Browse > Article

Influence of platform switching on crestal bone resorption  

Kim, Do-Young (Department of Periodontology, School of Dentistry, Seoul National University)
Kim, Tae-Il (Department of Periodontology, School of Dentistry, Seoul National University)
Seol, Yang-Jo (Department of Periodontology, School of Dentistry, Seoul National University)
Lee, Yong-Moo (Department of Periodontology, School of Dentistry, Seoul National University)
Ku, Young (Department of Periodontology, School of Dentistry, Seoul National University)
Rhyu, In-Chul (Department of Periodontology, School of Dentistry, Seoul National University)
Chung, Chong-Pyoung (Department of Periodontology, School of Dentistry, Seoul National University)
Han, Soo-Boo (Department of Periodontology, School of Dentistry, Seoul National University)
Publication Information
Journal of Periodontal and Implant Science / v.38, no.2, 2008 , pp. 135-142 More about this Journal
Abstract
Purpose: Numerous studies have shown that crestal bone resorption around the implant was related to the location of the implant abutment junction(IAJ). Recently it was hypothesized that platform switching termed the inward horizontal repositioning of the IAJ might limit bone resorption around the implants. The purpose of this clinical study was to evaluate the effect of platform switching on crestal bone resorption. Materials and Methods: The crestal bone loss of 65 external hex implants in 26 patients were radiographically measured at crown placement and follow-up examinations. 23 standard implants(non-platform switching group, NP) were connected with the matching abutments and 42 wide implants(platform switching group, PS) were connected with the 1 mm smaller diameter abutments. Results: There was significant difference of crestal bone loss between NP group and PS group. For implants in the NP group, mean crestal bone loss was $1.18{\pm}0.68\;mm$ at crown placement and $1.42{\pm}0.41\;mm$ at follow-up. The meal bone loss in PS group was $0.47{\pm}0.52\;mm$ at crown placement and $0.60{\pm}0.65\;mm$ at follow-up. When the crestal bone changes according to placement depths of implants were compared, subcrestal position of IAJ had a significantly less bone loss in PS group, but it was not in NP group. Conclusion: Within the limits of the present study, it was concluded that platform switching technique might decrease crestal bone loss around the implants. Additionally, when the IAJ of implant was placed 1 mm deeper in the alveolar bone, the effect of platform switching on bone loss was enhanced.
Keywords
dental implants; marginal bone loss; platform switching;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Jung YC, Han CH, Lee KW. A 1-year radiographic evaluation of marginal bone around dental implants. Int J Oral Maxillofac implants 1996;11:811-818
2 Grunder U, Gracis S, Capelli M. Influence of the 3-D bone-to-implant relationship on esthetics. Int J Periodontics Restorative Dent 2005;25:113-119   PUBMED
3 Hermann JS, Cochran DL, Nummikoski PV, Buser D. Crestal bone changes around titanium implants. A radiographic evaluation of unloaded nonsubmerged and submerged implants in the canine mandible. J Periodontol 1997;68:1117-1130   DOI   PUBMED   ScienceOn
4 Hermann JS, Buser D, Schenk RK, Schoolfield JD, Cochran DL. Biologic width around one-and two-piece titanium implants. Clin Oral Implants Res 2001;12:559-571   DOI   ScienceOn
5 Piattelli A, Scarano A, Paolantonio M et al. Fluids and microbial penetration in the internal part of cement-retained versus screw-retained implant-abutment connections. J Periodontol 2001;72:1146-1150   DOI   ScienceOn
6 Gardner DM. Platform switching as a means to achieving implant esthetics. A case study. N Y state Dent J 2005;71:34-37   PUBMED
