Complete denture wearing and fractures among edentulous patients treated in university clinics

Abstract

Complete denture wearing and fractures among edentulous patients treated in university clinicsObjective: The prevalence of wearing and fracture of complete dentures was evaluated among edentulous patients treated in two dental schools in Brazil. Background: Acceptance and wearing of complete dentures are related to adaptive behaviour of edentulous patients. However, one reason that could interfere with the wearing dentures is their potential to fracture, which is still a common complication in denture rehabilitation practice. Results: Almost 26% of the patients did not wear their dentures, and among the remainder, the majority wore the maxillary denture. About 30% of the dentures were fractured, with higher prevalence in the maxillary arch (p = 0.003). Conclusions: Discontinuation of wearing dentures was quite high, especially considering the treatment which was carried out in university clinics. Prevalence of fractures was also high, greater for the maxillary denture, and was one of the main reasons for non-wearing of complete dentures.

Effect of Antibacterial Silver-Releasing Filler on the Physicochemical Properties of Poly(Methyl Methacrylate) Denture Base Material

“…The denture fracture may result from flexural forces due to, for example, the improper fabrication, poor fit or lack of balanced occlusion [40]. Moreover, most PMMA partial or complete dentures are removable; thus, their resistance to shock-induced fractures, represented by impact strength, is no less important due to the possibility of their falling or being damaged during the action of violent forces caused by other events [41]. Between 39.5% and 56% of fractures occur as a result of the fall of dentures [41,42].…”

“…Moreover, most PMMA partial or complete dentures are removable; thus, their resistance to shock-induced fractures, represented by impact strength, is no less important due to the possibility of their falling or being damaged during the action of violent forces caused by other events [41]. Between 39.5% and 56% of fractures occur as a result of the fall of dentures [41,42]. Other material properties that affect the durability of PMMA dentures are their hardness and wear resistance which determine the surface conditions of prosthetic materials [43,44].…”

Mechanical strength evaluation of poly(methyl methacrylate) reinforced with long glass, carbon and aramid fibers

“…They include limited resistance to mechanical damage related to low elasticity and changes in volume and shape during the production and use of dentures made thereof [1,2]. Searching for methods to increase acrylic strength showed that it's caused by a high percentage of cracks and breaks of RPD [3][4][5]. Statistic surveys show the necessity to repair 30-50 % of dentures used by patients [6].…”

“…The determined parameters allowed the specification of PMMA ability to resist deforming occlusion forces, similarly as in patients using the upper denture during chewing [1,[3][4][5].…”

Influence of Different Repair Acrylic Resin and Thermocycling on the Flexural Strength of Denture Base Resin

“…The cracking and fracturing of denture bases is still an unresolved clinical complication in dental practice. It is the primary cause of the failure of the removable prosthesis [3]. Denture base fracture is primarily attributed to poor mechanical properties like low impact strength and reduced fatigue resistance [4].…”