A Comparitive Study on the Tensile Bond Strength of Conventional Denture Base Resin to Cross Linked Acrylic Tooth Using two Different Curing Cycles: An Invitro Study

Mohamed, Raza; Noufal, P K; Shenoy, Deepa; Reddy, P. Sesha; Varma, Acu.; Jain, Ashish

doi:10.13005/bpj/1128

Cited by 4 publications

(3 citation statements)

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“…From the results of shear bond strength test Fig. (7) the addition of MgO Nano-filler to heat cure acrylic affected increased a value of shear bond strength compared to the group1. Group3 had the highest shear bond strength and group1 had the lowest shear bond strength.…”

Section: Discussionmentioning

confidence: 92%

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Shear Bond Strength of Acrylic Denture Teeth to Different Pmma/Mgo % Reinforcing Nanofillers

Ameen ALwash,

Nafea Yaseen,

Abdul Latif Rashid

2024

MDJ

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Aim of the study: The objective of this study was to evaluate the shear bond strength of acrylic denture teeth to different PMMA/MgO % (2%, 4%, and 6%) reinforcing nanofillers Materials and method: 40 specimens of heat cure acrylic resin (PMMA) were prepared and divided into four groups 10 specimens for each group as follows; Control Group (Group1) without MgO nano filler particles; Group (2) with 2% by weight of MgO; Group (3) with 4% by weight of MgO and Group (4) with 6% by weight of MgO. Wax pattern sample which used for acrylic cylindrical shape fabrication were (25 mm in length and 5mm in diameter, the base of the cylinder which is 5mm in thickness and 8mm in length). Shear bond strength of all specimens was evaluated. Results: Showed in the PMMA+MgO 4% showed the maximum mean value of upper bound of shear bond strength which was equaled to (14.859) while the control group PMMA recorded the minimum value of lower bound of shear bond strength (8.190). Conclusion: There was no significant difference between control group PMMA and (PMMA+MgO 2%, PMMA+MgO 6%), but there was a significant difference between PMMA+Mgo4% compared with control group PMMA.

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Section: Discussionmentioning

confidence: 92%

“…There was no significant difference between group1 and (group2, group4), but there was a significant difference between group3 compared with group1.Bar chart of the shear bond strength test for all groups was showed in Fig. (7).…”

Section: Strusermentioning

confidence: 88%

Shear Bond Strength of Acrylic Denture Teeth to Different Pmma/Mgo % Reinforcing Nanofillers

Ameen ALwash,

Nafea Yaseen,

Abdul Latif Rashid

2024

MDJ

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“…Strength of teeth bonding to different resin is different, with acrylic resin provides the greater bond strength with the artificial teeth, it can be attributed to better monomer release at the junction and an increase in temperature of the polymerization and the type of tooth [63] . Noufal et al 2017 [64] investigated the effect of increasing the temperature by autoclave on shear bond strength of artificial teeth and concluded that autoclaving polymerization can be an effective alternative to denture resin processing. Cardash et al 1990 [52] observed that high impact heat cured denture base resin offered a higher bond strength than conventional resin.…”

Section: Discussionmentioning

confidence: 99%

Effect of disinfection on shear bond strength between heat activated acrylic resin denture base and commercially available denture teeth: An in vitro study

Nazar¹,

Nair²,

K³

et al. 2022

Int. J. Appl. Dent. Sci.

