Person: KURU, LEYLA
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KURU
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LEYLA
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Publication Open Access Cytotoxicity of Different Nano Composite Resins on Human Gingival and Periodontal Ligament Fibroblast Cell Lines: An In Vitro Study(MDPI, 2020-03-01) YILMAZ GÖLER, AYŞE MİNE; Kavuncu, Gamze; Yilmaz, Ayse Mine; Yilmaz, Betul Karademir; Atali, Pinar Yilmaz; Altunok, Elif Cigdem; Kuru, Leyla; Agrali, Omer BirkanThe aim of this study is to determine the cytotoxicity of three different nano composite resins (CRs) on human gingival fibroblast (hGF) and periodontal ligament fibroblast (hPDLF) cell lines. These CRs selected were nanohybrid organic monomer-based Admira Fusion (AF), nanohybrid Bis-(acryloyloxymethyl) tricyclo [5.2.1.0.sup.2,6] decane-based Charisma Topaz (CT), and supra nano filled resin-based Estelite Quick Sigma (EQS). MTT assay was performed to assess the cytotoxicity of CRs at 24 h and one week. AF and EQS applied on hGF cells at 24 h and one week demonstrated similar cytotoxic outcomes. Cytotoxicity of CT on hGF cells at one week was higher than 24 h (p = 0.04). Cytotoxicity of CT on hGF cells was higher at 24 h (p = 0.002) and one week (p = 0.009) compared to control. All composites showed higher cytotoxicity on hPDLF cells at one week than the 24 h (AF; p = 0.02, CT; p = 0.02, EQS; p = 0.04). AF and EQS demonstrated lower cytotoxicity on hPDLF cells than the control group at 24 h (AF; p = 0.01, EQS; p = 0.001). CT was found more cytotoxic on hPDLF cells than the control (p = 0.01) and EQS group (p = 0.008) at one week. The cytotoxicity of CRs on hGF and hPDLF cells vary, according to the type of composites, cell types, and exposure time.Publication Metadata only Evaluation of gingival crevicular fluid transforming growth factor-1 level after treatment of intrabony periodontal defects with enamel matrix derivatives and autogenous bone graft: A randomized controlled clinical trial(MEDKNOW PUBLICATIONS & MEDIA PVT LTD, 2016) YARAT, AYŞEN; Agrali, O. B.; Kuru, B. E.; Yarat, A.; Kuru, L.Aim: The present study aimed to evaluate the effects of enamel matrix derivatives (EMD) either alone or combined with autogenous bone graft (ABG) applied to intrabony defects in chronic periodontitis patients on clinical/radiographic parameters and gingival crevicular fluid (GCF) transforming growth factor-1 (TGF-1) level and to compare with open flap debridement (OFD). Materials and Methods: A total of 30 deep intrabony defects in 12 patients were randomly treated with EMD + ABG (combination group), EMD alone (EMD group), or OFD (control group). Clinical parameters, including plaque index, gingival index, bleeding on probing, probing depth, relative attachment level, and recession were recorded at baseline and 6 months postsurgery. Intrabony defect fill percentage was calculated on the standardized radiographs. TGF-1 level was evaluated in GCF just before surgery and 7, 14, 30, 90, 180 days after surgery using enzyme-linked immunosorbent assay. Results: All treatment procedures led to significant improvements at 6 months (P 0.01). Gain in attachment level (P 0.01) and radiographic defect fill (P 0.05) of the combination and EMD groups were found to be significantly higher than those of the control group, while the use of EMD either with ABG or alone was observed to produce significantly less recession than the OFD (P 0.05). Conclusion: The findings suggest no clinical and radiographic differences between the combination and EMD groups whereas GCF TGF-1 level demonstrates an increase during the healing phase and is positively affected from EMD.Publication Metadata only Postmenopozal Osteoporözlü ve Kronik Periodontitisli Kadınlarda Periodontal Tedavi ile Birlikte Kullanılan Alendronatın Klinik ve Mikrobiyolojik Bulgular Üzerine Etkisi.