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Effect of self-etching primer and adhesive formulations on the shear bond strength of orthodontic brackets.
Am J Orthod Dentofacial Orthop. 2005 May; 127(5):573-9; quiz 625-6.AJ

Abstract

PURPOSE

Despite many published articles on the bond strength of self-etching primers and adhesives in the restorative dentistry literature, there have been relatively few laboratory studies of the bond strength of new orthodontic materials, and, in most of these published studies, investigators used various methodologic approaches during different stages of the in vitro testing procedures. The aim of this study was to compare the shear bond strength of 4 self-etching primer and adhesive formulations, a nonrinse conditioner and acetone adhesive system, and a conventional system.

MATERIAL

The self-etching products tested were Prompt L-Pop (3M ESPE, Seefeld, Germany), Clearfil SE Bond (Kuraray Dental, Osaka, Japan), FL Bond (Shofu Dental, Kyoto, Japan), and One-Up Bond F (Tokuyama, Tokyo, Japan); the nonrinse conditioner and acetone-based adhesive system was NRC and Prime&Bond NT (Dentsply International, Konstanz, Germany); the conventional acid-etch and bond system was Transbond XT (3M Unitek, Monrovia, Calif). Brackets were bonded to intact bovine mandibular incisors (n = 7 per group) according to each manufacturer's recommendations. The specimens were first stored in deionized water at 37 degrees C for 24 hours and then subjected to thermal cycling in deionized water at 5 degrees C +/- 2 degrees C to 55 degrees C +/- 2 degrees C for 1000 cycles. To facilitate degradation of bonds, the specimens were further stored in distilled water for 6 weeks before debonding procedures.

RESULTS

The shear bond strengths of the 5 experimental groups were all significantly lower (P < .05) than that of the control group (Prompt L-Pop, 1.72 +/- 0.13 MPa; Clearfil SE Bond, 1.75 +/- 0.19 MPa; FL Bond, 1.71 +/- 0.22 MPa; One-Up Bond F, 1.77 +/- 0.14 MPa; control, 10.5 +/- 0.86 MPa) but not different from one another (P > .05).

CONCLUSIONS

The tested self-etching primer and adhesive systems produced bond strength values much lower than that of the control product. Clinically, these products might not be suitable for orthodontic bracket bonding in terms of the shear bond strength achieved after thermal cycling and water storage.

Authors+Show Affiliations

Cehreli ZC
Department of Pediatric Dentistry, Faculty of Dentistry, Hacettepe University, Ankara, Turkey. zcehreli@hacettepe.edu.tr
Kecik D
No affiliation info available
Kocadereli I
No affiliation info available

MeSH

Acid Etching, DentalAdhesivesAnimalsCattleDental BondingDental CementsDental EnamelDental Stress AnalysisFluorides, TopicalMaleatesMaterials TestingMethacrylatesOrthodontic BracketsPolymethacrylic AcidsRandom AllocationResin CementsShear StrengthStatistics, Nonparametric

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15877037

Citation

Cehreli, Zafer C., et al. "Effect of Self-etching Primer and Adhesive Formulations On the Shear Bond Strength of Orthodontic Brackets." American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, vol. 127, no. 5, 2005, pp. 573-9; quiz 625-6.
Cehreli ZC, Kecik D, Kocadereli I. Effect of self-etching primer and adhesive formulations on the shear bond strength of orthodontic brackets. Am J Orthod Dentofacial Orthop. 2005;127(5):573-9; quiz 625-6.
Cehreli, Z. C., Kecik, D., & Kocadereli, I. (2005). Effect of self-etching primer and adhesive formulations on the shear bond strength of orthodontic brackets. American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, 127(5), 573-9; quiz 625-6.
Cehreli ZC, Kecik D, Kocadereli I. Effect of Self-etching Primer and Adhesive Formulations On the Shear Bond Strength of Orthodontic Brackets. Am J Orthod Dentofacial Orthop. 2005;127(5):573-9; quiz 625-6. PubMed PMID: 15877037.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of self-etching primer and adhesive formulations on the shear bond strength of orthodontic brackets. AU - Cehreli,Zafer C, AU - Kecik,Defne, AU - Kocadereli,Ilken, PY - 2005/5/7/pubmed PY - 2005/6/3/medline PY - 2005/5/7/entrez SP - 573-9; quiz 625-6 JF - American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics JO - Am J Orthod Dentofacial Orthop VL - 127 IS - 5 N2 - PURPOSE: Despite many published articles on the bond strength of self-etching primers and adhesives in the restorative dentistry literature, there have been relatively few laboratory studies of the bond strength of new orthodontic materials, and, in most of these published studies, investigators used various methodologic approaches during different stages of the in vitro testing procedures. The aim of this study was to compare the shear bond strength of 4 self-etching primer and adhesive formulations, a nonrinse conditioner and acetone adhesive system, and a conventional system. MATERIAL: The self-etching products tested were Prompt L-Pop (3M ESPE, Seefeld, Germany), Clearfil SE Bond (Kuraray Dental, Osaka, Japan), FL Bond (Shofu Dental, Kyoto, Japan), and One-Up Bond F (Tokuyama, Tokyo, Japan); the nonrinse conditioner and acetone-based adhesive system was NRC and Prime&Bond NT (Dentsply International, Konstanz, Germany); the conventional acid-etch and bond system was Transbond XT (3M Unitek, Monrovia, Calif). Brackets were bonded to intact bovine mandibular incisors (n = 7 per group) according to each manufacturer's recommendations. The specimens were first stored in deionized water at 37 degrees C for 24 hours and then subjected to thermal cycling in deionized water at 5 degrees C +/- 2 degrees C to 55 degrees C +/- 2 degrees C for 1000 cycles. To facilitate degradation of bonds, the specimens were further stored in distilled water for 6 weeks before debonding procedures. RESULTS: The shear bond strengths of the 5 experimental groups were all significantly lower (P < .05) than that of the control group (Prompt L-Pop, 1.72 +/- 0.13 MPa; Clearfil SE Bond, 1.75 +/- 0.19 MPa; FL Bond, 1.71 +/- 0.22 MPa; One-Up Bond F, 1.77 +/- 0.14 MPa; control, 10.5 +/- 0.86 MPa) but not different from one another (P > .05). CONCLUSIONS: The tested self-etching primer and adhesive systems produced bond strength values much lower than that of the control product. Clinically, these products might not be suitable for orthodontic bracket bonding in terms of the shear bond strength achieved after thermal cycling and water storage. SN - 0889-5406 UR - https://www.unboundmedicine.com/medline/citation/15877037/Effect_of_self_etching_primer_and_adhesive_formulations_on_the_shear_bond_strength_of_orthodontic_brackets_ DB - PRIME DP - Unbound Medicine ER -