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Background and Objectives: Acrylic resin had a long history of been used in the fabrication of denture fabrication since they exhibit a better chemical bond between teeth and denture base. With increasing use of dentures, detachment of teeth from dentures also increased proportionally. Denture disinfection is an essential procedure for maintaining good hygiene of the denture. The aim of the study is to evaluate the effect of disinfection on shear bond strength between denture teeth and heat activated denture base. Objectives 1. To evaluate the shear bond strength between heat activated acrylic resin denture base and denture teeth measured using a universal testing machine (Instron) expressed in MPa. 2. To analyse the bonding failure between the denture tooth and heat activated acrylic resin interface using a stereomicroscope at 25 X magnification. Methodology: Two commercial brands of denture teeth (Acryrock and Ivostar) and heat activated acrylic resin denture base were tested. There were 12 subgroups in the study. Each brand of denture teeth was divided into six subgroups comprising of five experimental subgroups and one control group. In subgroup A1B1 and A2B2 (chemical disinfection) the specimens were immersed in 4% of chlorhexidine and sodium perborate monohydrate solution for 15 minutes daily for 19 days respectively, Subgroup A3B3 specimens (mechanical disinfection) were subjected to mechanical disinfection for 14 hours and in Subgroup A4B4 and A5B5 specimens were subjected to mechanical disinfection for 14 hours followed by disinfection with 4% chlorhexidine solution and sodium perborate monohydrate solution for 15 minutes daily for 19 days respectively. In Control group A6B6 specimens were immersed in distilled water at 37degree Celsius for 19 days. Shear bond strength testing was performed at denture tooth resin interface in a universal testing machine at a cross head speed of 1mm/minute. Bond strength failure rates were quantified and classified as adhesive, cohesive or mixed. Data were analyzed by independent t test and chi-square test. Results: In subgroupA1B1 and subgroupA2B2, (chemical disinfection) the specimens immersed in 4% of chlorhexidine (p=0.615) and sodium perborate monohydrate (p=0.615), for 19 days respectively, subgroup A3B3 (mechanical disinfection) specimens were subjected to mechanical disinfection for 14 hours (p<0.01), subgroup A4B4 and A5B5 (mechanical-chemical disinfection) (p<0.01) and (p<0.01) respectively, subgroup A6B6 (control group) (p=0.054). For bond failure analysis where p value for subgroup A1B1 is 0.856, p value for subgroup A2B2 is 1.000, P value for subgroup A3B3 is 1.000, p value for subgroup A4B4 is 0.670, p value for subgroup A5B5 is 0.670, p values for subgroup A6B6 0.856. Disinfection with 4% chlorhexidine solution exhibited mixed pattern of bond failure while sodium perborate monohydrate solution demonstrated both mixed and adhesive type of bond failure. Mechanical disinfection and Combination of mechanical and chemical disinfection exhibited adhesive type of ...

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Bonding Efficiency between Artificial Teeth and Denture Base in CAD/CAM and Conventional Complete Removable Dentures

Dimitrova,

Vlahova,

Hristov

et al. 2024

Materials

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A common challenge encountered with both traditional and digitally produced dentures involves the extraction of artificial teeth from the denture base. This narrative review seeks to present an updated perspective on the adherence of synthetic teeth for denture base materials, employing diverse methods. Dental technicians often employ chemical approaches and mechanical techniques (including abrasion, laser treatment, and abrasive blasting) to augment the retention of denture teeth. However, the efficacy of these treatments remains uncertain. In certain instances, specific combinations of Denture Base Resin (DBR) materials and artificial teeth exhibit improved performance in conventional heat-cured dentures following these treatments. The primary reasons for failure are attributed to material incompatibility and inadequate copolymerization. As new denture fabrication techniques and materials continue to emerge, further research is imperative to identify optimal tooth-DBR combinations. Notably, 3D-printed tooth–DBR combinations have demonstrated reduced bond strength and less favorable failure patterns, while utilizing milled and traditional combinations appears to be a more prudent choice until advancements in additive manufacturing enhance the reliability of 3D-printing methods.

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A Comparitive Study on the Tensile Bond Strength of Conventional Denture Base Resin to Cross Linked Acrylic Tooth Using two Different Curing Cycles: An Invitro Study

Cited by 4 publications

References 0 publications

Shear Bond Strength of Acrylic Denture Teeth to Different Pmma/Mgo % Reinforcing Nanofillers

Shear Bond Strength of Acrylic Denture Teeth to Different Pmma/Mgo % Reinforcing Nanofillers

Effect of disinfection on shear bond strength between heat activated acrylic resin denture base and commercially available denture teeth: An in vitro study

Bonding Efficiency between Artificial Teeth and Denture Base in CAD/CAM and Conventional Complete Removable Dentures

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