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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 30 (2015), No. 5     1. Oct. 2015
Int J Oral Maxillofac Implants 30 (2015), No. 5  (01.10.2015)

Page 1168-1173, doi:10.11607/jomi.4074, PubMed:26394356

Characterization of Cement Particles Found in Peri-implantitis-Affected Human Biopsy Specimens
Burbano, Maria / Wilson jr., Thomas G. / Valderrama, Pilar / Blansett, Jonathan / Wadhwani, Chandur P. K. / Choudhary, Pankaj K. / Rodriguez, Lucas C. / Rodrigues, Danieli C.
Purpose: Peri-implantitis is a disease characterized by soft tissue inflammation and continued loss of supporting bone, which can result in implant failure. Peri-implantitis is a multifactorial disease, and one of its triggering factors may be the presence of excess cement in the soft tissues surrounding an implant. This descriptive study evaluated the composition of foreign particles from 36 human biopsy specimens with 19 specimens selected for analysis. The biopsy specimens were obtained from soft tissues affected by peri-implantitis around cement-retained implant crowns and compared with the elemental composition of commercial luting cement.
Materials and Methods: Nineteen biopsy specimens were chosen for the comparison, and five test cements (TempBond, Telio, Premier Implant Cement, Intermediate Restorative Material, and Relyx) were analyzed using scanning electron microscopy equipped with energy dispersive x-ray spectroscopy. This enabled the identification of the chemical composition of foreign particles embedded in the tissue specimens and the composition of the five cements. Statistical analysis was conducted using classification trees to pair the particles present in each specimen with the known cements.
Results: The particles in each biopsy specimen could be associated with one of the commercial cements with a level of probability ranging between .79 and 1. TempBond particles were found in one biopsy specimen, Telio particles in seven, Premier Implant Cement particles in four, Relyx particles in four, and Intermediate Restorative Material particles in three.
Conclusion: Particles found in human soft tissue biopsy specimens around implants affected by peri-implant disease were associated with five commercially available dental cements.

Keywords: dental cement, inflammation, foreign body particles, peri-implantitis