Comparative evaluation of shear bond strength of a traditional composite and ACTIVA BioACTIVE after enamel preparation with Er:YAG laser and conventional acid etching: An in vitro study

Nijhawan, Charu; Jasuja, Purshottam; Sharma, Anshu; Khurana, Heena; Gakhar, Ekta

doi:10.4103/jdl.jdl_3_19

Cited by 6 publications

(5 citation statements)

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“…Negative correlations were found between the etching depth and etching pattern and SBS with the etching pattern. It means that with an increase in the value of etching depth & SBS, the etching pattern value will be reduced [22][23][24][25]. Regular and distinct type I and type 2 patterns provided maximum adhesion, which coincides with the present study.…”

Section: Discussionsupporting

confidence: 90%

Effectiveness of Different Etching Agents on Enamel Surface and Shear Bond Strength: An In Vitro Evaluation

Jani,

Shah,

Shankar

et al. 2024

Cureus

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Background Enamel etching is of utmost importance during the orthodontic bonding procedure. Phosphoric acid, hydrofluoric acid, and citric acid are used in specific concentrations to create surface irregularities on enamel surfaces, enhancing the bond strength of the orthodontic attachment. Therefore, it is essential to evaluate the type of etchant for reliable orthodontic bracket bonding with minimal damage to the enamel surface. Aims and objectives This study aimed to investigate the morphological changes on the enamel surface after treatment with different surface etchants, assess the depth of penetration, and evaluate the shear bond strength (SBS) of orthodontic brackets. Materials and methods One hundred and one extracted premolar teeth were used to investigate morphological changes on the enamel surface treated with 37% phosphoric acid, 11% hydrofluoric acid, and 20% citric acid. It was evaluated on a scanning electron microscope (Jeol Scientific Equipment, Jeol Limited, Akishima, Japan), and the SBS of brackets on enamel treated with different etching agents was evaluated using an Instron Universal Testing Machine (UTM; Instron Model: 5982, Universal Testing Systems, Norwood, MA). Group A had 60 test samples. Group B had 40 test samples. One control without any acid etching was used in both groups. Subgroup A1 (n = 30) was evaluated for surface characteristics of acid-etched enamel. Subgroup A2 was assessed for the penetration depth of various etchants. Group B (n = 40) was tested for SBS. The results were tabulated and analyzed using IBM SPSS Statistics, version 20.0 (IBM Corp., Armonk, NY). Post hoc Tukey HSD test and one-way analysis of variance were used to assess SBS and penetration depth of etchants (P ≤ 0.05). Pearson’s correlation test was used to correlate SBS, etching pattern, and penetration depth. The chi-square test was used to test the frequency of types of etching patterns. Results Intergroup correlations between etching depth, etching pattern evaluated on SEM, and SBS evaluated on the UTM showed a high statistical correlation between etching depth & SBS, etching depth & etching pattern, and SBS & etching pattern between A1, A2, and group B (P ≤ 0.001). A highly significant negative correlation between SBS & etching pattern (P = 0.42) was observed among intra-group correlation. Non-significant correlations were found between etching depth & SBS and etching depth & etching pattern within the 20% citric acid etch group (P = 0.370 and 0.141, respectively). Conclusion Penetration depth obtained was highest with 11% hydrofluoric acid, followed by 37% phosphoric acid and 20% citric acid. In addition, 11% hydrofluoric acid showed the highest bond strength. Acid etching showed better penetration depth and bond strength than control.

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Section: Discussionsupporting

confidence: 90%

Effectiveness of Different Etching Agents on Enamel Surface and Shear Bond Strength: An In Vitro Evaluation

Jani,

Shah,

Shankar

et al. 2024

Cureus

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“…Chemical changes can also occur as a result of crystal liquefaction, that happen when the tooth is subjected to high temperatures. This liquefaction process could be responsible for obliterating the microporous surface and reduction in bond strength (Nijhawan et al, 2019;De-Melo et al, 2011). In general, diode laser irradiation did not improve bond strength of composite or Activa restorations in this investigation.…”

Section: Discussionmentioning

confidence: 52%

Influence of Diode Laser Irradiation on Shear Bond Strength of Activa™ and Composite Resin Restorations in Primary Molars: An in Vitro Study.

