Do the Mechanical Properties of Calcium-Silicate-Based Cements Influence the Stress Distribution of Different Retrograde Cavity Preparations?

Richert, Raphaël; Mancino, Davide; Jmal, Hamdi; Alkhouri, Sleman; Addiego, Frédéric; Kharouf, Naji; Haïkel, Youssef

doi:10.3390/ma16083111

Cited by 6 publications

(5 citation statements)

References 31 publications

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“…The aim of endodontic microsurgery is to preserve teeth that have not responded to the traditional orthograde treatment or retreatment. Various factors can affect the healing of the resected tooth, including the formation of cracks during apicoectomy and root-end preparation, 16 retrograde cavity design, 28 retrograde filling materials, 29 and the homogeneity and roughness of the sectioned surfaces. 19 In addition, certain materials used in root canal obturation may exert biological, 30 mechanical, 28,31 and physicochemical 32 effects on the tooth's canal system, including dentinal tubules and overall structure.…”

Section: Discussionmentioning

confidence: 99%

“…Various factors can affect the healing of the resected tooth, including the formation of cracks during apicoectomy and root-end preparation, 16 retrograde cavity design, 28 retrograde filling materials, 29 and the homogeneity and roughness of the sectioned surfaces. 19 In addition, certain materials used in root canal obturation may exert biological, 30 mechanical, 28,31 and physicochemical 32 effects on the tooth's canal system, including dentinal tubules and overall structure. BioRoot RCS was used in the present study due to its previously observed bioactivity such as Ca 2þ release, pH changes, and the remineralization process.…”

Section: Discussionmentioning

confidence: 99%

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Effectiveness of Sectioning Method and Filling Materials on Roughness and Cell Attachments in Root Resection Procedure

Ashi,

Kharouf,

Etienne

et al. 2024

Eur J Dent

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Objectives The purpose of the present study was to investigate the created roughness and cell attachment of intact teeth (C), obturated teeth with bioceramic (BR), or epoxy resin (AH) after root resection using piezoelectric ultrasonic and carbide bur. Materials and Methods Three groups of first mandibular premolars were used in the present study: control group (without any preparation or obturation) (C); second group was obturated with an epoxy resin sealer (AH, AH Plus Jet); and finally, the third one was obturated with a bioceramic sealer (BR, BioRoot RCS). All teeth were incubated for 4 months at 37°C. After that, the samples were sectioned using tungsten carbide bur or piezoelectric ultrasonic. Roughness and then cell attachment of periodontal ligament cells on the sectioned surfaces were investigated by profilometer and confocal microscope, respectively. Statistical Analysis Data were statistically analyzed using one-way analysis of variance. Results After root resection, no significant difference was found between the roughness among the three groups sectioned using the piezoelectric technique (p > 0.05). In contrast, concerning the sectioned samples by burs, C demonstrated a rougher surface compared with BR (p < 0.05). There was a significant higher cell attachment in BR compared with AH in the piezoelectric groups (p = 0.047), while no statistically significant difference was found between the groups sectioned with bur (p > 0.05). Conclusion Dentists are now focused on the use of calcium silicate-based sealers due to their bioactivity. The present study advises dentists to use bioceramic sealer which could improve the dentin characteristics which ameliorate the cell attachment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effectiveness of Sectioning Method and Filling Materials on Roughness and Cell Attachments in Root Resection Procedure

Ashi,

Kharouf,

Etienne

et al. 2024

Eur J Dent

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“…Furthermore, clinical studies should be conducted to confirm these laboratory findings. Furthermore, a single finite element model was used following the protocols of validated finite element studies [40,71]. It is, however, of particular importance to note that patient-specific parameters such as the root canal anatomy could influence the biomechanical behavior of the tooth [72] and should be investigated in future studies using a higher number of finite element models.…”

Section: Discussionmentioning

confidence: 99%

Stronger than Ever: Multifilament Fiberglass Posts Boost Maxillary Premolar Fracture Resistance

