Title

Fracture resistance of direct versus CAD-CAM PMMA provisional restorations: An in vitro study

Authors

Varsha Mangtani¹*, Subhash Sonkesriya¹, Alka Gupta¹, Harsh Chansoria¹, Anuja Tripathi¹ & Shivani Gupta²

Affiliation

¹Department of Prosthodontics and Crown & Bridge, Government College of Dentistry, Indore, Madhya Pradesh, India; ²Department of Orthodontics and Dentofacial Orthopaedics, Sri Dharmasthala Manjunatheshwara College of Dental Sciences, Dharwad, Karnataka, India; *Corresponding author

Email

Varsha Mangtani - E-mail: mangtanivarsha02@gmail.com
Subhash Sonkesriya - E-mail: drsubhashsonkesriya1978@gmail.com
Alka Gupta - E-mail: dr.alka2000@gmail.com
Harsh Chansoria - E-mail: harsh.chansoria@gmail.com
Anuja Tripathi - E-mail: tripathianuja029@gmail.com
Shivani Gupta - E-mail: shivani2231.g@gmail.com

Article Type

Research Article

Date

Received September 1, 2025; Revised September 30, 2025; Accepted September 30, 2025, Published September 30, 2025

Abstract

The fracture resistance of polymethyl methacrylate (PMMA)-based provisional crowns fabricated using two techniques: conventional direct and Computer-Aided Design/Computer-Aided Manufacturing (CAD-CAM) milling is of interest to dentist. Hence, sixty extracted premolar teeth were restored and tested under simulated occlusal forces. Data showed that CAD-CAM milled restorations exhibited significantly higher fracture resistance than conventionally fabricated crowns. The study shows the mechanical superiority and clinical reliability of CAD-CAM technology. Thus, we show support its use for improved provisional restoration outcomes.

Keywords

CAD-CAM, fracture resistance, PMMA, provisional restoration, temporary crowns

Citation

Mangtani et al. Bioinformation 21(9): 3395-3400 (2025)

Edited by

Ritik Kashwani

ISSN

0973-2063

Publisher

Biomedical Informatics

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.