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Comparative Evaluation Of Surface Roughness And Color Stability Of Polyetheretherketone With Conventional Interim Prosthetic Materials: An In Vitro Study.

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Comparative Evaluation Of Surface Roughness And Color Stability Of Polyetheretherketone With Conventional Interim Prosthetic Materials: An In Vitro Study.

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Comparative Evaluation of Surface Roughness and Color Stability of Polyetheretherketone with Conventional Interim

Arya Saraswathy¹, Neethu Latha², Pramodkumar Ayyadanveettil³

¹Department of Prosthodontics, Government Dental College, Calicut Medical College, Kozhikode, Kerala, India, Phone: +91 9495359278, e-mail: draryagdc@gmail.com, Orcid: https://orcid.org/0009-0000-2370-6549.

The Journal of Contemporary Dental Practice

|January 28, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Keywords:

Color stability Interim prosthetic material Polyetheretherketone Profilometer Spectrophotometer Surface roughness.

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Polyetheretherketone (PEEK) demonstrated superior color stability among interim prosthetic materials, though all materials showed clinically acceptable roughness after immersion in various solutions. This research aids in selecting durable interim materials for dental applications.

Area of Science:

Dental Materials Science
Biomaterials Engineering
Prosthodontics

Background:

Interim prosthetic materials are crucial for temporary tooth replacement.
Assessing the long-term stability of these materials under various conditions is essential for clinical success.
Polyetheretherketone (PEEK) is a high-performance polymer with potential applications in dentistry.

Purpose of the Study:

To compare the surface roughness and color stability of PEEK against conventional interim materials.
To evaluate the impact of immersion in solutions with varying pH on these properties.
To provide data for informed selection of interim prosthetic materials.

Main Methods:

An in vitro study involving 320 disc specimens fabricated from four materials: polymethylmethacrylate, bis-acrylic composite, rubberized diurethane, and hot-pressed PEEK.

Baseline measurements of surface roughness and color were taken using a 3D profilometer and UV-Vis spectrophotometer.

Specimens were immersed in distilled water, black coffee, green tea, and Pepsi for 120 days, followed by repeated measurements.

Main Results:

Rubberized diurethane exhibited the highest increase in roughness (ΔRᵃ), while bis-acrylic composite showed the lowest in distilled water.
Polyetheretherketone (PEEK) demonstrated the greatest color stability across most immersion solutions.
Both material type and immersion solution significantly affected color change (ΔE) and roughness.

Conclusions:

Immersion in varying pH solutions significantly impacts the surface roughness and color stability of all tested interim materials.
PEEK is the most color-stable material, except when exposed to green tea.
All tested materials maintained clinically acceptable roughness values post-immersion.