title: Immediate placement and provisionalization of maxillary anterior single implants: 1-year prospective study.
abstract: OBJECTIVE
  This 1-year prospective study evaluated the implant success rate, peri-implant tissue response, and esthetic outcome of immediately placed and provisionalized maxillary anterior single implants.
  
  
  METHODS
  Thirty-five patients (8 men, 27 women) with a mean age of 36.5 years (range 18 to 65) were included in this study. Thirty-five threaded, hydroxyapatite-coated implants were placed and provisionalized immediately after each failing tooth had been removed. The definitive restoration was placed 6 months later. The patients were evaluated clinically and radiographically at implant placement and at 3, 6, and 12 months after implant placement.
  
  
  RESULTS
  At 12 months, all implants remained osseointegrated. The mean marginal bone change from the time of implant placement to 12 months was -0.26 +/- 0.40 mm mesially and -0.22 +/- 0.28 mm distally. No significant differences in the Plaque Index scores were noted at different time intervals. The mean midfacial gingival level and mesial and distal papilla level changes from pretreatment to 12 months were -0.55 +/- 0.53 mm, -0.53 +/- 0.39 mm, and -0.39 +/- 0.40 mm, respectively. All patients were very satisfied with the esthetic outcome and none had noticed any changes at the gingival level.
  
  
  CONCLUSIONS
  Although marginal bone and gingival level changes were statistically significant from pretreatment to 12 months of follow-up, they were well within clinical expectations.
  
  
  CONCLUSIONS
  The results of this study suggest that favorable implant success rates, peri-implant tissue responses, and esthetic outcomes can be achieved with immediately placed and provisionalized maxillary anterior single implants.
authors.affiliation: Department of Restorative Dentistry, Loma Linda University School of Dentistry, Loma Linda, California 92354, USA. jkan@sd.llu.edu
authors.forename: Joseph Y K
authors.initials: JY
authors.lastname: Kan
authors.forename: Kitichai
authors.initials: K
authors.lastname: Rungcharassaeng
authors.forename: Jaime
authors.initials: J
authors.lastname: Lozada
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000145:classification; D000704:Analysis of Variance; D020099:Coated Materials, Biocompatible / Q000737:chemistry; D003758:Dental Implantation, Endosseous; D019250:Dental Implants, Single-Tooth; D003774:Dental Plaque Index; D019094:Dental Prosthesis, Implant-Supported; D003794:Dental Restoration, Temporary; D017886:Durapatite / Q000737:chemistry; D004955:Esthetics, Dental; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery*; D008875:Middle Aged; D016348:Osseointegration; D017060:Patient Satisfaction; D010512:Periodontal Index; D011446:Prospective Studies; D018709:Statistics, Nonparametric; D016896:Treatment Outcome
chemical_list: D020099:Coated Materials, Biocompatible; D017886:Durapatite