study involving patients undergoing sinus bone graft during the period between 2002 and 2010 , in which linear measurements of crestal and apical bone level were performed at 6 months postsurgery, one year and ultimate control . Statistical analysis included the Student t test for related samples and independent samples, ANOVA and post hoc tests to compare the crestal and apical bone loss at different times in the groups defined from different variables , and the correlation and linear regression analysis of the variables.
Results:
The sample included 104 patients undergoing sinus bone graft technique , in which 196 implants were placed in 136 grafted maxillary sinuses . The mean age was 52 years ( 44 men and 60 women). The mean crestal bone loss at final follow up was 0.61 mm ( min 0 , max 6.02 mm , SD . 0.95 mm ) and mean apical bone loss was 0.68 mm ( SD : 2mm )
Conclusions and clinical implications:
The previous history of periodontitis and consumption of tobacco are the factors most associated with crestal bone loss while the apical loss showed no significant relationship with any of the variables analyzed. The relative risks of each variable on the crestal an apical bone stability will be also shown