Browsing by Author "Ozsoy, Omur Polat"

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    Comparison of Dentofacial and Periodontal Effects of Rapid and Semi-rapid Maxillary Expansion
    (2017) Ozsoy, Omur Polat; Gonuldas, Sefika Ruzin; Pamukcu, Hande; Kural, Feride; 0000-0002-4226-4034; AAZ-4624-2021; AAL-9808-2021
    Objective: The purpose of this study was to compare the skeletal, dentoalveolar and periodontal effects that occurred after rapid maxillary expansion (RME) and semirapid maxillary expansion (SRME) with an acrylic splint bonded expansion appliance and also to compare the degree of root resorption in the supporting teeth during expansion. Materials and Methods: The sample of the study included 19 patients having maxillary constriction requiring bilateral upper premolar extraction. The semi-rapid group consisted of 10 patients and the rapid group consisted of 9 patients. Lateral and posteroanterior (PA) cephalometric radiographs were taken at the beginning of the treatment, at the end of expansion and after 3 months of retention period. Eleven patients underwent low-dose computed tomography (CT) at the beginning of treatment and at the end of retention period, after giving informed consent. The evaluation of root resorption was made using a scanning electron microscope from the extracted teeth. Results: Both lateral and PA radiographs showed similar changes between the groups. Posterior nasal cavity width, palatal maxillary width, the distance between palatinal roots and the distance between incisor roots showed significant increase in the CT measurements. Buccal bone thickness decreased and palatal bone thickness increased in all molar and premolar teeth examined. Root resorption was seen in both groups, but no significant differences were observed between the groups. Conclusion: Some differences were seen in short-time effects between SRME and RME but these differences were temporary and disappeared at the end of the retention period. The qualitative evaluation of the roots showed that the location and degree of the root resorption were similar between the groups.
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    A comparison of treatment results of adult deep-bite cases treated with lingual and labial fixed appliances
    (2021) Pamukcu, Hande; Ozsoy, Omur Polat; 33886959; AAZ-4624-2021
    Objectives: To compare the cephalometric treatment results of adult deep-bite cases after labial and lingual fixed orthodontic treatment. Materials and Methods: A total of 102 patients underwent lingual orthodontic treatment and complete records were evaluated. The following inclusion criteria were used: patients who had Angle Class I or mild Class II malocclusion; comprehensive orthodontic treatment that did not include intrusion mechanics or any extractions; patients with an initial overbite of more than 3.7 mm. Thirteen patients met the inclusion criteria. These cases were matched with the same number of patients according to age with a labial orthodontic treatment group. Pre- and post-treatment cephalometric radiographs were evaluated. Independent t test or Fisher exact tests were performed to assess the differences between the groups. Results: Proclination of the upper incisors was higher in the labial group. Incisor mandibular plane angle (IMPA) showed an increase of 1.28 in the lingual group and 9.78 in the labial group. Lower incisor edge was approximately in a stable sagittal position in the lingual group but significant lower incisor proclination was seen in the labial group. The lower incisors were intruded (-1 mm) in the lingual group but lower incisors were minimally extruded (0.3 mm) in the labial group. No significant difference was found in the movements of upper and lower molars for both groups. Conclusions: The nature of lower incisor movement involved less protrusion in lingual orthodontics than the labial treatment. Lingual orthodontic treatment is a better option in adult cases where intrusion of lower incisors without labial tipping is desired.
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    Evaluation Of Maxillary Dimensional Changes In The Mixed Dentition: Clear Aligners Vs Acrylic Expanders
    (Başkent Üniversitesi Diş Hekimliği Fakültesi, 2024-07-10) Pamukcu, Hande; Ozsoy, Serhat; Aksoy, Polat Can; Ozsoy, Omur Polat
    Objectives: To compare changes in upper arch dimension and molar inclination between Invisalign First (IF) and removable acrylic expander (RE) treatments during the mixed dentition period. Materials and Methods: Seventeen patients meeting inclusion criteria underwent IF treatment and were age matched with a group that received treatment with a removable acrylic expander (RE). Intercanine width (ICW), intermolar width, arch depth, buccolingual inclination of the first molars (MI), surface area (SA) and volume (VAP) of the anterior palate, and expansion were compared before and after treatment. The predictability of expansion was calculated for the IF group. Analysis of variance and Kruskal-Wallis tests were used to assess differences. Results: The ICW increased significantly by 2.14 mm in the IF group and 3.49 mm in the RE group, with no significant intergroup difference. Both groups exhibited significant increases in intermolar width (P < .05), except for intermolar distopalatal width in the IF group (P 1/4 .246). Mesiobuccal rotation of the first molar was observed with IF treatment. Although SA and VAP increased in both groups, the changes were not significant for the IF group (P . .05). The RE group exhibited significantly higher increases (P < .05), with an SA increase of 34.32 mm2 and VAP increase of 119.15 mm3. MI changes were in the opposite directions. The prediction accuracy of expansion was 70.28% for canines and 34.12% for first molars. Conclusions: Both appliances effectively expanded the intercanine region in growing patients. Expansion predictability was lower in first molars than in canines for the IF group. Removable acrylic expanders could be a choice of preference for expansion targeted to the molar region. (Angle Orthod. 2024;94:392-399.)
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    Extraction Orthodontic Treatment in an Autistic Patient
    (2017) Ozsoy, Omur Polat; Bingol, Sinem Ince; 30112489; W-6452-2019
    Autism is a condition that restricts brain development. Early diagnostic criteria are as follows: less responsive to social stimuli, inability to develop natural speaking skills, lack of communication skills, and limited and repetitive behaviors. Orthodontic treatment is a challenging process for doctors in autistic patients. The clinical and cephalometric examination of a 17-year and 7-month-old autistic patient revealed class I malocclusion, increased vertical dimensions, proclined upper and lower incisors, and inconsistent lip closure. The treatment plan involved four premolar extractions from each quadrant. Upper and lower 1. premolar extraction with fixed treatment caused reduction in vertical dimensions and significant improvement in lip closure and incisor inclination. Due to the increased metabolic activity in these patients, treatment was completed in 13 months. As a result, autistic patients can be successfully treated. In this process, it is important to include communication as a major part of treatment.
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    Indirect Bonding Revisited
    (2016) Pamukcu, Hande; Ozsoy, Omur Polat; 30112479
    In recent years, the popularity of indirect bonding increased due to advantages such as reduction of chair time and enhancement of patient comfort. Although the indirect bonding technique has improved over the years, the literature has shown different techniques of bracket placement; furthermore, new materials were specially developed for this technique. The aim of this article is to provide a review of the literature, advantages, disadvantages, and laboratory and clinical stages of the indirect bonding technique.
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