Influence of food-simulating liquids on bond strength of brackets bonded with a HEMA-free and HEMA-containing self-etching primer.

Objective: To evaluate the effect of food-simulating liquids on bond strengths of brackets bonded with a HEMA-free and a HEMA-containing self-etching primer.

Materials And Methods: Brackets were bonded to 280 bovine incisors that were divided into two groups: (1) Adper Prompt-L-Pop (Adper PLP)/Transbond-XT and (2) Transbond Plus self-etching primer (TSEP, HEMA-free)/Transbond-XT. Each group was evaluated under different storage conditions: 24 hours in water, thermocycling (T), T/12 weeks in water, T/12 weeks in 10% ethanol, T/12 weeks in 50% ethanol, T/12 weeks in 3% acetic acid, and T/12 weeks in olive oil.

In vitro study of force decay of latex and non-latex orthodontic elastics.

The aim of this study was to evaluate the force decay of two brands of orthodontic elastics, both offering latex and non-latex products. Samples were subjected to continuous stretching, measuring force at 5 seconds, 8 hours, and 24 hours in both dry and wet conditions. Five hundred samples were used, GAC® and Lancer® 0.

Melatonin stimulates the growth of new bone around implants in the tibia of rabbits.

This study evaluated the effect of the topical application of melatonin in accelerating bone formation associated with implants 2 months after their application to the tibiae of rabbits. Twenty New Zealand rabbits were used. Twenty implants treated with melatonin and 20 control implants without melatonin were placed in the proximal metaphyseal area of each tibia.

The effects of two soft drinks on bond strength, bracket microleakage, and adhesive remnant on intact and sealed enamel.

The purpose of this study was to evaluate the effects of Coca-Cola and Schweppes Limón on bond strength, adhesive remnant, and microleakage beneath brackets. One hundred and twenty upper central incisor brackets were bonded to bovine incisors and divided into three groups: (1) Control, (2) Coca-Cola, and (3) Schweppes Limón. The teeth were submerged in the drinks three times a day for 15 minutes over a 15 day period.

Effect of saliva contamination on bracket failure with a self-etching primer: a prospective controlled clinical trial.

Introduction: The aim of this study was to evaluate in vivo the effect of saliva contamination at different stages of the bonding procedure on the bond failure rate and the adhesive remaining on teeth after debonding brackets bonded with a hydrophilic self-etching primer (Transbond Plus self-etching primer [TSEP], 3M Unitek, Monrovia, Calif).

Methods: This was a prospective controlled clinical trial. The sample consisted of 46 patients with similar treatment plans and mechanotherapies.

Effect of water contamination on the shear bond strength of five orthodontic adhesives.

Objectives: To evaluate the shear bond strength and site of failure of brackets bonded to dry and wet enamel.

Study Design: 50 teeth were divided into ten groups of 5 teeth each (10 surfaces). In half the groups enamel was kept dry before bonding, and in the other half distilled water was applied to wet the surface after etching.

The in vitro effect of repeated bonding on the shear bond strength with different enamel conditioning procedures.

The aims of this study were to evaluate the effect on shear bond strength (SBS), adhesive remnant, and enamel surface of repeated bonding of new brackets on the same tooth using different methods of enamel conditioning. One hundred and thirty-five bovine incisors were used. Brackets were bonded to enamel using one of the following conditioning procedures: (1) 37 per cent phosphoric acid, (2) 37 per cent phosphoric acid (prior to first bond but not for further bonds), (3) Transbond Plus Self Etching Primer (TSEP), and (4) non-rinse-conditioner (NRC).

Evaluation of different flowable materials for bonding brackets.

Purpose: To compare the shear bond strength and the adhesive remnant on the tooth after debonding of brackets bonded with a traditional orthodontic resin (Transbond XT), a flowable composite (X-Flow), a flowable compomer (Dyract Flow) and a flowable giomer (Beautifil Flow).

Methods: 105 extracted human premolars were used. They were divided into four groups: (1) Transbond XT, (2) X-Flow, (3) Dyract Flow, and (4) Beautifil Flow.

