METHODS: A total of 12 healthy patients received 12 dental implants placed either in the posterior maxilla or mandible. The study involved the harvesting of 12 CTGs with a minimally invasive single-incision technique, grafted to the vestibular peri-implant soft tissue utilizing the envelope technique, followed by the insertion of 12 screw-retained IPS e.max crowns.
RESULTS: The healing process was uneventful across all areas, and all patients were followed up for a period of 5 years. The evaluation of KMT showed the highest decrease in the first 6 weeks after surgery (5.5 ± 0.79 to 4.59 ± 0.62 mm), then dropped slightly to 4 ± 0.85 mm, after which it maintained at 4 ± 0.36 mm until the 2-year time point. Between the second and third years after surgery, a further decrease of 3.59 ± 0.42 mm was recorded for KMT, which then remained constant until the end of the 5-year research period. The observations regarding KMW were slightly different, with the measurements demonstrating the greatest decrease in first 6 weeks (from 2.5 ± 0.42 to 1.5 ± 0.42 mm), which was maintained until the 1-year time point. Between the first and second years after surgery, the KMW increased to 2 ± 0.60 mm and remained level for the next 3 years, at 2 ± 0.85 mm.
CONCLUSIONS: The current research demonstrated the advantages of using a combination of a minimally invasively harvested CTG and the microsurgical envelope technique for a duration of 5 years.
方法:共有12名健康患者接受了12个放置在上颌骨后部或下颌骨的牙种植体。该研究涉及使用微创单切口技术采集12个CTGs,利用包膜技术移植到前庭种植体周围软组织,然后插入12个螺钉固定的IPSe.max冠。
结果:所有地区的愈合过程都很顺利,所有患者均随访5年。KMT的评估显示在手术后的前6周下降幅度最大(5.5±0.79至4.59±0.62mm),然后稍微下降到4±0.85毫米,之后,它保持在4±0.36毫米,直到2年的时间点。手术后的第二年和第三年之间,KMT进一步减少了3.59±0.42毫米,然后保持不变,直到5年的研究期结束。关于KMW的观察结果略有不同,测量显示在前6周最大的下降(从2.5±0.42到1.5±0.42毫米),一直维持到1年的时间点。手术后的第一年和第二年,KMW增加到2±0.60毫米,并在未来3年内保持水平,在2±0.85毫米。
结论:当前的研究证明了使用微创收获CTG和显微外科包膜技术的组合持续5年的优势。