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Fei X, Li Y, Zhang Q, Tian C, Li Y, Dong Q, Weir MD, Homayounfar N, Oates TW, Imazato S, Dai Q, Xu HHK, Ruan J. Novel pit and fissure sealant with nano-CaF 2 and antibacterial monomer: Fluoride recharge, microleakage, sealing ability and cytotoxicity. Dent Mater J 2024; 43:346-358. [PMID: 38583998 DOI: 10.4012/dmj.2023-166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Conventional resin-based sealants release minimal fluoride ions (F) and lack antibacterial activity. The objectives of this study were to: (1) develop a novel bioactive sealant containing calcium fluoride nanoparticles (nCaF2) and antibacterial dimethylaminohexadecyl methacrylate (DMAHDM), and (2) investigate mechanical performance, F recharge and re-release, microleakage, sealing ability and cytotoxicity. Helioseal F served as commercial control. The initial F release from sealant containing 20% nCaF2 was 25-fold that of Helioseal F. After ion exhaustion and recharge, the F re-release from bioactive sealant did not decrease with increasing number of recharge and re-release cycles. Elastic modulus of new bioactive sealant was 44% higher than Helioseal F. The new sealant had excellent sealing, minimal microleakage, and good cytocompatibility. Hence, the nanostructured sealant had substantial and sustained F release and antibacterial activity, good sealing ability and biocompatibility. The novel bioactive nCaF2 sealant is promising to provide long-term F ions for caries prevention.
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Affiliation(s)
- Xiuzhi Fei
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University
- Center of Oral Public Health, College of Stomatology, Xi'an Jiaotong University
| | - Yuncong Li
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University
- Department of Prosthodontics, College of Stomatology, Xi'an Jiaotong University
| | - Qian Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University
- Center of Oral Public Health, College of Stomatology, Xi'an Jiaotong University
| | - Chunli Tian
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University
- Center of Oral Public Health, College of Stomatology, Xi'an Jiaotong University
| | - Yue Li
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University
- Center of Oral Public Health, College of Stomatology, Xi'an Jiaotong University
| | - Qiannan Dong
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University
- Center of Oral Public Health, College of Stomatology, Xi'an Jiaotong University
| | - Michael D Weir
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry
| | - Negar Homayounfar
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry
| | - Thomas W Oates
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry
| | - Satoshi Imazato
- Department of Dental Biomaterials, Osaka University Graduate School of Dentistry
| | - Quan Dai
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University
| | - Hockin H K Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry
- Center for Stem Cell Biology and Regenerative Medicine, University of Maryland School of Medicine
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine
| | - Jianping Ruan
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University
- Center of Oral Public Health, College of Stomatology, Xi'an Jiaotong University
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Alshehri TD, Kotha SB, Abed FM, Barry MJ, AlAsmari A, Mallineni SK. Effect of the Addition of Varying Concentrations of Silver Nanoparticles on the Fluoride Uptake and Recharge of Glass Ionomer Cement. NANOMATERIALS 2022; 12:nano12121971. [PMID: 35745312 PMCID: PMC9228982 DOI: 10.3390/nano12121971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 02/05/2023]
Abstract
This study aimed to compare the amount of fluoride uptake and the recharge and release characteristics of conventional glass ionomer cement (GIC) without any additives in comparison to conventional glass ionomer cement supplemented with silver nanoparticles (AgNPs) at two concentrations: 0.1% and 0.2% (w/w). A total of 60 specimens were used in this in vitro study. The sample was divided into six groups—including three groups without fluoride charge: Group 1 (conventional GIC), Group 2 (GIC with 0.1% silver nanoparticles), and Group 3 (GIC with 0.2% silver nanoparticles; and three groups with fluoride charge: Group 4 (conventional GIC with fluoride); Group 5 (GIC with 0.1% silver nanoparticles with fluoride); Group 6 (GIC with 0.2% silver nanoparticles with fluoride), where Group 1 is considered the control group and the other five groups are used as the test groups. The amount of fluoride released was measured on days 1, 2, 7, 15, and 30. The comparisons were made between the groups with and without fluoride and among all the groups. A significant difference in the amount of fluoride released was observed between the groups, with the highest amount occurring in Group 1, followed by Group 2; the lowest amount of fluoride released was observed in Group 3 (p < 0.05). The groups with fluoride recharge (Groups 4, 5, and 6) exhibited a higher amount of fluoride release than the groups with no recharge (Groups 1, 2, and 3); however, Group 1 has more fluoride release compared to all other groups on days 1, 2, 7, 15, and 30 (p < 0.05). The amount of released fluoride decreased from day 1 to day 30 in all of the groups in the study. Despite the antimicrobial and anticariogenic benefits of adding silver nanoparticles to GIC, it seems that fluoride release characteristics are significantly affected by the addition of this material. This may force the clinician to a compromise between the antimicrobial benefit of silver nanoparticles and the remineralizing advantage of fluoride.
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Affiliation(s)
- Turki D. Alshehri
- Ministry of Health, Abha Maternity and Children Hospital, Abha 62562, Saudi Arabia;
- Preventive Dentistry Department, Pediatric Dentistry Division, College of Dentistry, Riyadh Elm University (REU), Riyadh 13244, Saudi Arabia; (F.M.A.); (M.J.B.); (A.A.)
| | - Sunil Babu Kotha
- Preventive Dentistry Department, Pediatric Dentistry Division, College of Dentistry, Riyadh Elm University (REU), Riyadh 13244, Saudi Arabia; (F.M.A.); (M.J.B.); (A.A.)
- Department of Pediatric and Preventive Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Medical Sciences (Deemed to be University), Wardha 442004, India
- Correspondence: or (S.B.K.); or (S.K.M.); Tel.: +966-05077-80161 (S.K.M.)
| | - Faisal Mohammed Abed
- Preventive Dentistry Department, Pediatric Dentistry Division, College of Dentistry, Riyadh Elm University (REU), Riyadh 13244, Saudi Arabia; (F.M.A.); (M.J.B.); (A.A.)
- Ministry of Health Specialized Dental Center, King Fahd General Hospital, Madinah 42315, Saudi Arabia
| | - Mohammed J. Barry
- Preventive Dentistry Department, Pediatric Dentistry Division, College of Dentistry, Riyadh Elm University (REU), Riyadh 13244, Saudi Arabia; (F.M.A.); (M.J.B.); (A.A.)
- Ministry of Health, Specialized Dental Center, Ohod Hospital, Madinah 42315, Saudi Arabia
| | - Abdulrahman AlAsmari
- Preventive Dentistry Department, Pediatric Dentistry Division, College of Dentistry, Riyadh Elm University (REU), Riyadh 13244, Saudi Arabia; (F.M.A.); (M.J.B.); (A.A.)
- Ministry of Health, Al Qunfudah Dental Center, Al Qunfudah 28821, Saudi Arabia
| | - Sreekanth Kumar Mallineni
- Department of Preventive Science, College of Dentistry, Majmaah University, Almajmaah 11952, Saudi Arabia
- Center for Transdisciplinary Research (CFTR), Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College, Saveetha University, Chennai 600077, India
- Correspondence: or (S.B.K.); or (S.K.M.); Tel.: +966-05077-80161 (S.K.M.)
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