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Öğe Association between root resorption incident to orthodontic treatment and treatment factors(Oxford Univ Press, 2013) Çelikoğlu, Mevlüt; Halıcıoğlu, Koray; Çağlaroğlu, MuratÖğe Condylar and ramal vertical asymmetry in adolescent patients with cleft lip and palate evaluated with cone-beam computed tomography(Mosby-Elsevier, 2013) Çelikoğlu, Mevlüt; Halıcıoğlu, Koray; Büyük, Süleyman K.; Şekerci, Ahmet E.; Uçar, Faruk İ.Introduction: The aims of this study were to evaluate condylar and ramal mandibular vertical asymmetry in a patient group affected by unilateral (UCLP) and bilateral (BCLP) cleft lip and palate, and to compare the findings with a well-matched control group with normal occlusion. Methods: The study groups included 20 UCLP patients (12 male, 8 female), 21 BCLP patients (12 male, 9 female), and a control group of 21 subjects with normal occlusion (10 male, 11 female). Measurements of condylar, ramal, and condylar plus ramal heights and asymmetry indexes were examined on cone-beam computed tomography images. One-way analysis of variance was used to determine potential statistical differences among the groups for condylar, ramal, and condylar plus ramal asymmetry index measurements. The post-hoc Tukey HSD test was used to determine individual differences. Results: No investigated group showed a statistically significant sex difference for any asymmetry index (P = 0.05). There was a statistically significant difference between the normal and cleft sides in the ramal height and ramal plus condylar height measurements in the UCLP group (P = 0.004 and P = 0.006, respectively). The Tukey HSD test showed a statistically significant difference between the UCLP and BCLP groups in terms of ramal asymmetry index values (P = 0.018). Conclusions: The ramal height and ramal plus condylar height measurements were significantly lower in the cleft side in the UCLP patients, and there was a statistically significant difference in ramal asymmetry index values between the patients affected by UCLP and BCLP.Öğe Effects of early bilateral mandibular first molar extraction on condylar and ramal vertical asymmetry(Springer Heidelberg, 2013) Halıcıoğlu, Koray; Çelikoğlu, Mevlüt; Çağlaroğlu, Murat; Büyük, Süleyman Kutalmış; Akkaş, İsmailThis study aims to investigate the mandibular vertical asymmetry in a group of adult patients who had early bilateral mandibular first molar extractions. Mandibular asymmetry index measurements (condylar, ramal, and condylar plus ramal) were made on the panoramic radiographs of a study group including 30 subjects (mean age, 18.22 +/- 1.30 years) and a control group of 25 subjects (mean age, 18.24 +/- 1.17 years). Group I comprised the control group patients with no extractions and had excellent class I relationships, no missing teeth, and slight or moderate anterior crowding. Group II included patients with a bilateral mandibular first molar teeth extracted before the age of 12 years. Student's t test was used for the comparison of asymmetry index values between the groups. A paired t test was used to determine possible statistically significant differences between the sides for condylar, ramal, and condylar plus ramal height measurements. No group showed statistically significant side-specific differences for posterior vertical height measurements. Condylar asymmetry index (CAI), ramal asymmetry index, and condylar plus ramal asymmetry index measurements were not statistically different between the groups (p > 0.05). CAI values were significantly high when compared with the 3 % threshold value in the both groups, but comparisons between the groups were not statistically significant. This article investigates the effects of early bilateral mandibular molar teeth extraction that has never been investigated in the literature. The present study showed that the lengths of the condylar, ramal, and condylar plus ramal height were less in the study group than in a well-matched control group of without extraction.