Modern dental care increasingly prioritizes the strength and durability of restorations to prevent debonding. One widely discussed technique is Immediate Dentin Sealing (IDS), a protective layer applied immediately after tooth preparation before indirect restoration placement. Recent research shows that differences in adhesive materials and application techniques can affect the bond strength of lithium disilicate restorations. Notably, not all material–technique combinations produce optimal results, and some even result in the weakest bonds.
Relevant Research
A relevant study conducted by a Faculty of Dentistry UGM student, Viera Ananda Duatri Seantiga, under the supervision of Dr. drg. Raphael Tri Endra Untara, MKes., Sp.KG, Subsp.KR(K) and Prof. drg. Diatri Nari Ratih, MKes., Sp.KG, Subsp.KE(K), Ph.D., entitled “The Effect of Adhesive Type and Application Technique in Immediate Dentin Sealing on the Shear Bond Strength of Lithium Disilicate,” emphasized that:
- The IDS technique protects freshly prepared dentin from saliva, debris, and bacterial contamination, which can otherwise damage dentinal tubules and reduce bond strength.
- Using 8th-generation and universal adhesives (with both total-etch and self-etch techniques), variations in adhesive type and application technique significantly affected the shear bond strength of lithium disilicate restorations on freshly prepared dentin.
Relevance in the Context of Regeneration:
- IDS represents immediate protection and stabilization of exposed dentin, similar to regenerative approaches that aim to utilize optimal biological conditions for healing.
- Proper application of adhesive biomaterials creates a protective “microenvironment” that may facilitate biological processes such as remineralization, odontoblast differentiation, or tissue repair—forming the basis of dentin regeneration concepts.
- Variations in adhesives and IDS techniques that improve bond strength indirectly support tissue integrity, enhance resistance to functional load and damage, and open innovative opportunities for future biomaterials that actively stimulate repair signals.
Implications and Potential for Regenerative Biomaterials
- Inspiration from IDS
IDS highlights the importance of early protection and adhesive use—concepts that can be developed into biomaterials that not only protect but also contain growth factors, bioactive peptides, or remineralizing nanoparticles - Biological Automation Mechanisms
With the development ofcontrolled-releasematerials, future restorations may stimulate pulp cells or odontoblasts to form reparative or even regenerative dentin more efficiently. - Challenges and Further Research
- Selection of biologically compatible and bioactive biomaterials.
- In vitro and in vivo testing of true dentin regenerative capacity.
- Integration of technologies such as biomimetic scaffolds, growth factors, or stem cells as complements to traditional IDS.
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Although the relevant research focuses on biomechanical aspects—namely the effect of IDS techniques on restoration bond strength—the approach reflects a regenerative philosophy centered on maintaining tissue integrity after clinical procedures. The concept of Immediate Dentin Sealing indirectly inspires ideas about biomaterials that stimulate automatic repair signaling, paving the way for further research and practical applications in future dentin regeneration.
References
Viera Ananda Duatri Seantiga, Dr. drg. R Tri Endra Untara, MKes., Sp.KG, Subsp.KR(K), Prof. drg. Diatri Nari Ratih, MKes., Sp.KG, Subsp.KE(K), Ph.D., Pengaruh Jenis dan Teknik Aplikasi Bahan Adhesif pada Immediate Dentin Sealing terhadap Kekuatan Geser Pelekatan Lithium Disilicate, https://etd.repository.ugm.ac.id/penelitian/detail/245110
Author: Rizky B. Hendrawan | Photo: Freepik
