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Register a new userEvaluation of the effectiveness of plaque adjacent to orthodontic brackets bonded with fluoride-releasing resin-based composite
تقييم فعالية اللويحة الجرثومية المجاورة للحاصرات التقويمية المُلصَقة بالكمبوزيت المُحرِّر للفلور
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Aِl-Baath University ورقة بحثية
Publication date
2017
fields
Dentistry
and research's language is
العربية
Created by
Shamra Editor
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هدفت الدراسة إلى تحرّي قدرة الكمبوزيت المُحرر للفلور في السيطرة على فعالية اللويحة الجرثومية بجوار الحاصرات التَّقويمية المُلصَقة به. تألفت عينة البحث من 128 حاصرة تقويمية تم إلصاقها على 128 ضاحك ثاني لدى 32 مريضاً و مريضةً باستخدام إحدى مادتي الإلصاق (الكمبوزيت التّقليدي و الكمبوزيت المُحرر للفلور) بطريقة الفم المشطور.
The effectiveness of the bacterial plaque adjacent orthodontic brackets which bonded with fluoride releasing resin-based composite was studied to evaluate the ability of this bonding material in the control of caries process. 128 orthodontic brackets were bonded on 128 second premolars in 32 patients by using conventional composite in one group and fluoride releasing resin-based composite in other group using the split-mouth technique.
References used
HUSER, M. C., BAEHNI, P. C. & LANG, R. 1990, Effects of orthodontic bands on microbiologic and clinical parameters, Am J Orthod Dentofacial Orthop, 97, 213-8
MIZRAHI, E. 1982, Enamel demineralization following orthodontic treatment, Am J Orthod, 82, 62-7
GORELICK, L., GEIGER, A. M. & GWINNETT, A. J. 1982, Incidence of white spot formation after bonding and banding , Am J Orthod , 81, 93-8
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The aim of this study was to compare fiber reinforced composite
with wired retainers in terms of assessing the rate bond failure and
plaque accumalation . The clinical study was conducted on 20
patients have completed their orthodontic treatment ,
the patients
have been devided into two groups , each group of 10 samples. The
first group of patients had quartz fiber-reinforced composite
retainers and the second group had traditional retainers. Then we
monitored patients every two months for a year. In each review we
were assessing if a retainer in its place or not, and we used disks to
assess the amount of plaque accumalation. Wilcoxon test has been
used to study the statistical significance differences in bond failure
rate and plaque accumalation.
Since the solution of direct bonding of orthodontic brackets as an alternative to full encircling of the dental arch, researchers have begun conducting studies to evaluate the adhesion materials and different methods of enamel preparation to reach the most appropriate method for the requirements of ideal adhesion.
This study aimed to compare the effects of different enamel
etching techniques for bracket bonding strength. The sample
consisted of eighty human premolars were randomly divided into
four equal groups. The enamel surfaces of the teeth were etched
with 35% orthophosphoric acid in Group 1 , air abraded with
50 μm aluminum oxide prior to acid etching in Group 2, Trans
bond Plus Self-etching Primer (TPSEP) in Group 3 , Er: YAG
laser in Group 4. After enamel etching procedures, brackets were
bonded with Trans bond XT , then shear bonding test was
performed using a testing machine (Tinius Olsen).
With the increase in the number of adult patients seeking orthodontic treatment, the need to ensure sufficient bonding strength for the fixed orthodontic components on the ceramic restorations has become an urgent matter. Adhesion of the orthodontic
bracket is an essential and indispensable step.
The laser has been used as an alternative effective method of etching enamel surface for direct bonding of orthodontic brackets instead of phosphoric acid. The aim of this study was to compare shear bond strength of orthodontic brackets following Er-
YAG versus Nd-YAG Laser etching. Eighty human extracted upper premolars were collected and divided randomly into two equal groups; the buccal enamel surface of the first group was etched by Er-YAG laser while the second group was etched by Nd-YAG laser. Each group was divided into two equal subgroups according to the bonding material type (chemical cure resin or light cure resin). The mechanical test has occurred by using a universal testing machine (Instron). The finding showed that no statistically significant differences in mean of shear bond strength between (Nd-YAG, Er-YAG) Laser etching group were found regardless of the bonding type.
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