Ehsani Sarah Sadat, Ghasemi Mahmood, Etemadi Ardavan
Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran, Tehran, Iran, Islamic Republic of.
Department of Periodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Tehran, Iran, Islamic Republic of.
Lasers Med Sci. 2024 Dec 31;40(1):3. doi: 10.1007/s10103-024-04274-x.
Reusing healing abutments is common practice among clinicians; however, ensuring complete surface decontamination is crucial to avoid further complications. This study aimed to evaluate the cleaning potential of Er: YAG laser at different frequencies, as an adjunctive step prior to autoclave sterilization. Forty contaminated healing abutments were divided into four groups. Positive control group included mechanical wiping and ultrasonic bath, Er: YAG laser (50 mJ/pulse, 100 µsec, water 30%, air 70%) at 20 Hz, 30 Hz, and 40 Hz with the powers of 1 W, 1.5 W, and 2 W respectively. Three unused healing abutments were used as the negative control group. Samples were stained with phloxine B and then photographed using a light microscope. The proportion of stained and contaminated areas on each healing abutment was then quantified using ImageJ. Statistical analysis showed significant differences in the amount of remaining debris among the groups (P < 0.05). The group treated with the Er: YAG laser at 40 Hz demonstrated the most effective decontamination, with the least residual debris observed across all HA surfaces. Higher laser frequencies correlated with reduced contamination, particularly in the body and top areas of the HAs. The Er: YAG laser, particularly at 50 mJ/pulse and 40 Hz, proved to be an effective method for decontaminating used HAs. This laser treatment may offer a reliable protocol for reusing HAs, enhancing the safety and success of implant therapy.
在临床医生中，重复使用愈合基台是常见的做法；然而，确保表面完全去污对于避免进一步的并发症至关重要。本研究旨在评估不同频率的铒钇铝石榴石（Er:YAG）激光的清洁潜力，作为高压蒸汽灭菌前的辅助步骤。将40个受污染的愈合基台分为四组。阳性对照组包括机械擦拭和超声清洗，Er:YAG激光（50 mJ/脉冲，100微秒，水30%，空气70%）分别以20 Hz、30 Hz和40 Hz的频率，功率分别为1 W、1.5 W和2 W。使用三个未使用的愈合基台作为阴性对照组。样本用焰红B染色，然后用光学显微镜拍照。然后使用ImageJ对每个愈合基台上染色和污染区域的比例进行量化。统计分析表明，各组之间残留碎片的数量存在显著差异（P < 0.05）。用40 Hz的Er:YAG激光处理的组显示出最有效的去污效果，在所有愈合基台表面观察到的残留碎片最少。较高的激光频率与减少污染相关，特别是在愈合基台的主体和顶部区域。事实证明，Er:YAG激光，特别是在50 mJ/脉冲和40 Hz时，是一种有效的重复使用愈合基台的去污方法。这种激光治疗可能为重复使用愈合基台提供一种可靠的方案，提高种植治疗的安全性和成功率。
