Açılı İmplant Uygulama Sistemlerinde İmplant Pozisyonu, Diş Tasarımı ve Açının Marjinal Kemik Rezorpsiyonu Üzerine Etkisi

Abstract

All on four sistemi ile; mandibulada mental formenler arası bölgeye, maksillada maksiller sinüsler arası bölgeye anteriorda iki vertikal, sağ ve sol posteriorda açılı birer implant uygulamasını takiben aynı seansta sabit geçici protez uygulanır. Bu çalışmanın amacı All on four cerrahisi sonrasi implant konumu, yiv yapısı ve açılandırmanın marjinal kemik rezorpsiyonuna etkisini tespit etmektir. 17hastaya, iki farklı formda(level, rapid) ,92 adet implant uygulanmıştır. 1 yıllık takiplerinde panoramik radyografiler üzerinden marjinal kemik kayıpları karşılaştırılmıştır. İmplantların tipi, implantların konumu ve çeneler arasındaki marjinal kemik kaybı farkları Mann Whitney U testi ile analiz edilmiş, istatistik anlamlılık düzeyi 0,05 olarak kabul edilmiştir. Total kemik kaybı mandibulada ortalama 0,2994mm(SS=0,80026); maksillada ortalama 0,3992mm(SS=0,43636), açılı implantlarda ortalama 0,4377mm(SS=0,82100); aksiyal implantlarda ortalama 0,2682mm(SS=0,41187), level form implantlarda ortalama 0,3785mm(SS=0,70581); rapid form implantlarda ortalama 0,2789mm(SS=0,46179) olarak ölçülmüştür. Total marjinal kemik kayıpları yönünden açılı implantlar yönünde anlamlı fark bulunmuş; maksilla-mandibula , implant yiv formları açısından değerlendirildiğinde anlamlı fark bulunamamıştır.

Keywords

• All on four
• yiv şekli
• açılı implantlar
• marjinal kemik kaybı
• kemik rezorpsiyonu

The Effect of Implant Position, Thread Design and Tilting on Marginal Bone Resorption in Tilted Implant System

Abstract

The all-on-four system utilizes 2 parallel anterior implants and 2 distally tilted posterior implants between mental foramina on mandible, between maxillar sinuses on maxilla with an immediately loaded temporary fixed prosthesis. Purpose of this study is evaluating the effect of implant position, thread design and tilting on marginal bone resorption after all-on-four surgery. 17 patient recieved 92 implants with 2 different forms(level,rapid). Radiographic assessment of marginal bone level change was performed at 1 year follow-up period. The differences between marginal bone resorption for implant position, thread design and tilting degree were analyzed with the Mann Whitney U test. The value p = 0,05 was considered as the level of significance. Total marginal bone level was, on average, 0,2994mm(SD=0,80026)for mandible, 0,3992mm(SD=0,43636) for maxilla, 0,4377mm(SD=0,82100) for tilted implants, 0,2682mm(SD=0,41187) for axial implants, 0,3785mm(SD=0,70581) for level form implants, 0,2789mm(SD=0,46179) for rapid form implants. Mean bone loss was significantly higher in the tilted implants. There is no significant difference found in marginal bone loss between the maxilla-mandible and different threaded implant forms.

Keywords

• all-on- four
• thread design
• tilted implants
• marginal bone loss
• bone resorption

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