수종 상아질접착제의 상아질침투양상에 관한 주사전자현미경적 연구
SCANNING ELECTRON MICROSCOPIC STUDY ON RESIN INFILTRATIONS AFTER DENTIN TREAATMENTS
소속 상세정보
Gyun-Won Kwon
Sang-Jin Park/Byung-Soon Min/Ho-Young Choi/Gi-Woon Choi
KMID : 0362319930180010038
Abstract
The purpose of this study was to observe the resin infiltration pattern into dentin by various dentin boding agents. Freshley extracted 36 sound human molars were used in this study. They were stored at 4˚C physiologic saline solution before experiment.
All the teeth were cross-sectioned to expose dentin below about 3.0mm at the cusp tip and above 2.0mm at the cemento-enamel junction with Crystal Cutter(MC411D, Maruto Co., Japan), and were made into specimens for this study (Fig. 1).
The specimen experimental groups were divided into 9 groups by dentin surface treatment as following procedures:
Group1: Treated with Gluma Cleanser Followed by Gluma Primer and Sealer
Group 2: Treated with Gluma Cleanser followed by Scotchbond 2 Adhesive
Group 3: Treated with Gluma Cleanser followed by Tenure Solution A, B and Visar Seal
Group 4: Treated with Scotchprep followed by Scotchbond 2 Adhesive.
Group 5: Treated with Scotchprep followed by Gluma Primer and Sealer
Group 6: Treated with Scotchprep followed by Tenure Solution A, B and Visar Seal
Group 7: Treated with Tenure Conditioner followed by Tenure Solution A, B and Visar Seal
Group 8: Treated with Tenure Conditioner followed by Scotchbond 2 adhesive
Group 9: Treated with Tenure Conditioner follwed by Gluma Primer and Sealer
27 specimens of 36 specimens were divided into 9 groups(Group 1-9), and were used for observation of resin tags. Remaining 9 specimens were divide into 3 groups(Group 1, 4 and 7), and were used for observation offractured dentin surfaces.
Specimens to observe the resin tag were demineralized with 20% HCI for 14 hours, specimens to observe the fractured dentin surfaces were demineralized with 10% HCI or 3 minutes.
All the specimens were gold-coated with Eiko ion coater(Eiko-engineering Co), and observed under Scanning electron microscope(Hitachi S-2300) at 20 KV.
The following results were obtained:
1. In group 1 treated with Gluma Cleanser, Gluma Primer, and Sealer, most resin tags were more than 100μm.
2. In group 4 treated with Scotchprep and Scotchbond 2 Adhesive, most resin tags were about 10μm.
3. In group 7 treated with Tenure conditioner, Tenure Solution A, B, and Visar Seal, most resin tags were about 10μm but occasionally resin tags were more than 100μm.
4. In groups 2, 3, 5, 6, 8, and 9, the lengths of resin tags were inconsistent and the amount of resin tags were reduced.
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