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Stress and Inflammation as a Detrimental Combination for Peri-implant Bone Loss

¹ School of Dental Medicine, University of Erlangen-Nuremberg, Glückstr. 11, 91054 Erlangen, Germany;
² Institute of Applied Mathematics, University of Erlangen-Nuremberg, Germany;
³ Private Practice, Darmstadt, Germany; and
⁴ Department of Restorative Dentistry, Harvard School of Dental Medicine, Boston, MA, USA

View larger version (46K): [in this window] [in a new window]   Figure 1. Radiographic analysis of bone loss for one- and two-part implants. A calibration factor was determined based on the known distance between the uppermost and the lowermost thread crests (distance between 2 adjacent crests: 1.25 mm) and the length measured on the radiograph. The reference points were the apex and the coronal bone-to-implant contact projected to the midline of the implant. The distance between these points was subtracted from the length of the rough surface.

View larger version (33K): [in this window] [in a new window]   Figure 2. Mean values of bone loss for single-standing (black) and splinted (grey) implants in biologically homogeneous groups I, II, and III with number of sites (n) and standard deviation (SD). P values for comparisons within groups are shown in the diagrams. P values for comparisons between biologically homogeneous groups for single-standing and splinted implants, respectively, are depicted below the diagrams. (A) Unlike single-standing implants, splinted implants showed a distinct increase in bone loss toward greater Composite Inflammation Scores. Hence, the greatest differences were found in the third group. (B-E) Illustration of the dependency of bone loss on Modified Plaque Index (B), Sulcus Fluid Flow Rate (C), Modified Bleeding Index (D), and Keratinized Mucosa (E). As with Composite Inflammation Score, there is a general trend toward higher score values for splinted implants.

Journal of Dental Research, Vol. 85, No. 8, 711-716 (2006)
DOI: 10.1177/154405910608500805


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