title: Peri-implant bone response following immediate implants placed in the esthetic zone and with immediate provisionalization--a case series study.
abstract: OBJECTIVE
  The aim of this case series was to evaluate success and peri-implant bone response around Morse taper immediate implants with an immediate provisionalization.
  
  
  METHODS
  Twelve immediate implants were inserted in the maxilla of nine consecutively treated patients. Proximal bone response was evaluated with digital periapical radiographs, and the buccal wall height and width were evaluated with computed tomography.
  
  
  RESULTS
  A slight decrease in the marginal bone crest (0.14 ± 0.41 mm) at the mesial face and an increase (0.07 ± 1.58 mm) at the distal face were observed. Considering the point where bone tissue meets the implant surface, there was a statistically significant increase at the mesial face (0.92 ± 1.29 mm) and a not significant increase at the distal face (0.43 ± 1.63 mm). Buccal bone wall width showed a statistically significant bone loss at the level of the implant/abutment junction (0.77 ± 0.75 mm) and at 3 mm (0.59 ± 0.76 mm) and 6 mm (0.46 ± 0.81 mm) apically to the implant/abutment junction. The height of the buccal wall showed a not statistically significant resorption (0.20 ± 0.51 mm).
  
  
  CONCLUSIONS
  Based on the preliminary results (8 months) of this case series study, it can be concluded that there was bone loss on the mesial bone crest level and on the buccal face and bone increases on the mesial and distal faces in the area where the bone meets the implant surface. Nevertheless, this is just a case series study, and long-term controlled clinical trials are essential for a definitive conclusion.
authors.affiliation: Latin American Institute of Dental Research and Education, Rua Jacarezinho, 656, Mercês, Curitiba, PR, 80710-150, Brazil.
authors.forename: Carolina
authors.initials: C
authors.lastname: Martin
authors.forename: Geninho
authors.initials: G
authors.lastname: Thomé
authors.forename: Ana Cláudia Moreira
authors.initials: AC
authors.lastname: Melo
authors.forename: Flavia Noemy Gasparini Kiatake
authors.initials: FN
authors.lastname: Fontão
mesh_terms: D000328:Adult; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging; D059605:Dental Implant-Abutment Design; D003758:Dental Implantation, Endosseous; D004955:Esthetics, Dental; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed