Karthikeyan Subramani

Abstract

The purpose of this 2 part review is to evaluate various debonding techniques for orthodontic ceramic bracket removal and their clinical applications. In this part 2 of the literature review, in vitro and in vivo studies on electrothermal debonding and Laser debonding techniques have been reviewed. Electrothermal debonding is a physiologically acceptable alternative to mechanical debonding. It requires minimal force following thermal softening of adhesive material and produces minimal changes to enamel surfaces compared to conventional methods. Minimal effects on enamel and intrapulpal temperature changes are noted with ytterbium fiber laser, diode laser and Tm:YAP laser. Different parameters are possible with CO2 laser, Nd:YAG laser and Er:YAG laser that may need further research before considering them in clinical practice. Keywords: Debonding, Orthodontic ceramic brackets, Literature Review, Electrothermal debonding, Laser debonding.

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Abstract

The purpose of this 2 part literature review is to evaluate various debonding techniques for orthodontic ceramic bracket removal and their clinical applications. In part 1, in vitro and in vivo studies on mechanical and ultrasonic debonding techniques have been reviewed. Mechanical debonding (use of diamond burs, special pliers) is most widely applicable in clinical practice. Use of recommended pliers by manufacturers is key to minimize bracket failure modes as these pliers are designed specifically for the brackets. Ultrasonic debonding is advantageous in minimizing bracket failure but requires greater time to debond ceramic brackets than mechanical debonding and it may be uncomfortable to the patient due to longer duration of use. Studies on electrothermal and Laser debonding have been reviewed in part 2 of the literature review. Keywords: Debonding, Orthodontic ceramic brackets, Literature Review, Mechanical debonding, Ultrasonic debonding.

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