Schnutenhaus Sigmar, Martin Thomas, Dreyhaupt Jens, Rudolph Heike, Luthardt Ralph G
Private practice, Breiter Wasmen 10, D-78247, Hilzingen, Germany.
Department of Prosthetic Dentistry, Center of Dentistry, University of Ulm, Ulm, Germany.
Open Dent J. 2018 May 30;12:389-399. doi: 10.2174/1874210601812010389. eCollection 2018.
Reduction of the soft tissue is an unavoidable consequence of tooth extraction without appropriate measures of Alveolar Ridge Preservation (ARP).
The objective of this study is the volumetric investigation of the dimensional change of the soft tissue post tooth extraction to compare an Alveolar Ridge Preservation (ARP) measure with the insertion of a combination material with a collagen cone to fill the alveolus, combined with a collagen membrane, with untreated extraction alveoli.
In the context of a randomized clinical trial, 31 patients were treated with the combination material directly post tooth extraction in the maxilla (ARP). In 29 further patients, the extraction alveoli were left without further measures (control group).The changes of the soft tissue contour were measured 6 (+/- 1) weeks post extraction. The measurements were performed by superimposing digital models. The groups were compared using the Wilcoxon rank-sum-test.
The premolar subgroup revealed a significant difference of the soft tissue dimension post insertion of a collagen material into the alveolus in comparison to untreated alveoli. In these cases, the mean loss of soft tissue volume after use of the collagen material was significantly lower.
The proposed hypothesis that there is a difference of the soft tissue preservation between alveoli with and without the use of a collagen material can be accepted with restrictions to the premolar region. A statistically significant lower volume reduction of the soft tissue by implantation of the collagen material could be detected with premolars.
在没有适当牙槽嵴保存（ARP）措施的情况下拔牙，软组织减少是不可避免的后果。
本研究的目的是对拔牙后软组织尺寸变化进行体积研究，以比较一种牙槽嵴保存（ARP）措施，即将一种含有胶原锥的复合材料与胶原膜联合用于填充牙槽窝，与未处理的拔牙牙槽窝相比。
在一项随机临床试验中，31例患者在上颌拔牙后立即使用该复合材料进行治疗（ARP组）。另外29例患者的拔牙牙槽窝未采取进一步措施（对照组）。在拔牙后6（±1）周测量软组织轮廓的变化。测量通过叠加数字模型进行。使用Wilcoxon秩和检验对两组进行比较。
与未处理的牙槽窝相比，前磨牙亚组在牙槽窝植入胶原材料后软组织尺寸有显著差异。在这些病例中，使用胶原材料后软组织体积的平均损失显著更低。
关于使用和未使用胶原材料的牙槽窝之间软组织保存存在差异的假设，在前磨牙区域有一定限制的情况下可以被接受。在前磨牙中，可以检测到植入胶原材料后软组织体积减少在统计学上显著更低。
