【摘要】：目的:探討牙槽嵴保存術(shù)對不同牙槽嵴骨缺損患者延遲種植效果的影響。方法:94例行下頜單顆后牙拔除術(shù)患者,根據(jù)牙拔除術(shù)前牙槽嵴骨缺損量不同將患者分為輕度組(n=53)和中重度組(n=41),行拔牙術(shù)后再將輕度組和中重度組分別隨機分為保存術(shù)組和對照組,保存術(shù)組對牙槽窩采取牙槽嵴保存術(shù),對照組對牙槽窩不做處理。結(jié)果:輕度組和中重度組患者術(shù)后6個月保存術(shù)組患者寬度減少量和高度減少量均小于對照組(P0.05);輕度組和中重度組中保存術(shù)組和對照組患者術(shù)后6月時GRL較拔牙前增加,而PD和AL則較拔牙前減少;輕度組種植體直徑4.1mm和4.8mm分別占26.4%和73.6%,而中重度組則分別為46.3%和53.7%,兩組相比差異具有統(tǒng)計學(xué)意義(χ2=4.029,P=0.045);輕度組種植體長度分布與中重度組相比差異具有統(tǒng)計學(xué)意義(χ2=21.207,P=0.000)。結(jié)論:牙槽嵴保存術(shù)可有效減少拔牙術(shù)后植骨區(qū)牙槽嵴骨量損失,有利于延遲種植操作的開展,尤其對患牙拔除前牙槽嵴骨缺損量5mm的患者,效果尤為顯著。
[Abstract]:Objective: to investigate the effect of alveolar ridge preservation on delayed implant implantation in patients with different alveolar ridge defects. Methods: 94 patients with mandibular single posterior tooth extraction were divided into mild group (n = 53) and moderate and severe group (n = 41) according to the amount of alveolar bone defect before extraction. After extraction, the mild group and the moderate and severe group were randomly divided into the preservation group and the control group. The alveolar fossa in the preservation group was preserved by alveolar ridge preservation, while the alveolar fossa was not treated in the control group. Results: 6 months after operation, the width and height of the patients in the mild group and moderate and severe group were lower than those in the control group (P0.05). In the mild group and moderate and severe group, the GRL in the preservation group and the control group increased at 6 months after operation, while the PD and AL decreased as compared with those before extraction. The implant diameter of 4.1mm and 4.8mm were 26.4% and 73.6% in mild group, 46.3% and 53.7% in moderate and severe group, respectively. There was significant difference between the two groups (蠂 2 = 4.029, P = 0.045). The distribution of implant length in mild group was significantly higher than that in moderate and severe group (蠂 2 = 21.207, P < 0.000). Conclusion: the preservation of alveolar ridge can effectively reduce the bone loss of alveolar ridge in the bone graft area after extraction and delay the development of implant operation, especially for the patients with 5mm in the extraction of anterior alveolar ridge.
【作者單位】： 武漢市江漢大學(xué)附屬醫(yī)院口腔科;
【分類號】：R783.6

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本文編號：2438631