Evaluation of peri-implant tissue response according to the presence of keratinized mucosa Abstract Purpose: Materials and methods Results:

Transcription

1 Evaluation of peri-implant tissue response according to the presence of keratinized mucosa Bum-Soo Kim 1, Young-Kyun Kim 1, Pil-Young Yun 1, Yang-Jin Lee 2, Hyo-Jeong Lee 3, Su-Gwan Kim 4 1Department of Oral & Maxillofacial surgery 2Department of Prosthodontics 3Department of Periodontology, Seoul National University Bundang Hospital 4Dept. of Oral & Maxillofacial Surgery, College of Dentistry, Chosun University Abstract Purpose: The purpose of this study was to evaluate the responses of peri-implant tissue in the presence of keratinized mucosa. Materials and methods: In 90 patients, 308 implants were placed, and from the time of the delivery of the implant prosthesis, the average follow up period was 13.9 months. The study was evaluated by the aspect of gingival inflammation index (GI), plaque index (PI), the probing pocket depth, mucosal recession, crestal bone resorption, and the correlation of the width of keratinized mucosa with alveolar bone resorption, depending on diverse surface treatments of implants as well as the presence of bone graft. Results: The width of keratinized mucosa was not associated with implant surface characteristics and bone grafting. There were no significant differences in gingival inflammation, plaque accumulation, and crestal bone loss according to the amount of keratinized mucosa. However, the amount of mucosal recession was statistically significant in the group of less keratinized mucosa. Conclusion: The results indicated that the amount of keratinized mucosa around implant cannot be associated with the successful maintenance of implant, but keratinized mucosa might help keep good oral hygiene and prevent mucosal recession. 4 Implantology Vol. 12, No

2 5

3 original article 6 Implantology Vol. 12, No

4 7

5 original article 8 Implantology Vol. 12, No

6 9

7 original article 1. Adell R, Lekholm U, Rockler B, Branemark PI. A 15-year study of osseointegrated implants in the treatment of edentulous jaw. Int J Oral Surg 1981;10: Wennstrom JL, Bengazi F, Lekholm U. The influence of the masticatory mucosa on the peio-implant soft tissue condition, Clin Oral Implants Res 1994;5: Implantology Vol. 12, No

8 3. Bengazi F, Wennstrom JL, Lekholm U. Recession of the soft tissue margin at oral implants, A 2-year longitudinal prospective study. Clin Oral Implants Res 1996;7: Warrer K, Buser D, Lang NP, Karring T. Plaque-induced peri-implantitis in the presence or absence of keratinized mucosa. An experimental study in monkeys. Clin Oral Implants Res 1995;6: Esposito M, Hirsch JM, Lekholm U, Thomsen P. Biological factors contributing to failures of osseointegrated oral implants. (II). Etiopathogenesis. Eur J Oral Sci 1998;106: Lang NP, Loe H. The relationship between the width of keratinized gingiva and gingival health. J Periodontol 1972;43: Loe H. The gingival index, the plaque index and the retention index systems. J Periodontol 1967;38: Loe H, Silness J. Periodontal disease in pregnancy. I. Prevalence and severity. Acta Odont Scand 1963;21: Silness J, Loe H. Periodontal disease in pregnancy. II. Correlation between oral hygiene and periodontal condition. Acta Odont Scand 1964;22: Ten Cate AR. The gingival junction. In:Branemark PI, Zarb G, Albrektsson T, eds. Tissue-integrated prostheses. Chicago: Quintessence Publishing Co. 1986: Adell R, Lekholm U, Rockler B, Branemark PI, Lindhe J, Eriksson B, Sbordone L. Marginal tissue reactions at osseointegrated titanium fixtures (I). A 3-year longitudinal prospective study. Int J Oral Maxillofac Surg 1986;15: Chung DM, Oh TJ, Shotwell JL. Significance of keratinized mucosa in maintenance of dental implants with different surfaces. J Periodontol 2006;77: Berglundh T, Lindhe J. Dimension of the peri-implant mucosa. Biological width revisited. J Clin Periodontol 1996;23: Abrahamsson I, Berglundh T. The mucosal attachment at different abutments. An experimental study in dogs. J Clin Periodontol 1998;25: Nakazato G, Tsuchiya H. In vivo plaque formation on implant materials. Int J Oral Maxillofacial Implants 1989;4: Artzi Z, Tal H, Moses O. Mucosal considerations for osseointegrated implants. J Prosthet Dent 1993;70: