Dimensional stability of denture bases following repair with microwave resin

Effect of microwave disinfection on denture base adaptation and resin surface roughness

“…In a previous study, microwave disinfection at 500W for 3 and 15 min did not promote clinically relevant linear alteration, but the test specimens were resin rectangles and not denture bases (1). On the other hand, other authors (16) reported that all denture bases polymerized by conventional water bath or microwave energy exhibited significant distortion after repair with microwavecured acrylic resin at 500 W for 3 min.…”

Effect of microwave disinfection on denture base adaptation and resin surface roughness

“…In a previous study, microwave disinfection at 500W for 3 and 15 min did not promote clinically relevant linear alteration, but the test specimens were resin rectangles and not denture bases (1). On the other hand, other authors (16) reported that all denture bases polymerized by conventional water bath or microwave energy exhibited significant distortion after repair with microwavecured acrylic resin at 500 W for 3 min.…”

Comparison on the Transverse Strength of Heat Cure Polymethylmethacrylate Denture Base Resin Repaired with Different Surface Treatments and Surface Design Modifications

“…Alteration of molecular forces within each fragment results in distortion of the fractured sections, which often causes diffi culty in reassembling the broken fragments. 8,9 To gain optimum strength for repairs, it is essential that a good bond exists between these two types of acrylic resin. The fundamental diff erence between the heat processed denture base resin and autopolymerizing acrylic resin is the method by which benzoyl peroxide is decomposed to yield free radicals.…”

An Evaluation on the Flexural Strength of Heat Cure Polymethyl methacrylate Denture Base Resin with and without Reinforcement of Polyethylene Fiber

“…13 Although various materials and methods have been proposed for repairing fractured denture bases, repairing with auto polymerized resin is much weaker (approximately 60% to 65% of the original material 14 than the originally used heat polymerized denture resin. 15 Doubling the thickness of the denture was one of the early attempts to increase the strength of acrylic dentures. 16 Recently, much attention has been directed towards the addition of various types of fi bers like carbon fi ber 17,18 polyethylene fi ber 19,20 and glass fi ber 21,22 to acrylic resins in an attempt to improve its mechanical properties.…”

Effect of microwave disinfection on denture base adaptation and resin surface roughness

“…In a previous study, microwave disinfection at 500W for 3 and 15 min did not promote clinically relevant linear alteration, but the test specimens were resin rectangles and not denture bases (1). On the other hand, other authors (16) reported that all denture bases polymerized by conventional water bath or microwave energy exhibited significant distortion after repair with microwavecured acrylic resin at 500 W for 3 min.…”

Comparison on the Transverse Strength of Heat Cure Polymethylmethacrylate Denture Base Resin Repaired with Different Surface Treatments and Surface Design Modifications

“…Alteration of molecular forces within each fragment results in distortion of the fractured sections, which often causes diffi culty in reassembling the broken fragments. 8,9 To gain optimum strength for repairs, it is essential that a good bond exists between these two types of acrylic resin. The fundamental diff erence between the heat processed denture base resin and autopolymerizing acrylic resin is the method by which benzoyl peroxide is decomposed to yield free radicals.…”

An Evaluation on the Flexural Strength of Heat Cure Polymethyl methacrylate Denture Base Resin with and without Reinforcement of Polyethylene Fiber

“…13 Although various materials and methods have been proposed for repairing fractured denture bases, repairing with auto polymerized resin is much weaker (approximately 60% to 65% of the original material 14 than the originally used heat polymerized denture resin. 15 Doubling the thickness of the denture was one of the early attempts to increase the strength of acrylic dentures. 16 Recently, much attention has been directed towards the addition of various types of fi bers like carbon fi ber 17,18 polyethylene fi ber 19,20 and glass fi ber 21,22 to acrylic resins in an attempt to improve its mechanical properties.…”

Effect of microwave disinfection on denture base adaptation and resin surface roughness

“…In a previous study, microwave disinfection at 500W for 3 and 15 min did not promote clinically relevant linear alteration, but the test specimens were resin rectangles and not denture bases (1). On the other hand, other authors (16) reported that all denture bases polymerized by conventional water bath or microwave energy exhibited significant distortion after repair with microwavecured acrylic resin at 500 W for 3 min.…”

Comparison on the Transverse Strength of Heat Cure Polymethylmethacrylate Denture Base Resin Repaired with Different Surface Treatments and Surface Design Modifications

“…Alteration of molecular forces within each fragment results in distortion of the fractured sections, which often causes diffi culty in reassembling the broken fragments. 8,9 To gain optimum strength for repairs, it is essential that a good bond exists between these two types of acrylic resin. The fundamental diff erence between the heat processed denture base resin and autopolymerizing acrylic resin is the method by which benzoyl peroxide is decomposed to yield free radicals.…”

An Evaluation on the Flexural Strength of Heat Cure Polymethyl methacrylate Denture Base Resin with and without Reinforcement of Polyethylene Fiber

“…13 Although various materials and methods have been proposed for repairing fractured denture bases, repairing with auto polymerized resin is much weaker (approximately 60% to 65% of the original material 14 than the originally used heat polymerized denture resin. 15 Doubling the thickness of the denture was one of the early attempts to increase the strength of acrylic dentures. 16 Recently, much attention has been directed towards the addition of various types of fi bers like carbon fi ber 17,18 polyethylene fi ber 19,20 and glass fi ber 21,22 to acrylic resins in an attempt to improve its mechanical properties.…”