Department of Restorative Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil.
Dental School, Universidade de Pernambuco, Pernambuco, PE, Brazil.
Dent Mater. 2023 Oct;39(10):946-956. doi: 10.1016/j.dental.2023.08.179. Epub 2023 Aug 29.
To evaluate the influence of a glutaraldehyde-based desensitizer (GL) on postoperative sensitivity (POS) in posterior bulk-fill resin composite restorations using an adhesive applied in the self-etch (SE) and etch-and-rinse (ER) strategies; and to assess the clinical performance of the restorations.
Posterior resin composite restorations (n = 228) at least 3 mm deep were inserted in 57 subjects using a split-mouth design. The adhesive was applied with/without prior application of a GL. A resin composite was used for all restorations. Spontaneous POS (risk and intensity), as well as POS caused by stimulation with an air blast and assess the response to horizontal and vertical percussion was assessed using two scales in the baseline and after 7, 14, and 30 days. In addition, some parameters were evaluated using FDI criteria up to 24 months of clinical service.
No significant POS was observed (p > 0.05). A higher absolute risk and intensity of spontaneous POS was observed within 7 days (35.1%), without statistically significant differences among groups. At 24 months 5 restorations were considered clinically unsatisfactory, and 73 restorations showed minor discrepancies in adaptation, with no significant differences between groups (p > 0.05).
A GL agent does not influence POS in posterior restorations with bulk-fill resin composite. It may be considered a dispensable clinical step in the restorative protocol.
评估一种基于戊二醛的脱敏剂（GL）对使用自酸蚀（SE）和酸蚀-冲洗（ER）两种粘结策略的后牙大体积充填型树脂复合材料修复体术后敏感（POS）的影响，并评估修复体的临床性能。
采用分口设计，将至少 3mm 深的后牙树脂复合材料（n=228）插入 57 名受试者的口中。粘结剂在使用前/不使用 GL 进行预处理。所有修复体均使用树脂复合材料。使用两种量表在基线以及 7、14 和 30 天时评估自发性 POS（风险和强度），以及空气喷吹刺激引起的 POS，并评估对水平和垂直叩诊的反应。此外，使用 FDI 标准评估一些参数，直至临床服务 24 个月。
未观察到明显的 POS（p＞0.05）。7 天内观察到更高的自发性 POS 绝对风险和强度（35.1%），但各组之间无统计学差异。24 个月时，5 个修复体被认为临床不满意，73 个修复体在适应性方面存在轻微差异，各组之间无显著差异（p＞0.05）。
GL 制剂不会影响大体积充填型树脂复合材料后牙修复体的 POS。在修复方案中，它可能被认为是一个可有可无的临床步骤。
