Dental implantlar çevresindeki sert doku densitesinin konvensiyonel radyograflar ile incelenmesi

The aim of this study was to determine the ability of two forms of radiographic analysis PA and digital PN to assess post-surgical resorption in the bone-level after applying LLLT and using different flap designs. 27 patients were recruited in this study, all of the patients were free from any systematic diseases, agreed to come to all follow-up controls acquired. Total of 54 implants were bilaterally inserted to 27 patients. For all the patients GaAlAs diode laser with a wavelength of 830nm and output power of 94 mw, and a fluency of 3.0 J/cm2 was employed for at one point perpendiculary to the selected implants for 39 seconds in total of four sessions. First, it was applied introperatively, the second was after the suturing immediately, and the last two were at day five and seven. LLLT was applied to one side and the other side was the control group. A total of 15 patients underwent to normal flap surgical technique, while the rest of the 12 patients underwent to mini-flap technique.The radiographs were taken directly after the implants were inserted, and then at the end of the 1st month. The third radiographs were taken at the end of 3rd month for the implants in the mandible and at the end of 4th month for implants inserted in the upper jaw. To try and keep the same angulation in the PA radiographs, an anterior and posterior film holders were used with an individual impression taken for each patient before the surgery. All the PA and PN radiographs were converted using ScionImage program convertor and then microanalayzed.The irradiated group revealed less bone resorption than the non-irradiated group in both radiographs, but the difference was not significant. There was a significant difference (p<0.05) in the bone level resorption around dental implants which was inserted with the normal flap removal between the irradiated and the non-irradiated groups on the PN analysis. There was no significant difference in the irradiated flap group in at day 2-3 on the PA radiographs (p>0.05). While, there was a significant difference at the rest of the time intervals within the same group (p<0.05).In comparison between the two flap techniques, the mini-flap group does also revealed showed less bone loss than the flap group, however there was no significant difference observed. There were six implants which failed to osseointegrate after the healing period, five of them were from the normal flap group and the last one of them was from the mini-flap group. Three out of the six failed implants were from the irradiated group, while the other failed three implants were from the non-irradiated group.