Int J Implant Dent:不同直径种植体的种植体周围炎发生率是否相同?

2020-02-26 不详 网络

本研究旨在评估不同直径的植入物引起的种植体周围炎的进展以及矫正外科清创术的结果。拔除六只狗的下颌前磨牙和第一颗磨牙后的三个月,在其两侧的磨牙区域安装了窄种植体(直径3.3毫米)或标准种植体(3.8毫米和4.1毫米),未埋入缝合。3个月后,通过结扎和斑块积聚诱导种植体周围病变3个月。去除结扎后菌斑继续积累一个月。随后使用浸泡在盐水中并冲洗的纱布对表面进行外科手术机械消毒。5个月后,取活检并准备组织切

本研究旨在评估不同直径的植入物引起的种植体周围炎的进展以及矫正外科清创术的结果。

拔除六只狗的下颌前磨牙和第一颗磨牙后的三个月,在其两侧的磨牙区域安装了窄种植体(直径3.3毫米)或标准种植体(3.8毫米和4.1毫米),未埋入缝合。3个月后,通过结扎和斑块积聚诱导种植体周围病变3个月。去除结扎后菌斑继续积累一个月。随后使用浸泡在盐水中并冲洗的纱布对表面进行外科手术机械消毒。5个月后,取活检并准备组织切片。在治疗时和治疗后5个月,进行X光检查。

结果显示,种植体周围炎诱导后的第四个月,在标准和窄种植体处观察到2.2±1.0mm,在狭窄种植体处观察到3.2±0.4mm。治疗五个月后,标准种植体的平均边缘骨生长为0.5±0.6 mm,而窄种植体的平均边缘骨生长为0.9±0.4(p = 0.249)。垂直和水平骨缺陷部分闭合。在组织学分析中,标准植入物在愈合5个月后的骨整合水平为2.1±0.8 mm,而窄植入物为2.8±0.3 mm(p = 0.116)。

总之,与标准种植体相比,狭窄的种植体表现出诱导的种植体周围炎发展更快的发展趋势。植入物的直径不影响诱导性植入物周围炎的手术治疗结果。

原始出处:

Fabrizio Morelli, Karol Alí Apaza Alccayhuaman, et al., Peri-implantitis at implants with different diameters: a pilot study in dogs. Int J Implant Dent. 2019 Dec; 5: 21. doi: 10.1186/s40729-019-0177-3

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    2020-09-22 xuyu
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    2020-12-05 xuyong536
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    2020-11-18 huangdf
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