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目的:通过上颌单侧牙列缺损使用改良“T”型卡腭侧固位修复的临床效果观察,探讨上颌单侧牙列缺损可摘局部义齿修复固位的方法。方法:选择上颌单侧牙列缺损的患者28例,其中16例使用改良“T”型卡,即余留上颌双尖牙和磨牙腭侧分别使用独立“T”型卡双臂进倒凹固位;12例使用常规设计,即余留牙颊侧使用三臂卡或连续卡。经2年的随诊观察,对余留基牙和修复体固位情况以及临床效果进行综合评价。结果:28例上颌单侧牙列缺损患者,经2年的随诊观察,改良设计者有1例出现修复体松动;常规设者有4例出现修复体松动。两者差异有统计学意义(P<0.05)。结论:使用改良腭侧“T”型卡,能较好解决上颌单侧牙列缺损修复中出现的固位困难、稳定性差等问题。
OBJECTIVE: To investigate the clinical effect of modified “T” type card on the palatal side of the unilateral maxillary unilateral dentition defect to investigate the method of repairing and repositioning the removable partial dentures in maxillary unilateral dentition defect. Methods: Twenty-eight patients with unilateral maxillary unilateral dentition defect were selected, of which 16 were improved T-shaped card, that is, the remaining maxillary bicuspid and palatal palate had independent “T” card arms Into the concave position; 12 cases using the conventional design, that is, the remaining buccal use of three-armed card or continuous card. After 2 years of follow-up observation, the residual abutment and prosthesis retention as well as the clinical effect of a comprehensive evaluation. Results: In 28 patients with unilateral maxillary unilateral dentition defect, after 2 years of follow-up observation, one of the modified designers showed loosening of the prosthesis. In the conventional setting, 4 patients had loosening of the prosthesis. The difference was statistically significant (P <0.05). Conclusion: The improved palatal “T” card can solve the problem of poor retention and poor stability in the reconstruction of maxillary unilateral dentition.