scholarly journals Pre-application of dentin bonding agent prevents discoloration by mineral trioxide aggregate

2020 ◽  
Author(s):  
Yoo-Lim Choi ◽  
Young-Eun Jang ◽  
Bom Sahn Kim ◽  
Jin-Woo Kim ◽  
Yemi Kim
Keyword(s):  
Mineral Trioxide Aggregate ◽  
Bonding Agent ◽  
Control Group ◽  
Dentin Bonding ◽  
Color Changes ◽  
Tooth Discoloration ◽  
Significant Difference ◽  
Dentin Bonding Agent ◽  
The Difference ◽  
Root Surfaces

Abstract Background: To evaluate tooth discoloration by newly developed calcium silicate-based materials, and to examine the pre-application of dentin bonding agent (DBA) for preventing discoloration caused by mineral trioxide aggregate (MTA). Methods: The roots of 50 premolars were randomly divided into five groups (n=10) and cavities were prepared from resected root surfaces. MTA was placed in the cavities of teeth belonging to the ProRoot MTA (Pr) and RetroMTA (Rt) groups. For teeth belonging to the DBA + ProRoot MTA (B-Pr) and DBA + RetroMTA (B-Rt) groups, DBA was first applied to the cavities prior to the addition of MTA. Teeth in the control group were restored with composite resin only (i.e., without MTA). After 12 weeks, MTA was removed from the Pr and Rt teeth and bleaching agents were applied for 3 additional weeks. Color assessments were recorded at baseline, and 1, 4, and 12 weeks, as well as after bleaching. Results: Following 12 weeks of MTA treatment, there was a significant difference between the discoloration in the Pr and B-Pr groups. However, no significant difference was observed between the Rt and B-Rt groups. Following bleaching, the color changes (ΔE values) of the Pr group were not significantly different from those of the B-Pr group. The difference of ΔE between the Rt group after internal bleaching and the B-Rt group also was not significant. Conclusions: RetroMTA caused significantly less discoloration than ProRoot MTA. Pre-application of DBA prevented discoloration by ProRoot MTA. MTA discoloration was improved equally well between DBA pre-application and post-bleaching. Clinical Relevance Tooth discoloration by mineral trioxide aggregate (MTA) limits its use in esthetic region. The pre-application of dentin bonding agent (DBA) and the newly developed RetroMTA prevented discoloration caused by MTA, thus expanding its use in esthetic applications.

scholarly journals Pre-application of dentin bonding agent prevents discoloration caused by mineral trioxide aggregate

2020 ◽  
Author(s):  
Yoo-Lim Choi ◽  
Young-Eun Jang ◽  
Bom Sahn Kim ◽  
Jin-Woo Kim ◽  
Yemi Kim
Keyword(s):  
Statistical Significance ◽  
Mineral Trioxide Aggregate ◽  
Bonding Agent ◽  
Control Group ◽  
P Value ◽  
Dentin Bonding ◽  
Color Changes ◽  
Tooth Discoloration ◽  
Significant Difference ◽  
Dentin Bonding Agent

Abstract Background: To evaluate tooth discoloration by newly developed calcium silicate-based materials, and to examine the pre-application of dentin bonding agent (DBA) for preventing discoloration caused by mineral trioxide aggregate (MTA). Methods: The roots of 50 premolars were randomly divided into five groups (n=10) and cavities were prepared from resected root surfaces. MTA was placed in the cavities of teeth belonging to the ProRoot MTA (MTA) and RetroMTA (RMTA) groups. For teeth belonging to the ProRoot + DBA (MTA-B) and RetroMTA + DBA (RMTA-B) groups, DBA was first applied to the cavities prior to the addition of MTA. Teeth in the control group were restored with composite resin only (i.e., without MTA). After 12 weeks, MTA was removed from the MTA and RMTA groups and bleaching agents were applied for 3 additional weeks. Color assessments were recorded at baseline, and 1, 4, and 12 weeks, as well as after bleaching. A one-way ANOVA was performed to assess the differences between the two types of MTAs and color changes following DBA pre-application in each MTA group. A p-value of < 0.05 was considered indicative of statistical significance. Results: Following 12 weeks of MTA treatment, there was a significant difference between the discoloration in the MTA and RMTA groups ( p < 0.05). However, no significant difference was observed between the RMTA and RMTA-B groups ( p > 0.05). Following bleaching, the color changes (ΔE values) of the MTA group were not significantly different from those of the MTA-B group ( p > 0.05). The difference of ΔE between the RMTA group after internal bleaching and the RMTA-B group was also not significant ( p > 0.05). Conclusions: RetroMTA caused significantly less discoloration than ProRoot MTA. Pre-application of DBA reduced discoloration caused by ProRoot MTA. MTA discoloration was improved equally well between DBA pre-application and post-bleaching. Clinical Relevance: Tooth discoloration by mineral trioxide aggregate (MTA) limits its use in esthetic regions. The pre-application of dentin bonding agent (DBA) and the use of newly developed RetroMTA could help to prevent the discoloration caused by MTA.

scholarly journals Pre-application of dentin bonding agent prevents discoloration caused by mineral trioxide aggregate

2020 ◽  
Author(s):  
Yoo-Lim Choi ◽  
Young-Eun Jang ◽  
Bom Sahn Kim ◽  
Jin-Woo Kim ◽  
Yemi Kim
Keyword(s):  
Statistical Significance ◽  
Mineral Trioxide Aggregate ◽  
Bonding Agent ◽  
Control Group ◽  
P Value ◽  
Dentin Bonding ◽  
Color Changes ◽  
Tooth Discoloration ◽  
Significant Difference ◽  
Dentin Bonding Agent

Abstract Background: To evaluate tooth discoloration by newly developed calcium silicate-based materials, and to examine the pre-application of dentin bonding agent (DBA) for preventing discoloration caused by mineral trioxide aggregate (MTA).Methods: The roots of 50 premolars were randomly divided into five groups (n=10) and cavities were prepared from resected root surfaces. MTA was placed in the cavities of teeth belonging to the ProRoot MTA (MTA) and RetroMTA (RMTA) groups. For teeth belonging to the ProRoot + DBA (MTA-B) and RetroMTA + DBA (RMTA-B) groups, DBA was first applied to the cavities prior to the addition of MTA. Teeth in the control group were restored with composite resin only (i.e., without MTA). After 12 weeks, MTA was removed from the MTA and RMTA groups and bleaching agents were applied for 3 additional weeks. Color assessments were recorded at baseline, and 1, 4, and 12 weeks, as well as after bleaching. A one-way ANOVA was performed to assess the differences between the two types of MTAs and color changes following DBA pre-application in each MTA group. A p-value of < 0.05 was considered indicative of statistical significance.Results: Following 12 weeks of MTA treatment, there was a significant difference between the discoloration in the MTA and RMTA groups (p < 0.05). However, no significant difference was observed between the RMTA and RMTA-B groups (p > 0.05). Following bleaching, the color changes (ΔE values) of the MTA group were not significantly different from those of the MTA-B group (p > 0.05). The difference of ΔE between the RMTA group after internal bleaching and the RMTA-B group was also not significant (p > 0.05).Conclusions: RetroMTA caused significantly less discoloration than ProRoot MTA. Pre-application of DBA reduced discoloration caused by ProRoot MTA. MTA discoloration was improved equally well between DBA pre-application and post-bleaching.

scholarly journals Pre-application of dentin bonding agent prevents discoloration caused by mineral trioxide aggregate

2020 ◽  
Author(s):  
Yoo-Lim Choi ◽  
Young-Eun Jang ◽  
Bom Sahn Kim ◽  
Jin-Woo Kim ◽  
Yemi Kim
Keyword(s):  
Statistical Significance ◽  
Mineral Trioxide Aggregate ◽  
Bonding Agent ◽  
Control Group ◽  
P Value ◽  
Dentin Bonding ◽  
Color Changes ◽  
Tooth Discoloration ◽  
Significant Difference ◽  
Dentin Bonding Agent

Abstract Background: To evaluate tooth discoloration by newly developed calcium silicate-based materials, and to examine the pre-application of dentin bonding agent (DBA) for preventing discoloration caused by mineral trioxide aggregate (MTA).Methods: The roots of 50 premolars were randomly divided into five groups (n=10) and cavities were prepared from resected root surfaces. MTA was placed in the cavities of teeth belonging to the ProRoot MTA (MTA) and RetroMTA (RMTA) groups. For teeth belonging to the ProRoot + DBA (MTA-B) and RetroMTA + DBA (RMTA-B) groups, DBA was first applied to the cavities prior to the addition of MTA. Teeth in the control group were restored with composite resin only (i.e., without MTA). After 12 weeks, MTA was removed from the MTA and RMTA groups and bleaching agents were applied for 3 additional weeks. Color assessments were recorded at baseline, and 1, 4, and 12 weeks, as well as after bleaching. A one-way ANOVA was performed to assess the differences between the two types of MTAs and color changes following DBA pre-application in each MTA group. A p-value of < 0.05 was considered indicative of statistical significance.Results: Following 12 weeks of MTA treatment, there was a significant difference between the discoloration in the MTA and RMTA groups (p < 0.05). However, no significant difference was observed between the RMTA and RMTA-B groups (p > 0.05). Following bleaching, the color changes (ΔE values) of the MTA group were not significantly different from those of the MTA-B group (p > 0.05). The difference of ΔE between the RMTA group after internal bleaching and the RMTA-B group was also not significant (p > 0.05).Conclusions: RetroMTA caused significantly less discoloration than ProRoot MTA. Pre-application of DBA reduced discoloration caused by ProRoot MTA. MTA discoloration was improved equally well between DBA pre-application and post-bleaching.Clinical Relevance: Tooth discoloration by mineral trioxide aggregate (MTA) limits its use in esthetic regions. The pre-application of dentin bonding agent (DBA) and the use of newly developed RetroMTA could help to prevent the discoloration caused by MTA.

