title: Survival rate of one-piece dental implants placed with a flapless or flap protocol--a randomized, controlled study: 12-month results.
abstract: The purpose of this randomized controlled clinical study was to compare the survival of a one-piece anodically oxidized surface implant when placed with a flapless or flap protocol. Bone loss measurements on radiographs and changes in clinical probing depths 1 year post-definitive restoration placement were recorded and compared. Fifty-two of 60 patients (implants) remained in the study at the 1-year follow-up. At the time of final evaluation, no implant was lost in either group. At the time of placement of the definitive restoration, there was a mean mesial and distal bone gain in both groups compared to bone levels present at the time of implant insertion. There were no significant changes in bone levels between placement of the definitive restoration and those recorded 12 months later, and no significant differences in bone levels between the flap or flapless group at 6 or 12 months were noted. No significant differences were seen either in pocket depth or change in pocket depth at 6 and 12 months in the flapless and flap groups. It was therefore concluded that one-piece anodically oxidized surface implants, 1 year post-definitive restoration insertion, had high survival rates (100%) and stable marginal bone and probing depth levels whether a flapless or flap protocol was used for implant insertion.
authors.affiliation: Department of Perdiodontology and Implant Dentistry, New York University, NY, USA. dr.froum@verizon.net
authors.forename: Stuart J
authors.initials: SJ
authors.lastname: Froum
authors.forename: Sang Choon
authors.initials: SC
authors.lastname: Cho
authors.forename: Nicholas
authors.initials: N
authors.lastname: Elian
authors.forename: George
authors.initials: G
authors.lastname: Romanos
authors.forename: Ziad
authors.initials: Z
authors.lastname: Jalbout
authors.forename: Mazen
authors.initials: M
authors.lastname: Natour
authors.forename: Robert
authors.initials: R
authors.lastname: Norman
authors.forename: Dinah
authors.initials: D
authors.lastname: Neri
authors.forename: Dennis P
authors.initials: DP
authors.lastname: Tarnow
mesh_terms: D016301:Alveolar Bone Loss / Q000145:classification; D002484:Cementation / Q000379:methods; D003442:Crowns; D059605:Dental Implant-Abutment Design; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D003764:Dental Materials / Q000737:chemistry; D019094:Dental Prosthesis, Implant-Supported; D003794:Dental Restoration, Temporary; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008297:Male; D016876:Metal Ceramic Alloys / Q000737:chemistry; D020366:Methylmethacrylate / Q000737:chemistry; D010012:Osteogenesis / Q000502:physiology; D010514:Periodontal Pocket / Q000145:classification; D016300:Radiography, Bitewing; D013499:Surface Properties; D013524:Surgical Flaps; D016019:Survival Analysis
chemical_list: D015921:Dental Implants; D003764:Dental Materials; D016876:Metal Ceramic Alloys; D020366:Methylmethacrylate