Evaluation and comparison of different polymerization techniques, curing cycles, and thicknesses of two denture base materials

Palaskar, Jayant; Singh, Sunint; Mittal, Sanjeev

doi:10.4103/ijdr.ijdr_170_16

Cited by 7 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A positive mucosal contact helps to maintain the integrity of the peripheral border seal, enhances retention, reduces gagging tendencies, and permits thinning of the posterior border, which makes it less noticeable to the tongue. [ 11 ] Experiments have been described to demonstrate that no perceptible displacement occurs in an anteroposterior direction in the mandibular denture base during processing. A very definite forward tooth shift was consistently observed in maxillary dentures.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Distortion in the Posterior Palatal Seal Area of Maxillary Cast by Different Adaptation Techniques of Denture Bases

Singh

Saurabh²,

Vaidya

et al. 2023

Journal of Pharmacy and Bioallied Sciences

View full text Add to dashboard Cite

Aim: To evaluate and compare the amount of distortion in the posterior palatal seal area in V-shaped and U-shaped palatal form of maxillary cast by different adaptation techniques of maxillary denture bases. Materials and Methods: A total of 60 stone casts were made, out of which 30 identical stone casts of U-shaped palatal form and 30 identical stone casts of V-shaped palatal form of maxillary casts were prepared. The 30 stone casts of U-shaped palatal form and 30 stone casts of V-shaped palatal forms were divided into three groups for measurements to be done. Data were statistically analyzed by using two-way analysis of variance (ANOVA) without replication. Results: Discrepancies of fit of dentures on U-shaped casts and V-shaped casts of Groups 1, 2, and 3 in transverse and sagittal sections were measured, and comparative statistical analysis between Group 1&2, Group 1&3, and Group 2&3 was done for statistical significant values. Conclusion: Discrepancy in the central region was maximum, and the anchoring methods Group 2 and Group 3 produced a significantly better adaptation than the conventional method (Group 1). The adaptations for V-shaped palate were better when compared with U-shaped palate in the central region.

show abstract

Section: Discussionmentioning

confidence: 99%

Evaluation of Distortion in the Posterior Palatal Seal Area of Maxillary Cast by Different Adaptation Techniques of Denture Bases

Singh

Saurabh²,

Vaidya

et al. 2023

Journal of Pharmacy and Bioallied Sciences

View full text Add to dashboard Cite

show abstract

“…Strategies for toughening denture bases min. Microwave energy was used for practical reasons in this study, and has demonstrated similar results to conventional denture processing (21,22). Resulting bar samples were deflasked after flask cooling at room temperature, and finished with acrylic resin finishing and polishing stones and sandpapers with decreasing abrasiveness.…”

Section: Sample Preparationmentioning

confidence: 99%

Strategies for Potential Toughening of Acrylic Denture Bases Polymerized With Microwave Energy

Paula

Fugolin²,

Pfeifer³

2020

Braz. Dent. J.

View full text Add to dashboard Cite

Thiourethane additives have been shown to improve properties in several dental polymer applications. The aim of this study was to verify the effect of the addition of thiourethane oligomers and acrylamide or isobornyl-based plasticizers on the physical properties of the denture base acrylic resin polymerized with microwaves. Thiourethane oligomer (TU) was synthetized and added to microwaved acrylic resin in proportions varying between 3 and 14 wt%. Separate experimental groups included the addition of dimethyl acrylamide (DMAM) and isobornyl methacrylate as plasticizers, at concentrations varying from 5 to 20 wt%. Samples were polymerized using microwave energy at 500 Watts for 3 min, deflasked at room temperature, stored in water at 37 °C for 24 h, and evaluated for: linear dimensional change, gloss, Knoop hardness, surface roughness, impact strength, yield strength, elastic modulus, toughness, yield strength, viscosity, glass transition temperature and network heterogeneity, and water sorption/solubility. Data were analyzed with ANOVA/Tukey’s post-hoc test (a=5%). The addition of TU led to properties that were similar or worse than the materials to which it was not added, except for dimensional stability. The impact on properties was statistically significant for all materials above 20% addition of TU. The addition of DMAM at 5 wt% or isobornyl methacrylate at 10 wt% improved yield strength and modulus, but increased water sorption and solubility. Except for dimensional stability, the addition of thiourethane oligomers to acrylic denture base materials compromised most tested properties. The use of DMAM and isobornyl methacrylate improved properties for selected compositions.

show abstract

Conventional and digital maxillary occlusal record for the manufacture of complete-arch implant-supported fixed prostheses: randomized controlled clinical trial

Pereira,

Campos,

Torres

et al. 2024

Clin Oral Invest

View full text Add to dashboard Cite

Evaluation and comparison of different polymerization techniques, curing cycles, and thicknesses of two denture base materials

Cited by 7 publications

References 9 publications

Evaluation of Distortion in the Posterior Palatal Seal Area of Maxillary Cast by Different Adaptation Techniques of Denture Bases

Evaluation of Distortion in the Posterior Palatal Seal Area of Maxillary Cast by Different Adaptation Techniques of Denture Bases

Strategies for Potential Toughening of Acrylic Denture Bases Polymerized With Microwave Energy

Conventional and digital maxillary occlusal record for the manufacture of complete-arch implant-supported fixed prostheses: randomized controlled clinical trial

Contact Info

Product

Resources

About