Effect of Immediate Loading on Edentulous Space Maintenance of Non-free End Single Tooth in Mandibular Posterior Area

doi:10.13701/j.cnki.kqyxyj.2023.04.010

Abstract

Abstract: Objective: To investigate the effect of immediate loading on the three-dimensional space after the loss of non-free end of single tooth in mandibular posterior area. Methods: Forty patients who received single dental implant at the non-free end of the mandibular posterior region were included in the study. The experimental group (n=20) received immediate loading therapy with routine implantation, and the control group (n=20) received conventional loading therapy with routine implantation. The intraoral optical scanning data were collected on the same day and 3 months after surgery, and then the three-dimensional position changes of adjacent teeth and jaw teeth were analyzed by three-dimensional registration and deviation analysis algorithm, and their mean deviation (AVG) and root mean square (RMS) were recorded. Results: The AVG and RMS of mesial and distal changes of the mesial adjacent teeth in the experimental group were (20.83±9.07) μm and 25.66±10.82, respectively, which were smaller than those in the control group. AVG=(106.38±38.41) μm, RMS=118.74±42.18. The AVG and RMS of mesial and distal changes of the distal adjacent teeth in the experimental group were (12.03±8.01) μm and 14.59±8.95, respectively, which were smaller than those in the control group. AVG=(113.63±42.79) μm, RMS=127.39±45.93, and the difference was statistically significant. The AVG and RMS of vertical change of the antagonist teeth in the experimental group were (19.66±8.59) μm and 23.97±9.93, respectively, which were lower than those in the control group. AVG=(61.38±18.29) μm, RMS=70.54±21.42, and the difference was statistically significant. Conclusion: The edentulous space can be effectively maintained by the conventional planning with immediate loading treatment after the loss of the non-free end of the single tooth in the mandibular posterior area.

Key words: immediate loading, tooth movement, digital, deviation analysis, posterior mandibular region

WANG Yuzhuo, LI Gan, LI Xiaofei, WEI Luming, WANG Jing, WANG Penglai. Effect of Immediate Loading on Edentulous Space Maintenance of Non-free End Single Tooth in Mandibular Posterior Area[J]. Journal of Oral Science Research, 2023, 39(4): 336-340.

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