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Updated: Feb 14, 2026
06:06
Adjunctive Diode Laser Therapy and Probiotic Lactobacillus Therapy in the Treatment of Periodontitis and Peri-Implant Disease
Published on: May 9, 2022
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Dual-Strategy Design of Heterojunction-Enhanced Piezoelectric Hydrogels for Periodontitis Treatment
Qiangqiang Zhou1,2, Shaojun Fang3, Changyi Li1,2
1Department of Endodontics, Shanghai Stomatological Hospital and School of Stomatology, Fudan University, Shanghai, China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|February 13, 2026
Summary
This study presents a novel piezoelectric hydrogel that uses ZnO/ZnS heterojunctions and dual salts to promote bone repair. The material effectively enhances osteogenic differentiation and immune remodeling for periodontitis treatment.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Nanotechnology
Background:
- Periodontitis is a chronic inflammatory disease causing alveolar bone loss.
- Bioelectrical modulation shows potential for bone repair but faces challenges in coordinating electrical signaling, immunoregulation, and osteogenesis in inflamed tissues.
Purpose of the Study:
- To develop a multifunctional piezoelectric hydrogel system for enhanced bone regeneration in periodontitis.
- To combine heterojunction enhancement with dual-salt synergy for improved bioelectrical properties and bioactivity.
Main Methods:
- In situ construction of ZnO/ZnS heterojunctions within a polyvinyl alcohol (PVA) multinetwork.
- Integration of magnesium chloride (MgCl2) and trisodium citrate (Na3Ct) for ionic conductivity and bioactivity.
- Evaluation of hydrogel properties, in vitro cell responses (hPDLSCs, macrophages), and in vivo efficacy in a rat periodontitis model.
Main Results:
- The composite hydrogel exhibited low impedance, high ionic conductivity, and stable voltage generation under ultrasound activation.
- In vitro studies showed enhanced osteogenic differentiation of hPDLSCs and M2 macrophage polarization.
- In vivo experiments demonstrated restored alveolar bone architecture, reduced osteoclast activity, and M1/M2 ratio rebalancing in a rat periodontitis model.
Conclusions:
- The piezoelectric hydrogel, enhanced by heterojunctions and dual-salt synergy, offers a promising platform for immunologically instructive regeneration of inflamed bone defects.
- This approach effectively addresses the challenges of coordinating electrical signaling, immunoregulation, and osteogenesis for periodontitis treatment.
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