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首页> 外文期刊>The International journal of oral & maxillofacial implants >Gingival margin changes in maxillary anterior sites after single immediate implant placement and provisionalization: a 5-year retrospective study of 47 patients.
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Gingival margin changes in maxillary anterior sites after single immediate implant placement and provisionalization: a 5-year retrospective study of 47 patients.

机译：单个即刻种植体植入和临时固定后，上颌前牙龈边缘改变：一项对47位患者的5年回顾性研究。

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摘要

To evaluate gingival margin changes in the esthetic zone after immediate implant placement and provisionalization over 5 years with a custom anatomic provisional abutment.Single maxillary incisor immediate implant placement and provisionalization procedures, completed and followed between February 2006 and August 2006, were analyzed retrospectively. During clinical recalls at 3 months, 1 year, and 5 years, changes in gingival margins were recorded with clinical photographs and recorded in millimeters.Forty-seven patients each received a single implant (19 central incisors, 28 lateral incisors) and were followed for 5 years. Implants and restorations had a 100% survival rate during the study. The mean gingival margin changes (recession) were 0.17 mm at the time of definitive restoration, 0.27 mm at 3 months, 0.30 mm at 1 year, and 0.30 mm at 5 years. After 5 years, 24 of the 47 implant crowns had no significant gingival recession. All central incisor sites received 4.3-mm-diameter implants and had a mean change in tooth length of 0.03 mm at 5 years. Lateral incisor sites (n=28) received either a 3.5-mm-diameter implant (n=20) or a 4.3-mm-diameter implant (n=8). Lateral sites with the 3.5-mm implant had a mean change in gingival margin height of 0.08 mm of tooth length at 5 years; lateral sites with a 4.3-mm platform displayed a mean change of 0.82 mm of tooth length.This study suggests that implant diameter, gingival biotype, surgical technique, and/or the reason for tooth loss can influence the amount of gingival recession occurring over 5 years. Most recession occurred within the first 3 months, between implant placement/provisionalization and definitive restoration. The use of a customized anatomic provisional abutment can reduce the amount and frequency of recession.
机译：为了评估在5年内使用定制的解剖学临时基台即刻植入和临时固定后的美学区域中龈区边缘变化的情况，回顾性分析了2006年2月至2006年8月完成并遵循的单个上颌切牙即刻植入和临时固定程序。在3个月，1年和5年的临床召回期间，通过临床照片记录牙龈切缘的变化并以毫米为单位进行记录.47位患者每人接受单个植入物（19颗中切牙，28颗侧切牙）并随访5年。在研究期间，植入物和修复物的存活率为100％。最终恢复时平均牙龈边缘变化（衰退）为0.17 mm，3个月时为0.27 mm，1年时为0.30 mm，5年时为0.30 mm。 5年后，47个种植体冠中的24个没有明显的牙龈退缩。所有中切牙部位均接受直径为4.3毫米的植入物，并且在5年时平均牙齿长度变化为0.03毫米。外侧切牙部位（n = 28）接受直径为3.5mm的植入物（n = 20）或直径为4.3mm的植入物（n = 8）。 5年时植入3.5毫米植入物的外侧部位的牙龈边缘高度平均变化为牙齿长度的0.08毫米。平台为4.3 mm的侧位显示出牙齿长度的平均变化为0.82 mm，这项研究表明植入物直径，牙龈生物型，手术技术和/或牙齿脱落的原因会影响5岁以上发生的牙龈退缩的数量年份。大多数衰退发生在植入物植入/临时植入和确定的修复之间的前三个月内。使用定制的解剖学临时基台可以减少后退的次数和频率。

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