Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
Department of Fixed Prosthodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
BMC Oral Health. 2024 Aug 8;24(1):916. doi: 10.1186/s12903-024-04609-8.
The posterior maxilla presents challenges for implant insertion because of the poor bone quality as well as the loss of vertical bone height. Indirect transcrestal sinus lift techniques are advised when a few millimeters of additional height are needed. This study aimed to evaluate the clinical and radiographic outcomes of antral membrane balloon technique versus Densah burs for transcrestal maxillary sinus lifting with simultaneous implant placement.
This randomized clinical trial was conducted on 22 patients received 32 dental implants for replacement of missed maxillary posterior teeth after crestal maxillary sinus lifting. The patients were randomly divided into two groups. Group 1, patients underwent crestal sinus floor elevation with simultaneous implant placement using antral membrane balloon technique. Group 2, patients underwent crestal sinus floor elevation with simultaneous implant placement using Densah burs. Patients were evaluated clinically and radiographically using cone beam computed tomography (CBCT) at regular time intervals immediately, 6 months and 12 months after surgery. All clinical and radiographic parameters were statistically analyzed.
All dental implants were successful for 12 months of follow up. Regarding implant primary stability, there was a statistical significant difference between the study groups in favor of Densah group (P = 0.004), while there was no significant difference after 6 months (P = 0.07). Radiographically, balloon group showed a statistically significant immediate postoperative vertical bone height (P < 0.0001), and significant reduction in vertical bone height after 6 months (P < 0.0001). Densah group showed significant increase in bone density (P ≤ 0.05).
Both techniques demonstrated successful clinical and radiographic outcomes for crestal sinus lift. The antral membrane balloon group demonstrated better immediate postoperative vertical bone gain, while Densah burs had higher implant primary stability and bone density.
This study was registered in Clinical-Trials.gov PRS ( https://register.
gov ) under identification number NCT05922592 on 28/06/2023.
上颌后区由于骨质较差和垂直骨高度丧失，给种植体植入带来挑战。当需要增加几毫米高度时，建议采用间接经牙槽嵴窦底提升技术。本研究旨在评估使用窦内黏膜球囊技术与使用 Densah 磨钻行经牙槽嵴上颌窦底提升同期植入种植体的临床和影像学结果。
这是一项随机临床试验，共纳入 22 名患者，这些患者在经牙槽嵴上颌窦底提升后，共植入 32 颗种植体以替代上颌后牙缺失。患者随机分为两组。第 1 组，患者采用窦内黏膜球囊技术行牙槽嵴窦底提升同期植入种植体。第 2 组，患者采用 Densah 磨钻行牙槽嵴窦底提升同期植入种植体。患者分别于术后即刻、术后 6 个月和 12 个月采用锥形束 CT（CBCT）进行临床和影像学评估。所有临床和影像学参数均进行了统计学分析。
所有种植体在 12 个月的随访中均成功。关于种植体初期稳定性，两组间有统计学差异，Densah 组更好（P=0.004），而在术后 6 个月时无统计学差异（P=0.07）。影像学方面，球囊组术后即刻有统计学显著的垂直骨高度增加（P<0.0001），术后 6 个月时垂直骨高度显著减少（P<0.0001）。Densah 组骨密度有显著增加（P≤0.05）。
两种技术均为经牙槽嵴窦底提升提供了成功的临床和影像学结果。窦内黏膜球囊组术后即刻有更好的垂直骨获得，而 Densah 磨钻组有更高的种植体初期稳定性和骨密度。
本研究于 2023 年 6 月 28 日在 ClinicalTrials.gov PRS（https://register.clinicaltrials.gov）注册，注册号为 NCT05922592。
