HİDROFİLİK KUMLANMIŞ-ASİTLENMİŞ YÜZEYLİ İMPLANTLARIN HİSTOLOJİK VE HİSTOMORFOMETRİK İNCELEMESİ: KOYUN TİBİASINDA DENEYSEL ÇALIŞMA

Yıl 2010, Cilt: 44 Sayı: 3, 141 - 152, 25.03.2011

Jawad Abdel-haq Cüneyt Karabuda Volkan Arısan Zihni Mutlu Mehmet Kürkçü

Öz

Bu çalışmanın amacı, standart kumlanmış-asitlenmiş implantlarla (SLA), modifiye yüzeye sahip implantların (modSLA)
iyileşme dönemindeki osteointegrasyon özelliklerinin hayvanlar üzerinde deneysel olarak karşılaştırılmasıdır. Üç koyunun
tibialarının metafasiyal bölgesine 30 implant yerleştirilmiş, rezonans frekans analizi (RFA) ve geri çevirme tork testi
yapılmıştır. 3 ve 6. haftalarda RFA ölçümleri tekrar edilmiş ve aynı haftalarda non-dekalsifiye kesitler üzerinde
histomorfometrik analizler yapılmıştır. İyileşmenin 6.haftasında implantlara geri çevirme tork testi uygulanmıştır. Sonuçlar
varyans analizi (ANOVA) ve Pearson korelasyon testi kullanarak analiz edilmiştir. Tüm implantlar yüksek primer stabiliteye
ulaşmıştır; yerleşim torku (ITV) değerleri ortalama 36.13±2.47 ve 35.47±2.85 N/cm olarak belirlenmiştir. SLA ve modSLA
implantların RFA değerleri sırasıyla 72.27±3.17 ve 71.60±2.87 olarak bulunmuştur. İyileşmenin 3. haftasında, ortalama
kemik implant kontakt yüzdesi (%80.64±13.89) ve RFA (76.80±1.14) değeri modSLA implantlarda SLA implantlardan daha
yüksek bulunmuştur. Ancak iyileşmenin 6.haftasından geri çevirme tork testi değerleri açısından SLA (115.2±4.14) ve
modSLA (117.0±4.47N/cm) implantlar arasında anlamlı bir fark bulunamamıştır (p=0.55). İncelenen parametreler arasında
istatistiksel anlamlı korelasyon bulunamamıştır. Bu pilot çalışmanın verileri ışığında, modSLA implantların SLA implantlara
göre erken iyileşme döneminde daha yüksek kemik temasına ve stabiliteye sahip olduğu söylenebilir.

Anahtar Kelimeler

Diş implantı, deneysel çalışma, koyun, histoloji, rezonans frekans analizi, geri çevirme tork testi

Kaynakça

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