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Demineralization Removes Residual Alendronate in Allograft Bone Procured From Donors With a History of Bisphosphonate Use
Author(s) -
Hunter Shawn A.,
Orheim Robert,
Sazon Mia,
Newman Helen,
Woll Judith E.,
Bergevin Michael
Publication year - 2011
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.2010.100236
Subject(s) - bisphosphonate , demineralization , dbm , medicine , dentistry , demineralized bone matrix , osteoporosis , alendronic acid , surgery , urology , materials science , amplifier , enamel paint , cmos , optoelectronics
Background: Bisphosphonate‐associated osteonecrosis (BON) of the jaw is a growing concern in the dental community, but the possible presence of residual bisphosphonates in demineralized allograft bone from bisphosphonate‐using tissue donors and the clinical implications of using such bone are unclear. The objectives of this study are to determine whether alendronate remained in demineralized bone matrix (DBM) procured from donors with a documented history of oral bisphosphonate use and to examine whether the demineralization process removes alendronate from allograft bone. Methods: A gas chromatography–mass spectrometry method was developed and validated to quantify residual alendronate in allograft bone. Alendronate levels in DBM procured from tissue donors with a history of oral bisphosphonate use were compared to alendronate levels in DBM procured from donors without a history of bisphosphonate use. In addition, mineralized and demineralized bone was soaked in alendronate at concentrations of 0.002, 2.0, and 2,000 ng/mg bone and analyzed to examine the effect of the demineralization process. Results: Residual alendronate was not detected in the DBM from either group, nor was it detected in any of the DBM samples soaked in alendronate solutions. Soaked mineralized bone contained measureable alendronate, but the substance was removed by demineralization. Conclusions: The demineralization process effectively removed residual alendronate from allograft bone. These results may relieve anxieties regarding the use of DBM in dental patients because it is unlikely to trigger BON of the jaw.