Limits...
Comparative Evaluation of Shear Bond Strength of Three Commercially Available Glass Ionomer Cements in Primary Teeth.

Murthy SS, Murthy GS - J Int Oral Health (2015)

Bottom Line: The predominant failure mode was cohesive.Amalgomer CR exhibited statistically significant higher SBS of 6.38 MPa to primary teeth and has better adhesion to the primary teeth compared to the other test materials and can be considered as a restorative material in pediatric dentistry.However, the results of this study should be corroborated with further investigation to reach a definitive conclusion.

View Article: PubMed Central - PubMed

Affiliation: Professor, Department of Prosthodontics, AJ Institute of Dental Sciences, Mangalore, Karnataka, India.

ABSTRACT

Background: This study aims to comparatively evaluate the shear bond strength (SBS) of three commercially available glass ionomer cements - Miracle Mix (MM) (GC America Inc., Alsip, USA), Ketac Molar (KM) (3M Corp., Minnesota, USA) and amalgomer CR (AM) (Advanced Healthcare Ltd., Kent, England) in primary teeth and later examine the mode of the adhesive failure at the interface.

Materials and methods: Totally, 90 extracted sound primary molars were selected, and dentin on the buccal surface of crowns was exposed. Specimens were randomly assigned into three groups according to the restorative materials being tested. SBS tests were performed, and the obtained values were statistically analyzed using ANOVA and Tukey tests (P < 0.05). SBS mean values on were recorded in megapascals (MPa) and the mode of failure was assessed using a scanning electron microscope.

Results: SBS (in MPa) was - MM-5.39, KM-4.84, AM-6.38. The predominant failure mode was cohesive.

Conclusion: Amalgomer CR exhibited statistically significant higher SBS of 6.38 MPa to primary teeth and has better adhesion to the primary teeth compared to the other test materials and can be considered as a restorative material in pediatric dentistry. However, the results of this study should be corroborated with further investigation to reach a definitive conclusion.

No MeSH data available.


Related in: MedlinePlus

Adhesive fracture
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4588773&req=5

Figure 5: Adhesive fracture

Mentions: The SBS of Miracle Mix ranged from 3.62 MPa to 7.32 MPa with a mean of 5.39 MPa, of Ketac Molar ranged from 2.80 MPa to 6.46 MPa with a mean of 4.84 MPa and amalgomer CR ranged from 4.72 MPa to 8.37 MPa with a mean of 6.38 MPa (Graph 1 and Table 1). Three types of fractures were recorded - Adhesive fracture (Figure 4), cohesive fracture (Figure 5) and mixed type of fracture (Graph 2 and Table 2). The Chi-square statistic (Pearson’s Chi-square) revealed that there was no significant association between the failures and the groups (P = 0.347).


Comparative Evaluation of Shear Bond Strength of Three Commercially Available Glass Ionomer Cements in Primary Teeth.

Murthy SS, Murthy GS - J Int Oral Health (2015)

Adhesive fracture
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4588773&req=5

Figure 5: Adhesive fracture
Mentions: The SBS of Miracle Mix ranged from 3.62 MPa to 7.32 MPa with a mean of 5.39 MPa, of Ketac Molar ranged from 2.80 MPa to 6.46 MPa with a mean of 4.84 MPa and amalgomer CR ranged from 4.72 MPa to 8.37 MPa with a mean of 6.38 MPa (Graph 1 and Table 1). Three types of fractures were recorded - Adhesive fracture (Figure 4), cohesive fracture (Figure 5) and mixed type of fracture (Graph 2 and Table 2). The Chi-square statistic (Pearson’s Chi-square) revealed that there was no significant association between the failures and the groups (P = 0.347).

Bottom Line: The predominant failure mode was cohesive.Amalgomer CR exhibited statistically significant higher SBS of 6.38 MPa to primary teeth and has better adhesion to the primary teeth compared to the other test materials and can be considered as a restorative material in pediatric dentistry.However, the results of this study should be corroborated with further investigation to reach a definitive conclusion.

View Article: PubMed Central - PubMed

Affiliation: Professor, Department of Prosthodontics, AJ Institute of Dental Sciences, Mangalore, Karnataka, India.

ABSTRACT

Background: This study aims to comparatively evaluate the shear bond strength (SBS) of three commercially available glass ionomer cements - Miracle Mix (MM) (GC America Inc., Alsip, USA), Ketac Molar (KM) (3M Corp., Minnesota, USA) and amalgomer CR (AM) (Advanced Healthcare Ltd., Kent, England) in primary teeth and later examine the mode of the adhesive failure at the interface.

Materials and methods: Totally, 90 extracted sound primary molars were selected, and dentin on the buccal surface of crowns was exposed. Specimens were randomly assigned into three groups according to the restorative materials being tested. SBS tests were performed, and the obtained values were statistically analyzed using ANOVA and Tukey tests (P < 0.05). SBS mean values on were recorded in megapascals (MPa) and the mode of failure was assessed using a scanning electron microscope.

Results: SBS (in MPa) was - MM-5.39, KM-4.84, AM-6.38. The predominant failure mode was cohesive.

Conclusion: Amalgomer CR exhibited statistically significant higher SBS of 6.38 MPa to primary teeth and has better adhesion to the primary teeth compared to the other test materials and can be considered as a restorative material in pediatric dentistry. However, the results of this study should be corroborated with further investigation to reach a definitive conclusion.

No MeSH data available.


Related in: MedlinePlus