Kotb,

Abd Al Gawad,

Mohamed

2023

Advanced Dental Journal

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Aim:The aim of this study was to evaluate the influence of diode laser irradiation on the bond strength of two esthetic restorative materials; Activa bioactive restoration and composite resin. Materials and Methods: 104 primary molars were collected and divided into two main groups (n=52) (Laser and No laser). Teeth were mounted in acrylic molds and prepared to expose enamel and dentin surfaces. Samples of each group were randomly distributed into 4 subgroups: Activa + enamel, Activa + dentin, composite + enamel and composite + dentin. Enamel samples were etched, while universal adhesive was used for Activa and composite samples in dentin. Diode laser irradiation (980nm wavelength, 1W power, continuous mode) was applied after adhesive application and before polymerization. After thermocycling for 500 cycle, microshear bond was measured using universal testing machine and values were obtained in MPs. Statistical analysis was done using three ways ANOVA. Results: Mean bond strength of enamel samples were significantly higher than dentin samples (p<0.05). In Activa bioactive restoration samples, diode laser irradiation significantly reduced microshear bond strength in enamel and dentin. Irradiation with diode laser did not significantly improve the mean microshear bond strength in enamel and dentin composite samples. Conclusion: Diode laser irradiation did not improve bond strength of composite restorations when applied before adhesive polymerization of primary teeth and had negative effect on bond strength of Activa bioactive restorations.

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“…Nijhawan et al in 2019 (32), compared the shear bond strength of ACTIVA to that of the traditional composite. In this study enamel was pretreated using a method other than the one used in the current study.…”

Section: Discussionmentioning

confidence: 99%

ASSESSMENT OF SHEAR BOND STRENGH AND MARGINAL ADAPTATION OF ACTIVA VERSUS Fuji II LC IN PRIMARY MOLARS IN VITRO

El-Noueam

Hanno²,

Dowidar³

et al. 2023

Alexandria Dental Journal

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BACKGROUND:Restoration of decayed primary molars remains a key concern in pediatric dentistry, in which proper retention, marginal seal and pulp protection are very essential in preventing secondary caries. This necessitated the development of materials such as ACTIVA BioACTIVE Restorative (ACTIVA). AIM OF THE STUDY:To assess the strength of the shear bond, bond mode of failure as well as marginal adaptation of ACTIVA in comparison to Fuji II LC when used in primary molars. MATERIALS AND METHODS:The present research is an in vitro experimental, comparative study where sixty primary extracted molars were randomly divided into two groups (A and B); each group consisted of 30 specimens. Group A was used for measuring shear bond strength and group B for measuring marginal adaptation. Group A and group B were subdivided each into three subgroups. The first subgroup received ACTIVA with no pretreatment (I). Second subgroup received ACTIVA with adhesive (II). Third subgroup received Fuji II LC (III). RESULTS: For shear bond strength, there is a significant difference between ACTIVA with adhesive (AII) and Fuji II LC (AIII) (p= 0.008). No significant differences were found between ACTIVA with no adhesive (AI) and ACTIVA with adhesive (AII) and between ACTIVA with no adhesive (AI) and Fuji II LC (AIII) {(p=0.824) and (p= 0.161) respectively}. For marginal adaptation, there is a significant difference between ACTIVA with no adhesive (BI) and ACTIVA with adhesive (BII) and between ACTIVA with adhesive (BII) and Fuji II LC (BIII) {(p=0.020) and (p<0.0001) respectively}. No significant difference was found between ACTIVA with no adhesive (BI) and Fuji II LC (BIII) (p= 0.345). CONCLUSION: ACTIVA with adhesive provided better results in comparison to ACTIVA without adhesive and Fuji II LC.

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Comparative evaluation of shear bond strength of a traditional composite and ACTIVA BioACTIVE after enamel preparation with Er:YAG laser and conventional acid etching: An in vitro study

Cited by 6 publications

References 0 publications

Effectiveness of Different Etching Agents on Enamel Surface and Shear Bond Strength: An In Vitro Evaluation

Effectiveness of Different Etching Agents on Enamel Surface and Shear Bond Strength: An In Vitro Evaluation

Influence of Diode Laser Irradiation on Shear Bond Strength of Activa™ and Composite Resin Restorations in Primary Molars: An in Vitro Study.

ASSESSMENT OF SHEAR BOND STRENGH AND MARGINAL ADAPTATION OF ACTIVA VERSUS Fuji II LC IN PRIMARY MOLARS IN VITRO

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