Efficacy Analysis of Tent Nail Technique for Bone Augmentation in Mandibular Posterior Region

doi:10.13701/j.cnki.kqyxyj.2023.10.008

Abstract

Abstract: Objective: To evaluate the clinical effect of tent nail technique on horizontal and vertical bone augmentation in the mandibular posterior region. Methods: A total of 17 sites in 9 patients with alveolar crest width ≤5 mm in the mandibular posterior region were selected. During the operation, 1-2 tent nails were inserted into the bone defect area, absorbable collagen membrane combined with 1∶1 mixture of demineralized bovine bone (DBBM) and autologous bone were used. Imaging and biological complications were examined at 6 months after operation. The CBCT data of the patients before surgery, on the day of surgery, and 6 months after surgery were collected and imported into Mimicis software for fitting and matching, respectively. The changes of bone height and bone width on the day of surgery and 6 months after surgery were measured. Results: The initial mean bone width of 9 subjects was (4.04±0.65) mm, the mean bone height was (13.64±2.91) mm. The bone width and height on the postoperative day were (12.21±1.24) mm and (16.95±2.26) mm. After 6 months, the bone width became (9.13±2.27) mm, and the bone height became (15.49±2.21) mm. The bone width increased by (5.09±2.03) mm and the bone height increased by (1.84±2.25) mm at 6 months after surgery compared with the preoperative values. During 6 months of bone healing, the absorption of bone width and height was (3.08±1.41) mm and (1.46±0.57) mm. Conclusion: The present study showed that tent nails played a significant role in spatial maintenance during bone healing, and the application of tent nails combined with GBR (1∶1 mixture of DBBM and autogenous bone) for bone augmentation in the severely atrophied mandibular posterior region achieved good clinical results.

Key words: tent nail technology, bone augmentation in the posterior mandibular region, DBBM and autologous bone were mixed 1∶1

KONG Dejing, JIANG Zhaoxia, HAN Wenli, QU Zhe. Efficacy Analysis of Tent Nail Technique for Bone Augmentation in Mandibular Posterior Region[J]. Journal of Oral Science Research, 2023, 39(10): 892-897.

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