Department of Dentistry "Fra G.B. Orsenigo - Ospedale San Pietro F.B.F.", Rome, Italy.
Department of Odontostomatological Sciences - University of Rome "Tor Vergata", Rome, Italy.
J Biol Regul Homeost Agents. 2020 Jan-Feb;34(1 Suppl. 1):71-77. DENTAL SUPPLEMENT.
This article presents a case report of transmucosal implant with a convergent collar (PRAMA) inserted in the anterior maxillary esthetic area. The purpose of this study is to evaluate soft and hard tissue after 12 months. One implant was placed in the esthetic area. The implant was immediately loaded with a screwed provisional prosthesis. After 3 months the definitive screwed prosthesis was inserted. The patient was reassessed 12 months post-implant placement, and during the examination, the soft-tissue texture, color, and amount of keratinized tissue was checked. No statistically significant horizontal dimensional changes of the alveolar ridge were observed between each time-point. Mean soft tissue levels significantly improved between base-line and 12 months. The reduced buccal width of the transmucosal component gives more space to the gingival thickness and promotes stability and give a better seal. The use of transmucosal implant creates a shift of the inflammatory cell infiltrate away from the crestal bone level.
这篇文章报告了一个在前上颌美学区域植入带有会聚领（PRAMA）的黏膜下植入物的病例。本研究的目的是评估 12 个月后的软组织和硬组织情况。在美学区域植入了一个种植体。种植体立即用螺丝固定临时修复体加载。3 个月后插入了最终的螺丝固定修复体。植入后 12 个月对患者进行了重新评估，在检查过程中，检查了软组织质地、颜色和角化组织量。在每个时间点之间，牙槽嵴的水平尺寸没有观察到统计学上的显著变化。平均软组织水平在基线和 12 个月之间显著改善。黏膜下部件的颊侧宽度减小为牙龈厚度提供了更多空间，促进了稳定性并提供了更好的密封。黏膜下植入物的使用可将炎症细胞浸润转移到牙槽嵴骨水平以下。
