Journal article
Microleakage of porcelain veneer restorations bonded to enamel and dentin with a new self-adhesive resin-based dental cement
Dental materials, Vol.23(2), pp.218-225
2007
DOI: 10.1016/j.dental.2006.01.013
PMID: 16499961
Abstract
Cementation technique of bonded ceramic restorations is a time-consuming and technique-sensitive procedure critical to long-term success.
Evaluate the performance of a self-adhesive, modified-resin dental cement (Rely-X UniCem, 3M-ESPE) for the cementation of ceramic veneer restorations without previous conditioning of the tooth surface, and in combination with a one-bottle adhesive and a self-etching adhesive.
Thirty-six premolars received a veneer preparation that extended into dentin. Leucite-reinforced pressed glass ceramic (Empress 1) veneers were cemented following manufacturers’ instructions, according to the following treatment groups (
n
=
9): (1) Variolink–Excite Ivoclar–Vivadent (V
+
E control), (2) Unicem
+
Single Bond 3M-ESPE (U
+
SB), (3) Unicem
+
Adper Prompt L-Pop 3M-ESPE (U
+
AP), (4) Unicem 3M-ESPE (U). After 24
h storage at 37
°C, teeth were thermocycled (2000 cycles) at 5 and 55
°C, immersed in ammoniacal silver nitrate for 24
h, placed in a developer solution overnight and sectioned using a slow-speed saw. Three 1
mm longitudinal sections were obtained from each tooth and evaluated for leakage with a microscope (1× to 4×). Imaging software was used to measure stain penetration along the dentin and enamel surfaces.
ANOVA with SNK (
α
=
0.05) revealed that on dentin, U had significantly less leakage than U
+
SB and U
+
AP, but no different than V
+
E; on enamel U had leakage values that were significantly greater than the groups with adhesives.
The self-adhesive cement U gave low leakage on dentin that was comparable to the cement that employed an adhesive for sealing dentin, whereas this cement benefits from use of an adhesive when cementing to enamel.
Details
- Title: Subtitle
- Microleakage of porcelain veneer restorations bonded to enamel and dentin with a new self-adhesive resin-based dental cement
- Creators
- Gabriela Ibarra - University of WashingtonGlen H. Johnson - University of WashingtonWerner Geurtsen - University of WashingtonMarcos A. Vargas - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Dental materials, Vol.23(2), pp.218-225
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/j.dental.2006.01.013
- PMID
- 16499961
- ISSN
- 0109-5641
- eISSN
- 1879-0097
- Language
- English
- Date published
- 2007
- Academic Unit
- Family Dentistry
- Record Identifier
- 9984367656802771
Metrics
6 Record Views