scholarly journals Effect of Dentin Bonding Agent on the Prevention of Tooth Discoloration Produced by Mineral Trioxide Aggregate

2012 ◽  
Vol 2012 ◽  
pp. 1-3 ◽  
Author(s):  
Majid Akbari ◽  
Armita Rouhani ◽  
Sadeq Samiee ◽  
Hamid Jafarzadeh
Keyword(s):  
Mineral Trioxide Aggregate ◽  
Bonding Agent ◽  
Color Measurement ◽  
Control Group ◽  
Dentin Bonding ◽  
Tooth Discoloration ◽  
Significant Difference ◽  
Dentin Bonding Agent ◽  
And Control

Objective. Determination of the effect of dentin bonding agent (DBA) on the prevention of tooth discoloration produced by mineral trioxide aggregate (MTA).Methods. 50 teeth were endodontically treated and after removal of 3 mm of obturating materials were divided into five groups. In white MTA (WMTA) and grey MTA (GMTA) groups, these materials were placed in root canal below the orifice. In DBA + WMTA and DBA + GMTA groups, DBAs were applied in the access cavity. Then, 3 mm of WMTA and GMTA was placed. The last 10 teeth served as control. All of teeth were restored and color measurement was recorded for each specimen at this time and 6 months later.Results. The mean tooth discoloration in WMTA and GMTA groups was significantly more than DBA + WMTA and DBA + GMTA groups, respectively. There was no significant difference between DBA + WMTA and DBA + GMTA groups and control group.Conclusion. Application of DBA before MTA may prevent tooth discoloration.

scholarly journals In vitro antibacterial effect of fifth generation dentin bonding agent incorporated with nisin on Streptococcus mutans

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Gopal Keerthipriya ◽  
Nesamani Ravikumar ◽  
Sekar Mahalaxmi
Keyword(s):  
Streptococcus Mutans ◽  
Optical Density ◽  
Bacterial Growth ◽  
Membrane Integrity ◽  
Bonding Agent ◽  
Control Group ◽  
Dentin Bonding ◽  
Fifth Generation ◽  
Live Bacteria ◽  
Dentin Bonding Agent

Abstract Introduction Bacterial adherence to restorative materials such as composite resin is one of the aetiology of secondary caries. This study evaluated the antibacterial efficacy of fifth generation bonding agent (BA) modified with nisin, against Streptococcus mutans based on its growth, adherence and membrane integrity. Methods Adhesive eluents of the experimental bonding agents were obtained using 250 μl Brain Heart Infusion (BHI) broth and the groups were control (BA with 0% Nisin), bonding agent with 1 wt% (NBA 1) and 5 wt% nisin (NBA 5). To this, 10 μl S. mutans culture was added and incubated at 37 °C. Bacterial growth was estimated by changes in optical density using spectrophotometer every 20 min for 2 h. The results were statistically analysed using one way ANOVA followed by Tukey Post Hoc test. For adherence and membrane integrity test, 10 μl of BHI supplemented with 1% sucrose and 50 μl of bacterial suspension were inoculated onto the cured specimens, and incubated for 4 h. After rinsing, 1 ml of Live/Dead BacLight bacterial viability stain was added and incubated in the dark for 15 min and observed under confocal laser scanning microscope (CLSM) for intact (green/live) and damaged (red/dead) bacterial membranes. Results Mean optical density was significantly higher in control group at all time intervals with maximum value at 2 h (0.83 ± 0.008), while there was a concentration dependant reduction in bacterial growth with the NBA groups (0.50 ± 0.007). Correspondingly, the NBA groups showed higher amount of dead than live bacteria, while live bacteria were predominant in the control group. Significance Addition of an antibacterial agent nisin in dentin bonding agent may render the resin dentin interface more resistant to bacterial penetration, and adherence of cariogenic bacteria like S. mutans.

