Year: 2025
Type: article
Study design: Clinical Trial
Abstract: Purpose To compare masticatory function and patient satisfaction with removable partial dentures (RPDs) with cobalt‐chromium (Co‐Cr) and injected polyetheretherketone (PEEK) frameworks, respectively. Materials and Methods Twelve volunteers (7 women, 5 men; mean age, 56.6 years) with complete maxillary edentulism and partial mandibular edentulism (Kennedy Class I) first received new RPDs with PEEK (experimental group) or Co‐Cr (control group) frameworks and used them for 2 months. Masticatory performance (MP) was evaluated using sieves and Optocal, with results expressed as the mean particle size (X50); maximum bite force (MBF) was measured with a force transducer and pressure sensors; and self‐reported satisfaction was assessed using a visual analog scale. After the initial evaluation, a 1‐week washout period was followed by group crossover and reassessment after an additional 2 months. Data were analyzed using independent‐samples t‐tests (α = 5%). Results X50 values were lower for RPDs with Co‐Cr frameworks than for those with PEEK frameworks (p = 0.007), indicating better MP. The MBF did not differ significantly between RPD framework types. Participants’ satisfaction, in terms of prosthesis stability (p = 0.02) and chewing ability (p < 0.001), was greater for Co‐Cr RPDs. Most participants preferred to continue using Co‐Cr frameworks. Conclusions RPDs with injected PEEK frameworks were associated with reduced MP and patient satisfaction relative to Co‐Cr frameworks.
Source: Journal of Prosthodontics
DOI: 10.1111/jopr.14039
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: bronze
Awards: G2303732607, G6438247056
OpenAlex ID: W4407280156