Third molar agenesis and craniofacial morphology.

Objective: To test the null hypothesis that agenesis of wisdom teeth is not related with any particular craniofacial morphology.

Materials And Methods: Ninety-seven patients (aged 13-19 years) were selected and divided into three groups: (1) bilateral agenesis of maxillary third molars, (2) bilateral agenesis of mandibular third molars, and (3) control group without agenesis. Presence or absence of third molars was determined using ortopantomographs.

Microleakage beneath brackets bonded with flowable materials: effect of thermocycling.

The purpose of this study was to evaluate the effects of thermocycling on microleakage beneath brackets bonded with an orthodontic composite and different flowable materials. Brackets were bonded to 200 bovine incisors divided into five groups: (1) Transbond XT, (2) X-Flow, (3) Dyract-Flow, (4) Admira-Flow, and (5) Beautiful-Flow. Half the teeth in each group were thermocycled.

Water and saliva contamination effect on shear bond strength of brackets bonded with a moisture-tolerant light cure system.

Objective: To evaluate the effects of water and saliva contamination on shear bond strength of brackets bonded with a moisture-tolerant light cure system.

Materials And Methods: Brackets were bonded to 240 bovine lower incisors divided into 12 groups. Four bonding procedures were evaluated, including (1) TSEP/Transbond XT, (2) TMIP/ Transbond XT, (3) TSEP/Transbond PLUS, and (4) TMIP/Transbond PLUS, each under three different bonding conditions: without contamination, with water contamination, and with saliva contamination.

Influence of an etchant and a desensitizer containing benzalkonium chloride on shear bond strength of brackets.

Purpose: To evaluate whether the application of an enamel etchant (Etch-37 BAC) and a desensitizer (PrepEze desensitizer) which contain the antibacterial agent benzalkonium chloride (BAC) affects the bond strength of the orthodontic resin Transbond XT.

Materials And Methods: Eighty-five extracted premolars were used. They were divided into four groups: 1.

The use of a flowable ormocer for bonding brackets.

Purpose: To evaluate the effectiveness of the ormocer Admira Flow for bonding brackets.

Methods: 45 extracted human premolars were used. They were divided into two groups: (1) Brackets cemented with the traditional resin orthodontic bonding system Transbond XT, and (2) Brackets bonded with Admira Flow.

Shear bond strength of precoated and uncoated brackets using a self-etching primer.

Objective: To test the hypothesis that there are no significant differences in the shear bond strength or the adhesive remaining on the tooth after debonding between precoated and uncoated brackets using a self-etching primer.

Materials And Methods: APC Plus precoated brackets and uncoated brackets were bonded with Transbond XT adhesive using the self-etching primer Transbond Plus Self-Etching Primer (TPSEP). The brackets were bonded to extracted human premolars and categorized into two groups: (1) TPSEP/Transbond XT and (2) TPSEP/APC Plus.

Effect of surface treatments on the bond strength of brackets bonded with a compomer.

Purpose: To evaluate the effectiveness of the compomer Dyract AP for bonding brackets when conditioning the enamel with phosphoric acid and a non-rinsing conditioner (NRC), in comparison with a control group in which the resin orthodontic adhesive system Transbond XT was used.

Methods: The brackets were bonded to extracted premolars which were divided into three groups: (1) Acid/Transbond XT, (2) NRC/Dyract AP and (3) Acid/Dyract AP. Shear bond strength was measured with a universal testing machine.

Direct bonding with precoated brackets and self-etching primers.

Purpose: To evaluate the shear bond strength and the adhesive remnant on the tooth after the debonding of APC Plus precoated brackets, when conditioning the enamel with phosphoric acid and Transbond Plus Self Etching Primer (TSEP), in comparison with uncoated brackets bonded with Transbond XT.

Methods: The brackets were bonded to extracted premolars, which were divided into three groups: (1) Acid/Transbond XT, (2) Acid/ APC Plus and (3) TSEP/APC Plus. Shear bond strength was measured using a universal test machine.

