ABSTRACT
BACKGROUND: General dental practitioners and non-orthodontic specialty can play an essential role of education and motivation of their patients about the principles and practice of orthodontic treatment; which can be very beneficial to the patient's lifestyle. It is, therefore, important to identify their level of knowledge and attitude toward orthodontic treatment. This study was planned to study this aspect in the form of comparative analysis in general dental practitioners and other specialties (except orthodontia) in dentistry. MATERIALS AND METHODS: The study was done on 78 dentists, which was divided into two groups. Group I consisted of 46 general dental practitioners and Group II consisted of 32 non-orthodontic specialties. The study was carried out with the help of 21 questionnaires, which consisted of 13 questions of orthodontic knowledge and 08 questions about the attitude toward orthodontic practice. The scores were calculated, and statistical analysis was done with the help of IBM SPSS statistics 20, using Student's t-test. RESULTS: The comparative analysis showed highly significant difference of knowledge and attitude score between general dental practitioners and non-orthodontic specialties (Student's t-test, P < 0.001). Also the comparison was made between male and female practitioners, who showed more scores in case of male practitioners; but the difference was not significant statistically (Student's t-test, P > 0.01). CONCLUSION: The results of the study were moderately satisfactory, and it showed the need for increased clinically oriented education of practice and concepts of orthodontic treatment.
ABSTRACT
BACKGROUND: The purpose of this study is to evaluate the effect of casein phosphopeptide amorphous calcium phosphate (CPP-ACP) and CPP-ACP with fluoride (CPP-ACP-F) on the shear bond strength (SBS) of orthodontic brackets bonded with two different adhesive systems. METHODS: One hundred twenty-six human premolar teeth were selected. One hundred twenty teeth were used for SBS testing, and six teeth were used for scanning electron microscope (SEM) examination. One hundred twenty premolars were divided into mainly three groups: CPP-ACP (group A), CPP-ACP-F (group B), and control group (group C). Each group was sub-divided into two groups according to the bonding adhesive, light cure (groups A1, B1, and C1) and chemical cure (groups A2, B2, and C2). The teeth were pre-treated with the group-specified preventive agent 1 h/day for five consecutive days. Standard edgewise brackets were bonded with the respective adhesives. SBS evaluation was done with the universal testing machine. After debonding, all the teeth were scored for adhesive remaining on the buccal surface, in accordance to adhesive remnant index, under a stereomicroscope. The acid-etched enamel surfaces were observed under SEM after treatment with CPP-ACP, CPP-ACP-F, and artificial saliva. RESULT: In light-cure adhesive group, CPP-ACP-F (B1) showed superior results compared to the control group (C1), whereas the CPP-ACP group (A1) showed lower mean SBS than the control group (C1). Both these differences were not statistically significant (p > 0.05). In chemical-cure adhesive group, control group C2 showed significantly superior results (p < 0.05) compared to group A2 and group B2. The results of two-way ANOVA showed highly significant difference due to adhesive types (p < 0.01), whereas enamel pre-treatment showed non-significant difference (p > 0.01). CONCLUSION: The SBS of the orthodontic brackets was non-significantly affected when the brackets were cured with light-cure bonding system and treated with either CPP-ACP or CPP-ACP-F, whereas with chemical-cure adhesive, decreased bond strength was seen, which was within the clinically acceptable limits.
