IADR Abstract Archives
The Comparison of Different Surface Debridement Methods in vitro to Clinical Failed Implants
Objectives: To evaluate the topography and element composition changes of implant surfaces after surface decontamination of clinical failed implants in vitro, and to compare the cleaning effect of different debridement methods.
Methods: Fifteen clinical failed implants were cleaned and decontaminated by different methods in vitro as follows. Group 1: normal saline irrigation, Group 2: air polishing with glycine+normal saline irrigation, Group 3: air polishing with glycine+EDTA+normal saline irrigation, Group 4: ultrasonic scaling with PEEK tip+normal saline irrigation, Group 5: ultrasonic scaling with PEEK tip+EDTA+normal saline irrigation. One unused implant was included as blank control. The implant surface topography was observed by scanning electron microscopy (SEM) and stereoscopic microscope (SM). The decontamination efficiency was evaluated by subjective VAS score. And the element composition of implant surface was detected by the energy dispersive spectroscopy (EDS).
Results: No matter which method was used, remnant debris, such as granulation tissue, mineral particles and bacteria could still be detected on the treated surfaces through SEM and SM. Element ratio of carbon (C%) and nitrogen (N%) were decreased, while the titanium (Ti%) was increased after debriding in all groups according to EDS analysis. VAS assessment score in Group3 was significantly higher than all other groups. Groups 3 also showed the most significant decrease of C% and N%, and the most significant increase of Ti% according to EDS analysis.
Conclusions: Within the examined methods, the most efficient one for implant surface decontamination seemed to be air polishing with glycine+EDTA+normal saline irrigation. But none of the debridement methods could restore the surface topograph and element composition as before. More effective method should be further innovated to treat the contaminated implant surface.
Methods: Fifteen clinical failed implants were cleaned and decontaminated by different methods in vitro as follows. Group 1: normal saline irrigation, Group 2: air polishing with glycine+normal saline irrigation, Group 3: air polishing with glycine+EDTA+normal saline irrigation, Group 4: ultrasonic scaling with PEEK tip+normal saline irrigation, Group 5: ultrasonic scaling with PEEK tip+EDTA+normal saline irrigation. One unused implant was included as blank control. The implant surface topography was observed by scanning electron microscopy (SEM) and stereoscopic microscope (SM). The decontamination efficiency was evaluated by subjective VAS score. And the element composition of implant surface was detected by the energy dispersive spectroscopy (EDS).
Results: No matter which method was used, remnant debris, such as granulation tissue, mineral particles and bacteria could still be detected on the treated surfaces through SEM and SM. Element ratio of carbon (C%) and nitrogen (N%) were decreased, while the titanium (Ti%) was increased after debriding in all groups according to EDS analysis. VAS assessment score in Group3 was significantly higher than all other groups. Groups 3 also showed the most significant decrease of C% and N%, and the most significant increase of Ti% according to EDS analysis.
Conclusions: Within the examined methods, the most efficient one for implant surface decontamination seemed to be air polishing with glycine+EDTA+normal saline irrigation. But none of the debridement methods could restore the surface topograph and element composition as before. More effective method should be further innovated to treat the contaminated implant surface.