Öğe Effects of early unilateral mandibular first molar extraction on condylar and ramal vertical asymmetry(Dental Investigations Society, 2014) Halıcıoğlu, Koray; Çelikoğlu, Mevlüt; Büyük, Süleyman Kutalmış; Şekerci, Ahmet Ercan; Candırlı, CelalObjective: The objective of the following study is to investigate the mandibular vertical asymmetry in a group of patients with early unilateral mandibular first molar extractions. Materials and Methods: Mandibular asymmetry index measurements (condylar, ramal and condylar-plus-ramal) were performed on the panoramic radiographs of a study group including 51 patients (mean age: 18.60 ± 1.11 years) and a control group of 51 patients (mean age: 18.53 ± 1.29 years). Group I included patients with a unilateral mandibular first molar extracted before the age of 12 years. Group II included patients with no extractions and had excellent Class I relationships, no missing teeth and slight or moderate anterior crowding. A paired t-test was used to determine possible statistically significant differences between the sides for the measurements. Student's t-test was used for the comparison of asymmetry index values between the groups and genders. Results: No group showed statistically significant sex-or side-specific differences for posterior vertical height measurements. Condylar asymmetry index and ramal asymmetry index measurements were not statistically different between the groups, while condylar-plus-ramal asymmetry index (CRAI) measurements were statistically different between the groups (P = 0.019). Conclusions: A slight difference for CRAI value was found in patients with early unilateral mandibular first molar extractions. © 2014 Dental Investigations Society.Öğe An evaluation of condylar and ramal vertical asymmetry in adolescents with unilateral and bilateral posterior crossbite using cone beam computed tomography (CBCT)(Australian Soc Orthodontists Inc, 2014) Halıcıoğlu, Koray; Çelikoğlu, Mevlüt; Yavuz, İbrahim; Şekerci, Ahmet Ercan; Büyük, Süleyman KutalmışAims: The primary purpose was to evaluate condylar and ramal vertical asymmetry in adolescent patients displaying unilateral posterior (UCB) and bilateral posterior crossbite (BCB) malocclusions. A secondary aim was to compare the findings with a matched control group exhibiting normal occlusion (CG) using cone beam computed tomography (CBCT). Material and methods: The study groups consisted of (1) 30 patients (Mean age: 14.49 +/- 1.91years) with a UCB, (2) 29 patients (Mean age: 14.57 +/- 1.84 years) with a BCB, and (3) 36 patients (Mean age: 14.24 +/- 2.42 years) as a matched control group (CG). Condylar, ramal, condylar-pluslomal height and index measurements were performed using CBCT images following the method of Hobets et al. A paired t-test was performed for side comparison in each group. One-way ANOVA (Analysis of Variance) was used to determine statistically-significant differences between the groups for asymmetry index measurements and Tukey's HSD test was employed for individual group differences. Results: There was no statistically significant difference in condylar height (CH), ramal height (RH), and condylar plus ramal height (CH + RH) measurements between the right and left sides of the UCB group and CG, except for the RH in the BCB group (p = 0.045). Tukey's HSD test showed that the ramal asymmetry index (RAI) and the condylar plus the ramal asymmetry index (CRAI) were statistically significantly different between the UCB and BCB groups (p = 0.035 and p = 0.015, respectively). Conclusions: Although the condylar asymmetry index (CAI) values were found to be high in the groups of UCB (13.84 +/- 11.33), BCB 19.38 +/- 8.561, and CG (10.58 +/- 9.48), the comparisons amongst the groups were not statistically significant. The asymmetry between the UCB and BCB groups was observed for RAI and CRAI values, rather than CAI values.