1.Strolling through the glorious years of Alveolar Surgery, bravely stepping onto the path of practice and innovation
Yiming WANG ; Yang XUE ; Jihong ZHAO ; Jian PAN ; Duohong ZOU ; Nianhui CUI ; Wei ZHANG ; Qizhang WANG ; Zhizheng LI ; Yuqiong ZHOU ; Kaijin HU
Chinese Journal of Stomatology 2024;59(4):301-311
This article summarizes and organizes relevant publications in journals, along with a review of medical history, systematically summarizing the development process of dental alveolar surgery in China. The initial establishment phase (1935—1952) marked the starting point of Chinese Alveolar Surgery. Despite the impact of wars, it laid the foundation for subsequent research and practice. During the early development phase (1953—1966), the "Chinese Journal of Stomatology" was founded, which promoted the development of Alveolar Surgery. Research focused on tooth extraction methods and complications. Tooth Transplantation and Preprosthetic Surgery gradually began to take off. The stagnant phase (1967—1977) occurred due to the interruption of international exchanges, leading to an almost complete halt in the development of Alveolar Surgery. Entering the rapid catch-up phase (1978—1985), Alveolar Surgery scholars in China began striving to overcome the stagnation of the previous decade. While some progress was made, no significant innovative achievements emerged. In the scientific development phase (1986—2010), clinical research, basic experiments, and paper writing in modern Chinese Alveolar Surgery began to adhere to scientific standards with the rise of experimental medicine. The exploration and innovation stage (2011—2023) is the current development phase, during which Chinese Aveolar Surgery has reached its peak, making substantial progress in technology, clinical practices, and basic research, gradually reaching or even surpassing international advanced levels. Looking back at the development history in China, we can find the wisdom and hard work of the older generation of Alveolar Surgery scholars. However, contemporary challenges and issues, such as standardizing technology, promoting clinical practices, and talent cultivation, need to be addressed by present-day Alveolar Surgery professionals as they forge ahead.
2.A clinical study of the two-stage surgical approach combining coronectomy with microimplant anchorage traction for extraction of impacted mandibular third molars
Fei WANG ; Ziyu YAN ; Xiangliang XU ; Shen LIN ; Wei ZHANG ; Nianhui CUI
Chinese Journal of Stomatology 2024;59(8):791-797
Objective:To establish a two-stage surgical procedure of impacted mandibular third molars (IMTM) extractions assisted by coronectomy and microimplant anchorage traction and to investigate the influencing factors of root movement and the effects of different traction angles on the clinical outcomes.Methods:Fifty-three IMTM in contact with inferior alveolar nerve (IAN) that underwent tooth extraction in the Department of Oral and Maxillofacial Surgery Peking University School of Stomatology from January 2022 to June 2023 were included, with coronectomy and microimplant anchorage implantation in the first stage of the surgery, root traction was achieved with orthodontic elastic and microimplant anchorages by about 5.886 N of force, when the IMTM root was detached from IAN, a second surgery was performed to extract the residual root. The basic information of patients and M3M, data on the microimplant anchorage implantation and traction, imaging measurements, and complications were recorded and analyzed.Results:The movement distance of the residual roots was (1.80±0.92) mm, and the duration of traction was (32.9±7.9) d. Multiple linear regression analysis showed that the residual root movement distance was significantly correlated with age, gender, number of roots, traction angle, and depth of the distal bone defect of the second molar ( P<0.05). The smaller the traction angle, the more significant the movement of the residual roots ( P=0.044). In one case, the patient experienced abnormal sensation in the lower lip 16 days after one IMTM (1.9%, 1/53) traction. Conclusions:The two-stage surgical method of combined coronectomy with rapid traction technique to extract the IMTM allows for rapid movement of the residual root and reduces the risk of IAN injury. The efficiency of root movement can be accelerated by appropriately reducing the traction angle during surgery. The traction effect can be predicted based on indicators such as age, gender, number of roots and depth of distal bone defects of second molar.