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Öğe Comparison of the effects of RME and fan-type RME on nasal airway by using acoustic rhinometry(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2010) Sokucu, Oral; Doruk, Cenk; Uysal, Ismail O.Objective: To evaluate and compare the nasal airway changes following rapid maxillary expansion (RME) and fan-type RME using acoustic rhinometry (AR). Materials and Methods: The study sample consisted of three groups. The RME group comprised 15 subjects with maxillary transverse discrepancies and posterior crossbites. The fan-type RME group comprised 15 subjects, who had an anteriorly constricted maxilla with a normal intermolar width. The third group included 15 patients who had an ideal occlusion and received no orthodontic treatment and served as the control group. AR was used to measure nasal volume and the minimal cross-sectional area (MCA) before expansion (T1), after expansion (T2), and 6 months after expansion (T3). Each AR recording was performed with and without the use of a decongestant. Two-way analysis of variance was used to determine differences among the groups and three-way analysis of variance was used for the differences between groups. If evidence of statistically significant differences was found, a Bonferroni test was used. Results: The results showed that nasal volume and MCA were significantly increased with RME and fan-type RME immediately after expansion (P < .05). At the end of retention, nasal volume and MCA values of RME showed significant differences with both expansion fan-type RME and control groups (P < .05). Conclusions: RME and fan-type RME had similar effects on the nasal airway immediately after expansion. The increase in nasal volume and MCA was more stable in the RME group than in the fan-type RME group at the end of the retention period. (Angle Orthod. 2010;80:870-875.)Öğe Does rapid maxillary expansion affect the eruption of upper third molars?(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2008) Sokucu, Oral; Ozturk, Firat; Babacan, Hasan; Bicakci, Ali AltugObjective: To test the hypothesis that there is no difference in the movement of the upper third molars between rapid maxillary expansion (RME) and non-RME patients. Materials and Methods: This study was performed on 30 patients divided into two groups. The study group included 20 patients who had maxillary narrowness and bilateral maxillary third molars and who had undergone RME application. The control group of 10 patients had a bilateral cross-bite, had bilateral maxillary third molars, and did not receive orthodontic treatment. The records included lateral and frontal cephalometric films and maxillary plaster models. In the study group, records were taken before expansion (T1), after expansion (T2), and at the retention period (T3). T2 records were not taken in the control group because this period was too short to observe any changes. Friedman tests were used to observe within groups, and the Mann-Whitney U-test was used to see the differences between groups on films and casts. Results: Frontal films showed that vertical eruption occurred after the retention period in the RME cases. Cephalometric films revealed that the angular eruption occurred immediately after expansion. However, the results were not significant with respect to the control group. Conclusion: The hypothesis was rejected. Rapid maxillary expansion affects maxillary third molar movement during and after the RME procedure. RME may indicate upper third molar eruption, but the final position of third molar was not different compared to the normal growth pattern.Öğe Effect of Chlorhexidine Gluconate, Clearfil Protect Bond, and KTP Laser on Microleakage Under Metal Orthodontic Brackets with Thermocycling(MARY ANN LIEBERT INC, 2010) Kustarci, Alper; Sokucu, OralObjective: The purpose of this study was to evaluate the effects of antimicrobial pretreatments [chlorhexidine gluconate (CHX), Clearfil Protect Bond (CPB), and potassium-titanyl-phosphate (KTP) laser] on microleakage under metal orthodontic brackets. Materials and Methods: Sixty freshly-extracted human premolars were randomly assigned to four equal groups: group 1, 37% phosphoric acid; group 2, 37% phosphoric acid + 2% CHX; group 3, 37% phosphoric acid + KTP laser; and group 4, CPB. The teeth were kept in distilled water for 24 h, and thereafter subjected to 500 thermal cycles. Then specimens were sealed with nail varnish, stained with 0.5% basic fuchsin for 24 h, sectioned, and evaluated under a stereomicroscope. Microleakage was scored with regard to the adhesive-tooth interface and the bracket-adhesive interface at both incisal and gingival margins by the same person. Statistical analysis was accomplished by one-way ANOVA and the Kruskal-Wallis test, with significance set at p = 0.05. Results: Microleakage was observed in all groups. No statistically significant difference was observed among all groups in terms of microleakage when bracket-adhesive and bracket-enamel interface along both gingival and incisal margins was evaluated (p > 0.05). Conclusions: The lowest microleakage scores were observed in the control group. CPB, KTP, and CHX groups did not show significant differences with the control group (p > 0.05), but the mean scores of the CHX group were higher than those of the other two experimental groups.