Abstract
Purpose: To evaluate the use of nitrogen, in conjunction with visible light polymerization, for improving composite-to-dentin bond strengths. Materials and Methods: Composite cylinders were bonded to dentin with Scotchbond Multi-Purpose. Immediate (Groups 1- 4) and 24-hour (Groups 5-8) strengths were determined for the following two adhesive application and two polymerization techniques: Groups 1 & 5: gentle air thinning of adhesive and polymerization with conventional visible light curing (VLC) unit; Groups 2 and 6: aggressive air thinning of adhesive and conventional VLC; Groups 3 and 7: gentle air thinning of adhesive and polymerization in nitrogen environment with modified VLC unit; and Groups 4 and 8: aggressive air thinning of adhesive and polymerization in nitrogen environment with modified VLC unit. Results: The immediate bond strengths (MPa) were: Group 1: 15.1 ± 1.8, Group 2: 6.1 ± 2.1, Group 3: 17.8 ± 3.1, Group 4: 15.8 ± 2.0. The 24-hour strengths were: Group 5: 26.7 ± 4.4, Group 6: 13.5 ± 7.5, Group 7: 24.1 ± 5.7, Group 8: 26.4 ± 4.3. Visible light polymerization of a thinned layer of adhesive resin in a nitrogen environment produced significantly higher immediate and 24-hour bond strengths than when compared to visible light polymerization in ambient air.
| Original language | English |
|---|---|
| Pages (from-to) | 157-160 |
| Number of pages | 4 |
| Journal | American Journal of Dentistry |
| Volume | 9 |
| Issue number | 4 |
| State | Published - 1996 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Dentistry(all)
Cite this
Bond strength of an adhesive polymerized under nitrogen. / Schvaneveldt, Shane L.; Rozmajzl, William F.; Barkmeier, Wayne W.; Latta, Mark A.
In: American Journal of Dentistry, Vol. 9, No. 4, 1996, p. 157-160.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Bond strength of an adhesive polymerized under nitrogen
AU - Schvaneveldt, Shane L.
AU - Rozmajzl, William F.
AU - Barkmeier, Wayne W.
AU - Latta, Mark A.
PY - 1996
Y1 - 1996
N2 - Purpose: To evaluate the use of nitrogen, in conjunction with visible light polymerization, for improving composite-to-dentin bond strengths. Materials and Methods: Composite cylinders were bonded to dentin with Scotchbond Multi-Purpose. Immediate (Groups 1- 4) and 24-hour (Groups 5-8) strengths were determined for the following two adhesive application and two polymerization techniques: Groups 1 & 5: gentle air thinning of adhesive and polymerization with conventional visible light curing (VLC) unit; Groups 2 and 6: aggressive air thinning of adhesive and conventional VLC; Groups 3 and 7: gentle air thinning of adhesive and polymerization in nitrogen environment with modified VLC unit; and Groups 4 and 8: aggressive air thinning of adhesive and polymerization in nitrogen environment with modified VLC unit. Results: The immediate bond strengths (MPa) were: Group 1: 15.1 ± 1.8, Group 2: 6.1 ± 2.1, Group 3: 17.8 ± 3.1, Group 4: 15.8 ± 2.0. The 24-hour strengths were: Group 5: 26.7 ± 4.4, Group 6: 13.5 ± 7.5, Group 7: 24.1 ± 5.7, Group 8: 26.4 ± 4.3. Visible light polymerization of a thinned layer of adhesive resin in a nitrogen environment produced significantly higher immediate and 24-hour bond strengths than when compared to visible light polymerization in ambient air.
AB - Purpose: To evaluate the use of nitrogen, in conjunction with visible light polymerization, for improving composite-to-dentin bond strengths. Materials and Methods: Composite cylinders were bonded to dentin with Scotchbond Multi-Purpose. Immediate (Groups 1- 4) and 24-hour (Groups 5-8) strengths were determined for the following two adhesive application and two polymerization techniques: Groups 1 & 5: gentle air thinning of adhesive and polymerization with conventional visible light curing (VLC) unit; Groups 2 and 6: aggressive air thinning of adhesive and conventional VLC; Groups 3 and 7: gentle air thinning of adhesive and polymerization in nitrogen environment with modified VLC unit; and Groups 4 and 8: aggressive air thinning of adhesive and polymerization in nitrogen environment with modified VLC unit. Results: The immediate bond strengths (MPa) were: Group 1: 15.1 ± 1.8, Group 2: 6.1 ± 2.1, Group 3: 17.8 ± 3.1, Group 4: 15.8 ± 2.0. The 24-hour strengths were: Group 5: 26.7 ± 4.4, Group 6: 13.5 ± 7.5, Group 7: 24.1 ± 5.7, Group 8: 26.4 ± 4.3. Visible light polymerization of a thinned layer of adhesive resin in a nitrogen environment produced significantly higher immediate and 24-hour bond strengths than when compared to visible light polymerization in ambient air.
UR - http://www.scopus.com/inward/record.url?scp=0030203563&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030203563&partnerID=8YFLogxK
M3 - Article
C2 - 9002791
AN - SCOPUS:0030203563
VL - 9
SP - 157
EP - 160
JO - American Journal of Dentistry
JF - American Journal of Dentistry
SN - 0894-8275
IS - 4
ER -