Scopus İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/11727/4809

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    The Effect of Radiotherapy on the Marginal Adaptation of Class II Direct Resin Composite Restorations: A Micro-computed Tomography Analysis
    (2022) Oglakci, B.; Burduroglu, D.; Eris, A. H.; Mayadagli, A.; Arhun, N.; 35226728
    This laboratory study was designed to evaluate the marginal adaptation of Class II mesio-occluso-distal (MOD) restorations at the cervical region with micro-computed tomography (micro-CT). Two groups of restorations were compared: 1) those that had been exposed to radiotherapy before restoration was performed using a universal adhesive in etch-and-rinse and self-etch modes; and 2) those that had previously been restored using a universal adhesive in etch-and-rinse and self-etch modes and had subsequently undergone radiotherapy. Sixty intact human molars were randomly divided into groups according to irradiation status: no radiotherapy (control group); radiotherapy followed by restoration (radiotherapy-first group); and restoration followed by radiotherapy (restoration-first group). These three groups were then subdivided into two groups each on the basis of adhesive application type (etch-and-rinse and self-etch modes), for a total of six groups (n=10/group). Standardized Class II MOD cavities were prepared. A universal adhesive (Clearfil Universal Bond Quick, Kuraray, Okayama, Japan) was applied. The teeth were restored with resin composite (Estelite Posterior Quick, Tokuyama, Tokyo, Japan). The radiotherapy protocol was conducted with 60 gray (Gy) at 2 Gy/day, five days a week for six weeks. Adhesive defects were analyzed in distal and mesial views and evaluated with micro-CT (SkyScan 1174v2, Kontich, Antwerp, Belgium) on the basis of the volume of black spaces between the cavity walls and the restorative materials (mm(3)). The data were analyzed using the Kruskal-Wallis, Mann Whitney U and Wilcoxon tests (p<0.05). The radiotherapy protocol did not affect the marginal adaptation of the universal adhesive at the cervical regions. Regarding the application modes, for the radiotherapy-first group, the self-etch mode caused significantly higher adhesive defects than the etch-and-rinse mode at the dentin margin. For the no-radiotherapy group, the adhesive defects at the dentin margin were significantly higher than at the enamel margin with the application of the etch-and-rinse mode.
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    Risk Factors and Treatment Options for Persistent Hyperparathyroidism After Kidney Transplantation
    (2020) Kirnap, Nazli Gulsoy; Kirnap, Mahir; Sayin, Burak; Akdur, Aydincan; Tutuncu, Neslihan Bascil; Haberal, Mehmet; 0000-0002-8726-3369; 0000-0002-3462-7632; 0000-0002-1816-3903; 0000-0001-8287-6572; 31924405; AAA-3068-2021; AAJ-8097-2021; ABG-5027-2020; J-3707-2015
    Background. Kidney transplantation (KT) corrects secondary hyperparathyroidism. However, persistent hyperparathyroidism (pHPT) may be observed in some patients post-KT. This study aims to evaluate the risk factors and treatment options for pHPT. Materials and methods. The study population comprises 1054 patients who underwent KT between January 2001 and May 2019. Serum samples were analyzed for calcium (Ca), phosphorus, creatinine, intact parathyroid hormone (iPTH) and estimated glomerular filtration rate. Results. The prevalence of pHPT following KT is 14%. Ninety pHPT patients were compared with 550 non-pHPT patients. The median duration of pre-KT dialysis was longer, and pre-KT serum Ca, P, and iPTH levels were significantly higher in the pHPT group than the non-HPT group. The pHPT of 46 patients (51%) received medical treatment. The remaining 44 patients (49%) had parathyroidectomy (PTx) if symptoms or signs (or both) of pHPT continued. Subtotal PTx was performed in 35 patients, and minimally invasive PTx was performed in 9 patients. Conclusion. Based on our study results, the most important risk factors for post-KT pHPT are long dialysis duration and high pre-KT iPTH levels. In patients who underwent KT, if pHPT lasts longer than 1 year, surgical treatment is the recommended approach. Based on our experience, the treatment method to be performed in pHPT should be 3+1/2 PTx.
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    Lacrimal dilator-facilitated incisionless vs. standard sub-Tenon's block: a randomized, prospective and non-inferiority comparative study
    (2020) Coban-Karatas, Muge; Cok, Oya Yalcin; Kumar, Chandra M; 0000-0003-3004-2626; 33005046; AAI-7998-2021
    Background/objectives Standard sub-Tenon's block (STB) involves incision (dissection) of conjunctiva and Tenon's capsule with the help of blunt scissors and forceps, insertion of a blunt sub-Tenon's cannula under the Tenon's capsule and injection of local anaesthetic agent. STB is frequently associated with minor complications such as chemosis and postoperative subconjunctival haemorrhage but rare sight and life-threatening complications. To reduce these minor complications, several variations of incisionless STB have been described however, there are no comparative data. One such incisionless STB involves the use of lacrimal dilator which is easily available in the operating theatre. We compared incisionless lacrimal dilator-facilitated with the standard STB for effectiveness, chemosis, and postoperative subconjunctival haemorrhage. Subjects/methods After obtaining ethical approval, patients scheduled to undergo elective phacoemulsification cataract surgery were enroled to receive incisionless lacrimal dilator-facilitated STB (Group LD) or a standard STB using Wescott scissors and blunt forceps (Group WS). All patients received 3 mL 2% lidocaine without any adjuvant. No sedation was administered. Demographics of the patients, duration of the procedure, analgesia, akinesia, duration of the procedure intraoperative chemosis, and postoperative subconjunctival haemorrhage were compared. Results Both groups were comparable for demographic data, duration of the procedure, analgesia, and akinesia (p > 0.05). The severity of chemosis and postoperative subconjunctival haemorrhage were significantly lower in Group LD (n = 32) in comparison to Group WS (n = 31) (p < 0.001). Conclusions Incisionless lacrimal dilator-facilitated STB decreases intraoperative chemosis and postoperative conjunctival haemorrhage in comparison to standard STB. Analgesia and akinesia are comparable in both techniques.