Öğe Effect of fixed appliances on oral malodor(MOSBY-ELSEVIER, 2011) Babacan, Hasan; Sokucu, Oral; Marakoglu, Ismail; Ozdemir, Hakan; Nalcaci, RuhiIntroduction: The objective of this study was to evaluate the effect of fixed appliances on oral malodor. Methods: Forty-one patients participated in this study. They were randomized into 2 groups: treated with fixed orthodontic appliances and untreated controls. Oral malodor measurements and the gingival and plaque indexes were recorded in each group by same periodontist. Measurements were taken from the study group before bonding, 1 week after bonding, and 4 weeks after bonding. The control group's measurements were made at the same time. Results: Oral malodor and the gingival and plaque indexes were significantly increased 1 week after bonding (P < 0.05). Oral malodor was increased at 4 weeks after bonding (P > 0.05). The comparison of the groups showed differences 1 week and 4 weeks after bonding. Conclusions: The oral malodor reached the critical level during fixed orthodontic treatment. Oral malodor could indicate a need to evaluate oral health and remind patients of the importance of maintaining ideal oral hygiene. (Am J Orthod Dentofacial Orthop 2011;139:351-5)Öğe Effects of Debonding on Oral Malodor(Aves Press Ltd, 2009) Sokucu, Oral; Ozdemir, Hakan; Nalcaci, Ruhi; Marakoglu, Ismail; Babacan, HasanThe objective of this study was to evaluate the affect of debonding on oral malodor. This study consists of three groups. The first group (debonding group) included 20 subjects with brackets and would be debonded in a month. The second group ( bracket group) included 20 subjects who still undergone orthodontic treatment with brackets. The last group is a control group who did not receive orthodontic treatment. Oral malodor measurements, Gingival and Plaque Index scores were recorded in each group by same periodontist. Measurements were taken in first study groups before debonding (T1), 1 week after debonding ( T2) and 4 weeks after bonding (T3). At the same time the measurements were applied to the second and control group. Data's were evaluated with three way ANOVA test. Bonferroni test were assessed when significant differences between the measurements were exist. Mann-Whitney U- test was used to compare both groups. Oral malodor, significantly decreased after debonding ( P< 0.05). One month after debonding the parameters were stable on debonding group and bracket group. ( P> 0.05). Control group did not show differences in all measurements. The comparison between groups showed significant differences between groups (P< 0.05). Bonding brackets cause to increase on oral malodor. However, after debonding immediately oral malodor reached to the acceptable scores. Oral malodor could be another indicator to evaluate the oral health as Gingival and Plaque index scores.Öğe Effects of Orthodontic Treatment on Patients' Dental Anxiety and Oral Health Knowledge(Aves Press Ltd, 2009) Ozturk, Firat; Sokucu, Oral; Demirer, Serhat; Nalcaci, Ruhi; Ozdemir, HakanThe aim of this study was to investigate effects of orthodontic treatment on both anxiety and oral health knowledge of orthodontic patients. The study was carried out in 184 patients. Four groups were formed according to the stage of orthodontic treatment. Group 1 consisted of 47 individuals selected from patients who were awaiting orthodontic treatment; groups 2 and 3, comprised 44 and 46 individuals who had been undergoing orthodontic treatment for a period of 1-12 and 12-26 months respectively, and group 4, 47 orthodontically treated individuals. The modified Dental Anxiety Scale was used to measure dental anxiety. Oral health knowledge was assessed using several questions concerning etiology, symptoms and prevention. Chi-squire test was used for statistical assessment. The anxiety level of patients in group 1 was significantly higher than the subjects in group 4. Patients in groups 2, 3 and 4 mostly knew that gum bleeding is a sign of periodontal disease (81.8, 84.7, 80.1 per cent respectively); and this was 63.8 per cent for group 1. Patients in all groups were aware how to prevent, however those who were undergoing or had completed treatment were more informed about symptoms of periodontal disease. Only 19.6 and 52.1 per cent of subjects in group 3 had the knowledge to identify dental plaque and what it can cause respectively; which was the highest ratio among the groups. Orthodontic treatment involves some degree of exposure, consequently creates a positive influence on patients' anxiety and periodontal health knowledge.Öğe Mesial migration effect on root morphology of mandibular third molars(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2007) Bicakci, A. Altug; Sokucu, Oral; Babacan, Hasan; Kosger, H. HuseyinObjective: To test the hypothesis that there is a relationship between forward mandibular third molar migration and root curvature of the mandibular third molars. Materials and Methods: The study is comprised of 64 patients who had a history of unilateral mandibular first molar extraction before 16 years of age with no other missing teeth or prosthetic restorations in the mandible. The extraction space was fully or partly closed. The mean remaining space was 1.1 +/- 0.41 mm. The root angles for the mesial and distal roots of the mandibular third molars were measured on the panoramic radiographs by calculating the differences between the angle formed by the long axis drawn perpendicular to the occlusal plane of the crown of mandibular third molar and the central line of the lower one ninth of the root through the root apex. The differences between the extracted and nonextracted sides for mesial and distal roots were analyzed using a paired sample t-test. Results: Both mesial and distal roots were approximately 8 degrees more vertical on the extraction sides than on the nonextraction sides. The differences were statistically significant. Conclusion: Mesial tooth migration of mandibular third molars reduces the amount of root curvature developing on this tooth.