Yazar "Ileri, Zehra" seçeneğine göre listele
Listeleniyor 1 - 14 / 14
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Alveolar bone changes after asymmetric rapid maxillary expansion(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2015) Akin, Mehmet; Baka, Zeliha Muge; Ileri, Zehra; Basciftci, Faruk AyhanObjective: To quantitatively evaluate the effects of asymmetric rapid maxillary expansion (ARME) on cortical bone thickness and buccal alveolar bone height (BABH), and to determine the formation of dehiscence and fenestration in the alveolar bone surrounding the posterior teeth, using cone-beam computed tomography (CBCT). Materials and Methods: The CBCT records of 23 patients with true unilateral posterior skeletal crossbite (10 boys, 14.06 +/- 1.08 years old, and 13 girls, 13.64 +/- 1.32 years old) who had undergone ARME were selected from our clinic archives. The bonded acrylic ARME appliance, including an occlusal stopper, was used on all patients. CBCT records had been taken before ARME (T1) and after the 3-month retention period (T2). Axial slices of the CBCT images at 3 vertical levels were used to evaluate the buccal and palatal aspects of the canines, first and second premolars, and first molars. Paired samples and independent sample t-tests were used for statistical comparison. Results: The results suggest that buccal cortical bone thickness of the affected side was significantly more affected by the expansion than was the unaffected side (P < .05). ARME significantly reduced the BABH of the canines (P < .01) and the first and second premolars (P < .05) on the affected side. ARME also increased the incidence of dehiscence and fenestration on the affected side. Conclusions: ARME may quantitatively decrease buccal cortical bone thickness and height on the affected side.Öğe Asymmetric rapid maxillary expansion in true unilateral crossbite malocclusion: A prospective controlled clinical study(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2015) Ileri, Zehra; Basciftci, Faruk AyhanObjective: To investigate the short-term effects of the asymmetric rapid maxillary (ARME) appliance on the vertical, sagittal, and transverse planes in patients with true unilateral posterior crossbite. Materials and Methods: Subjects were divided into two groups. The treatment group was comprised of 21 patients with unilateral posterior crossbite (mean age = 13.3 +/- 2.1 years). Members of this group were treated with the ARME appliance. The control group was comprised of 17 patients with Angle Class I who were kept under observation (mean age = 12.3 +/- 0.8 years). Lateral and frontal cephalograms were taken before the expansion (T1), immediately after expansion (T2), and at postexpansion retention (T3) in the treatment group and at preobservation (T1) and postobservation (T2) in the control group. A total of 34 measurements were assessed on cephalograms. For statistical analysis, the Wilcoxon test and analysis of covariance were used. Results: The ARME appliance produced significant increases in nasal, maxillary base, upper arch, and lower arch dimensions (P < .01) and a clockwise rotation of the occlusal plane (P = .001). Conclusion: The ARME appliance created asymmetric increments in the transversal dimensions of the nose, maxilla, and upper arch in the short term. Asymmetric expansion therapy for subjects with unilateral maxillary deficiency may provide satisfactory outcomes in adolescents, with the exception of mandibular arch expansion. The triangular pattern of expansion caused clockwise rotation of the mandible and the occlusal plane and produced significant alterations in the vertical facial dimensions, whereas it created no displacement in maxilla in the sagittal plane.Öğe Bacteremia after piezocision(MOSBY-ELSEVIER, 2014) Ileri, Zehra; Akin, Mehmet; Erdur, Emire Aybuke; Dagi, Hatice Turk; Findik, DuyguIntroduction: The aim of this study was to investigate the presence of transient bacteremia after a piezocision procedure. Methods: The sample consisted of 30 subjects (24 women, 6 men; mean age, 19.6 +/- 0.7 years; range, 18.1-22.4 years) with the American Society of Anesthesiologists' physical status I. All patients had Class I skeletal and dental relationships and had fixed orthodontic treatment with the Damon system. The piezocision surgery was performed 1 week after the placement of the orthodontic appliances in all patients. Two 20-mL venous blood samples were collected before and 30 to 60 seconds after the first microincision using an aseptic technique. The samples were inoculated into BACTEC Plus aerobic and anaerobic blood culture bottles and were assessed in the BACTEC blood culture analyzer (Becton Dickinson