FAESA University Center, Vitória, Brazil.
Aarhus University, Department of Dentistry and Oral Health, Aarhus, Denmark.
BMC Oral Health. 2022 Jun 13;22(1):233. doi: 10.1186/s12903-022-02242-x.
Implant installation with conventional drilling can create buccal bone defects in areas of limited ridge thickness. Implant installation with osseodensification may aid in preventing buccal bone defects in these situations. This in vitro pilot study evaluated the impact of osseodensification on the increase in alveolar ridge thickness and the prevention of buccal peri-implant defects.
Ten fresh pig mandibles with limited bone thickness were selected for use in an experimental randomized split mouth pilot study. Two site-preparation protocols were used: conventional drilling with cutting burs (CTL, n = 10) and osseodensification with Densah® burs (OD, n = 10). After implant bed preparation, 20 implants (4.5 × 10 mm) were placed in the prepared sites and the insertion torque was recorded. Clinical and photographic analysis evaluated ridge thickness and the extent (height, width, and area) of bone defects in the buccal and lingual bone walls following implant placement. Three-dimensional measurements were performed using STL files to analyze the increase in buccal ridge thickness following site preparation and implant placement. The height of the buccal bone defect was considered as the primary outcome of this study. Defect width, area, implant insertion torque, and linear buccal ridge increase after implant site preparation and installation were also assessed. Non-parametric evaluations were carried out with the Mann-Whitney test to verify intergroup differences.
There was no statistically significant difference between groups in the baseline ridge thickness. OD presented a significantly higher insertion torque, associated with reduced buccal and lingual bone defect width, in comparison to CTL.
The increase in buccal ridge thickness after site preparation and implant placement was significantly higher in OD compared to CTL. Osseodensification increased the ridge thickness through expansion and reduced buccal bone defects after implant installation.
在牙槽嵴厚度有限的区域，使用传统钻孔方法植入种植体会导致颊侧骨缺损。在这些情况下，使用骨密实化技术植入种植体可能有助于防止颊侧骨缺损。本体外初步研究评估了骨密实化对牙槽嵴厚度增加和预防颊侧种植体周围骨缺损的影响。
选择 10 个具有有限骨厚度的新鲜猪下颌骨进行实验随机分组研究。采用两种备洞方案：使用切割球钻的传统钻孔（CTL，n=10）和使用 Densah®球钻的骨密实化（OD，n=10）。在植入床准备完成后，在准备好的部位植入 20 个种植体（4.5×10 毫米），并记录植入扭矩。临床和影像学分析评估了种植体植入后颊侧和舌侧骨壁的牙槽嵴厚度和骨缺损范围（高度、宽度和面积）。使用 STL 文件进行三维测量，分析备洞和植入种植体后颊侧牙槽嵴厚度的增加。颊侧骨缺损的高度被认为是本研究的主要结果。还评估了骨缺损宽度、面积、种植体植入扭矩以及植入体部位准备和安装后线性颊侧牙槽嵴的增加。采用 Mann-Whitney 检验进行非参数评估，以验证组间差异。
在基线牙槽嵴厚度方面，两组间无统计学差异。与 CTL 相比，OD 组具有更高的植入扭矩，同时颊侧和舌侧骨缺损的宽度更小。
与 CTL 相比，OD 组在植入体部位准备和植入后颊侧牙槽嵴厚度的增加明显更高。骨密实化通过扩张增加了牙槽嵴的厚度，并减少了种植体植入后的颊侧骨缺损。
