Sagittal split ramus osteotomisinde farklı plaklarla yapılan fiksasyon yöntemlerinin deneysel olarak karşılaştırılması
Küçük Resim Yok
Tarih
2024
Yazarlar
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Yayıncı
İnönü Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Amaç: Sagittal split ramus osteotomisi (SSRO) sonrası relaps beklenen mandibular hareketlerde segmentlerin stabilizasyonu iyi olmalıdır. Bu çalışmanın amacı; mandibulanın büyük ilerletme gerektirdiği durumlarda rekonstrüksiyon plak, çift miniplak ve tek miniplak sistemlerinin stabilitesini karşılaştırmaktır. Materyal ve Metot: Çalışmamızda SSRO yapılan 45 adet koyun hemimandibulasına uygulanan 3 farklı fiksasyon yönteminin stabilitesini karşılaştırdık. Segmentler 7 milimetre (mm) ilerlemiş olacak şekilde fiksasyon işlemi yapılmıştır. 1. grupta; 1 adet 4 delikli miniplak ve 4 adet 2 mm kalınlığında 7 mm uzunluğunda vida ile, 2. grupta; 2 adet 4 delikli miniplak ve 8 adet 2 mm kalınlığında 7 mm uzunluğunda vida ile, 3. grupta; 1 adet 4 delikli rekonstrüksiyon plak ve 4 adet 2.7 mm kalınlığında 7 mm uzunluğunda vida ile fiksasyon işlemini gerçekleştirdik. Denekleri çelik bir aygıt ile servohidrolik test cihazına yerleştirdik. Molar dişler üzerine 10 Newton'dan (N) 200 N'a kadar artan kuvvetler uyguladık. Segmentlerdeki yer değiştirme ve standart sapma (SS) değerleri bilgisayarda kaydedildi. Çalışmadaki değişkenlerin normal dağılıma uygunluğu grafiksel olarak ve Shapiro-Wilks testi ile değerlendirildi. Gruplara göre karşılaştırılmasında Kruskal-Wallis non-parametrik varyans analizine başvurulmuştur. İkili karşılaştırmalarda bonferroni düzeltmesi yapılarak analiz sonuçları verildi. İstatistiksel anlamlılık düzeyi p<0.05 olarak kabul edilmiştir. Bulgular: Tek miniplakta ortalama yer değiştirme miktarı çift miniplak ve rekonstrüksiyon plağa göre uygulanan tüm kuvvetlerde anlamlı derecede daha yüksektir. Çift miniplak ve tek rekonstrüksiyon plak gruplarında ortalama yer değiştirme değerleri benzer saptandı. Sonuç: SSRO sonrası relaps beklenen mandibular hareketlerde; çift miniplak ve tek rekonstrüksiyon plağı yeterli stabiliteyi sağlarken tek miniplak sağlayamaz. Bu çalışmanın sonucunda; rekonstrüksiyon plağı ve çift miniplağın, relaps beklenen mandibular hareketlerde kullanılabileceğini önermekteyiz.
Objective: The stabilization of segments should be good in mandibular movements where relapse is expected after sagittal split ramus osteotomy (SSRO). The aim of this study is to compare the stability of reconstruction plate, double miniplate, and single miniplate systems in cases requiring significant advancement of the mandible. Material and Method: We compared the stability of 3 different fixation methods applied to 45 sheep hemimandibles undergoing SSRO in our study. The fixation procedure was performed with segments advanced by 7 millimeters (mm). In the 1st group; 1 piece of 4-hole miniplate and 4 pieces of screws of 2 mm thickness and 7 mm length, In the 2nd group; 2 pieces of 4-hole miniplates and 8 pieces of screws of 2 mm thickness and 7 mm length, In the 3rd group; 1 piece of 4-hole reconstruction plate and 4 pieces of screws of 2.7 mm thickness and 7 mm length were used for fixation. The subjects were placed in a servo-hydraulic testing machine with a steel device. Forces ranging from 10 Newtons (N) to 200 N were applied to the molars. Displacement and standard deviation (SD) values in the segments were recorded on the computer. The normal distribution of the variables in the study was evaluated graphically and with the Shapiro-Wilks test. Kruskal-Wallis non-parametric variance analysis was used for comparisons between groups. Bonferroni correction was applied for pairwise comparisons, and analysis results were provided. The level of statistical significance was accepted as p <0.05. Results: The mean displacement amount in the single miniplate is significantly higher than the double miniplate and reconstruction plate in all forces applied. Similar displacement values were found in the double miniplate and single reconstruction plate groups. Conclusion: In mandibular movements where relapse is expected after SSRO; while the double miniplate and single reconstruction plate provide sufficient stability, the single miniplate cannot provide it. As a result of this study; it is suggested that the reconstruction plate and double miniplate can be used in mandibular movements where relapse is expected.
Objective: The stabilization of segments should be good in mandibular movements where relapse is expected after sagittal split ramus osteotomy (SSRO). The aim of this study is to compare the stability of reconstruction plate, double miniplate, and single miniplate systems in cases requiring significant advancement of the mandible. Material and Method: We compared the stability of 3 different fixation methods applied to 45 sheep hemimandibles undergoing SSRO in our study. The fixation procedure was performed with segments advanced by 7 millimeters (mm). In the 1st group; 1 piece of 4-hole miniplate and 4 pieces of screws of 2 mm thickness and 7 mm length, In the 2nd group; 2 pieces of 4-hole miniplates and 8 pieces of screws of 2 mm thickness and 7 mm length, In the 3rd group; 1 piece of 4-hole reconstruction plate and 4 pieces of screws of 2.7 mm thickness and 7 mm length were used for fixation. The subjects were placed in a servo-hydraulic testing machine with a steel device. Forces ranging from 10 Newtons (N) to 200 N were applied to the molars. Displacement and standard deviation (SD) values in the segments were recorded on the computer. The normal distribution of the variables in the study was evaluated graphically and with the Shapiro-Wilks test. Kruskal-Wallis non-parametric variance analysis was used for comparisons between groups. Bonferroni correction was applied for pairwise comparisons, and analysis results were provided. The level of statistical significance was accepted as p <0.05. Results: The mean displacement amount in the single miniplate is significantly higher than the double miniplate and reconstruction plate in all forces applied. Similar displacement values were found in the double miniplate and single reconstruction plate groups. Conclusion: In mandibular movements where relapse is expected after SSRO; while the double miniplate and single reconstruction plate provide sufficient stability, the single miniplate cannot provide it. As a result of this study; it is suggested that the reconstruction plate and double miniplate can be used in mandibular movements where relapse is expected.
Açıklama
Anahtar Kelimeler
Diş Hekimliği, Dentistry