Öğe Metrical and histological investigation of the effects of low-level laser therapy on orthodontic tooth movement(SPRINGER LONDON LTD, 2012) Altan, Burcu Ayse; Sokucu, Oral; Ozkut, Mahmud M.; Inan, SevincThe aim of this study was to evaluate the effects of 820-nm diode laser on osteoclastic and osteoblastic cell proliferation-activity and RANKL/OPG release during orthodontic tooth movement. Thirty-eight albino Wistar rats were used for this experiment. Maxillary incisors of the subjects were moved orthodontically by a helical spring with force of 20 g. An 820-nm Ga-Al-As diode laser with an output power of 100 mW and a fiber probe with spot size of 2 mm in diameter were used for laser treatment and irradiations were performed on 5 points at the distal side of the tooth root on the first, second, and 3rd days of the experiment. Total laser energy of 54 J (100 mW, 3.18 W/cm(2), 1717.2 J/cm(2)) was applied to group II and a total of 15 J (100 mW, 3.18 W/cm(2), 477 J/cm(2)) to group III. The experiment lasted for 8 days. The number of osteoclasts, osteoblasts, inflammatory cells and capillaries, and new bone formation were evaluated histologically. Besides immunohistochemical staining of PCNA, RANKL and OPG were also performed. No statistical difference was found for the amount of tooth movement in between the control and study groups (p > 0.05). The number of osteoclasts, osteoblasts, inflammatory cells, capillary vascularization, and new bone formation were found to be increased significantly in group II (p < 0.05). Immunohistochemical staining findings showed that RANKL immunoreactivity was stronger in group II than in the other groups. As to OPG immunoreactivity, no difference was found between the groups. Immunohistochemical parameters were higher in group III than in group I, while both were lower than group II. On the basis of these findings, low-level laser irradiation accelerates the bone remodeling process by stimulating osteoblastic and osteoclastic cell proliferation and function during orthodontic tooth movement.Öğe The Relationship of Orthodontic Treatment Need with Periodontal Status, Dental Caries, and Sociodemographic Factors(HINDAWI PUBLISHING CORPORATION, 2012) Nalcaci, Ruhi; Demirer, Serhat; Ozturk, Firat; Altan, Burcu A.; Sokucu, Oral; Bostanci, VildanThe aim of this study was to determine the relationship of orthodontic malocclusion with periodontal status, dental caries, and sociodemographic status. Our study population consisted of a sample of 836 school children (384 male and 452 female, aged 1114 years). Four experienced orthodontists and two experienced periodontists performed the clinical examinations. The Treatment Priority Index (TPI), Community Periodontal Index of Treatment Needs (CPITN), decayed, missing, filled teeth (DMFT) scores, and a questionnaire that surveyed socio-demographic status of students were used. Spearman's rank correlation coefficients were used to measure the association between variables. TPI scores showed that 36.4% of the students had normal occlusion, while 41.2% had slight, 15.7% had definite, 4% had severe, and 2.7% had very severe malocclusion. TPI values did not show any significant differences between pupils in different age, gender, socioeconomic status groups, and CPITN scores, whereas there was a significant relationship between TPI and DMFT scores. The orthodontic treatment need was not significantly correlated with CPITN or socio-demographic status; however, the correlation coefficient showed a significant relationship between TPI and DMFT scores.Öğe The role of nickel accumulation and epithelial cell proliferation in orthodontic treatment-induced gingival overgrowth(OXFORD UNIV PRESS, 2007) Gursoy, Ulvi Kahraman; Sokucu, Oral; Uitto, Veli-Jukka; Aydin, Ahmet; Demirer, Serhat; Toker, Hulya; Erdem, Onur; Sayal, AhmetThe aim of this study was to investigate the role of nickel in orthodontic treatment-induced gingival hyperplasia. The nickel concentration in gingival tissues with and without overgrowth, histopathology of gingival overgrowths, and epithelial cell proliferation response to different nickel concentrations were analysed. Ten patients receiving orthodontic therapy (eight females and two males, mean age 15.4 years) were included in the study. Hyperplastic and healthy gingiva samples were collected from the same patients. The amount of nickel in the gingival tissue samples was analysed using the atomic absorption spectrometry technique. The tissues removed from hyperplastic areas during gingivectomy were also used for histological analysis. To analyse the effect of nickel on epithelial cell proliferation, four different nickel concentrations (0.5, 2, 5, and 10 mu g) were incubated with keratinocyte cells for 11 days. Mann-Whitney U-test, analysis of variance, and Tukey's test were used in the statistical analyses. The results did not show any difference in nickel concentration between the study and control gingiva tissue samples, but histological analysis demonstrated an increase in epithelial thickness and a significant increase (P = 0.031, 0.02, 0.02) in epithelial cell proliferation in response to low-dose nickel concentrations, with a toxic response to a higher dose. In the limitations of this study, it is plausible that the effect of a continuing low-dose nickel release to epithelium is the initiating factor of gingival overgrowth induced by orthodontic treatment.