7 Wilderman MN, Wentz FM, Orban BJ. Histogenesis of repair after osseous surgery. J Periodontol 1970;41:551-565   DOI   PUBMED
8 Tarnow DP, Cho SC, Wallace SS. The effect of inter-implant distance on the height of inter-implant bone crest. J Periodontal 2000;71:546-549   DOI   ScienceOn
9 Ericsson I, Nilner K, Klinge B, Glantz P-O. Radiographical and histological characteristics of submerged and nonsubmerged titanium implants. An experimental study in the Labrador dog. Clin Oral Implants Res 1996;7:20-26   DOI   ScienceOn
10 Berglundh T, Lindhe J. Dimension of the periimplant mucosa. Biological width revisited. J Clin Periiodontol 1996;23:971-973   DOI   ScienceOn
11 Duyck J, Ronold HJ, Van Oosterwyck H et al. The influence of static and dynamic loading on marginal bone reactions around osseointegrated implants: an animal experimental study. Clin Oral Implants Res 2001;12:207-218   DOI   ScienceOn
12 Abrahamsson I, Berglundh T, Wennstrom J, Lindhe J. The peri-implant hard and soft tissue ant different implant systems. A comparative study in the dog. Clin Oral Implants Res 1996;7:212-219   DOI   ScienceOn
13 Persson LG, Lekholm U, Leonhardt A, Dahlen G, Lindhe J. Bacterial colonization of internal surfaces of Branemark system implant components. Clin Oral Implants Res 1996;7:90-95   DOI   ScienceOn
14 Piattelli A, Scarano A, Piattelli M. Microscopical aspects of failure in osseointegrated dental implants: a report of five cases. Biomaterials 1996;17:1235-1241   DOI   ScienceOn
15 Quirynen M, Naert I, van Steenberghe D. Fixture design and overload influence marginal bone loss and fixture success in the Branemark system. Clin Oral Implants Res 1992;3:104-111   DOI   ScienceOn
16 Ericsson I, Rersson SG, Berglundh T, Marinello CP, Lindhe J, Klinge B. Different types of inflammatory reactions in periimplant soft tissue. J Clin Periodontol 1995;22:255-261   DOI   PUBMED   ScienceOn
17 Weber HP, Buser D, Donath K et al. Comparison of healed tissues adjacent to submerged and non-submerged unloaded titanium dental implants. A histometric study in beagle dogs. Clin Oral Implants Res 1996;7:11-19   DOI   ScienceOn
18 Lazzara RJ, Porter SS. Platform switching: A New concept in implant dentistry for controlling postrestorative crestal bone levels. Int J Periodontics Restorative Dent 2006;26:9-17   PUBMED
19 Todescan FF, Pustiglioni FE, Imbronito AV, Albrektsson T, Gioso M. Influence of the microgap in the peri-implant hard and soft tissues: A histomorphometric study in dogs. Int J Oral Maxillofac implants 2002;17:467-472
20 Gomez-Roman G. Influence of flap design on peri-implant interproximal crestal bone loss around single tooth implants. Int J Oral Maxillofac implants 2001;16:61-67
21 Hermann JS, Buser D, Schenk RK, Higginbottom FL, Cochran DL. Biologic width around titanium implants. A physiologically formed and stable dimension over time. Clin Oral Implants Res 2000;11:1-11   DOI   ScienceOn
22 Abrahamsson I, Berglunch T, Linde J. Soft tissue response to plaque formation at different implant systems. A comparative study in the dog. Clin Oral Implants Res 1998;9:73-79   DOI   ScienceOn
23 Adell R, Lekholm U, Rockler B, Branemark PI. A 15-year study of osseointegrated implants in the treatment of the edentulous jaw. Int J Oral Surg 1981;10:387-416   DOI
24 Eriksson RA, Albrektsson T. The effect of heat on bone regeneration J Oral Maxillofac Surg 1984;42:701-711
25 Albrektsson T, Zarb G, Worthington P, Eriksson RA. The long-term efficacy of currently used dental implants: a review and proposed criteria of success. Int J Oral Maxillofac implants 1986;1:11-25
26 Moon I-S, Berglundh T, Abrahamsson I, Linder E, Lindhe J. The barrier between the keratinized mucosa and the dental implant. An experimental study in the dog. J Clin Periodontol 1999;26:658-663   DOI   ScienceOn