Quantifying Coronal Permanent Tooth Discoloration Caused by Different Pulpotomy Materials

2021 ◽  
Vol 45 (5) ◽  
pp. 306-311
Author(s):  
Hanaa Azem ◽  
Sigalit Blumer ◽  
Benjamin Peretz ◽  
Sohad Haj-Yahya ◽  
Shlomo Elbahary
Keyword(s):  
Color Space ◽  
Mineral Trioxide Aggregate ◽  
Permanent Tooth ◽  
Control Group ◽  
Major Drawback ◽  
Tooth Structure ◽  
Color Changes ◽  
Base Materials ◽  
Tooth Discoloration ◽  
Over Time

Introduction: Bioceramic materials, gray and white mineral trioxide aggregate (GMTA, WMTA), have been shown to have high rates of success in various endodontic applications. A major drawback is their tendency to discolor teeth compared to Biodentine (BD), that has been claimed not to discolor teeth. The aim of this study was to compare tooth discoloration after applying different pulpotomy base materials (BD, GMTA and WMTA). Study design: Forty human incisors teeth were used in this study. Coronal access was achieved by a Tungsten Carbide drill, and the pulp chambers were accessed and chemo-mechanically debrided. Each material was placed in the pulp chamber, up to the cervical sectioning level. All specimens were incubated at 37°C and 100% humidity for three months and have been evaluated before the study and weekly. Color was assessed according to the CIE L*a*b* color space system. Results: ΔE of all experimental groups (GMTA, WMTA and BD) were significantly different from the control group at all time points (P&lt;0.05). Color changes in the GMTA and WMTA groups, had no statistically significant differences, but showed higher discoloration compared to BD group in the cervical part of the crown, since week 1 (P&lt;0.05). WMTA group showed significant discoloration in the cervical part as of week 1 (P&lt;0.05), and gradually increased over time (Figure 2). BD group showed no significantly discoloration over time. GMTA group showed the significant discoloration at week 1 and week 14 (P&lt;0.05). Conclusions: both GMTA and WMTA pulpotomy materials may discolor tooth structure over time in an extracted permanent anterior tooth model. When choosing bioceramic pulpotomy material, BD may be preferable in esthetic area.

Quantifying Coronal Primary Tooth Discoloration Caused by Different Pulpotomy Materials

2020 ◽  
Vol 44 (3) ◽  
pp. 142-147
Author(s):  
S Elbahary ◽  
R Bercovich ◽  
N Flaisher-Salem ◽  
H Azem
Keyword(s):  
Color Space ◽  
Mineral Trioxide Aggregate ◽  
Primary Tooth ◽  
Control Group ◽  
Major Drawback ◽  
Tooth Structure ◽  
Color Changes ◽  
Base Materials ◽  
Tooth Discoloration ◽  
Over Time

Introduction: Bioceramic materials, gray and white mineral trioxide aggregate (GMTA, WMTA), have been shown to have high rates of success in various endodontic applications. A major drawback is their tendency to discolor teeth. Biodentine (BD), a recenlty developed bioceramic material, has been claimed not to discolor teeth. The aim of this study was to compare tooth discoloration after applying different pulpotomy base materials (BD, GMTA and WMTA). Methods: Forty human fully developed primary incisors teeth were used in this study. Coronal access was achieved by a Tungsten Carbide drill, and the pulp chambers were accessed and chemo-mechanically debrided. Each material was placed in the pulp chamber, up to the cervical sectioning level. All specimens were incubated at 37°C and 100% humidity for 14 weeks and have been evaluated before the study and weekly. Color was assessed according to the CIE L*a*b* color space system. Results: The ΔE (delta E) of all experimental groups (GMTA, WMTA and BD) were significantly different from the control group at all time points. Color changes in the GMTA and WMTA groups showed significantly higher discoloration compared to BD group in the cervical part of the crown, since week 1. WMTA group showed significant discoloration in the cervical part as of week 1, and gradually increased over time. BD group showed no significant discoloration over time. GMTA group showed the most significant discoloration at week 1 and week 14 (P&lt;0.05). Conclusions: both GMTA and WMTA pulpotomy materials may discolor tooth structure over time in an extracted primary anterior tooth model. When choosing bioceramic pulpotomy material, BD may be preferable, mainly in esthetic area.

scholarly journals Evaluation of caries – protective effect of three recent dentin bonding agents, xeno v plus, tetric n bond ,one coat seven universal on demineralized root surface "- An in vitro study

