Scholarlink

<p>Pit and fissure sealants (PFS) are effective in preventing occlusal caries. This study aims to evaluate the shear bond strength (SBS), microleakage, and penetration depth of the newly developed bioactive PFS (Biocoat™) and a fluoride-releasing resin-based PFS (Fissurit FX) under in vitro conditions. A total of 120 sound permanent molars were included. Specimens were assigned to four surface preparation (SF) groups (Acid; Acid + Bond; Sodium hypochlorite (NaOCl) + Acid; NaOCl + Acid + Bond) and two PFS materials subgroups (BioCoat™; Fissurit FX). SBS was evaluated after artificial aging. Microleakage and penetration were evaluated using stereomicroscopic and dye penetration methods. The SF (<i>p</i> = 0.001) and aging (<i>p</i> = 0.018) had significant effects on SBS, whereas no difference was found between materials (<i>p</i> = 0.773). The highest SBS value was obtained with NaOCl + Acid SF (23.14 ± 7.73&#xa0;MPa) and the lowest with NaOCl + Acid + Bond (12.50 ± 2.88&#xa0;MPa). The SBS value before aging was 19.5 ± 6.45&#xa0;MPa, while after aging it was found to be 15.16 ± 7.68&#xa0;MPa. The SF and material type showed no significant effect on microleakage and penetration (<i>p</i> &gt; 0.05). Pretreatment with 5.25% NaOCl before acid etching improved SBS, whereas no statistically significant differences were observed in microleakage or penetration. These findings suggest a potential mechanical advantage under laboratory conditions without indicating overall clinical superiority.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of dıfferent enamel surface preparatıons on shear bond strength, mıcroleakage and penetratıon of a bıoactive pit and fıssure sealant

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月20日

查看全文
  • Canan Bayraktar Nahir,
  • Gülşah Tonga,
  • Necibe Damla Şahin

摘要

Pit and fissure sealants (PFS) are effective in preventing occlusal caries. This study aims to evaluate the shear bond strength (SBS), microleakage, and penetration depth of the newly developed bioactive PFS (Biocoat™) and a fluoride-releasing resin-based PFS (Fissurit FX) under in vitro conditions. A total of 120 sound permanent molars were included. Specimens were assigned to four surface preparation (SF) groups (Acid; Acid + Bond; Sodium hypochlorite (NaOCl) + Acid; NaOCl + Acid + Bond) and two PFS materials subgroups (BioCoat™; Fissurit FX). SBS was evaluated after artificial aging. Microleakage and penetration were evaluated using stereomicroscopic and dye penetration methods. The SF (p = 0.001) and aging (p = 0.018) had significant effects on SBS, whereas no difference was found between materials (p = 0.773). The highest SBS value was obtained with NaOCl + Acid SF (23.14 ± 7.73 MPa) and the lowest with NaOCl + Acid + Bond (12.50 ± 2.88 MPa). The SBS value before aging was 19.5 ± 6.45 MPa, while after aging it was found to be 15.16 ± 7.68 MPa. The SF and material type showed no significant effect on microleakage and penetration (p > 0.05). Pretreatment with 5.25% NaOCl before acid etching improved SBS, whereas no statistically significant differences were observed in microleakage or penetration. These findings suggest a potential mechanical advantage under laboratory conditions without indicating overall clinical superiority.