(2008-05-22) KURU, LEYLA; KADİR, TANJU; TOPRAKSEVEN R. E., KURU L., NOYAN F. Ü., KURU B., KADİR T.Publication Metadata only Oral squamous cell papilloma: a case report(AVES PRESS LTD, 2015) ÖZTÜRK ÖZENER, HAFİZE; Ozener, Hafize Ozturk; Kuru, Leyla; Kuru, BaharOral squamous cell papilloma (OSCP) is a benign proliferation of the stratified squamous epithelium, which results in a papillary or verrucous exophytic mass. OSCP is usually associated with human papilloma virus. Although any surface of the oral cavity can be affected, the sites of predilection for localization of the lesions include the tongue, lip and soft palate. In this report, treatment and histological findings of a local gingival enlargement at the vestibular side of the upper right central tooth of a 10 year-old systemically healthy girl are presented. The lesion was asymptomatic and had shown a slow growth. Solitary, exophytic lesion was clinically soft, pink-white in color and appeared as cauliflower. Dental and periodontal tissues were radiographically normal. One month after scaling and root planing, under local anesthesia the lesion was excised and this was followed by the use of Nd: YAG laser (1064 nm, 20 Hz, 3 W) to control bleeding, minimize pain and scarring in post-operative period, and provide sterilization. Macroscopic examination revealed that the lesion was 1.1x0.5x0.2 cm(3) in size, yellow in colour and had a rough surface, while histological examination showed multi-layer connective tissue underlying the squamous epithelium, numerous rete pegs and spinous cell proliferation at the papillary and OSCP was diagnosed. There was no evidence of viral cytopathic effect or malignancy of the lesion. No recurrence was observed during the 4-year follow-up period..Publication Open Access Osteocalcin and cross‑linked C‑terminal telopeptide of type I collagen in gingival crevicular fluid during piezocision accelerated orthodontic tooth movement: A randomized split‑mouth study(2023-04-01) YILDIRIM, HATİCE SELİN; KURU, LEYLA; Yıldırım H. S., Ateş M., Oktay Gün I., Kuru B., Çakırer B., Kuru L.Background: Piezocision, a minimally invasive surgical procedure, has been used to accelerate tooth movement. Aim: The aim of this randomized split‑mouth study was to evaluate gingival crevicular fluid (GCF) osteocalcin (OC) and type I collagen cross‑linked C‑terminal telopeptide (ICTP) levels during canine distalization with and without piezocision acceleration. Material and Methods: Fifteen systemically healthy subjects (M:F 7:8, 16.27 ± 1.14 years) requiring extraction of maxillary first premolars before retraction of canines were included in the study. Piezocisions were randomly carried out on one of the maxillary canines while bilateral canines served as controls. Canine distalization was conducted using closed‑coil springs applying a force of 150 g/side by using miniscrews as anchorage. GCF sampling was performed from maxillary canine mesial and distal sites at baseline, 1, 7, 14, and 28 days. The GCF levels of OC and ICTP were detected by enzyme-linked immunosorbent assay (ELISA). The rate of tooth movement was evaluated at 2‑week intervals. Results: The amounts of canine distalization from baseline to 14 and 28 days in the piezocision group were significantly higher than the control group (P < 0.05). The GCF OC level of the piezocision group on the tension side and the ICTP level of the same group on the compression side were higher than the respective sides of the control group on day 14 (P < 0.05). Conclusions: Piezocision was found to be an effective treatment procedure for accelerating canine distalization accompanied by increased levels of OC and ICTP.Keywords: ICTP, osteocalcin, piezosurgey, tooth movementPublication Metadata only Changes in transforming growth factor-beta1 in gingival crevicular fluid following periodontal surgery(2004) KURU, LEYLA; Kuru, L.; Griffiths, G. S.; Petrie, A.; Olsen, I.OBJECTIVES: Growth factors play a major part in wound healing, including in the periodontium. However, the presence of growth factors in gingival crevicular fluid (GCF) in humans during periodontal wound healing has not yet been determined. Our hypothesis is that such factors are present in GCF and that changes in their levels might be of value as a prognostic marker of wound-healing activity and therapeutic progress following periodontal surgery. The aim of this study was therefore to measure transforming growth factor-beta1 (TGF-beta1) in GCF collected from sites that have undergone guided tissue regeneration (GTR) and conventional flap (CF) surgery and to compare these with GCF collected from unaffected healthy sites. MATERIALS AND METHODS: GCF samples were collected, using filter paper strips, at baseline (pre-surgical) and then at intervals up to 26 weeks from 16 patients undergoing GTR and from 11 patients undergoing CF surgery. After elution