Comparison Between Shear Bond Strength of Different Commercial Metal Bracket Brands: an in Vitro Study

Future University in Egypt

Status: Completed

Conditions: Orthodontic Appliance Complication; Shear Strength

Treatments: Other: Estimation of Shear Bond Strength

Study type: Interventional

Funder types: Other

Identifiers

NCT05812456

FUE.REC(29)/12/2020

Details and patient eligibility

About

some orthodontic brands are more expensive than others, one of the primary outcomes of this study is to know if is it worth using expensive brands? will it provide better quality treatment, in particular, bond strength? The treatment duration is long therefore it is expensive, either for the orthodontist and/or the patient.

This study will be comparing the bond strength of different commercial brands of stainless steel brackets.

Full description

There are a plethora of studies in the science of orthodontics discussing different massive advances in the orthodontic adhesion concepts that allowed orthodontists to successfully bond brackets and tubes to teeth. the bond strength between the bracket and tooth should be sufficient to withstand the forces of mastication and the aggressive conditions of the oral environment. a commonly encountered problem is the failure of the bond between the bracket and tooth during treatment.

There are a lot of orthodontic in vitro studies that discussed bond failure and strength. multiple studies have studied the bracket-enamel bond strength with different curing systems and found that there was no significant difference in terms of bond strength. Several other studies discussed the effect of different adhesive systems on the bond strength to the enamel.

There are many studies that debated the shear bond strength of different metal bracket base shapes and sizes concluding that no differences in SBS for the surface area within the range of 6.82-12.35mm2 as well as the shape of the bracket base had no effect on shear bond strength.

The effectiveness or the success of the orthodontic treatment is arbitrated by achieving better aesthetics, better function, and better judgment for the patient too.

Even if there was a plethora of studies comparing the bond strength of different bracket shapes and sizes and also between metal and ceramic brackets, however, none have considered comparing shear bond strength of different bracket brands to enamel, Considering its cost and repeated failure which has its implication on both patient and orthodontist.

Enrollment: 40 patients

Sex: All

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• sound extracted upper and/or lower permanent premolars.
• Intact buccal enamel surface with n erosion and cracks.
• the teeth must be free from caries, restoration, white spot lesions, or any sign of decalcification.
• No pretreatment with any chemical agents such as hydrogen peroxide or formalin.

Exclusion criteria

• teeth with amelogenesis or dentinogenesis imperfecta.
• labially restored teeth.
• endodontically treated teeth.
• teeth with fluorosis.

Trial design

Primary purpose: Other

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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40 participants in 4 patient groups

3m Metal Brackets

Active Comparator group

Description:

3m Unitek Gemini Roth Stainless-Steel Brackets. it is passive Stainless-Steel components used in fixed Orthodontics appliance to help in solving malocclusions by bonding it to teeth's enamel. it acts as a means to transfers forces applied by activated archwires inserted in bracket slots to try to correct and improve the patients malocclusion problems. There are different sizes of Stainless-Steel bracket slots, There are 0.018 slot and 0.022 slot. Brackets are made of many different materials such as Stainless-Steel, ceramics, plastic or 3d printed. The most used type is metal brackets. Brackets come with built in prescriptions of torque and tip, there are two type of prescriptions: Roth and MBT

Treatment:

Other: Estimation of Shear Bond Strength

American Orthodontics Metal Brackets

Active Comparator group

Description:

American Orthodontics Mini Masters 0.022 Roth Stainless-Steel Brackets. it is passive Stainless-Steel components used in fixed Orthodontics appliance to help in solving malocclusions by bonding it to teeth's enamel. it acts as a means to transfers forces applied by activated archwires inserted in bracket slots to try to correct and improve the patients malocclusion problems. There are different sizes of Stainless-Steel bracket slots, There are .18 slot and .22 slot. Brackets are made of many different materials such as Stainless-Steel, ceramics, plastic or 3d printed. The most used type is metal brackets. Brackets come with built in prescriptions of torque and tip, there are two type of prescriptions: Roth and MBT

Treatment:

Other: Estimation of Shear Bond Strength

Fanta Metal Brackets

Experimental group

Description:

Fanta Firmax 0.022 Roth Stainless-Steel Brackets. Fanta is a Chinese Orthodontic bracket brand that started to spread. it is passive Stainless-Steel components used in fixed Orthodontics appliance to help in solving malocclusions by bonding it to teeth's enamel. it acts as a means to transfers forces applied by activated archwires inserted in bracket slots to try to correct and improve the patients malocclusion problems. There are different sizes of Stainless-Steel bracket slots, There are 0.018 slot and 0.022 slot. Brackets are made of many different materials such as Stainless-Steel, ceramics, plastic or 3d printed. The most used type is metal brackets. Brackets come with built in prescriptions of torque and tip, there are two type of prescriptions: Roth and MBT

Treatment:

Other: Estimation of Shear Bond Strength

Matt Orthodontics Metal Brackets

Experimental group

Description:

Matt Orthodontics Pierre 0.022 Roth Metal Brackets. Matt is a Chinese Orthodontic bracket brand that started to spread. it is passive Stainless-Steel components used in fixed Orthodontics appliance to help in solving malocclusions by bonding it to teeth's enamel. it acts as a means to transfers forces applied by activated archwires inserted in bracket slots to try to correct and improve the patients malocclusion problems. There are different sizes of Stainless-Steel bracket slots, There are 0.018 slot and 0.022 slot. Brackets are made of many different materials such as Stainless-Steel, ceramics, plastic or 3d printed. The most used type is metal brackets. Brackets come with built in prescriptions of torque and tip, there are two type of prescriptions: Roth and MBT

Treatment:

Other: Estimation of Shear Bond Strength