Division of Oral Surgery and Implantology, Department of Head and Neck, Oral Surgery, and Implantology Unit, Institute of Clinical Dentistry, Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Rome, Italy.
Division of Oral Surgery and Implantology, Department of Head and Neck, Oral Surgery, and Implantology Unit, Institute of Clinical Dentistry, Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Rome, Italy.
Int J Oral Maxillofac Surg. 2023 Oct;52(10):1097-1105. doi: 10.1016/j.ijom.2023.01.019. Epub 2023 Feb 18.
The advantages of immediate implant placement for patients include a reduced number of surgical procedures and a shorter overall treatment time. Disadvantages include a higher risk of aesthetic complications. The aim of this study was to compare xenogeneic collagen matrix (XCM) versus a subepithelial connective tissue graft (SCTG) used for soft tissue augmentation in combination with immediate implant placement without provisionalization. Forty-eight patients requiring a single implant-supported rehabilitation were selected and assigned to one of two surgical procedures: immediate implant with SCTG (SCTG group) or immediate implant with XCM (XCM group). Marginal changes in the peri-implant soft tissue and the facial soft tissue thickness (FSTT) were assessed after 12 months. Secondary outcomes included peri-implant health status, aesthetics, patient satisfaction, and perceived pain. All of the implants placed were successfully osseointegrated, resulting in 1-year survival and success rates of 100%. The patients in the SCTG group had a significantly lower mid-buccal marginal level (MBML) recession (P = 0.021) and a greater increase in FSTT (P < 0.001) than the patients in the XCM group. Using xenogeneic collagen matrix during immediate implant placement significantly increased FSTT from the baseline, leading to good aesthetic and patient satisfaction results. However, the connective tissue graft yielded better MBML and FSTT results.
即刻种植中使用异种胶原基质（XCM）与黏膜下结缔组织移植（SCTG）的比较：不临时修复即刻种植
本研究旨在比较即刻种植中使用异种胶原基质（XCM）与黏膜下结缔组织移植（SCTG）联合应用于即刻种植时软组织增量的效果，且均不进行临时修复。
选择 48 例需行单牙种植体修复的患者，随机分为两组：即刻种植+SCTG（SCTG 组）和即刻种植+XCM（XCM 组）。术后 12 个月，评估种植体周围软组织边缘变化和颊侧软组织厚度（FSTT）。次要结局包括种植体周围组织健康状况、美学效果、患者满意度和疼痛感知。
所有种植体均成功骨整合，1 年成功率和存活率均为 100%。SCTG 组的颊侧龈缘退缩（MBML）显著低于 XCM 组（P=0.021），FSTT 增加显著大于 XCM 组（P<0.001）。即刻种植时使用异种胶原基质可显著增加 FSTT，从而获得良好的美学和患者满意度，但结缔组织移植物在 MBML 和 FSTT 方面的效果更好。
