# Effect of shear bond strength in porcelain repair using five different surface treatments - An in-vitro study

**Authors:** Aditya Vitthal Kulkarni, Mahesh Gandhewar, Nageshnath Baliram Waghmare, Ashish Diwakar Meshram, Mohit V Patil, Madhushree Patil

PMC · DOI: 10.6026/973206300211973 · Bioinformation · 2025-07-31

## TL;DR

This study examines how different surface treatments and bonding agents affect the strength of porcelain repairs in dental restorations.

## Contribution

The study identifies optimal combinations of surface treatments and bonding agents for maximizing shear bond strength in porcelain repair.

## Key findings

- Clearfil showed the highest bond strength when used with hydrofluoric acid treatment.
- Shofu performed best with diamond bur + hydrofluoric acid treatment.
- All Bond 2 achieved best results with sandblasting + hydrofluoric acid treatment.

## Abstract

The effect of surface treatments and bonding agents on the shear bond strength of composite resin to fractured metal-ceramic
restorations is evaluated. Sixty Co-Cr discs were treated with diamond bur, sandblasting, hydrofluoric acid (HF), or their combinations
and bonded using Clearfil, Shofu, or All Bond 2. Clearfil showed the highest bond strength, particularly with HF treatment. Shofu
performed best with diamond + HF and All Bond 2 with sandblasting + HF. Thus, surface treatment and bonding agent selection significantly
impact ceramic repair outcomes.

## Linked entities

- **Chemicals:** hydrofluoric acid (PubChem CID 14917)

## Full-text entities

- **Chemicals:** diamond (MESH:D018130), HF (MESH:D006858), Clearfil (-), All Bond 2 (MESH:C100742)

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/PMC12569908/full.md

## References

15 references — full list in the complete paper: https://tomesphere.com/paper/PMC12569908/full.md

---
Source: https://tomesphere.com/paper/PMC12569908