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   Efficacy of Er,Cr Laser incision Corticotomy in Rapid Maxillary Canine Retraction: A Split-Mouth Randomized Clinical Trial  
   
نویسنده mahmoudzadeh majid ,poormoradi banafshe ,alijani sara ,farhadian maryam ,kazemisaleh azadeh
منبع journal of lasers in medical sciences - 2020 - دوره : 11 - شماره : 4 - صفحه:442 -449
چکیده    Introduction: this study sought to evaluate the efficacy of lasercision corticotomy for the acceleration of canine movement. our secondary objectives were assessing the canine rotation, the rate of anchorage control, the level of pain, and the gingival index (gi). methods: twelve orthodontic patients (9 females and 3 males) referring to the school of dentistry and one dental clinic from may 2019 to september 2019 participated in this split-mouth randomized clinical trial. the allocation of the test and control sides was performed by flipping a coin. the mean age of patients was 18.91±3.87 years (range 15-30 years). the treatment plan included maxillary first premolar extraction. following the initial leveling and alignment phase, an initial impression was made. corticotomy was carried out with the erbium, chromium-doped yttrium scandium gallium garnet (er, cr: ysgg) laser (3.5 w, 30 hz, 40% air, 80% water) in one maxillary quadrant (the laser side). canine retraction was immediately initiated following surgery using nickel-titanium closed-coil springs with 150 g force. the impression was repeated 1 month after the onset of retraction. the casts were scanned, and the distance between the canine cusp tip and the rugae line was measured to quantify the amount of anteroposterior canine movement. the molar anchorage control was also evaluated by measuring the distance between the mesial contact of the permanent first molar and the rugae line. gingival health was evaluated using the gi. the modified mcgill pain questionnaire was used to assess the level of patients’ pain. results: lasercision corticotomy accelerated canine retraction with no adverse effect on gingival health. anchorage loss in the posterior teeth and pain scores were not significantly different between the control and laser sides. conclusion: laser corticotomy can effectively accelerate canine retraction with no complications or discomfort for the patients.
کلیدواژه Lasers ,Orthodontic tooth movement ,Acceleration ,Minimally invasive surgical procedures.
آدرس hamadan university of medical sciences, faculty of dentistry, department of orthodontics, Iran, hamadan university of medical sciences, school of dentistry, laser research center, department of periodontology, Iran, hamadan university of medical sciences, dental faculty, orthodontic department, Iran, hamadan university of medical sciences, school of public health, modeling of noncommunicable diseases research center, department of biostatistics, Iran, hamadan university of medical sciences, school of dentistry, department of orthodontics, Iran
پست الکترونیکی azadeh.kazemisaleh@gmail.com
 
     
   
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