Journal of Polymer & Composites Original Research Special issue
A Retrospective Analysis of Resin-Based Polymer Composites and Bioactive Glass-Polymer Hybrids Regarding Secondary Caries and Durability
Abstract
Aim- To compare the 2-year clinical survival and failure modes of a Resin-Based Polymer Composites and BioactiveGlass-Polymer Hybrids in Class I and II posterior restorations. Methods-A total of 550 restorations were placed in adult patients across various private dental practices in India to ensure a diverse clinical demographic. Teeth were randomly assigned and restored with either a hybrid composite (Te-Econom, IvoclarVivadent; n=275) or a Resin-Modified Glass Ionomer Cement (GC Gold Label 2 LC, GC Corp; n=275). Clinical performance was monitored over a 24-month period using Modified USPHS criteria. Statistical analysis of restoration survival was performed using Kaplan-Meier estimators, while the influence of material type on failure risk was determined via Cox regression models (p < 0.05). Results- At 2 years, the overall survival rate was higher for RC (95.6%) compared to RMGIC (91.3%), a difference approaching significance (p=0.054) RMGIC was significantly more prone to mechanical failure (fracture) than RC (4.0% vs. 0.7%; p=0.007). Conversely, RMGIC demonstrated a protective trend against biological failure, with lower incidence of secondary caries (1.5%) compared to RC (2.5%), though this did not reach statistical significance (p=0.306). Conclusion- While RMGIC demonstrated potential bioactive benefits in reducing secondary caries risk, its clinical longevity in load-bearing posterior teeth is compromised by lower fracture resistance. Conventional resin composite remains the mechanically superior choice for Class I and II restorations
Keywords
References (14)
- Díaz-Garrido N, Lozano C, Giacaman RA. Frequency of sucrose exposure on the cariogenicity of a biofilm-caries model. European Journal of Dentistry. 2016;10(03):345-350. doi:10.4103/1305-7456.184163
- Goldstein GR. The Longevity of Direct and Indirect Posterior Restorations is Uncertain and may be Affected by a Number of Dentist-, Patient-, and Material-Related Factors. Journal of Evidence Based Dental Practice. 2010;10(1):30-31. doi:10.1016/j.jebdp.2009.11.015
- Sheiham A, James WPT. Diet and Dental Caries. Journal of Dental Research. 2015;94(10):1341-1347. doi:10.1177/0022034515590377
- Tsujimoto A, Barkmeier WW, Fischer NG, Nojiri K, Nagura Y, Takamizawa T, et al. Wear of resin composites: Current insights into underlying mechanisms, evaluation methods and influential factors. Japanese Dental Science Review. 2018;54(2):76-87. doi:10.1016/j.jdsr.2017.11.002
- El-Adl ET, Ebaya MM, Habib ESE, Zaghloul NM. Comparative measurement of short-term fluoride release and inhibition of caries around restoration by ion releasing restorative materials: an in vitro study. Scientific Reports. 2025;15(1). doi:10.1038/s41598-024-78918-x
- Khvostenko D, Hilton TJ, Ferracane JL, Mitchell JC, Kruzic JJ. Bioactive glass fillers reduce bacterial penetration into marginal gaps for composite restorations. Dental Materials. 2016;32(1):73-81. doi:10.1016/j.dental.2015.10.007
- Opdam, N. J., et al. (2014). Longevity of posterior composite restorations: a systematic review and meta-analysis. Journal of Dental Research, 93(10), 943–949.
- Heintze SD, Rousson V. Clinical effectiveness of direct class II restorations - a meta-analysis. J Adhes Dent. 2012 Aug;14(5):407–31. doi:10.3290/j.jad.a28390. PMID: 23082310.
- Pinto NS, Jorge GR, Vasconcelos J, Probst LF, De-Carli AD, Freire A. Clinical efficacy of bioactive restorative materials in controlling secondary caries: a systematic review and network meta-analysis. BMC Oral Health. 2023;23(1). doi:10.1186/s12903-023-03110-y
- Schwendicke, F., et al. (2016). Secondary caries and marginal adaptation of ion-releasing versus composite restorations: A systematic review.
- Mickenautsch, S., &Yengopal, V. (2016). Caries-preventive effect of glass ionomer and resin-based fissure sealants on permanent teeth: a meta-analysis.
- Sonbul HM. Influence of Bioactive Restorative Materials on Secondary Caries Prevention: A Clinical and In Vitro Study. Journal of Pharmacy and Bioallied Sciences. 2025;17(Suppl2):S1787-S1789. doi:10.4103/jpbs.jpbs_350_25
- Balhaddad AA, Kansara AA, Hidan D, Weir MD, Xu HHK, Melo MAS. Toward dental caries: Exploring nanoparticle-based platforms and calcium phosphate compounds for dental restorative materials. Bioactive Materials. 2019;4:43-55. doi:10.1016/j.bioactmat.2018.12.002
- Mushashe AM, de Almeida SA, Ferracane JL, Merritt J, Correr GM. Effect of biofilm exposure on marginal integrity of composite restorations. Am J Dent. 2020 Aug;33(4):201–205. PMID: 32794395; PMCID: PMC8136684.