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open access
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ISSN : 0376-4672
Evaluation of fluoride release, pH and antibacterial activity of alkasite restorative material and glass Ionomer Seung-Eun Lee1, Ji-Myung Bae2, Ji-Young Ra1 1Department of Pediatric Dentistry, College of Dentistry, Wonkwang University 2Department of Dental Biomaterials and the institute of Biomaterials and Implant, College of Dentistry, Wonkwang University Purpose: This study aimed to compare the antibacterial activity, pH, and fluoride release of alkasite restorative material (Cention N) and glass ionomer restorative materials (Fuji IX GP, Fuji II LC). Materials and method: Agar diffusion test was used to determine the antibacterial activity against Streptococcus mutans and Lactobacillus casei. The inhibition zone was measured after 24 hours. The amount of fluoride released was measured on days 1, 3, 7, 14, 21, 28, 42, 56 and 84. The pH was measured after 1, 3, 6, 12, and 24 hours. Results: All restorative materials showed antibacterial activity. Results of the Streptococcus mutans, showed the following sequence: CHX > Fuji IX GP > Fuji II LC > Cention N (p<0.05). The Lactobacillus casei results showed the following sequence: CHX >Fuji II LC > Cention N > Fuji IX GP (p<0.05). All materials showed a continuous fluoride release; Fuji IX GP showed significantly higher fluoride release, compared with Fuji II LC and Cention N. The pH test, results showed the following sequence: Cention N > Fuji IX GP > Fuji II LC. Conclusion: Continuous fluoride release for 3 months and antibacterial activity was observed in Cention N as well as in glass ionomer cements. Cention N showed highest pH among all materials. Further studies are required to evaluate the properties of Cention N in clinical conditions.
Dental implant treatment is no longer a novel and experimental method, instead, it has become one of the primary options for restoring lost teeth. This technique must be carefully considered and applied to patients with disabilities to improve their oral function and quality of life. Despite its benefits, patients with disabilities are often hesitant to undergo oral reconstruction using implants, particularly those with severe disabilities who may face challenges during treatment due to communication difficulties, lack of cooperation, and involuntary movements. These challenges may lead to uncertain treatment outcomes and prognoses. This paper reviews the critical factors to consider when performing oral reconstruction using implants in patients with severe disabili ties. Considering these factors, the uncertainty associated with treatment can be reduced, and the reconstruction using implant prostheses that can be maintained over the long term can be contemplated.
The marginal bone loss (MBL) and survival rates of dental implants in patients with disabilities were compa rable to those reported for patients without disabilities. Despite the viability of implants for disabled patients, socioeconomic issues and general condition of disabled patients prevent them from receiving as many implants as they require in edentulous areas. However, because of the difficulty of adaptation, the use of complete den tures (CD) is not the preferred treatment option for those with disabilities. Consequently, disabled patients can benefit from the convenience and lower cost of an implant surveyed crown retained removable partial denture (IC-RPD). The survival rates and MBL of those implants in IC-RPD have already established the clinical ac ceptability as a treatment option for patients who are not disabled. IC-RPD can be future implant treatment strategies for disabled patients.
As the accessibility of dental treatment for the disabled has improved and the need for oral care has emerged, implant restoration has been adopted as one of the treatment methods for restoring the missing teeth in these patients. However, considering the characteristics of disabled patients and the level of cooperation should be considered. It is necessary to check for medication and consider any systemic diseases that may be affected by invasive surgery. In particular, patients taking antiplatelet, anticoagulant, or osteoporosis drugs, or in a state of organ transplantation, invasive implant surgery should be more cautious. In this article, the considerations for various medical history and characteristics of several types of disability would be discussed.