3D analysis of soft tissue dimensional changes after dental implant placement with butt-joint vs. conical connection: a 12-month randomized control trial.
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引用次数: 0
Abstract
Purpose: to quantify the soft tissue dimensional changes after single-gap implant placement, during healing abutment and crown delivery phase for butt-joint and conical implant-abutment connection type.
Methods: forty patients were enrolled in the study and received randomly allocated implants with butt-joint and conical implant-abutment connection type. A standard healing abutment was placed after 6 months for two weeks. The definitive screw retained full-ceramic crowns were manufactured in a digital workflow. The soft tissue profile was digitized using IOS on following stages: pre-op, immediately, two, 7 and 14 days post-op, pre-exposure, immediately after exposure, two weeks after exposure (pre-delivery), immediately after crown delivery, 6 and 12 months after delivery. The intraoral scans were matched in the metrology software (Geomagic Control X). The mean maximum and mean average differences in mm were gathered to assess the soft tissues change. Various anamnesis parameters have been taken into account.
Results: the conical connection implant system exhibited more soft tissue gain and less recession, compared to the butt-joint connection type within the 12 months follow-up period. A higher loss of soft tissue was observed in the distal papilla than in the mesial one.
Conclusions: the implant-abutment connection type may influence the reaction of peri-implant soft tissue within the 12 months follow-up period.
目的：量化对接型和锥形种植体-基台连接型在单间隙种植体放置后、愈合基台和冠交付阶段软组织尺寸的变化。方法：选取40例患者，随机分配种植体，采用对接型和锥形种植体-基台连接型。6个月后放置标准愈合基台2周。最终螺钉保留全陶瓷冠是在数字化工作流程中制造的。应用IOS对术前、即刻、术后2天、7天和14天、暴露前、暴露后立即、暴露后2周（分娩前）、冠娩出后立即、分娩后6个月和12个月的软组织剖面进行数字化。口腔内扫描在测量软件（Geomagic Control X）中进行匹配。收集mm的平均最大值和平均差异来评估软组织变化。考虑了各种记忆参数。结果：在12个月的随访期内，与对接种植体相比，锥形连接种植体系统的软组织增加更多，后退更少。远端乳头的软组织损失高于中端乳头。结论：在12个月的随访期内，种植体-基台连接方式可能影响种植体周围软组织的反应。
期刊介绍：
The International Journal of Implant Dentistry is a peer-reviewed open access journal published under the SpringerOpen brand. The journal is dedicated to promoting the exchange and discussion of all research areas relevant to implant dentistry in the form of systematic literature or invited reviews, prospective and retrospective clinical studies, clinical case reports, basic laboratory and animal research, and articles on material research and engineering.
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