Animal Experimental Study on Modified Socket-shield Technique with in Vitro Root Preparation

doi:10.13701/j.cnki.kqyxyj.2023.10.007

Abstract

Abstract: Objective: To investigate the feasibility and effectiveness of modified socket-shield technique so as to explore the method to reduce the sensitivity of traditional socket-shield technique by analyzing the cone-bean computed tomography(CBCT)and histological findings. Methods: Six healthy beagle dogs were used in this study. The third premolar (P3) and the fourth premolar (P4) on both sides of the mandible were hemisected in the buccal-lingual direction, and the clinical crown of the distal or mesial root was cut off. The implant bed on the lingual side of the root was prepared. The root fragment was extracted, prepared in vitro, and then replanted in situ. Immediate implantation was performed. After 3 months of submerged healing, the specimens were performed with CBCT observation and histological examination. Results: After 3 months, no complications such as peri-implant inflammation and implant failure were observed. CBCT showed that all implants formed osseointegration. Histology showed that the root fragment had replacement or surface absorption. There was new bone formation between the root fragment and the implant, and the buccal alveolar ridge was well preserved. Conclusion: Under strict control of the time and storage medium of replanted root fragment, the modified socket-shield technique with in vitro preparation is feasible and can reduce the technical sensitivity. However, long-term animal experimental studies and clinical trials are needed.

Key words: socket-shield technique, alveolar bone preservation, surgical procedures, animal study

ZHAN Zhen, ZHANG Lin, ZHANG Fubao, PEI Jing, ZENG Yongfa, HUANG Jiamei, SHI Lianshui. Animal Experimental Study on Modified Socket-shield Technique with in Vitro Root Preparation[J]. Journal of Oral Science Research, 2023, 39(10): 886-891.

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