2019 ◽  
pp. 29-41
Author(s):  
Tanvi Dugge ◽  
Balaram Naik
Keyword(s):  
Protective Effect ◽  
Root Surface ◽  
Bonding Agent ◽  
Control Group ◽  
Human Teeth ◽  
Bonding Agents ◽  
Dentin Bonding ◽  
Rectangular Window ◽  
Root Surfaces

Background and objectives: An area on the surface of tooth, apical to CEJ, where root caries are bound to occur undergoes clinically apparent dissolution of the calcified tissues. When dentin bonding agent is applied, it forms finger like resin tags protruding into patent dentin tubules When this resin penetrates the superficially demineralized collagen matrix, it forms a hybrid layerand prevents root surface lesions. Aim: To evaluate the caries protective effect of three recent DBAs on demineralized root surface. Materials and methods: 88 single rooted extracted human teeth were selected, root surfaces apical to CEJ were polished .Acid resistant nail paint wascoated over root surfaces exposing a rectangular window on the buccal surface. Three experimental groups made: Group 1 (XENO V PLUS), Group 2 (TETRIC N BOND), Group 3 (ONE COAT 7 UNIVERSAL). These groups were divided into 2 Subgroups (A and B). Adhesive was applied and light cured with air thinning. Over this second layer of adhesive was applied, light cured with /without air thinning. Each tooth samples were sliced. A light microscope was used to examine the caries like lesions.The statistical analysis was carried out. Results:All control group specimen showed lesions with a mean depth of 177.74μm. Subgroup B results were better than A and C. Summary and Conclusion: Demineralization on root surface can be impeded by DBA tested TetricN Bond which showed maximum cariesprotective effect Key words:Cementum, demineralization, dentine bonding agent

scholarly journals Sealing Ability of Mineral Trioxide Aggregate, Biodentine and Glass Ionomer as Root-End Materials: A Question of Choice

2021 ◽  
Vol 49 (3) ◽  
pp. 232
Author(s):  
Aida Džanković ◽  
Naida Hadžiabdić ◽  
Samra Korać ◽  
Irmina Tahmiščija ◽  
Alma Konjhodžić ◽  
...  
Keyword(s):  
Mineral Trioxide Aggregate ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Dye Penetration ◽  
Anterior Teeth ◽  
Sealing Ability ◽  
Significant Difference ◽  
The Difference

<p class="Default"> </p><p class="Default"><strong><span>Objectives</span></strong><span>. The goal of this study was to determine the sealing ability of MTA, Biodentine, and Fuji IX as root-end materials after ultrasonic retrograde preparation using a dye penetration method. </span></p><p class="Default"><strong><span>Materials and Methods</span></strong><span>. Seventy permanent anterior teeth were used in this study. Root canals were prepared using rotary endodontic files, and obturated using the lateral condensa­tion technique. The resection of the root apices was performed perpendicularly to the long axis, and 3 mm deep retrocavities were made by ultrasonic tips. The samples were randomly divided into three experimental groups (N=20) and two control groups (N=5). The root-end cavities were filled with mineral-trioxide aggregate (Rootdent MTA, TehnoDent, Russia) in Group 1, Biodentine (Septodont, Saint Maur des Fossés, France) in Group 2 and Fuji IX GP (GC Corporation, Tokyo, Japan) in Group 3. The retrocavities of the positive control group were left unfilled, while retrocavities in the negative control group were sealed using a flowable composite material. The samples were made transparent, and dye penetration was assessed under a stereomi­croscope (x10). The data were analyzed with the Kruskal-Wallis test and the Mann-Whitney U-test. </span></p><p class="Default"><strong><span>Results</span></strong><span>. The Biodentine group had a lower mean leakage value than the MTA and Fuji IX groups, and the difference was statistically significant (P&lt;0.01). No statistical difference in apical microleakage was found between the MTA and Fuji IX groups (P&gt;0.05). </span></p><p class="Default"><strong><span>Conclusion</span></strong><span>. Within the limitations of this study, it was concluded that Biodentine provides better sealing ability as a root-end material than MTA and Fuji IX. There was no statistically significant difference between the sealing ability of MTA and Fuji IX as root-end materials.</span></p>

The effect of Dentin Bonding Agent on the Prevention of Tooth Discoloration Induced by CEM cement

2019 ◽  
Vol 15 (1) ◽  
pp. 77-84
Author(s):  
F Ayatollahi ◽  
A Daneshkazemi ◽  
M Tabrizizadeh ◽  
S Mohamadpour ◽  
◽  
...  
Keyword(s):  
Bonding Agent ◽  
Dentin Bonding ◽  
Cem Cement ◽  
Tooth Discoloration ◽  
Dentin Bonding Agent
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