IN VITRO STUDY OF FRACTAL ANALYSIS OF OSTEOTOMIES PERFORMED WITH DIFFERENT DESIGN IMPLANT DRILLS IN LOW DENSITY BONE BLOCKS

Year 2023, , 160 - 165, 26.06.2023

Ayşegül Öztürk , Volkan Arısan

https://doi.org/10.26650/JARHS2023-1207763

Abstract

Objective: Alternative osteotomy techniques were introduced instead of the traditional drilling procedures of dental implant placement. One of these techniques is bone densification through a special design of drills. To study the effect of densification burs on low bone quality in comparison with conventional drilling procedures, the trabecular bone changes will be determined quantitively using fractal analysis (FA).
Material and Methods: A control group (PKD) with the standard osteotomy burs and a test group (PV) with the osseodensification burs were used. In each group, 10 dental implants (4.2x10mm) were placed. A three dimensional (3D) image was obtained from the blocks on a Micro Computed Tomography (micro-CT) device. Fractal analysis was performed, and the results were analyzed by nonparametric tests (p<0.05).
Results: According to the results, the FA value of apical and lateral areas from the PV group (1.292, 1.251 respectively) were significantly higher than the control group (p<0.01). When apical and lateral FA values of the PV group were compared, the apical values were found to be significantly higher than the lateral ones (p<0.01).
Conclusion: In terms of fractal analysis, the bone densification effect of the burs in the PV group around the implants, compared to the PKD group, apical and lateral values, were found to be higher and have been found to provide better trabecular compression. FA may be useful for preoperative and non-invasive assessment of bone quality at implant sites.

Keywords

Osseodensification, fractal analysis, micro-CT, artificial bone block

Project Number

Grant/Award Number: 36994

DÜŞÜK YOĞUNLUKLU KEMİK BLOKLARINDA FARKLI TASARIMA SAHİP İMPLANT FREZLERİ İLE GERÇEKLEŞTİRİLEN OSTEOTOMİLERİN FRAKTAL ANALİZLERİNİN VİTRO İNCELENMESİ

Abstract

Amaç: Dental implant cerrahisinde; osteotomi bölgelerindeki kemik partiküllerini dışarı çıkarma prensibi ile çalışan geleneksel yaklaşımlara ek olarak; partikülleri osteotomi alanında tutarak yoğunlaştırılmasını sağlayan frezleme teknikleri geliştirilmiştir. Bu çalışma ile, düşük kemik yoğunluğuna sahip yapay bloklar kullanılarak; iki farklı frez tasarımı ile oluşturulan osteotomilerde; trabeküler kemik değişikliklerinin kantitatif olarak belirlenmesinde fraktal analizin (FA) etkinliği araştırılmıştır.
Gereç ve Yöntem: Standart osteotomi frezleri ile bir kontrol grubu (PKD) osseodensifikasyon frezleri ile bir test grubu (PV) oluşturulmuştur. Osteotomiler 2x2x2cm ebatlarındaki yapay kemik bloklarında gerçekleştirilmiştir ve her gruba 10 adet dental implant (4,2x10mm) yerleştirilmiştir. Blokların, Mikro Bilgisayarlı Tomografi (mikro-BT) cihazında elde edilen kesitlerinin mezial ve lateral bölgelerinden ölçümler gerçekleştirilmiş, kutu sayma algoritması ile ImageJ programı kullanılarak FA yapılmıştır. Veriler varyans analizi ile değerlendirilmiştir (p<0,05).
Bulgular: Elde edilen bulgulara göre PV grubunda apikal ve lateral alanlarda FA değerleri (sırasıyla 1,292, 1,251), PKD grubuna göre (1,258, 1,233)istatistiksel olarak anlamlı bulunmuştur (p<0,01). PV grubunun apikal ve lateral FA değerleri karşılaştırıldığında ise apikal değerler laterale göre anlamlı derecede yüksek bulunmuştur (p<0,01).
Sonuçlar: Fraktal analiz değerleri açısından; osseodensifikasyon frezlerininimplant etrafındaki kemik yoğunlaştırma etkisi, geleneksel grubuna göre, hem apikalde hem de lateralde yüksek bulunmuş ve daha etkin trabeküler sıkıştırma sağladığı tespit edilmiştir. FA; implant bölgelerindeki kemik kalitesinin, preoprative ve noninvaziv değerlendirilmesinde, faydalı bir yöntem olarak düşünülmektedir.

Keywords

Osseodensifikasyon, fraktal analiz, mikro-BT, yapay kemik bloğu

Project Number

Grant/Award Number: 36994

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