Periodontitis and periimplantitis: one and the same?
Research shows that the same anaerobic, gram-negative pathogens are present in the periodontal and implant pocket or crevice. The implants in a partially edentulous case are probably more at risk due to the bacteria being more pathogenic and a seeding mechanism from the tooth pocket to the implant crevice. In the face of a normal microbial flora, retrograde periimplantitis or radiographic bone loss without gingival changes may be due to trauma because of overloading, loading too soon, and/or loading in a lateral direction. Finally, the combination of an infective process (periimplantitis) and noninfective or traumatic process (retrograde periimplantitis) will result in rapid osseous destruction and, possibly, loss of the implant fixture(s).
Meffert
R M
RM
University of Texas Health Science Center, San Antonio.
D016301:Alveolar Bone Loss / Q000209:etiology* / Q000517:prevention & control; D015921:Dental Implants / Q000009:adverse effects*; D003799:Dental Stress Analysis; D006089:Gram-Negative Anaerobic Bacteria / Q000302:isolation & purification; D016905:Gram-Negative Bacterial Infections / Q000209:etiology* / Q000517:prevention & control; D006801:Humans; D010518:Periodontitis / Q000382:microbiology* / Q000517:prevention & control; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000382:microbiology* / Q000517:prevention & control
D015921:Dental Implants