Browsing by Author "Aydogan, Cihan"

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Child Perceptions Questionnaire 11-14 in Turkish Language in an Orthodontic Patient Sample
(Istanbul Univ Press, Istanbul Univ Rectorate, 2018) Aydogan, Cihan; Yilmaz, Ahmet Can; Alagoz, Arzu; Sadikzade, Dilruba Sanya
Purpose The Child Perceptions Questionnaire 11-14 (CPQ 11-14) is a generic tool that was developed to measure oral health-related quality of life in early adolescents. The aim of this study was to prepare a Turkish version of the CPQ 11-14 and to test its psychometric properties in an adolescent orthodontic patient sample. Materials and Methods The questionnaire was adapted to Turkish using a forward backward translation method, and it was found to be understandable in a pilot study (n=15). The Turkish version of the CPQ 11-14 was administered to 200 orthodontic consultation patients (aged 11-14 years). Retests were conducted in 50 patients 2 weeks after the first tests. The ICON index was used to determine the orthodontic treatment need. Decayed, missing, and filled teeth were also recorded with the DMFT index. Spearman correlations and t-tests were used to assess validity. Internal consistency was assessed using Cronbach's alpha coefficient, and intraclass correlation coefficients were calculated to assess test-retest reliability. Results Significant positive correlations were found between CPQ 11-14 scores and the global ratings of oral health (r=0.381), global ratings of well-being (r=0.350), ICON scores (r=0.211), and DMFT scores (r=0.233), supporting construct validity. Children who needed orthodontic treatment had a worse quality of life than those who did not need orthodontic treatment (p=0.016). Cronbach's alpha and intraclass correlation coefficients were calculated as 0.917 and 0.817, respectively, demonstrating good internal consistency and acceptable test-retest reliability. Conclusion The Turkish version of the CPQ 11-14 was found to be valid and reliable in 11-14-year-old orthodontic patients.
Effects of Ozone and Prophylactic Antimicrobial Applications on Shear Bond Strength of Orthodontic Brackets
(Aves Press Ltd, 2017) Alkan, Ozer; Coven, Betul Oktay; Ozcopur, Betul; Kazanci, Fatih; Kaya, Yesim; Aydogan, Cihan; Eskitascioglu, Gurcan
Objective: The present study aimed to evaluate the effects of ozone and prophylactic antimicrobial applications on the shear bond strengths and bond failure interfaces of orthodontic brackets. Methods: Sixty human canine teeth were randomly divided into three groups (n=20), receiving the following treatments: Group I-pumice prophylaxis (Isler Dental, Ankara, Turkey)+37% orthophosphoric acid (Dentsply, Rio de Janeiro, Brazil)+Transbond XT primer and adhesive (3M Unitek, Monrovia, USA); Group II-prophylaxis paste (Topex, NJ, USA)+37% orthophosphoric acid (Dentsply, Rio de Janeiro, Brazil)+Transbond XT primer and adhesive paste (3M Unitek, Monrovia, USA); and Group III-ozone application (Biozonix GmbH, Munich, Germany)+37% orthophosphoric acid (Dentsply, Rio de Janeiro, Brazil)+Transbond XT primer and adhesive (3M Unitek, Monrovia, USA). All specimens were stored at 37 degrees C water for 24 h. Shear bond strength was assessed using a universal testing device (Autograph AGS-X; Shimadzu, Japan). Adhesive remnant index (ARI) scores were obtained through examination of teeth under stereomicroscope at 10x magnification after debonding. Results: Shear bond strengths of orthodontic brackets were 16.10, 18.01, and 19.23 MPa for Groups I, II, and III, respectively. No statistically significant difference in shear bond strength of orthodontic brackets was found among the groups (p=0.273), based on Kruskal-Wallis analysis. Additionally, no significant difference was found in the ARI scores of each group using chi-square analysis (p=0.992). Conclusion: Shear bond strength of orthodontic brackets and ARI scores was not found to be negatively impacted by ozone application.