and acid treatment, TGF-beta1 levels were measured by ELISA. RESULTS: Treatment of periodontal defect sites significantly reduced the mean probing pocket depth (PPD) and improved the mean lifetime cumulative attachment loss (LCAL). Average GCF volumes also significantly increased at all sites at 2 weeks post-surgery and thereafter declined to baseline levels, except at the GTR test sites that were still elevated at 7 weeks. TGF-beta1 could be detected in almost all GCF samples, and 2 weeks after surgery, the average levels increased two-fold at the surgically treated but not at the control sites, which remained unchanged. CONCLUSION: TGF-beta1 is readily detectable in GCF and increases transiently following periodontal surgery. This suggests that changes in the levels of this growth factor in GCF might be useful for monitoring the progress of periodontal repair and regeneration.Publication Open Access Periodontal treatment approach for dihydropyridine induced gingival overgrowth with or without drug substitution(2022-06-01) ÖZTÜRK ÖZENER, HAFİZE; KURU, LEYLA; Eroğlu O., YETİŞ E., ÖZTÜRK H., KURU L.Objectives: The aim of this study is to evaluate clinical effectiveness of nonsurgical periodontal treatment (NSPT) in patients with drug induced gingival overgrowth (DIGO) with or without drug substitution in comparison with patients presenting inflammatory gingival overgrowth (GO). Material and Methods: A total of 17 patients with generalized GO were included in this clinical trial. Based on the medical physicians consultation, DIGO patients who continued using dihydropyridine were allocated to the Group 1 (n=6), whereas patients whose drug substitution was carried out were allocated to the Group 2 (n=5). Group 3 (n=6) subjects had inflammatory GO. All study groups received NSPT for 4 sessions. At baseline and 6 weeks after NSPT, plaque index, gingival index, bleeding on probing (BOP), probing depth (PD) and, plaster model and photographic GO scores were measured. Results: NSPT resulted in significant decreases in periodontal clinical parameters in all groups (p<0.05). Intergroup comparisons of baseline measurements revealed no statistically significant differences (p>0.05) except PD value which was higher in the Group 1 compared to the Group 2 (p<0.05). Comparisons of post-NSPT data among groups exhibited statistically significant difference only between Groups 1 and 2 in the model and photographic GO scores (p<0.05). Conclusions: After the 6-week evaluation period, NSPT was found to be an effective method in reducing the severity of inflammation and size of overgrown gingival tissues in patients with DIGO and inflamatory GO. Substitution of drug causing GO provided further contribution to NSPT regarding the size of overgrown gingiva in the patients with DIGO.Publication Open Access Peri-implantitis and Severity Level(2020-02) KURU, LEYLA; Elemek, Eser; Agrali, Omer Birkan; Kuru, Bahar; Kuru, LeylaAbstract Objectives Different diagnostic criteria were used for diagnosis of peri-implant diseases. The aim of this cross-sectional study was to explore prevalence of peri-implant diseases and subclassify peri-implantitis based on different levels of radiographic and clinical findings. Materials and Methods Two hundred patients having 655 dental implants were included in this study. In addition to clinical measurements, standard long-cone parallel technique was used to evaluate marginal bone level around implants. Following diagnosis of peri-implant diseases, peri-implantitis was further subclassified using a severity leveling in terms of marginal bone level and probing depth. Results Mean age of 200 subjects was 52.8 ± 12.2 years and 63% were females. In total, bleeding on probing was present in 93% and suppuration in 27% of implants. On subject basis, 2.5% were diagnosed as healthy, 28% with peri-implant mucositis (PM), and 69.5% with peri-implantitis, whereas on implant basis, 3.6% were healthy, 36% presented PM, and 60.4% peri-implantitis. Furthermore, when severity leveling was applied, peri-implantitis prevalence changed markedly and ranged from 14.5 to 31.0% at the subject level and from 10.0 to 22.0% at the implant level. Subgingival restoration margins were observed in 70.6% of patients for implants with PM and in 44% patients for implants with peri-implantitis. Most of the implants with peri-implantitis were with platform