ボンディング材の象牙質接着性におよぼす象牙質前処理剤の効果 : ハイドロキシアパタイトとの接着状態の観察

概要

論文の詳細を見る
Recently, there has been a trend towards judicious etching of the dentin surface for the purpose of providing a strong bond to dentin via removal of the smear layer and without opening of the tuble oriffices. And then, the dentin surface is pretreated with primers before application of bonding agent to increase the chemical retention. The clinical procedures of these third generation dentin bonding systems are complicated and the results are varied in many studies. The purpose of this study is to evaluate the effect of various primers and bonding agent of commercial dentin bonding systems on dentin adhesion, with SEM observation of bonding aspect of bonding agent to hydroxyapatite particles. Primers and bonding agents of the corresponding four kinds of commercial dentin bonding systems were used. Primer pretreated synthetic hydroxyapatite (HAp) and primer untreated HAp were used to be mixed with corresponding bonding agent, with the same method described by Hsiao (1987). The bonding aspect between bonding agent and HAp were observed with SEM. The results indicated that in the dentin bonding system, the primer can enhance the bonding ability of bonding agent to HAp. Also, as to increasing the bonding durability, it is desirable that not only the primer but also the bonding agent should have chemical bonding ability to HAp.
九州歯科学会の論文
1993-06-25