Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia.
Medicina (Kaunas). 2023 Mar 6;59(3):515. doi: 10.3390/medicina59030515.
The use of desensitizing agents (DA) after tooth preparation to prevent hypersensitivity is well documented in the literature. A fixed dental prosthesis (FDP) should have good retention to be successful. Inadequate retention may result in microleakage, secondary caries, and, eventually, dislodgement of the FDP. The effect of DAs on the retention of FDPs has been widely studied in the literature, but the results are conflicting. Thus, this study aimed to conduct a systematic review to assess the effect of dentine desensitizing agents, used to prevent post-cementation hypersensitivity, on the retention of cemented FDPs. The null hypothesis framed was that there is no effect of dentine desensitizing agents on the retention of cemented FDPs. The focused PICO question was as follows: "Does the application of dentine desensitizing agents (I) affect the retention (O) of cemented fixed dental prosthesis (P) when compared to non-dentine desensitizing groups (C)"? Four electronic databases were systematically searched and, on the basis of the predefined inclusion and exclusion criteria, 23 articles were included in this systematic review. A modified CONSORT scale for in vitro studies was used to assess the quality of the selected studies, as all included studies were in vitro studies. Most of the studies compared the effect of more than one type of DA on retention. The results of the selected studies varied due to differences in the composition of tested dentine DAs and types of luting cements. Within the limitations of this study, it can be concluded that the retention values of FDPs cemented using zinc phosphate cement were reduced with most of the DAs, whereas retention values increased when GIC, resin-modified GIC, and resin cements were used with the majority of DAs. These findings are important, as they can guide dentists in selecting the DA before cementing the crowns with the luting agent of their choice, without compromising the retention of the crowns.
脱敏剂（DA）在牙齿预备后用于预防过敏已在文献中得到充分证实。固定义齿（FDP）应具有良好的固位力才能成功。固位力不足可能导致微渗漏、继发龋，最终导致 FDP 脱落。文献中广泛研究了 DA 对 FDP 固位力的影响，但结果相互矛盾。因此，本研究旨在进行系统评价，评估用于预防粘固后过敏的牙本质脱敏剂对粘固 FDP 固位力的影响。提出的零假设是牙本质脱敏剂对粘固 FDP 的固位力没有影响。关注的 PICO 问题如下：“与非牙本质脱敏组（C）相比，应用牙本质脱敏剂（I）是否会影响粘固固定义齿（P）的保留（O）？”系统搜索了四个电子数据库，根据预先设定的纳入和排除标准，共有 23 篇文章纳入本系统评价。使用改良的 CONSORT 量表评估体外研究的质量，因为所有纳入的研究均为体外研究。大多数研究比较了一种以上 DA 对保留力的影响。由于测试牙本质 DA 的组成和粘固剂类型的差异，所选研究的结果也有所不同。在本研究的限制范围内，可以得出结论，使用大多数 DA 后，使用磷酸锌粘固剂粘固的 FDP 的保留值降低，而当使用玻璃离子复合体、树脂改性玻璃离子复合体和树脂粘固剂时，大多数 DA 的保留值增加。这些发现很重要，因为它们可以指导牙医在选择 DA 之前，根据他们选择的粘固剂来粘固牙冠，而不会影响牙冠的保留力。
