Applications of collagen extrafibrillar demineralization in dentin bonding.
10.3760/cma.j.cn112144-20220919-00494
- VernacularTitle:选择性胶原纤维外脱矿技术在牙本质粘接修复中的应用
- Author:
Meng Meng WANG
1
;
Ying Ying YU
1
;
Wei JIN
1
;
Peng MA
1
;
Ya Ping GOU
1
Author Information
1. Department of Endodontics, School and Hospital of Stomatology, Lanzhou University & Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, Lanzhou 730000, China.
- Publication Type:Review
- MeSH:
Humans;
Collagen;
Dental Bonding;
Dentin/chemistry*;
Dentin-Bonding Agents/chemistry*;
Materials Testing;
Minerals;
Resin Cements/chemistry*;
Tooth Demineralization
- From:
Chinese Journal of Stomatology
2023;58(1):81-85
- CountryChina
- Language:Chinese
-
Abstract:
The existing dentin bonding systems based on acid-etching technique lead to the loss of both extrafibrillar and intrafibrillar minerals from dentin collagen, causing excessive demineralization. Because resin monomers can not infiltrate the intrafibrillar spaces of demineralized collagen matrix, degradation of exposed collagen and resin hydrolysis subsequently occur within the hybrid layer, which seriously jeopardizing the longevity of resin-dentin bonding. Collagen extrafibrillar demineralization can effectively avoid the structural defects within the resin-dentin interface caused by acid-etching technique and improve the durability of resin-dentin bonding, by preserving intrafibrillar minerals and selectively demineralizing extrafibrillar dentin. The mechanism and research progress of collagen extrafibrillar demineralization in dentin bonding are reviewed in the paper.