Öğe KONİK IŞINLI BİLGİSAYARLI TOMOGRAFİ KULLANILARAK ELDE EDİLEN İKİ VE ÜÇ BOYUTLU LATERAL SEFALOMETRİK ANALİZLERİN KARŞILAŞTIRILMASI(2014) Büyük, Süleyman Kutalmış; Halıcıoğlu, Koray; Çelikoğlu, Mevlüt; Şekerci, Ahmet Ercan; Ünal, Tuba; Kılkıs, DoganAmaç: Bu çalışmanın amacı, konik ışınlı bilgisayarlı tomografi (KIBT) kullanılarak elde edilen iki (2D) ve üç boyutlu karşılaştırılmasıdır. Gereç ve yöntem: 25 hastanın (12 erkek ve 13 bayan; ortalama yaş: 25,22 ± 4,92 yıl; yaş dağılımı: 18-35 yıl) 2D ve 3D olarak çizilen lateral sefalometrik görüntüleri bu çalışmanın materyalini oluşturmaktadır. Tüm KIBT görüntüleri KIBT (NewTom 5G, QR Verona, Italy) kullanılarak supin pozisyonunda alınmıştır. DICOM dosyaları SimPlant yazılımı (SimPlant Pro 2011, Materialise, Leuven, Belgium) kullanılarak elde edildi ve tüm ölçümler bu program kullanılarak yapılmıştır. Sefalometrik analizlerin karşılaştırılabilmesi için 8 iskeletsel, 8 dişsel ve 3 yumuşak dokuyu içeren toplam 19 parametre (14 açısal ve 5 boyutsal) ölçülmüştür. Her iki yöntemle belirlenen ölçümler eşleştirilmiş t-testi kullanılarak karşılaştırılmıştır. Ayrıca, Pearson korelasyon katsayıları hesaplanmıştır. Bulgular: 2D ve 3D olarak çizilen lateral sefalometrik filmlerin tekrarlanabilirliği kabul edilebilir sınırlar içinde bulunmuştur. Eşleştirilmiş t testi sonucunda; SN-GoGn (°) (p = 0,011), MP-PP (°) (p = 0,006), Y (°) (p = 0,009) ve IMPA (°) (p = 0,002) açılarında, N-Me (mm) (p = 0,043) ve U1-NA (mm) (p = 0,000) ölçümleri arasında istatistiksel olarak anlamlı farklılık olduğu görülmüştür. Pearson korelasyon katsayısı U1-NA (°) (r = 0,575) ve nasolabial açı (°) (r = 0,641) ve L1-APog (mm) (r = 0,658) mesafesi hariç tüm ölçümlerde yüksek olarak tespit edilmiştir. Sonuç: KIBT görüntüleri kullanılarak elde edilen 2D ve 3D lateral sefalometrik analizler karşılaştırıldığında, Pearson korelasyon hemen hemen tüm ölçümlerde yüksek olmasına rağmen, SN-GoGn (°), MP-PP (°), Y açısı (°) ve N-Me (mm) gibi dik yön ile ilgili değerlerde istatistiksel olarak anlamlı farklılık gözlenmiştir.Öğe Permanent first molar extraction in adolescents and young adults and its effect on the development of third molar(Springer Heidelberg, 2014) Halıcıoğlu, Koray; Toptaş, Orçun; Akkaş, İsmail; Çelikoğlu, MevlütThe aim of the present study was to determine the prevalence of permanent first molar (P1M) extraction among Turkish adolescents and young adult subpopulation, and to investigate the effects of P1M extraction on development of the third molars (3Ms) in the same quadrant. A retrospective study including 2,925 panoramic radiographs (PRs) taken from patients (aged 13-20 years) who were examined to identify cases of had at least one maxillary or mandibular P1Ms extracted was performed. Additionally, 294 PRs with the maxillary or mandibular unilateral loss of a P1M were used to assess the developmental grades of the 3Ms. Statistical analyses were performed by means of parametric tests after performing a Shapiro-Wilks normality test to the data. A total of 945 patients (32.3 %) presented with at least one P1M extraction with no gender difference (P = 0.297). There were more cases of mandibular P1Ms extracted (784 patients, 1,066 teeth) than maxillary P1Ms extracted (441 patients, 549 teeth) (P < 0.001). The development of the 3Ms on the extraction side, in the both maxilla and mandible, was significantly accelerated when compared with the contralateral teeth (P = 0.000, P = 0.000, respectively). No statistically significant differences were found in the differences in the developmental of the 3Ms between the maxilla and mandible (P = 0.718). High prevalence of P1Ms extraction among Turkish adolescents and young adults shows a need for targeted dental actions, including prevention and treatment. The development of the 3Ms on the extraction side, in the both maxilla and mandible, was significantly accelerated. To date, no information about prevalence of P1Ms extraction among Turkish adolescents and young adults is documented. In addition, the present study has a larger population and complementary information about 3Ms development than previous studies.
