Evaluation and Comparison of Root Resorption Resulting from Traditional and Bone-borne Rapid Maxillary Expansion Appliances Using Cone-beam Computed Tomography

Objective: This study aimed to evaluate the resorptions of the roots of the maxillary posterior teeth after traditional rapid maxillary expansion (TRME) therapy and boneborne rapid maxillary expansion (BBRME) appliances and to compare the findings obtained using the two appliances. Materials and Methods: The study enrolled 40 patients treated at the orthodontics clinic. These patients were divided into the TRME group (13.4±1.2 years old, n=20) and BBRME group (13.2±1.3 years old, n=20) according to the appliance used. Cone beam computed tomography images taken before the treatment (T0) and after a 3-month retention period (T1) was transferred to an image-processing software. Volumetric measurements of the teeth were made after the segmentation procedure, and volumetric changes before and after treatments were analysed statistically. Paired-sample t-test was used for the intra-group comparison, and independent sample t-test was used for the inter-group comparison. Results: In both groups, the amount of resorption in all teeth that occurred between T0 and T1, was statistically significant (p

Konik Işınlı Bilgisayarlı Tomografi Kullanılarak Geleneksel ve Kemik Destekli Hızlı Üst Çene Genişletme Yöntemlerinin Kök Rezorpsiyonuna Etkisinin Değerlendirilmesi ve Karşılaştırılması

Amaç: Bu çalışmanın amacı, geleneksel hızlı üst çene genişletme (GHÜÇG) ve kemik destekli hızlı üst çene genişletme (KDHÜÇG) yöntemlerinin arka üst diş köklerinin rezorpsiyonuna etkisini değerlendirmek ve iki cihaz kullanılarak elde edilen bulguları karşılaştırmaktır. Gereç ve Yöntemler: Çalışma ortodonti kliniğinde tedavi gören 40 hasta ile yapılmıştır. Çalışma iki grup halinde tasarlanmıştır. Birinci grup GHÜÇG ile tedavi edilen 20 hastadan (13,4±1,2 yaş), ikinci grup ise KDHÜÇG cihazları ile tedavi edilen 20 hastadan (13,2±1,3 yaş) oluştu. Hastalardan tedavi öncesi (T0) ve 3 aylık tutma (T1) sonrası alınan konik ışınlı bilgisayarlı tomografi kayıtları programa aktarıldı. Segmentasyon işleminden sonra dişlerin hacimsel ölçümleri yapıldı ve tedavi öncesi ve sonrası hacimsel değişimler istatistiksel olarak analiz edildi. Grup içi karşılaştırmada bağımlı örnek t-testi, gruplar arası karşılaştırmada ise bağımsız-örneklem t-testi kullanıldı. Bulgular: Her iki grupta da T0-T1 arasında meydana gelen tüm dişlerde rezorpsiyon miktarı istatistiksel olarak anlamlı bulundu (p

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