One study reported that laser preparation as an adjunct to acid-etching enhanced the retention rate .
No significant difference in the incidence of caries was reported .
And no significant differences were found in heart rates , oxygen saturation or degree of the patient dental anxiety between acid-etching and laser preparation .
Conclusion The present limited evidence suggests that lasers could be an effective pretreatment method .
The retention rate was similar to that of conventional acid etching .
Background This systematic review aim ed to assess the clinical effects of laser preparation compared to other types of chemical or mechanical preparation of tooth surfaces used in fissure sealant placement .
A comparative evaluation of retention of pit and fissure sealants placed with conventional acid etching and Er,Cr:YSGG laser etching: A randomised controlled trial.
Aim : The aim of this study was to compare the retention rates of sealant placed either with conventional acid etching or Er , Cr : YSGG laser pretreatment of enamel surface . Material s and methods : This is a prospect i ve , single blind r and omised controlled clinical trial enrolling 200 permanent first molars in 50 patients , aged 6 - 12 years for sealant placement . Study followed split mouth design where each side of the arch was r and omly allocated to the two treatment group . Group A(Acid etch group ) : 37 % phosphoric acid ( Scotchbond , 3 M ESPE , Seefeld , Germany ) was applied for 15 seconds , rinsed with water for 20 seconds and then air-dried using air spray . Group L(Laser etch group ) : Fissures were prepared with an Er , Cr : YSGG laser system ( Waterlase , BIOLASE Technology , San Clemente , CA , USA ) emitting photons at a wavelength of 2.78 µm . Laser irradiation at 1.5 W ( 60 % air and 40 % water ) , in a noncontact mode , with a repetition rate of 20 Hz for 10seconds was used . Pit and fissure sealant ( 3 M ESPE , Clinpro ) was applied and cured for 20 seconds . One blinded , calibrated examiner , who was unaware of which preparation method has been used and who was not involved in the treatment procedures , evaluated the sealant at baseline and at 3 , 6 , 9 and 12 month follow-up visits . Results : It was observed that overall retention rate in group A was slightly higher as compared to group L at all time periods , however , the difference was statistically non-significant ( p-value>0.05 ) . CONCLUSION Er , Cr : YSGG laser etching is comparable to acid etching in terms of retention and patient acceptability
One study reported that laser preparation as an adjunct to acid-etching enhanced the retention rate .
No significant difference in the incidence of caries was reported .
And no significant differences were found in heart rates , oxygen saturation or degree of the patient dental anxiety between acid-etching and laser preparation .
Conclusion The present limited evidence suggests that lasers could be an effective pretreatment method .
The retention rate was similar to that of conventional acid etching .
Background This systematic review aim ed to assess the clinical effects of laser preparation compared to other types of chemical or mechanical preparation of tooth surfaces used in fissure sealant placement .