Department of Prosthodontics, School and Hospital of Stomatology, Jilin University, 1500 Qinghua Road, Chaoyang District, Changchun, 130012, Jilin, China.
Department of Prosthodontics, Hospital of Stomatology, Jilin University, 1500 Qinghua Road, Chaoyang District, Changchun, 130012, Jilin, China.
Lasers Med Sci. 2023 Jan 3;38(1):32. doi: 10.1007/s10103-022-03699-6.
At present, lasers are increasingly used in the oral clinical field, and research and applications in dental hard tissue treatment are also increasing. The effect of laser etching dentin on the bonding strength of composite resin reported in the literature is still inconclusive. The purpose of this review was to evaluate whether laser etching can improve the immediate and long-term bonding strength of dentin and investigate the effect of different types of adhesives on the bonding strength of dentin. Two reviewers performed a literature search up from January 2012 to November 2021 in four databases: MEDLINE (PubMed), Web of Science, EMBASE, and the Cochrane Library. A total of 25 studies were included in the meta-analysis. The Cochrane Collaboration Bias Risk Assessment tool was used to evaluate the quality of the included literature, and an analysis was carried out using Review Manager Software version 5.3. The aging bond strength of dentin after erbium (Er): yttrium aluminum garnet (YAG) laser treatment was significantly lower than that of dentin in the bur group (P < 0.00001). At the same time, the bond strength of dentin immediately and aging after (Er), chromium-doped (Cr): yttrium scandium gallium garnet (YSGG) laser treatment was lower than that of dentin in the bur group (P < 0.05). There was no significant difference in the immediate and aging bonding strength among samples in the Er: YAG laser, Er, Cr: YSGG laser, and blank control groups (no laser or bur). The aging bond strength of samples after neodymium-doped (Nd): YAG laser treatment was higher than that of samples in the blank control group (P < 0.05); in addition, the performance of self-etching adhesive was slightly better than that of acid etching adhesive. Regardless of the applied surface treatment and the adhesive employed, dentin after aging showed significant bond degradation (P < 0.05). There was high heterogeneity of bond strength between different groups, and the small number of studies and the contradictory results may be the main reasons for this outcome.
目前，激光在口腔临床领域的应用越来越广泛，在牙体硬组织治疗方面的研究和应用也在增加。激光蚀刻牙本质对复合树脂粘结强度的影响，文献报道结果仍不一致。本文旨在评估激光蚀刻是否能提高牙本质的即刻和长期粘结强度，并探讨不同类型粘结剂对牙本质粘结强度的影响。两位评价者从 2012 年 1 月至 2021 年 11 月在 4 个数据库（MEDLINE（PubMed）、Web of Science、EMBASE 和 Cochrane Library）中进行了文献检索。共有 25 项研究纳入荟萃分析。使用 Cochrane 协作偏倚风险评估工具评价纳入文献的质量，并使用 Review Manager Software 版本 5.3 进行分析。铒（Er）：石榴石（YAG）激光处理后的牙本质老化粘结强度明显低于车针组（P < 0.00001）。同时，（Er），铬掺杂（Cr）：钇钪镓石榴石（YSGG）激光处理后牙本质的即刻和老化粘结强度均低于车针组（P < 0.05）。Er：YAG 激光、Er、Cr：YSGG 激光和空白对照组（无激光或车针）的牙本质样本即刻和老化粘结强度无显著差异。钕（Nd）：YAG 激光处理后的牙本质样本的老化粘结强度高于空白对照组（P < 0.05）；此外，自酸蚀粘结剂的性能略优于酸蚀粘结剂。无论应用的表面处理和粘结剂如何，老化后的牙本质粘结强度均有明显下降（P < 0.05）。不同组间粘结强度存在高度异质性，研究数量少和结果相互矛盾可能是造成这种结果的主要原因。