Diagnostic Instrument Systems, Sparks, Md). The results were analyzed statistically using the McNemar test, with P = 0.05 indicating statistical significance. Results: No significant difference between the preoperative and postoperative samples was determined with respect to transient bacteremia (P < 0.250). No bacteremia was detected in the pretreatment samples, although Gemella sanguinis, Streptococcus pluranimalium, and Streptococcus mitis/oralis were detected in 3 postoperative blood samples. Conclusions: The piezocision procedure might be related to transitory bacteremia. Hence, orthodontists should consider the possibility of bacterial endocarditis in at-risk patients when piezocision is part of the treatment plan.Öğe Can demineralized enamel surfaces be bonded safely?(TAYLOR & FRANCIS LTD, 2014) Akin, Mehmet; Baka, Zeliha Muge; Ileri, Zehra; Basciftci, Faruk AyhanObjective. To evaluate and compare the effects of enamel demineralization, microabrasion therapy and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) application on the shear bond strength (SBS) of orthodontic brackets bonded to enamel surfaces and enamel color. Materials and methods. Eighty freshly extracted human maxillary premolar teeth were allocated to one of the four groups. Brackets were bonded directly to non-demineralized enamel surfaces in Group I (control group), directly to the demineralized enamel surfaces in Group II, to demineralized enamel surfaces after CPP-ACP application in Group III and to demineralized enamel surfaces after microabrasion therapy in Group IV. The samples were stored in water for 24 h at 37 degrees C and then underwent thermocycling. The SBS in megapascals (MPa) was determined by a shear test with 0.5 mm/min crosshead speed and failure types were classified with modified adhesive remnant index scores. The data were analyzed with one-way analyses of variance (ANOVA), Tukey and chi-square tests at the alpha = 0.05 level. Results. Significant differences were found among the four groups (F = 21.57, p < 0.01). No significant difference was found between Group I and III (17.12 +/- 2.84 and 15.08 +/- 3.42 MPa, respectively) or between Group III and IV (12.82 +/- 2.64 MPa). The lowest SBS value was determined in Group II (5.88 +/- 2.12 MPa). Enamel demineralization, microabrasion therapy and CPP-ACP application affected enamel color significantly. Conclusion. CPP-ACP application and microabrasion therapy are able to increase the decreased SBS of orthodontic brackets because of enamel demineralization.Öğe Comparison of the outcomes of the lower incisor extraction, premolar extraction and non-extraction treatments(OXFORD UNIV PRESS, 2012) Ileri, Zehra; Basciftci, Faruk Ayhan; Malkoc, Siddik; Ramoglu, Sabri IlhanThe aim of this retrospective study was to evaluate the treatment outcome of lower incisor extraction and to compare it with premolar extraction and non-extraction treatment. The sample consisted of 60 subjects with Class I malocclusion and moderate crowding. The sample was separated into three groups: extraction of a lower incisor group, extraction of a four first premolar group and a non-extraction group. All groups involved 13 girls and 7 boys with a total of 20 patients. The Peer assessment rating (PAR) index was applied to a patient's pre-treatment (T1) and post-treatment (T2) dental casts. T1 dental casts were also used for determining Bolton discrepancy. One-way analysis of variance and post hoc Tukey HSD tests were used for statistical analysis. For the mean percentage PAR score reduction for each group, there was one significant difference seen between the lower incisor extraction group and the non-extraction group (P = 0.047). For the mean anterior ratios, there were significant differences among premolar extraction group versus non-extraction group (P = 0.042) and non-extraction group versus lower incisor extraction group (P = 0.000). For the mean overall ratios, there were significant differences among the premolar extraction group versus lower incisor extraction group (P = 0.048) and the non-extraction group versus lower incisor extraction group (P = 0.001). Orthodontic treatment without extraction has a better treatment outcome than the four-first premolar extraction and single lower incisor extraction protocols in Class I cases with moderate to severe mandibular anterior crowding.