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    Correction of Posttraumatic Maxillary Deficiency by Anterolateral Alveolar Osteotomy
    (1998) Gürol, M.; Uçkan, S.; Güler, N.; Kürkçü, M.; İnan, O.
    Anterolateral alveolar osteotomy was performed in a patient who experienced facial trauma in a traffic accident. Bony sequela had remained in the maxilla after the emergency surgery, affecting the facial appearance. A different technique of osteotomy for this unusual type of deformity is presented.
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    Effects of Different Acids and Etching Times on the Bond Strength of Glass Fiber-Reinforced Composite Root Canal Posts to Composite Core Material
    (2012) Güler, A. U.; Kurt, M.; Duran, I.; Uludamar, A.; İnan, O.
    Objective: To investigate the effects of different acids and etching times on the bond strength of glass fiber-reinforced composite (FRC) posts to composite core material. Method and Materials: Twenty-six FRC posts (FRC Postec Plus) were randomly divided into 13 groups (each n = 2). One group received no surface treatment (control). The posts In the other groups were acid etched with 35% phosphoric acid and 5% and 9.6% hydro- fluoric acid gel for four different etching times (30. 60. 120. and 180 seconds). A cylindric polytetrafluoroethylene mold was placed around the treated posts and filled with dual-cure composite core material (MultiCore Flow). All samples were light cured for 60 seconds. After 24 hours of water storage, the specimens were sectioned perpendicularly to the bonded interface under water cooling to obtain 2-mm post-and-core specimens. Eight specimens were made from each group. Push-out tests were performed at a crosshead speed of 0.5 mm/min using a universal testing machine. Data were analyzed by one-way ANOVA followed by the Tukey honestly significant difference test (ot = .05). Results: The lowest bond strength was observed in the control group (12.51 megapascal [MPa]). No statistical significant difference was observed among group H5-120 (20.31 MPa). group H9-120 (20.55 MPa). or group P-180 (20.57 MPa) (P > .05). These groups demonstrated the highest bond strength values (P < .05). Conclusion: For the FRC posts, all acid-etch- ing procedures tested showed significantly increased bond strength when compared with the control group. Acid-etching with 5% hydrofluoric acid and 9.6% hydrofluoric acid for 2 minutes and with 35% phosphoric acid for 3 minutes (groups H5-120. H9-120. and P-180. respectively) demonstrated the highest bond strength values between the FRC post and composite core material. Although the bond strength was increased by prolonged acid etching, the micro structure of the FRC posts might have been damaged. © 2012 by Quintessence Publishing Co Inc.
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    Monitoring bone morphogenetic protein-2 and-7, soluble receptor activator of nuclear factor-kappa B ligand and osteoprotegerin levels in the peri-implant sulcular fluid during the osseointegration of hydrophilic-modified sandblasted acid-etched and sandblasted acid-etched surface dental implants
    (WILEY-BLACKWELL, 2015) Dolanmaz, D.; Sağlam, M.; İnan, O.; Dündar, N.; Alnıaçık, Gamze; Trak, B. Gürsoy; Koçak, E.
    Background and ObjectiveThe implant surface plays a major role in the biological response to titanium dental implants. The aim of this study was to investigate levels of soluble receptor activator of nuclear factor-B ligand (sRANKL), osteoprotegerin (OPG), bone morphogenetic protein-2 (BMP-2) and -7 (BMP-7) in the peri-implant crevicular fluid (PICF) of different implants during the osseointegration period. Material and MethodsForty-seven patients (22 females and 25 males, mean age 47.3410.11) were included in this study. Forty-seven implants from two implant systems (group A1 (sandblasted acid-etched [SLA]-16), group A2 (hydrophilic-modified SLA [SLActive]-16), and group B (sandblasted acid-etched [SLA]-15) were placed using standard surgical protocols. PICF samples, plaque index, gingival index and probing depth measurements were obtained at 1 and 3mo after surgery. PICF levels of sRANKL, OPG, BMP-2/-7 were analyzed by ELISA. ResultsNo complications were observed during the healing period. No significant differences were observed in the PICF levels of sRANKL, OPG, BMP-2 and BMP-7 for all groups at any time point (p>0.05). A significant decrease was observed in BMP-2 levels in group A1 (p<0.05). A significant increase in BMP-7 levels was observed only for group A2 (p<0.05). There was a strong negative correlation between OPG and gingival index and a negative correlation between BMP-7 and plaque index (p<0.05). ConclusionConsidering the correlations between clinical and biochemical parameters, the levels of these cytokines in PICF during early healing of implants reflects the degree of peri-implant inflammation, rather than differences in the implant surfaces.