Evaluation of Bond Strength: An In vitro Study using Pro Seal

Area of Science:

• Orthodontics
• Dental Materials Science

Background:

• Fluoride-releasing bonding agents aim to prevent white spot lesions but have handling limitations.
• Pro Seal, an enamel sealant, has demonstrated reduced enamel demineralization in previous studies.
• This study evaluates the bond strength of orthodontic brackets when using Pro Seal.

Purpose of the Study:

• To assess the bond strength of orthodontic brackets bonded with Pro Seal compared to conventional methods.
• To determine if Pro Seal affects the mechanical integrity of bracket adhesion.

Main Methods:

• Sixty extracted premolars were divided into two groups: conventional bonding (control) and Pro Seal assisted bonding (experimental).
• Brackets were bonded to the teeth in each group.
• Debonding procedures were performed after a 5-minute rest period to measure bond strength.

Main Results:

• The control group exhibited a mean bond strength of 24.9 N.
• The experimental group using Pro Seal showed a mean bond strength of 21.1 N.
• A statistically significant difference was observed, with Pro Seal resulting in lower bond strength.

Conclusions:

• Pro Seal provides adequate bond strength for orthodontic bracket adhesion.
• However, its use leads to a significant reduction in bond strength compared to conventional bonding techniques.
• Practitioners should consider this decrease in bond strength when selecting Pro Seal.