Öğe Cone-beam computed tomography evaluation of dentoskeletal changes after asymmetric rapid maxillary expansion(MOSBY-ELSEVIER, 2015) Baka, Zeliha Muge; Akin, Mehmet; Ucar, Faruk Izzet; Ileri, ZehraIntroduction: The aims of this study were to quantitatively evaluate the changes in arch widths and buccolingual inclinations of the posterior teeth after asymmetric rapid maxillary expansion (ARME) and to compare the measurements between the crossbite and the noncrossbite sides with cone-beam computed tomography (CBCT). Methods: From our clinic archives, we selected the CBCT records of 30 patients with unilateral skeletal crossbite (13 boys, 14.2 +/- 1.3 years old; 17 girls, 13.8 +/- 1.3 years old) who underwent ARME treatment. A modified acrylic bonded rapid maxillary expansion appliance including an occlusal locking mechanism was used in all patients. CBCT records had been taken before ARME treatment and after a 3-month retention period. Fourteen angular and 80 linear measurements were taken for the maxilla and the mandible. Frontally clipped CBCT images were used for the evaluation. Paired sample and independent sample t tests were used for statistical comparisons. Results: Comparisons of the before-treatment and after-retention measurements showed that the arch widths and buccolingual inclinations of the posterior teeth increased significantly on the crossbite side of the maxilla and on the noncrossbite side of the mandible (P < 0.05). Comparison of the 2 sides showed statistically significant differences in both the maxilla and the mandible (P < 0.05). Conclusions: After ARME treatment, the crossbite side of the maxilla and the noncrossbite side of the mandible were more affected than were the opposite sides.Öğe Effect of menstrual cycle on orthodontic pain perception A controlled clinical trial(URBAN & VOGEL, 2016) Ileri, Zehra; Baka, Zeliha Muge; Akin, Mehmet; Apiliogullari, Seza; Basciftci, Faruk AyhanThe aim of this prospective, single-center, controlled clinical trial was to evaluate the effects of menstrual cycle phases on orthodontic pain perception. A total of 48 women between 16 and 20 years old with regular menstrual periods who were scheduled to undergo extraction of two upper first premolars for orthodontic treatment were enrolled in this study. Laceback ligatures were used to move canines distally. After activating the laceback ligatures, each patient completed a questionnaire in order to assess pain and quality of life. Pain perception was recorded by patients on a visual analogue scale (VAS) and a verbal rating scale-4 (VRS) immediately after activation (T1) and 24 h after activation (T2). During the appointment, each patient's menstrual-cycle phase (follicular or luteal) was determined by asking some questions about her cycle. For statistical analysis of data, the Mann-Whitney U, independent t test, and Wilcoxon tests were applied. Mean orthodontic pain score was 1.96 +/- 0.80 and 47.08 +/- 21.68 in the follicular phase, 1.92 +/- 0.82 and 46.25 +/- 18.92 in the luteal phase at T1 using the VRS and VAS, respectively. Orthodontic pain scores were worse in those patients in the luteal phase than those in the follicular phase (p < 0.05) in terms of both VRS (p = 0.025) and VAS (p = 0.046). No significant difference between pain scores at T1 and those at T2 in both luteal and follicular phases (p > 0.05) were observed. The menstrual phase has an influence on the perception of orthodontic pain which is higher in the luteal phase following the activation of laceback ligatures. In clinical practice, the phases of the menstrual cycle may have a significant role in how women perceive orthodontic pain.Öğe Effects of remineralization procedures on shear bond strengths of brackets bonded to demineralized enamel surfaces with self-etch systems(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2016) Baka, Zeliha Muge; Akin, Mehmet; Ileri, Zehra; Basciftci, Faruk AyhanObjective: To compare the effects of different remineralization procedures on the surface roughness of teeth, shear bond strengths (SBSs), and Adhesive Remnant Index scores of sel-fetching primer (SEP) used to bond orthodontic brackets to previously treated demineralized enamel surfaces. Materials and Methods: A total of 140 extracted human premolar teeth were randomly divided into seven equal groups. Group I was the control group. A demineralization procedure was performed in the other six groups. A remineralization procedure was performed before bonding by using casein phosphopeptide-amorphous calcium phosphate, fluoride, a microabrasion mixture (18% hydrochloric acid-fine pumice), a microabrasion agent, and resin infiltration in groups III to VII. Brackets were bonded using a self-etching primer/ adhesive system. The specimens were tested for SBS. The roughness and morphology of the enamel surfaces were analyzed using profilometer and scanning electron microscopy. Data were analyzed with analysis of variance, Tukey, and G-tests at the alpha = .05 level. Results: Significant differences were found in the SBS values among the seven groups (F = 32.69, P = .003). The lowest SBS value was found in group II (2.62 +/- 1.46 MPa). No significant differences were found between groups I, III, and VII, between groups III and IV, or between groups V and VI. The differences in the roughness values were statistically significant among the groups (P = .002). Conclusions: Remineralization procedures restore the decreased SBS of orthodontic brackets and decrease surface roughness caused by enamel demineralization. SEPs provide clinically acceptable SBS values for bonding orthodontic brackets to previously treated demineralized enamel surfaces.