Öğe Stability in Dental Changes in RME and SARME: A 2-Year Follow-up(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2009) Sokucu, Oral; Kosger, H. Huseyin; Bicakci, A. Altug; Babacan, HasanObjective: To compare the effects of rapid maxillary expansion (RME) and surgically assisted rapid maxillary expansion (SARME) on dentoalveolar structures following orthodontic treatment, as well as stability at 2-year follow-up. Materials and Methods: Two groups of subjects were used in the study. Group 1 consisted of 14 subjects (mean age, 12.7 +/- 1.4 years) who were treated with RME, and Group 2 consisted of 13 subjects (mean age, 18.5 +/- 2.3 years) who were treated with SARME. In both groups, all cases had a maxillary width deficiency with bilateral crossbites. Maxillary dental casts were available at three different intervals: pretreatment (T1), after orthodontic treatment (T2), and at follow-up recall (T3). Intermolar and interpremolar width, palatal height, and maxillary arch depth and length were assessed from maxillary dental casts. Results: Treatment by RME and SARME produced significant increases in intermolar and interpremolar width and maxillary arch length after expansion (T2) (P < .05). The amount of relapse was not significantly different 2 years after treatment (P > .05). Conclusions: Although age ranges of the patient groups are different, the dentoalveolar responses of RME and SARME were similar after orthodontic treatment. (Angle Orthod. 2009:79;)Öğe The Effects of Nd:YAG Laser on Maxillary Canine Distalization Rate(Aves Press Ltd, 2009) Kocoglu-Altan, Burcu; Sokucu, OralThe aim of this study was to assess the effects of low level radiation of Nd:YAG laser on maxillary canine distalization rate. The study was consisted of 14 (9 girls, 5 boys) upper premolar extraction patients aged 15-19 years. After the extraction of teeth, dental arches were aligned. Afterwards canine distalization was performed by 12 mm closed coil spring on 0.016 '' 0.022 '' ss arch wire with force of 150 grams. The right canines of the patients were included in laser group and the left canines were included in control group. The roots of canines were separated into two parts both on the vestibular and palatinal sides and each part were irradiated for 10 seconds. Laser application was carried out at the first, second, third and seventh day of canine distalization period. The density of the applied energy at each appointment was 40 J/ cm(2). The distalization amounts were defined on dental casts taken just before and at the end of distalization period. Data was analysed on SPSS 10.1 by Mann-Whitney U analysis. Acccording to the statistical analysis, canine distalization rate was higher in the control group. When two groups were compared, the difference between the distalization amounts was not statistically significant (p=.294). Laser biostimulation parameters used in this study did not affect the canine distalization rate significantly. For this purpose further studies using spesific wave lengths with different doses are needed.Öğe The Socio-Demographic Evaluation of Patients that Discontinue Orthodontic Treatment(Aves Press Ltd, 2006) Bicakci, Ali Altug; Sokucu, Oral; Babacan, HasanThis study aims to define the general profile of the patients who were started to treat and then gave up their treatment. In addition we also aim to take the precautions in accordance with the results. To carry out the study, information cards of 42 patients who gave up their treatments between 2001 and 2003 were used. The mean age of girls who gave up the treatment is 14.5 and that of the boys is 12.4. It is seen that there is no statistically significant difference between the ages and gender of the patients (p>0.05). When we looked at the duration of the patients waited for being taken into treatment, there was no difference between the male and female patients (P>0.05)and the average duration was seen to be 9.28 months. 81%of the patients waited for less than one year and 19%of them waited for more than one year. On contrary to the expectations, the duration of waiting for treatment's getting longer has a positive effect, not a negative one. It is easier to accept the negative effects of treatment for the patients who have to wait for a certain amount of time for treatment.Öğe Treatment of Maxillary Canine and Premolar Transposition: Case Report(Aves, 2009) Nalcaci, Ruhi; Sokucu, OralTransposition is a dental anomaly manifested by a positional interchange of 2 adjacent teeth within the same quadrant dental arch. The most frequent tooth transposition seen in the literature is maxillary canine-first premolar INIx4-3.1 transposition. The aim of this study was to present treatment of a 14 year old girl who had transposed maxillary left canine and maxillary left premolar teeth. In this case although the transposed canine and premolar teeth were kept in order, satisfying esthetic and stable results were obtained.