match (71.5%). Conclusions Applying different thresholds to the peri-implantitis definition yielded different prevalence rates ranging from 10 to 31%. As no established diagnostic criteria are being used today, results from clinical studies may not reflect the true disease prevalence.Publication Metadata only Effects of 810-nanometer diode laser as an adjunct to mechanical periodontal treatment on clinical periodontal parameters and gingival crevicular fluid volume of residual periodontal pockets(MEDKNOW PUBLICATIONS & MEDIA PVT LTD, 2017) KURU, LEYLA; Meseli, S. E.; Kuru, B.; Kuru, L.Background: Aim of this randomized controlled parallel-designed study was to evaluate the effects of diode laser as an adjunct to mechanical periodontal treatment on clinical parameters and gingival crevicular fluid (GCF) volume of the residual pockets diagnosed following initial periodontal treatment in chronic periodontitis (CP) patients. Materials and Methods: A total of 84 residual pockets on single-rooted teeth in 11 CP patients were included and randomly assigned into three groups. Residual pockets were treated either only by mechanical treatment (Group M) (n = 28) or only by diode laser disinfection (Group L) (n = 28) or by a combination of these techniques (Group M L) (n = 28). Plaque index, gingival index (GI), bleeding on probing (BoP), probing depth (PD), clinical attachment level and gingival recession were assessed at baseline and 8 weeks after treatment of residual pockets. GCF samples were collected at baseline, 1 and 8 weeks after treatment. Results: All treatment modalities resulted in significant reductions in PD and attachment gain. GI and BoP showed a greater reduction in both Group M and Group M L than Group L (P < 0.001), but there was no difference between the Groups M and M L (P 0.05). No difference was also found among groups for other clinical parameters. GCF volume decreased significantly in the Groups M and M L (P < 0.05) but there was no difference among the groups (P 0.05). Conclusion: Results demonstrated clinical improvements on residual pockets in CP patients treated with all three modalities. Moreover, our findings suggest that application of diode laser as an adjunct to mechanical periodontal treatment doesn't demonstrate any additional clinical effect on the residual pockets.Publication Metadata only Changes in soluble adhesion molecules in gingival crevicular fluid following periodontal surgery(AMER ACAD PERIODONTOLOGY, 2005) KURU, LEYLA; Kuru, L; Kirby, AC; Griffiths, GS; Petrie, A; Olsen, IBackground: Inflammation of periodontal tissues during postoperative wound healing is mediated by cell surface adhesion molecules. Soluble forms of these antigens have also been identified and shown to be important in immunoregulatory processes, but have previously not been investigated during periodontal repair and regeneration. The present study has examined the presence and possible changes in soluble intercellular adhesion molecule-1 (sICAM-1; CD54) and lymphocyte function-associated antigen-3 (sLFA-3; CD8) in gingival crevical fluid (GCF) following periodontal surgery. Methods: GCF samples were collected from four groups: 1) a guided tissue regeneration (GTR) test; 2) a GTR control, at least one complete tooth unit away from the periodontal defect; 3) a conventional flap (CF) surgery; and 4) a crown lengthening (CL). Sandwich enzyme-linked immunosorbent assay (ELISA) was used to measure the levels of sICAM-1 and sLFA-3 in the GCF samples. Results: A marked increase in GCF volumes was found in all sites after surgery, although a persistent increase was associated only with the period of membrane retention at the GTR test sites. In addition, sICAM-1 and sLFA-3 were found in the GCF of healthy as well as diseased sites prior to treatment and the total amounts of both increased transiently following surgical intervention, especially sLFA-3. However, the concentrations of these GCF components, particularly sICAM-1, tended to decrease. Conclusions: The temporal decrease in the concentration of sICAM-1 and sLFA-3 in GCF may serve to enhance inflammatory reactions at surgically-treated periodontal sites, thereby limiting repair and regeneration in the periodontium. These soluble adhesion molecules may thereby be of potential therapeutic value and might also be useful markers for monitoring periodontal wound healing.