Research Article

Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers

Volume: 6 Number: 1 April 30, 2026

Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers

Abstract

Background: Fracture resistance at the interface between the tooth substrate and adhesive systems is a key determinant of the clinical durability of direct composite veneer restorations. Evaluating the influence of different preparation strategies and universal adhesive systems on fracture resistance is essential for improving the predictability of clinical outcomes.

Materials and Methods: Forty extracted maxillary incisors were randomly allocated into two groups according to the preparation technique: no preparation and minimal preparation. Each group was further subdivided based on the adhesive system used: Single Bond Universal or Prime & Bond Universal. Direct composite laminate veneers were fabricated for all specimens, which were subsequently embedded in acrylic resin blocks. Fracture resistance was measured. Failure patterns were classified as adhesive, cohesive, or mixed. Data were analyzed using one-way ANOVA followed by Tukey’s HSD post hoc test (α=0.05).

Results: The lowest bond strength values were observed in the Single Bond Universal no-preparation (SBN) group, whereas the highest values were recorded in the Prime & Bond Universal minimal-preparation (PBM) group. There was no significant statistical difference identified among the groups (p>0.05).

Conclusions: Both universal adhesive systems demonstrated clinically acceptable fracture resistance regardless of the preparation technique. Proper treatment planning may contribute to long-term functional and aesthetic success in direct composite veneer restorations.

Keywords

Ethical Statement

Approval for the study was granted by the Ethics Committee of the Dentistry Faculty of Dicle University (decision no: 2020/43, dated:25.11.2020).

References

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Details

Primary Language

English

Subjects

Dental Materials and Equipment, Restorative Dentistry

Journal Section

Research Article

Early Pub Date

April 30, 2026

Publication Date

April 30, 2026

Submission Date

March 13, 2026

Acceptance Date

March 25, 2026

Published in Issue

Year 2026 Volume: 6 Number: 1

APA
Cangül, S., Adıgüzel, Ö., Evran, B., Günay, A., Sonkaya, E., & Taşyürek, M. (2026). Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers. HRU International Journal of Dentistry and Oral Research, 6(1), 20-31. https://doi.org/10.61139/ijdor.1908133
AMA
1.Cangül S, Adıgüzel Ö, Evran B, Günay A, Sonkaya E, Taşyürek M. Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers. HRU Int J Dent Oral Res. 2026;6(1):20-31. doi:10.61139/ijdor.1908133
Chicago
Cangül, Suzan, Özkan Adıgüzel, Begüm Evran, Ayşe Günay, Ezgi Sonkaya, and Makbule Taşyürek. 2026. “Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers”. HRU International Journal of Dentistry and Oral Research 6 (1): 20-31. https://doi.org/10.61139/ijdor.1908133.
EndNote
Cangül S, Adıgüzel Ö, Evran B, Günay A, Sonkaya E, Taşyürek M (April 1, 2026) Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers. HRU International Journal of Dentistry and Oral Research 6 1 20–31.
IEEE
[1]S. Cangül, Ö. Adıgüzel, B. Evran, A. Günay, E. Sonkaya, and M. Taşyürek, “Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers”, HRU Int J Dent Oral Res, vol. 6, no. 1, pp. 20–31, Apr. 2026, doi: 10.61139/ijdor.1908133.
ISNAD
Cangül, Suzan - Adıgüzel, Özkan - Evran, Begüm - Günay, Ayşe - Sonkaya, Ezgi - Taşyürek, Makbule. “Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers”. HRU International Journal of Dentistry and Oral Research 6/1 (April 1, 2026): 20-31. https://doi.org/10.61139/ijdor.1908133.
JAMA
1.Cangül S, Adıgüzel Ö, Evran B, Günay A, Sonkaya E, Taşyürek M. Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers. HRU Int J Dent Oral Res. 2026;6:20–31.
MLA
Cangül, Suzan, et al. “Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers”. HRU International Journal of Dentistry and Oral Research, vol. 6, no. 1, Apr. 2026, pp. 20-31, doi:10.61139/ijdor.1908133.
Vancouver
1.Suzan Cangül, Özkan Adıgüzel, Begüm Evran, Ayşe Günay, Ezgi Sonkaya, Makbule Taşyürek. Effect of Minimal and Non-Preparation Techniques and Universal Adhesive Systems on the Fracture Resistance of Direct Composite Veneers. HRU Int J Dent Oral Res. 2026 Apr. 1;6(1):20-31. doi:10.61139/ijdor.1908133