Diş Hekimliği Fakültesi / Faculty of Dentistry

Permanent URI for this collectionhttps://hdl.handle.net/11727/2120

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    Comparison Of The Accuracy Of Three Interproximal Reduction Methods Used In Clear Aligner Treatment
    (CLINICAL ORAL INVESTIGATIONS, 2024-01-15) Gulec-Ergun, Pelinsu; Arman-Ozcirpici, Ayca; Atakan-Kocabalkan, Azize; Tuncer, Niluefer Irem
    ObjectivesTo comparatively assess 3 interproximal reduction (IPR) methods used in clear aligner treatment with regard to accuracy, and patient perception of discomfort and anxiety.Materials and methodsA total of 42 patients, treated with the Invisalign (R) system, were included in this prospective trial and received one of the following IPR methods: hand-operated abrasive strips (group 1; 14 patients, 150 teeth), motor-driven 3/4 oscillating segmental discs (group 2; 14 patients, 134 teeth), or motor-driven abrasive strips (group 3; 14 patients, 133 teeth). Accuracy was evaluated using the difference between planned and executed IPR. Anxiety and discomfort levels experienced by the patients were evaluated using a questionnaire of 17 questions.ResultsThe accuracy of IPR was high in groups 2 and 3; however, it was low in group 1 with the executed IPR significantly less than the planned amount. On quadrant-level, executed IPR was significantly less in the upper left quadrant in group 1, and significantly more in the upper right quadrant in group 2. The difference between planned IPR and executed IPR was significant for teeth 11, 21, 32, 33, and 43 in group 1, indicating deficiency. The average difference between planned IPR and executed IPR was 0.08 mm for group 1, 0.09 mm for group 2, and 0.1 mm for group 3. Anxiety and discomfort levels did not differ between the methods, but a negative correlation was observed between age and discomfort and anxiety levels.ConclusionsThe overall accuracy of the 2 motor-driven IPR methods was found to be better than the hand-operated system. Maxillary central incisors and mandibular canines were more prone to IPR deficiency when hand-operated abrasive strips were utilized. Patients were similarly comfortable with all 3 methods, and discomfort and anxiety levels decreased with age.Clinical relevanceMotor-driven methods have proven to be more effective when compared to the hand-operated ones by means of precision, speed, and patient comfort. If the clinician favors a hand-operated method, it may be advised to perform slightly more IPR especially on mandibular canines and maxillary central incisors.
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    Characterizing The Unseen: Clinical And Radiographic Perspectives On Unilateral Condylar Hyperplasia
    (JOURNAL OF STOMATOLOGY ORAL AND MAXILLOFACIAL SURGERY, 2024-12) Ergezen, Ezgi; Salyut, Ardakgul; Akdeniz, Sidika Sinem; Cubuk, Secil
    Objectives: Unilateral condylar hyperplasia (UCH), marked by progressive condylar growth, occurs between ages 11-30 with unclear etiology. This retrospective study aims to clarify the clinical, radiographic, and demographic features of UCH to improve its diagnosis and treatment. Material and methods: Data for all patients included in this study were retrieved from the archive. Inclusion criteria were the diagnosis of UCH supported by a positive bone scan above 10% of condylar uptake in SPECT/ CT, the patient's history of progressive facial asymmetry, symptoms confirmed by the orthodontist during follow-up, and clinical and radiological evaluation. Demographic characteristics, along with volumetric and linear measurements, were statistically evaluated. Results: Forty-one patients were included in this study with 70.73% female predominance. Patients were classified as transverse and vertical type condylar hyperplasia (CH) according to their prominent asymmetry characteristics. Eighteen patients were classified as vertical type CH and 23 patients were classified as transverse type CH. Twenty had left-side condylar overgrowth, and 21 had right-side overgrowth. Condylar volume difference was significantly higher in vertical type CH patients compared to transverse type CH (p = 0.004). No correlation was found between growth rate (bone scan uptake ratio) and condylar volume difference in patients with vertical type and transverse type CH patients (p = 0.205). Conclusion: Particularly in cases that exhibit a pronounced vertical growth tendency, volumetric and linear measurements can guide the timing and treatment planning process. (c) 2024 Elsevier Masson SAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
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    Effects of various analgesics on the level of prostaglandin E2 during orthodontic tooth movement
    (2014) Tuncer, Zeynep; Polat-Ozsoy, Omur; Demirbilek, Muge; Bostanoglu, Ebru
    AIM: The aim of this double-blind, randomized, placebo-controlled clinical study was to evaluate the analgesic effects of preoperative/postoperative ibuprofen and acetaminophen use after bonding and to find a relation between the pain level and the amount of prostaglandin released. MATERIALS AND METHODS: Forty-eight patients were included and randomly divided to three equal groups that received either ibuprofen, acetaminophen or placebo for pain relief. The pain levels were measured before bonding, after bonding, at first, second, third, and seventh days on a 100 mm visual analogue scale (VAS) and gingival crevicular fluid (GCF) samples were collected at the same time intervals to measure the amount of prostaglandin E2 (PGE2) released. PGE2 levels were determined with ELISA test. The results were evaluated with Wilcoxon and Kruskal-Wallis tests with Bonferroni correction. RESULTS: Acetaminophen and placebo groups showed similar pain levels during the first 2 days, whereas ibuprofen group showed lower pain levels during the first day after bonding. PGE2 levels did not show statistically significant difference in time within the analgesic groups. No significant relation between the pain perceived and PGE2 released was found. LIMITATIONS: The biggest limitation of this study is the subjective nature of pain and its method of evaluation. CONCLUSIONS: The perception of pain by patients taking ibuprofen and acetaminophen at pre/post appliance placement was not different from patients taking placebo. No time-related differences in PGE2 level were found between the groups and no significant correlation was found between the perception of pain and PGE2 levels.