title: Flapless postextraction socket implant placement in the esthetic zone: part 1. The effect of bone grafting and/or provisional restoration on facial-palatal ridge dimensional change-a retrospective cohort study.
abstract: The dental literature has reported vertical soft tissue changes that can occur with immediate implant placement, bone grafting, and provisional restoration ranging from a gain or loss of 1.0 mm. However, little is known of the effects of facial-palatal collapse of the ridge due to these clinical procedures. Based upon treatment modalities rendered, an ensuing contour change can occur with significant negative esthetic consequences. The results of a retrospective clinical cohort study evaluating the change in horizontal ridge dimension associated with implant placement in anterior postextraction sockets are presented for four treatment groups: (1) group no BGPR = no bone graft and no provisional restoration; (2) group PR = no bone graft, provisional restoration; (3) group BG = bone graft, no provisional restoration; and (4) group BGPR = bone graft, provisional restoration. Bone grafting at the time of implant placement into the gap in combination with a contoured healing abutment or a provisional restoration resulted in the smallest amount of ridge contour change. Therefore, it is recommended to place a bone graft and contoured healing abutment or provisional restoration at the time of flapless postextraction socket implant placement.
authors.forename: Dennis P
authors.initials: DP
authors.lastname: Tarnow
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Chu
authors.forename: Maurice A
authors.initials: MA
authors.lastname: Salama
authors.forename: Christian F J
authors.initials: CF
authors.lastname: Stappert
authors.forename: Henry
authors.initials: H
authors.lastname: Salama
authors.forename: David A
authors.initials: DA
authors.lastname: Garber
authors.forename: Guido O
authors.initials: GO
authors.lastname: Sarnachiaro
authors.forename: Evangelina
authors.initials: E
authors.lastname: Sarnachiaro
authors.forename: Sergio Luis
authors.initials: SL
authors.lastname: Gotta
authors.forename: Hanae
authors.initials: H
authors.lastname: Saito
mesh_terms: D000328:Adult; D000368:Aged; D016025:Bone Transplantation; D004955:Esthetics, Dental; D005145:Face / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010159:Palate / Q000033:anatomy & histology*; D012189:Retrospective Studies; D014081:Tooth Extraction; D055815:Young Adult