Conclusion It can be concluded that bone remodeling occurs after tooth extraction and immediate implant installation
Purpose The objective of this systematic review was to assess the three-dimensional changes in bone tissue after immediate installation of a single implant in a fresh extraction socket in the anterior maxilla .
A prospective clinical study of non-submerged immediate implants: clinical outcomes and esthetic results.
OBJECTIVES To evaluate healing of marginal defects in immediate transmucosal implants  grafted with anorganic bovine bone , and to assess mucosal and radiographic outcomes 3 - 4 years following restoration . MATERIAL AND METHODS Thirty immediate transmucosal implants in maxillary anterior extraction sites of 30 patients r and omly  received BioOss ( N=10 ; BG ) , BioOss and resorbable collagen membrane ( N=10 ; BG+M ) or no graft ( N=10 ; control ) . RESULTS Vertical defect height ( VDH ) reductions of 81.2+/-5 % , 70.5+/-17.4 % and 68.2+/-16.6 % , and horizontal defect depth ( HDD ) reductions of 71.7+/-34.3 % , 81.7+/-33.7 % and 55+/-28.4 % were observed for BG , BG+M and control groups , respectively , with no significant inter-group differences . Horizontal resorption was significantly greater in control group ( 48.3+/-9.5 % ) when compared with BG ( 15.8+/-16.9 % ) and BG+M ( 20+/-21.9 % ) groups ( P=0.000 ) . Ten sites ( 33.3 % ) exhibited recession of the mucosa after 6 months ; eight ( 26.7 % ) had an unsatisfactory esthetic result post-restoration due to recession . Mucosal recession was significantly associated ( P=0.032 ) with buccally positioned implants ( HDD 1.1+/-0.3 mm ) when compared with lingually positioned implants ( HDD 2.3+/-0.6 mm ) . In 19 patients followed for a mean of 4.0+/-0.7 years , marginal mucosa and bone levels remained stable following restoration . CONCLUSION BioOss significantly reduced horizontal resorption of buccal bone . There is a risk of mucosal recession and adverse soft tissue esthetics with immediate implant placement . However , this risk may be reduced by avoiding a buccal position of the implant in the extraction socket
Conclusion It can be concluded that bone remodeling occurs after tooth extraction and immediate implant installation
Purpose The objective of this systematic review was to assess the three-dimensional changes in bone tissue after immediate installation of a single implant in a fresh extraction socket in the anterior maxilla .