Title
Effect of surface treatment on tensile bond strength between polyvinyl siloxane and custom trays: An in vitro study
Authors
Burada Naga Prathibha*, Manne Prakash, Surapaneni Hara Gopal, Bharat Joshi, Checka Mounika & Konapala Durga Prasad
Affiliation
Department of Prosthodontics and Crown and Bridge, Sibar Institute of Dental sciences, Takkellapadu, Guntur, Andra Pradesh, India; *Corresponding author
Burada Naga Prathibha - E-mail:
nagaprathibha123@gmail.com
Manne Prakash - E-mail: manneprakas@gmail.com
Surapaneni HaraGopal - E-mail: haragopal.surapaneni@gmail.com
Bharat Joshi - E-mail: bj666616@gmail.com
Checka Mounika - E-mail: checkamounika@gmail.com
Konapala Durga Prasad - E-mail: drprasadk28@gmail.comr
Article Type
Research Article
Date
Received September 1, 2025; Revised September 30, 2025; Accepted September 30, 2025, Published September 30, 2025
Abstract
Dental impressions are important for prosthodontics as they impact the quality of the final prosthesis with accuracy and fit. Therefore, it is of interest to evaluate the tensile bond strength of polyvinyl siloxane (PVS) impression material with two different custom tray materials, visible light-cured (VLC) resin and 3D-printed custom trays, with and without sandblasting. A total of 80 custom trays (40 VLC resin and 40 3D-printed) were constructed. The 80 trays were divided into sandblasted and non-sandblasted subgroups and tensile bond strength testing was performed on each using a Universal Testing Machine. Testing revealed that sandblasted VLC trays had much higher bond strength than sandblasted 3D-printed custom trays, while the non-sandblasted 3D-printed custom trays had greater bond strength than non-sandblasted VLC trays. Thus, we show an emphasis on the need for surface treatment and being selective when choosing a material when developing a custom tray to be used with an elastomeric impression material.
Keywords
Dental impression, elastomeric impression material, poly vinyl siloxane, 3D-printed trays, custom trays, tensile bond strength in prosthodontics
Citation
Prathibha et al. Bioinformation 21(9): 3407-3412 (2025)
Edited by
A Prashanth
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
