Comparison in shear bond strength of orthodontic brackets between five bonding systems related to different etching times: An in vitro study

Surmont, P A; Dermaut, Luc; Martens, Luc; Moors, M.

doi:10.1016/0889-5406(92)70114-p

Cited by 51 publications

(17 citation statements)

References 22 publications

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“…Direct bonding is a significant development in dentistry that has been applied in all fields of dentistry including orthodontics, [1][2][3][4] since its introduction by Buonocore 5 ploy three different agents, ie, an enamel conditioner, a primer solution, and an adhesive resin. Self-etch systems, on the other hand, combine the conditioning and priming agents into a single acidic primer solution.…”

Section: Introductionmentioning

confidence: 99%

Rebonding of Orthodontic Brackets

Montasser

Drummond

Evans

2008

The Angle Orthodontist

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Objective: To compare rebonding of orthodontic brackets based on the hypothesis that no difference would be found between the adhesive systems with respect to shear bond strength, mode of failure, and clinical failure rates. Materials and Methods: The three adhesive systems included two self-etch primers (Transbond and M-Bond) and a conventional phosphoric acid etch (Rely-a-Bond). The sample size was 20 premolars for each adhesive system. The shear bond strength was tested 24 hours after bracket bonding with the bonding/debonding procedures repeated two times after the first debonding. Bond strength, adhesive remnant index (ARI), and failure sites were evaluated for each debonding. Statistical analysis consisted of a two-way analysis of variance (ANOVA) followed by Scheffè analysis. The clinical portion evaluated 15 patients over a 12-month period. Results: The mean shear bond strengths after the first, second, and third debondings for Relya-Bond were 8.4 Ϯ 1.8, 10.3 Ϯ 2.4, and 14.1 Ϯ 3.3 MPa, respectively; for Transbond 11.1 Ϯ 4.6, 13.6 Ϯ 4.5, and 12.9 Ϯ 4.4 MPa, respectively; and for M-Bond 8.7 Ϯ 2.7, 10.4 Ϯ 2.4, and 12.4 Ϯ 3.4 MPa, respectively. After the three debondings the mean shear bond strength increased significantly from the first to the third debonding for Rely-a-Bond and M-bond (P Յ .001), but did not change for Transbond (P ϭ .199). Conclusions:The original hypothesis is not rejected. The two self-etching primers showing higher or comparable bond strength to the conventional phosphoric etch with less adhesive remnant on the enamel surface after the first debonding. With repeated bonding/debonding, the differences in the bond strength, ARI, and failure site were not significantly different. There was no difference in the clinical performance of the three adhesive systems (P ϭ .667).

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Section: Introductionmentioning

confidence: 99%

Rebonding of Orthodontic Brackets

Montasser

Drummond

Evans

2008

The Angle Orthodontist

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“…Since the introduction of enamel etching in 1955, bonding orthodontics bracket has become the most widely-used method between orthodontists [35]. Self-etching primer SEP has a benefit of simplifying the bonding procedures with some tolerance to moisture.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of Using Self Etching Primer and Resin Modified Glass Ionomer on Bonding Orthodontic Brackets – an in Vitro Study

Dandachli¹

2016

Dent. Med. Probl.

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Many theories have been proposed to explain adhesion mechanism between brackets and enamel surface. Chemical and mechanical adhesion are the main types [1]. Conventional bonding methods use phosphoric acid to prepare the enamel surface before bonding, increasing its capability to the adhesion by creating micro pores on the surface [2][3][4]. Although this technique increases bond strength, it is a multi stages method [5] and needs stern isolation procedures, as moisture weakens the bond strength [6]. Several studies were made to decrease the disadvantages of using phosphoric AbstractBackground. Many adhesive systems have been investigated as alternatives to conventional bonding methods. Selfetching primers and resin modified glass ionomer cement have been introduced to overcome the disadvantages of acid etching Objectives. To assess the effect of using either a self etching primer (SEP) or a resin modified glass ionomer (RMGI) on shear bond strength and failure type in comparison with conventional methods (CM). Material and Methods. Eighty metal brackets were bonded to buccal surfaces of human upper premolars by the same clinician according to 1of 4 protocols. Group 1, Transbond XT was used with self-etching primer (SEP) Transbond Plus (3M Untiek, Monrovia, Calif). Group 2, resin modified glass ionomer (RMGI) Fuji Ortho LC (GC Crop, Japan). Group 3, light cure resin (LC) Transbond XT (3M Unitek, Monrovia, Calif) were used with 37% phosphoric acid. Group 4, Chemically cure resin (CC) Unite (3M Unitek, Monrovia, Calif) were used with 37% phosphoric acid. The premolars were stored in distilled water for 24 hours at 4ºC. Brackets were loaded to failure in Instron machine. Descriptive statistics were calculated. ANOVA, Bonferroni, Kruskal-Wallis tests and MannWhitney U were used. Results. The present study indicated that the SEP provided no significantly higher shear bond (10.01 ± 5.46 MPa) than LC adhesive (8.59 ± 4.07 MPa) while RMGI showed the lowest (5.08 MPa). A comparison of the adhesive remnant index (ARI) scores indicated that there was significantly difference between the groups with less residual adhesive remaining on the teeth with SEP and RMGI. Conclusions. SEP produced bond strength clinically accepted with less amount of residual adhesive left on the enamel while RMGI produced unacceptable bond strength. SEP can use successfully in bond orthodontic brackets (Dent. Med. Probl. 2016, 53, 1, 50-55).

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“…It has been reported that the bracket basecement interface is the weakest point in orthodontic bonding. (26)(27)(28) Bracket base treatments such as microetching to increase surface area have been shown to enhance adhesion, leading to an increase in bond strength. (13,29) Brackets with foil-mesh bases such as Ultraminitrim bracket have also been shown to have higher bond strengths than those with integral milled bases such as the Dyna-lock bracket.…”

Section: Discussionmentioning

confidence: 99%

“…Lazerle yap›land›r›lm›fl kaidelerle elde edilmifl yük-sek bond kuvveti de¤erleri yüzünden tedavi s›ras›nda beklenmedik debondinglerde bir düflüfl bekleyebiliriz; baflka bir çal›flmada bu braketlerle yap›lan 3 y›ll›k klinik deneyler bunu do¤rulamaktad›r. (25) Ortodontik bonding'de braket kaidesi siman arayüzeyinin en zay›f nokta oldu¤u bel i r t i l m i fl t i r. (26)(27)(28) Yüzey alan›n› artt›rmak için microetching gibi braket kaide düzenle-meleri bond kuvvetinde(13-29) art›fla önder-lik eden adezyonu artt›rmak için gösterilmek-tedir. Ultraminirim gibi foil-mesh kaideli bra-…”

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