Öğe Eruption of an impacted canine in an adenomatid odontogenic tumor treated with combined orthodontic and surgical therapy(MOSBY-ELSEVIER, 2016) Erdur, Emire Aybuke; Ileri, Zehra; Ugurluoglu, Ceyhan; Cakir, Mustafa; Dolanmaz, DoganAn adenomatoid odontogenic tumor is an uncommon asymptomatic lesion that is often misdiagnosed as a dentigerous cyst. It originates from the odontogenic epithelium. Enucleation and curettage is the usual treatment of choice. Marsupialization may be attempted instead of extraction of the impacted tooth, since it provides an opportunity for tooth eruption. This case report is the first to report on the eruption of an impacted canine in an adenomatoid odontogenic tumor treated with combined orthodontics and marsupialization. The impacted canine erupted uneventfully, with no evidence of recurrence 3 years after the treatment.Öğe Evaluation of Enamel Surface Roughness after Various Finishing Techniques for Debonding of Orthodontic Brackets(AVES PRESS LTD, 2016) Erdur, Emire Aybuke; Akin, Mehmet; Cime, Leyla; Ileri, ZehraObjective: The aim of this study was to evaluate the surface roughness of enamel after debonding with various types of burs. Methods: The buccal surfaces of 20 mandibular incisors for each group of bur were subjected to profilometer analysis, and three parameters of surface irregularity were recorded. After bracket debonding, adhesive remnants were removed by tungsten carbide burs in low-speed, high-speed, and stainbuster settings. The samples were evaluated at pre-treatment (on sound enamel) (T1) and post-treatment (T2) by a profilometer. The specimens were measured twice, and the mean values were recorded. Results: The results were analyzed in intra-group comparisons with paired t-tests and in inter-group comparisons with one-way ANOVA and Tukey's HSD test. All resin removal techniques significantly increased enamel surface roughness (p<0.05). According to one-way ANOVA, there were significant differences in the effect of enamel surface roughness between all methods (p<0.05). The high-speed bur caused the maximum roughness values and the stainbuster bur caused the minimum roughness values in all the parameters (Ra, Rz, and Rq). Conclusion: The three types of burs used for finishing methods revealed significant differences in the enamel surface after debonding. However, the stainbuster bur created smoother surfaces than the other applied methods.Öğe Hybrid Rapid Palatal Expansion With 2 Mini- Screws: A Case Report(2015) Yurttadur, Gizem; Ileri, Zehra; Akin, MehmetA hybrid expander is a newly designed bone-anchored expander consisting of 2 mini-screws and palatal acrylic; it does not coverany teeth. The aim of this case report is to present the treatment of a patient with transversal maxillary deficiency by hybridexpander. An 11.4-year-old female patient came to our clinic complaining about the appearance of her teeth. She had a narrowmaxillary arch, unilateral dental crossbite, anterior dental crowding, and dental Class II canine and molar relationships on bothsides. Two self-tapping mini-screws were placed between the first molar and second premolar on the palate under minimal localanesthesia. After 1 week, this appliance was bonded to the mini-screws with Transbond XT (3M Unitek, Monrovia, CA, USA)resin. The expansion screw was activated twice a day for 1 week and then once a day until the expansion was completed. Afterthe expansion period, the brackets were bonded to the teeth without removing the hybrid expander. Sufficient maxillary expansionhad been achieved without buccal tipping of the posterior teeth, and the midline diastema had closed spontaneously. This newlydesigned hybrid expander was efficient in correcting a transverse maxillary deficiency without any of the side effects found withconventional rapid maxillary expanders. The most important advantage of this appliance is that clinicians can implementexpansion and bonding procedures at the same time. (Turkish J. Orthod. 