In Vitro Biomechanical Evaluation of Modified Plating Techniques for Bilateral Sagittal Split Ramus Osteotomy in Mandibular Advancement
JOURNAL OF CRANIOFACIAL SURGERY, cilt.23, sa.5, ss.1573-1576, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 23 Sayı: 5
- Basım Tarihi: 2012
- Doi Numarası: 10.1097/scs.0b013e31826100ec
- Dergi Adı: JOURNAL OF CRANIOFACIAL SURGERY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1573-1576
- Anahtar Kelimeler: Sagittal split ramus osteotomy, mandibular advancement, biomechanic, three-dimensional test model, RIGID INTERNAL-FIXATION, FOLLOW-UP, SURGERY, STABILITY, STABILIZATION, SCREWS, SYSTEM
- Ondokuz Mayıs Üniversitesi Adresli: Evet
Özet
The aim of this study was to compare the biomechanical properties of modified plate techniques using a newly designed three-dimensional test model after sagittal split ramus osteotomy. Fifteen synthetic polyurethane mandibular replicas were used and divided into 3 groups. Self-tapping 6-mm titanium screws with an outer diameter of 2.0 mm and private designed plates produced by 316-L stainless steel were used in the study. After the osteotomy, the distal part was advanced by 5 mm. The jaw models were placed to the three-dimensional test model designed by the authors, and the Instron Lloyd LRX device was used to apply a double-sided tensile force from the mandible angulus region of each group. Resistance forces that caused a displacement of 1.5 and 3 mm were recorded with the Instron program. The mean (SD) of the 3 groups were calculated using analysis of variance and the Tukey test. The results were compared statistically, with values of P < 0.05 determined as statistically significant. On the basis of the results of the Tukey comparison within the groups, there was a statistically significant difference between groups 1 and 2 and between groups 1 and 3 at both 1.5- and 3-mm displacement (P G 0.05). No significant difference was observed between groups 2 and 3 (P 9 0.05). This test model was able to identify the most appropriate plate type of 3 different modified plate techniques after sagittal split ramus osteotomy.