Immediate placement and provisionalization of maxillary anterior single implants: 1-year prospective study.

PURPOSE 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. MATERIALS AND 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. DISCUSSION Although marginal bone and gingival level changes were statistically significant from pretreatment to 12 months of follow-up, they were well within clinical expectations. CONCLUSION 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.

[1]  P. Branemark,et al.  Marginal tissue reactions at osseointegrated titanium fixtures (I). A 3-year longitudinal prospective study. , 1986, International journal of oral and maxillofacial surgery.

[2]  J. Easley,et al.  Methods of determining alveolar osseous form. , 1967, Journal of periodontology.

[3]  S. Castagna,et al.  Single-tooth implant rehabilitation: a retrospective study of 67 implants. , 1994, The International journal of prosthodontics.

[4]  John C. Kois,et al.  Altering Gingival Levels: The Restorative Connection Part I: Biologic Variables , 1994 .

[5]  C. Bolender,et al.  The applicability of osseointegrated implants in the treatment of partially edentulous patients: three-year results of a prospective multicenter study. , 1993, Quintessence international.

[6]  H. Haanaes,et al.  Immediate loading of single-tooth ITI implants in the anterior maxilla: a prospective 5-year pilot study. , 2002, Clinical oral implants research.

[7]  H. Hansson,et al.  Osseointegrated titanium implants. Requirements for ensuring a long-lasting, direct bone-to-implant anchorage in man. , 1981, Acta orthopaedica Scandinavica.

[8]  T Jemt,et al.  A 3-year follow-up study on single implant treatment. , 1993, Journal of dentistry.

[9]  T. Testori,et al.  A human histologic analysis of osseotite and machined surfaces using implants with 2 opposing surfaces. , 1999, The International journal of periodontics & restorative dentistry.

[10]  L. Avivi-Arber,et al.  Clinical effectiveness of implant-supported single-tooth replacement: the Toronto Study. , 1996, The International journal of oral & maxillofacial implants.

[11]  Y. Sato,et al.  Correlation between mucosal inflammation and marginal bone loss around hydroxyapatite-coated implants: a 3-year cross-sectional study. , 1997, The International journal of oral & maxillofacial implants.

[12]  G. Zarb,et al.  The longitudinal effectiveness of osseointegrated dental implants. The Toronto Study: peri-implant mucosal response. , 1992, The International journal of periodontics & restorative dentistry.

[13]  M. Quirynen,et al.  Periodontal indices around natural and titanium abutments: a longitudinal multicenter study. , 1993, Journal of periodontology.

[14]  G. Holt,et al.  Osseointegrated Titanium Implants , 1986 .

[15]  D Buser,et al.  Removal torque values of titanium implants in the maxilla of miniature pigs. , 1998, The International journal of oral & maxillofacial implants.

[16]  C J Goodacre,et al.  Clinical complications of osseointegrated implants. , 1999, The Journal of prosthetic dentistry.

[17]  P. Krogh,et al.  Osseointegrated implants for single-tooth replacement: progress report from a multicenter prospective study after 3 years. , 1994, The International journal of oral & maxillofacial implants.

[18]  G Watzek,et al.  Brånemark single tooth implants: a preliminary report of 76 implants. , 1995, The Journal of prosthetic dentistry.

[19]  E. Hunziker,et al.  Effect of surface topology on the osseointegration of implant materials in trabecular bone. , 1995, Journal of biomedical materials research.

[20]  P. Thomsen,et al.  The soft tissue barrier at implants and teeth. , 1991, Clinical oral implants research.

[21]  M. Listgarten,et al.  Transgingival probing as a potential estimator of alveolar bone level. , 1976, Journal of periodontology.

[22]  J. Liu,et al.  Immediate provisional for single-tooth implant replacement with Brånemark system: preliminary report. , 2001, Clinical implant dentistry and related research.

[23]  K. Nilner,et al.  Immediate functional loading of Brånemark single tooth implants. An 18 months' clinical pilot follow-up study. , 2000, Clinical oral implants research.

[24]  Wöhrle Ps,et al.  Single-tooth replacement in the aesthetic zone with immediate provisionalization: fourteen consecutive case reports. , 1998 .

[25]  B. Andersson,et al.  Single-tooth restorations supported by osseointegrated implants: results and experiences from a prospective study after 2 to 3 years. , 1995, The International journal of oral & maxillofacial implants.

[26]  G E Carlsson,et al.  Clinical evaluation of single-tooth restorations supported by osseointegrated implants: a retrospective study. , 1994, The International journal of oral & maxillofacial implants.

[27]  J B Brunski,et al.  Biomechanical factors affecting the bone-dental implant interface. , 1992, Clinical materials.

[28]  N. Lang,et al.  The microbiota associated with successful or failing osseointegrated titanium implants. , 1987, Oral microbiology and immunology.

[29]  R. Nishimura,et al.  Osseointegration enhanced by chemical etching of the titanium surface. A torque removal study in the rabbit. , 1997, Clinical oral implants research.

[30]  P. Branemark.  Osseointegration and its experimental background. , 1983, The Journal of prosthetic dentistry.

[31]  J C Kois,et al.  Predictable peri-implant gingival aesthetics: surgical and prosthodontic rationales. , 2001, Practical procedures & aesthetic dentistry : PPAD.

[32]  T. Albrektsson,et al.  A histomorphometric and removal torque study of screw-shaped titanium implants with three different surface topographies. , 1995, Clinical oral implants research.

[33]  K. Rungcharassaeng,et al.  Immediate placement and provisionalization of maxillary anterior single implants: a surgical and prosthodontic rationale. , 2000, Practical periodontics and aesthetic dentistry : PPAD.

[34]  D P Tarnow,et al.  Gingival recession around implants: a 1-year longitudinal prospective study. , 2000, The International journal of oral & maxillofacial implants.

[35]  Ann Wennerberg,et al.  A histomorghometric study of screw‐shaped and removal torque titanium implants with three different surface topographies , 1995 .

[36]  D. E. Smith,et al.  Criteria for success of osseointegrated endosseous implants. , 1989, The Journal of prosthetic dentistry.

[37]  T. Albrektsson,et al.  A 1-year follow-up of implants of differing surface roughness placed in rabbit bone. , 1997, The International journal of oral & maxillofacial implants.

[38]  K. Rungcharassaeng,et al.  Peri-implant tissue response of immediately loaded, threaded, HA-coated implants: 1-year results. , 2002, The Journal of prosthetic dentistry.

[39]  J. Wennström,et al.  Recession of the soft tissue margin at oral implants. A 2-year longitudinal prospective study. , 1996, Clinical oral implants research.

[40]  U Grunder,et al.  Stability of the mucosal topography around single-tooth implants and adjacent teeth: 1-year results. , 2000, The International journal of periodontics & restorative dentistry.

[41]  George A. Zarb,et al.  Tissue-Integrated Prostheses: Osseointegration in Clinical Dentistry , 1985 .

[42]  J. Kent,et al.  Long-term follow-up on hydroxylapatite-coated cylindrical dental implants: a comparison between developmental and recent periods. , 1994, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.