2015;28:64–70)Öğe Hybrid Rapid Palatal Expansion With 2 Mini-Screws: A Case Report(AVES PRESS LTD, 2015) Yurttadur, Gizem; Ileri, Zehra; Akin, MehmetA hybrid expander is a newly designed bone-anchored expander consisting of 2 mini-screws and palatal acrylic; it does not cover any teeth. The aim of this case report is to present the treatment of a patient with transversal maxillary deficiency by hybrid expander. An 11.4-year-old female patient came to our clinic complaining about the appearance of her teeth. She had a narrow maxillary arch, unilateral dental crossbite, anterior dental crowding, and dental Class II canine and molar relationships on both sides. Two self-tapping mini-screws were placed between the first molar and second premolar on the palate under minimal local anesthesia. After 1 week, this appliance was bonded to the mini-screws with Transbond XT (3M Unitek, Monrovia, CA, USA) resin. The expansion screw was activated twice a day for 1 week and then once a day until the expansion was completed. After the expansion period, the brackets were bonded to the teeth without removing the hybrid expander. Sufficient maxillary expansion had been achieved without buccal tipping of the posterior teeth, and the midline diastema had closed spontaneously. This newly designed hybrid expander was efficient in correcting a transverse maxillary deficiency without any of the side effects found with conventional rapid maxillary expanders. The most important advantage of this appliance is that clinicians can implement expansion and bonding procedures at the same time.Öğe Incidence of white spot lesions among patients treated with self- and conventional ligation systems(SPRINGER HEIDELBERG, 2015) Akin, Mehmet; Tezcan, Mucella; Ileri, Zehra; Ayhan, FarukObjectives The aim of this study was to investigate the incidence of white spot lesions (WSLs) and its relationship with various patient and treatment variables, in patients treated with self-ligation and conventional ligation orthodontic bracket systems. Methods Two-hundred randomly selected patient records (136 female, 64 male) for self-ligation and (108 female, 92 male) for conventional ligation groups were examined to determine WSL development. In the self-ligation group, Da-mon 3MX (Ormco, Glendora, Calif) brackets had been used, and in the conventional ligation group, Equilibrium 2 (Dentaurum, Phorzeim, Germany) had been used. Labial surfaces of 24 teeth in the pre-and post-treatment photographic records were scored using the WSL index. Results The prevalence of patients who developed at least 1 WSL before treatment was 19%, whereas after treatment, it was 49% in the self-ligation and 54% in the conventional ligation groups. Before treatment, the patients had only mild WSL, but after treatment, severe WSL and cavitation were observed in both groups. Bracket type, age, and hygiene care were significantly associated with new WSL development (P=0.008, P=0.004, P=0.013, respectively). Conclusion Bracket type and more importantly, the hygiene care therapy provided appeared to influence the development of new WSLs. Ligation can promote plaque accumulation and thereby new WSL development in conventional bracket systems. Clinical relevance This article investigates the incidence of WSLs in patients treated with self-ligation and conventional ligation. The present study showed that incidence of WSL less in the self-ligation than in the conventional ligation but hygiene care was mostly important factor in developed WSL.Öğe Shear-bond-strength of orthodontic brackets to aged nano-hybrid composite-resin surfaces using different surface preparation(JAPANESE SOC DENTAL MATERIALS DEVICES, 2015) Demirtas, Hatice Kubra; Akin, Mehmet; Ileri, Zehra; Basciftci, Faruk AyhanThe aim of this study was to evaluate the effects of different surface preparation methods on the shear bond strength (SBS) of orthodontic metal brackets to aged nano-hybrid resin composite surfaces in vitro. A total of 100 restorative composite resin discs, 6 mm in diameter and :3 mm thick, were obtained and treated with an ageing procedure. After ageing, the samples were randomly divided as follows according to surface preparation methods: (1)Control, (2)37% phosphoric acid gel, (3)Sandblasting, (4)Diamond bur, (5)Air-flow and 20 central incisor teeth were used for the control etched group. SBS test were applied on bonded metal brackets to all samples. SBS values and residual adhesives were evaluated. Analysis of variance showed a significant difference (p<0.001) between the groups. Sandblasted group had the highest SBS value (12.85 MPa) in experimental groups. The sandblasting surface treatment is recommended as an effective method of bonding orthodontic metal brackets to nano-hybrid composite resin surfaces.
