Effect of smart dentin replacement, biodentine, and its combination for dentin replacement as alternatives to full-crown coverage for endodontically treated molars: An in vitro study

Objective: This study is aimed to investigate interfacial micro gaps between bases and hard setting calcium hydroxide liner. Materials and Methods: Twelve sound extracted human maxillary premolars were selected and immersed in 0.1% thymol solution. Samples were subjected to Class I cavity preparations with the width of 2.5 mm buccolingually, 3 mm mesiodistally, and 2 mm depth from the dentinoenamel junction (DEJ). The cavities were lined with hard setting calcium hydroxide lining (Dycal®), (Dentsply, USA) and then divided randomly into two groups. The cavities were restored with smart dentin replacement (SDR®), (Dentsply, Germany) and glass ionomer cement Ketac™ N100 (3M ESPE, USA) for Group 1 and 2, respectively, (n = 6 for each group) up to DEJ level. All samples were then packed with composite resin. Samples were cut longitudinally using a hard tissue cutter (Exact, Japan) and sanded with increasing grit sandpaper (#320, #500, #800, and #1200) for 30 s each and subjected for interfacial micro gaps analysis using scanning electron microscopy. Results: There was a significant difference of micro gap formation between two groups of base materials and hard setting calcium hydroxide (Dycal®) (P < 0.05). Conclusions: Lesser micro gap between Dycal® and SDR® compared to Dycal® and Ketac™ N100 suggested SDR® as a better base material to be used with Dycal® for deep caries management.

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Interfacial Micro Gaps between Dentin Bases and Hard Setting Calcium Hydroxide Liner

Alawi

Lotfy²,

Zakaria³

et al. 2021

Dentistry and Medical Research

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Comparative evaluation of fracture resistance of root canal treated teeth restored with two post endodontic restorative materials: An in vitro analysis

Gautam,

Paramasivam,

Sivarajan

2024

Endodontology

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Aim: This study aims to compare and evaluate the fracture resistance of root canal-treated teeth restored using smart dentin replacement (SDR) and short fiber-reinforced composite (SFC) resin composite. Methods: Forty-eight unrestored, noncarious maxillary premolar teeth, mounted on acrylic blocks, were randomly divided into four groups (n = 12). The teeth were endodontically treated following a mesio–occlusal–distal (MOD) cavity preparation (except Group I – Positive control. Group II was the negative control (unrestored) and the remaining two groups were restored with two core build-up materials: Group III with SDR flow+ (SureFil SDR Flow+, Dentsply, India) bulk fill flowable composite and Group IV with EverX Posterior™ (GC Company, Tokyo, Japan) SFC. Each group was subsequently subjected to compressive testing until failure, using a universal testing machine. The mean fracture resistance was analyzed statistically and the data were formulated. Results: No statistical significance between Groups I, III, and IV. Group III and IV performed better than Group II and the mean fracture resistance of Group II was lesser than the other groups. Conclusion: Within the constraints of the study, it can be stated that both SDR flow and EverX posterior performed well and were equally effective as a postendodontic restorative material, thus improving the fracture resistance of root canal-treated teeth.

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Comparative Evaluation of Novel Bulk Fill Resin Composites with Conventional Composites for Microleakage Formation – A Steromicroscopic Study

Warad

Manish²,

Airani

et al. 2022

Journal of Pharmacy and Bioallied Sciences

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Aim: The purpose of this study was to assess and compare microleakage of two novel bulk-fill resin composites with traditional incremental composites. Materials and Methods: Standardized conservative Class II cavities were made on 120 sound maxillary premolars having approximately 4 mm of width with 2 mm gingival extension below CEJ keeping all line angles round and cavosurface margins beveled. Samples were categorized into the group of three (n = 40), based on composites used; Smart Dentine Replacement (SDR), X Tra Fill, and Z350 XT. The prepared cavities were filled with respective composites to a depth of 4 mm. Post thermocycling, Specimens were absorbed in 0.5% methylene blue for 8 h and soaked in tap water for 12 h samples were later split in mesiodistal direction at the center of the composite restorations with diamond disc. A total of 240 samples were obtained. The samples were viewed with ×20. One-way ANOVA and post-hoc Bonferroni test were used to derive statistical data. Results: SDR demonstrated considerably less micro leakage in comparison with X-Tra fill composites. Significantly high microleakage was observed in the traditional composites (Z350 XT). Conclusion: Novel Bulk-fill resin composites exhibited better adaptability and less microleakage compared to traditional multilayer composites.

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Effect of smart dentin replacement, biodentine, and its combination for dentin replacement as alternatives to full-crown coverage for endodontically treated molars: An in vitro study

Cited by 3 publications

References 18 publications

Interfacial Micro Gaps between Dentin Bases and Hard Setting Calcium Hydroxide Liner

Interfacial Micro Gaps between Dentin Bases and Hard Setting Calcium Hydroxide Liner

Comparative evaluation of fracture resistance of root canal treated teeth restored with two post endodontic restorative materials: An in vitro analysis

Comparative Evaluation of Novel Bulk Fill Resin Composites with Conventional Composites for Microleakage Formation – A Steromicroscopic Study

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