Extraversion and Openness To Experience Moderate the Relationship Between Orthodontic Treatment Need and Oral Health-Related Quality of Life in Adolescents: a Cross-Sectional Study
(E H Angle Education Research Foundation, inc, 2018) Aydogan, Cihan
Objective: To investigate the effects of personality traits to moderate the relationships between orthodontic treatment need and oral health-related quality of life (OHRQoL) in adolescents. Materials and Methods: A cross-sectional study was performed that included 230 subjects (125 girls and 105 boys) aged 11-14 years. Orthodontic treatment need was measured using the Index of Complexity, Outcome and Need (ICON). The Child Perceptions Questionnaire, the Basic Personality Traits Inventory (BPTI), and the Revised Life Orientation Test were used to assess the OHRQoL, basic personality dimensions, and dispositional optimism respectively. Potential moderation effects were evaluated with Spearman's correlations and multiple regression analyses. Results: There were weak correlations between orthodontic treatment need and quality of life with social and emotional well-being dimensions (r = 0.238, r = 0.296 and r = 0.209). A moderating effect of extraversion was observed in the relationship between orthodontic treatment need and OHRQoL, emotional well-being, and social well-being (SWB) (Delta R-2 = 0.03, Delta R-2 = 0.02, and Delta R-2 = 0.04, respectively). Openness to experience affected relationships between orthodontic treatment need and OHRQoL, and emotional well-being (EWB) (Delta R-2 = 0.03 and Delta R-2 = 0.04, respectively). In children with higher extraversion, the increase in ICON scores resulted in less increase in CPQ total, EWB, and SWB scores. In children with higher openness to experience, the increase influenced CPQ total and EWB scores similarly. Conclusions: The relationship between orthodontic treatment need and quality of life is moderated by personality traits. Early adolescents with higher extraversion and openness to experience are less affected by increased orthodontic treatment need.
Morphological Comparison of Cervical Vertebrae in Adult Females With Different Sagittal Craniofacial Patterns: a Cross-Sectional Study
(Medknow Publications & Media Pvt Ltd, 2016) Alkan, Ozer; Aydogan, Cihan; Akkaya, Sevil
Introduction: Cervical vertebral maturation (CVM) methods have gained popularity to assess growth and development status for orthodontic patients. Although craniofacial and craniocervical structures are known to be associated, there is no evidence in the literature if this relation might negatively affect the accuracy of CVM assessments. Therefore, this study aimed to comparatively investigate the sizes of the 2(nd), 3(rd), and 4(th) cervical vertebrae in adult females (radius union stage of skeletal maturity) who have different sagittal skeletal patterns. Materials and Methods: A cross-sectional study was conducted, and 151 lateral cephalometric radiographs of adult female patients were assessed in the study. Patients were assigned to three groups according to ANB angle. Parameters including concavity depth at the lower border of the 2(nd), 3(rd), and 4(th) cervical vertebrae and base length, upper border length, body length, posterior height, anterior height, and body height of the 3(rd) and 4(th) cervical vertebrae bodies were measured. One-way analysis of variance was used for between-group comparisons. Results: No statistically significant differences were found between groups in terms of concavity depth at the lower borders of the 2(nd), 3(rd), and 4(th) cervical vertebrae (P 0.05). Base length, upper border length, body length, posterior height, anterior height, and body height of the 3(rd) and 4(th) cervical vertebrae were also similar between groups (P 0.05). Conclusions: The results of this study supports that sagittal craniofacial pattern has no effect on the accuracy of using the methods assessing CVM and calculating cervical vertebral age.
Patients' and Parents' Concerns and Decisions About Orthodontic Treatment
(Korean Assoc Orthodontists, 2016) Kazanci, Fatih; Aydogan, Cihan; Alkan, Ozer
Objective: Patients' and parents' expectations are important in orthodontic treatment decision making. The literature generally demonstrates the perceived benefits of orthodontic treatment, but patients' and their parents' concerns about orthodontic treatment have not been investigated comprehensively. The aim of this study was to identify patients' and parents' concerns about orthodontic treatment and compare them according to sex, age, and treatment demand level. Methods: One hundred and eighty-nine children and their parents were interviewed about concerns related to orthodontic treatment. Patients and parents were asked about orthodontic treatment decisions. Answers were recorded as "yes," "no," or "don't know." Chi-squared and Fisher's exact tests were used to compare concerns between age groups, sexes, and treatment demand levels. Kappa statistics were used to assess agreement between patients and their parents. Results: Concerns about orthodontic treatment were gathered under 10 items as follows: "feeling pain," "the appearance of braces," "being teased," "avoiding smiling," "speech problems," "dietary changes," "problems with transportation," "economic problems," "long treatment duration," and "missing school." There was no statistically significant difference in concerns between the sexes or age groups. Some concern items and treatment demand were inversely related in patients. Cohclusions: The results of this study demonstrate patients' and parents' concerns about orthodontic treatment. Differences between the concerns of patients with different treatment demands imply that children might reject orthodontic treatment because of their concerns. Appropriate consultation of patients addressing their concerns may help reduce anxiety and improve the acceptance of treatment.