Effects of 3 adhesion promoters on the shear bond strength of orthodontic brackets: an in-vitro study.

Introduction: The objectives of this study were to (1) determine the effect of 3 adhesion promoters on shear bond strength and the amount of remnant adhesive on the teeth after debonding and (2) learn whether 1 promoter is material-specific, as stated by the manufacturer.

Methods: The promoters tested were OrthoSolo (Ormco, Orange, Calif), All-Bond 2 (Bisco, Schaumburg, Ill), and Enhance L.C.

Adhesion promoters: effects on the bond strength of brackets.

Purpose: To evaluate the effect of two adhesion promoters on shear bond strength and remnant adhesive of brackets cemented with a light-cured orthodontic adhesive resin system.

Methods: The two adhesion promoters tested were OrthoSolo and All-Bond 2 Primer. Seventy-five upper premolars were divided into three groups of 25.

Self-etching primer and a non-rinse conditioner versus phosphoric acid: alternative methods for bonding brackets.

The objective of this study was to evaluate the effectiveness of a self-etching primer, Transbond Plus Self Etching Primer (TSEP, 3M Unitek), and a non-rinse conditioner (NRC, Dentsply DeTrey) for bonding brackets, compared with the acid-etch technique. The brackets were bonded to extracted premolars using Transbond XT (3M Unitek). One of the following three conditioning protocols were used: (1) 37 per cent phosphoric acid (n = 25), (2) TSEP (n = 25), and (3) NRC (n = 15).

Shear bond strength of orthodontic brackets bonded with self-etching primers.

Purpose: To evaluate the effectiveness of two self-etching primers for bonding brackets in comparison with the conventional acid-etch technique.

Methods: The brackets were bonded to extracted human premolars using the resin orthodontic adhesive system, Transbond XT. This procedure was carried out in accordance with one of the following three protocols of enamel conditioning: (1) 37% phosphoric acid etching, (2) Transbond Plus Self Etching Primer (TSEP), and (3) Adper Prompt L-Pop (Adper PLP).

Prevention of habitual cheek biting: a case report.

Oral and peri-oral structures can be traumatized by self-injurious behavior (SIB). Various articles have described prostheses used to prevent SIB-related injuries to the oral tissues of patients who have developmental or medical problems, such as psychological problems, congenital syndromes or mental retardation; however, reports of oral SIB in individuals unaffected by the above conditions are scarce. This case report describes the use of a removable prosthesis to prevent a stress-induced cheek biting habit in 15-year-old girl who did not have any of the commonly related conditions.

Effect of saliva contamiination on the shear bond strength of orthodontic brackets bonded with a self-etching primer.

This study evaluates the effect of saliva contamination at different stages of the bonding brackets procedure using the self-etching primer Adper Prompt L-Pop (3M ESPE, Minneapolis, Minn) and the resin orthodontic adhesive system Transbond XT (3M). A total of 70 brackets were bonded to human extracted premolars, which were divided into four groups: group 1, uncontaminated (control); group 2, saliva application before priming; group 3, saliva application after priming; and group 4, saliva application before and after priming. Shear bond strength was measured with a universal test machine.

Influence of a nonrinse conditioner on the bond strength of brackets bonded with a resin adhesive system.

The objective of this study was to compare the effect of a nonrinse conditioner (NRC) and the conventional acid-etch technique on the shear bond strength and the adhesive remnant on the tooth after debonding brackets bonded with the resin orthodontic adhesive system Transbond XT. A total of 40 human premolars were divided into group I, phosphoric Acid/Transbond XT (n = 25) and group II, NRC/ Transbond XT (n = 15). Shear bond strength was measured with a universal test machine with a crosshead speed of 1 mm/min.

Pacifier sucking in a child with cleft palate: occlusal consequences.

The case of a child with a repaired cleft palate and a pacifier habit is presented. The influence of both the cleft and the habit on the malocclusion is discussed. The malocclusion disappeared as the habit ceased.