Beretta Mario, Poli Pier Paolo, Pieriboni Silvia, Tansella Sebastian, Manfredini Mattia, Cicciù Marco, Maiorana Carlo
Department of oral surgery, Fondazione Policlinico Ca' Granda, 20141 Milan, Italy.
School of oral surgery, Fondazione Policlinico Ca' Granda, 20141 Milan, Italy.
Materials (Basel). 2019 Sep 19;12(18):3041. doi: 10.3390/ma12183041.
An optimal aesthetic implant restoration is a combination of a visually pleasing prosthesis and adequate surrounding peri-implant soft tissue architecture. This study describes a novel workflow for one-step formation of the supra-implant emergence profile.
Two randomized groups were selected. Ten control group participants received standard healing screws at the surgical stage. Ten individualized healing abutments were Computer aided Design/Computer aided Manufacturing (CAD/CAM)-fabricated out of polyether ether ketone (PEEK) restoration material in a fully digital workflow and seated at the surgical stage in the test group. The modified healing abutment shape was extracted from a virtual library. The standard triangulation language (STL) files of a premolar and a molar were obtained considering the coronal anatomy up to the cement-enamel junction (CEJ). After a healing period ranging from 1 to 3 months depending on the location of the surgical site, namely, mandible or maxilla, a digital impression was taken. The functional implant prosthodontics score (FIPS) and the numerical rating scale (NRS) of pain were recorded and compared.
The mean FIPS value for the test group was 9.1 ± 0.9 while the control group mean value was 7.1 ± 0.9. In the test group, pain assessment at crown placement presented a mean value of 0.5 ± 0.7. On the contrary, the control group showed a mean value of 5.5 ± 1.6.
Patients in the test group showed higher FIPS values and lower NRS scores during the early phases compared to the control group.
理想的美学种植修复是视觉上令人满意的假体与种植体周围充足的软组织结构的结合。本研究描述了一种用于一步形成种植体上方穿出轮廓的新颖工作流程。
选择两个随机分组。10名对照组参与者在手术阶段接受标准愈合螺钉。10个个性化愈合基台采用聚醚醚酮（PEEK）修复材料通过全数字工作流程进行计算机辅助设计/计算机辅助制造（CAD/CAM）制作，并在手术阶段安装于试验组。改良的愈合基台形状从虚拟库中提取。考虑到直至牙骨质-釉质界（CEJ）的冠部解剖结构，获取了一颗前磨牙和一颗磨牙的标准三角测量语言（STL）文件。根据手术部位（即下颌骨或上颌骨）的位置，经过1至3个月的愈合期后，进行数字化印模。记录并比较功能性种植修复评分（FIPS）和疼痛数字评定量表（NRS）。
试验组的平均FIPS值为9.1±0.9，而对照组的平均值为7.1±0.9。在试验组中，冠修复时的疼痛评估平均值为0.5±0.7。相反，对照组的平均值为5.5±1.6。
与对照组相比，试验组患者在早期阶段的FIPS值更高，NRS评分更低。