Kharouf

Pedullà

Plotino³

et al. 2023

JCM

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This paper investigates the influence of cavity configuration and post-endodontic restoration on the fracture resistance, failure mode and stress distribution of premolars by using a method of fracture failure test and finite elements analysis (FEA) coupled to Weibull analysis (WA). One hundred premolars were divided into one control group (Gcontr) (n = 10) and three experimental groups, according to the post-endodontic restoration (n = 30), G1, restored using composite, G2, restored using single fiber post and G3, restored using multifilament fiberglass posts (m-FGP) without post-space preparation. Each experimental group was divided into three subgroups according to the type of coronal cavity configuration (n = 10): G1O, G2O, and G3O with occlusal (O) cavity configuration; G1MO, G2MO, and G3MO with mesio-occlusal (MO); and G1MOD, G2MOD, and G3MOD with mesio-occluso-distal (MOD). After thermomechanical aging, all the specimens were tested under compression load, and failure mode was determined. FEA and WA supplemented destructive tests. Data were statistically analyzed. Irrespective of residual tooth substance, G1 and G2 exhibited lower fracture resistance than Gcontr (p < 0.05), whereas G3 showed no difference compared to Gcontr (p > 0.05). Regarding the type of restoration, no difference was highlighted between G1O and G2O, G1MO and G2MO, or G1MOD and G2MOD (p > 0.05), whereas G3O, G3MO, and G3MOD exhibit higher fracture resistance (p < 0.05) than G1O and G2O, G1MO and G2MO, and G1MOD and G2MOD, respectively. Regarding cavity configuration: in G1 and G2, G1O and G2O exhibited higher fracture resistance than G1MOD and G2MOD, respectively (p < 0.05). In G3, there was no difference among G3O, G3MO and G3MOD (p > 0.05). No difference was found among the different groups and subgroups regarding the failure mode. After aging, premolars restored with multifilament fiberglass posts demonstrated fracture resistance values comparable to those of an intact tooth, irrespective of the different type of cavity configuration.

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“…Several studies noted that any change or error in the powder liquid ratio during mixing could affect the setting time and physicochemical properties of these materials [17]. Recently, Well Root PT (Vericom, Gangwon-do, Republic of Korea), a novel premixed bioceramic material, was introduced in the dental market and its physicochemical, antibacterial, and mechanical properties were investigated [17,19]. Until now, there has been no clinical study that used this new material in a revascularization procedure.…”

Section: Introductionmentioning

confidence: 99%

Revascularization of Non-Vital, Immature, Permanent Teeth with Two Bioceramic Cements: A Randomized Controlled Trial

Shaker,

Rekab,

Alharissy

et al. 2024

Ceramics

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The aim of this study was to clinically and radiographically assess the effects of two bioceramic cements as coronal plug materials for the revascularization of non-vital, immature, permanent teeth with apical periodontitis. Twenty non-vital, immature, permanent, anterior teeth with apical periodontitis were included in this study. Samples were randomly divided into two groups based on the coronal plug materials used; group I (GI): Well Root PT (Vericom, Gangwon-do, Korea) and group II (GII): MTA Biorep (Itena Clinical, Paris, France) (n = 10). Follow-up was conducted clinically and radiographically for up to 12 months to evaluate the changes in root dimensions and resolution of the periapical disease and investigate the degree of success. Data were statistically analyzed using ANOVA tests and Mann–Whitney U tests at a 0.05 significance level. At 12 months, none of the patients in either test group had clinical signs/symptoms. There was a slight increase in root length (4.4% in GI and 3.4% in GII) and a slight increase in dentin wall thickness (10.2% in GI and 9.9% in GII) with no statistically significant (p > 0.05) differences. Whilst there was a significant decrease in lesion dimension in all patients after 12 moths of treatment (93% in GI and 91% in GII), there were no statistically significant differences between the two study groups (p > 0.05). Regarding the degree of success, all cases (100%) achieved the primary goal (the elimination of symptoms and the evidence of bony healing), while 60% in GI and 40% in GII achieved the secondary goal (increased root wall thickness and/or increased root length). No statistically significant difference was found between groups (p > 0.05). Both bioceramic cements showed satisfactory clinical and radiographic findings. Premixed calcium aluminosilicate and tricalcium silicate cements could be used as coronal plug materials in revascularization procedures. Bioceramic cements can be considered promising coronal plug materials for the revascularization of immature, permanent teeth with necrotic pulps and apical periodontitis due to their physicochemical and biological properties.

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Do the Mechanical Properties of Calcium-Silicate-Based Cements Influence the Stress Distribution of Different Retrograde Cavity Preparations?

Cited by 6 publications

References 31 publications

Effectiveness of Sectioning Method and Filling Materials on Roughness and Cell Attachments in Root Resection Procedure

Effectiveness of Sectioning Method and Filling Materials on Roughness and Cell Attachments in Root Resection Procedure

Stronger than Ever: Multifilament Fiberglass Posts Boost Maxillary Premolar Fracture Resistance

Revascularization of Non-Vital, Immature, Permanent Teeth with Two Bioceramic Cements: A Randomized Controlled Trial

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