| BackgroundFixed orthodontic appliance is one of the most common methods to treat malocclusion.The treatment with fixed appliances can not only align teeth, adjust occlusion, increasechewing efficiency, and improve periodontal health, but also eliminate adverse factors thathinder normal oral and maxillofacial growth and development as soon as possible, relievepsychological pressure caused by the disease, and maintain the patient’s physical andmental health. After removing fixed appliance, the appearance of enamel demineralizationhas been highly paid attention by the majority of dentists[1]. Besides, teenagers are themain population of orthodontic treatment, their unique features make some oral healthproblems more easily occur during the fixed orthodontic treatment compared with adults,such as enamel demineralization【2】, caries, swelling and bleeding gums, etc. Theseproblems can directly reduce the effects of the treatment, and even lead to the treatment tobe terminated【1.3】. Therefore, how to avoid or reduce the occurrence of the problems hasbecome an urgent issue for orthodontic dentists to solve.ObjectiveBecause complex treatment devices greatly reduce oral self-cleaning abilities, theyobstruct the patient’s maintaining oral hygiene to some extent so as to result in foodresidue on the teeth and increase plaque adhesion during the fixed orthodontic treatment.Plaques are colored red by a plaque disclosing agent so that they can be seen more easily.New plaque displaying agents including herbal ingredients, which were obtained from theChangchun Chinese medicine University, were used in clinical researches in order tomonitor the oral hygiene status of adolescent orthodontic patients. At first, the plaqueharmfulness and oral hygiene education were introduced to the patients. Then plaque index for orthodontics (PLI-O)[5,6]was detected and the oral hygiene condition was evaluated. Wehope that the agent can be applied in clinical treatment widely to reduce the incidence ofenamel demineralization and gingivitis that are caused by insufficient oral cleaning duringthe orthodontic process, and that its application will provide reference data for patient’smaintaining their oral hygiene during orthodontic treatment.MethodThe study population consisted of eighty adolescents aged12to18years, having beentreated with fixed appliance over three months. Patients came from Orthodonticsdepartment, Dental Hospital of Jilin University. All patients signed consent and wererandomly divided into two groups,40patients in each group. One week before thisexperiment started, all subjects were subjected to oral gingival scaling, and reviewed aweek later.(1) Patients in the experimental group were given oral health instruction, whileissuing plaque disclosing agents and directing their usage. They were reviewedconsecutively for3times, and their oral photos were taken when they were being reviewedusing the plaque disclosing agent.(2) Patients in the control group were given oral healthinstruction. They were reviewed consecutively for3times, and their oral photos weretaken when they were being reviewed using the plaque disclosing agent. Orthodontic toothplaque index (PLI-O) of Ramfjordindex teeth was examined[5,6]and the results wereanalyzed statistically with SPSS18.0statistical software.InnovationsIn this study, new plaque displaying agents include herbal ingredients such aschrysanthemums and mint extract, which are developed by the Changchun Chinesemedicine University. Its function is bacteriostatic and anti-inflammatory, and its taste iseasily accepted by the young patients. The display agent is a spray type and has manyadvantages, such as clean, convenience, and simple. Plaque displaying agents can beapplied in clinic widely and improve the ability of the patient’s self-monitoring oralhygiene. It is indicated that the new plaque displaying agent will prevent and control theoccurrence and development of dental and periodontal diseases so as to achieve a betterorthodontic treatment effect. ResultsThe comparison of PLI-O changes between experimental group and control group:Through oral health instruction and patient’s use of plaque disclosing agent, the PLI-Ovalue of patients in experimental group gradually decrease, and the decline tendency wasmore pronounced compared with that in the control group. There was a statisticallysignificant difference between two groups.The comparison of the plaque distribution of teeth in different positions: The resultsshowed that after oral hygiene guidance and use of a plaque disclosing agent, averagePLI-O value of premolars was the highest, the value of maxillary premolars was the mostsignificant (5.50±2.50), the value of maxillary central incisor was the lowest (3.13±2.74).The comparison of the plaque distribution in different regions of a tooth: The resultsshowed that during the orthodontic treatment with fixed appliances, plaque distribution indifferent regions had large difference. The region beneath the arch wire had the maximalnumber of plaques due to the existence of fixed appliances; secondarily, the gap regionbetween adjacent teeth had more plaques; gingival margin was the place that plaques wereeasy to accumulate; Bracket and tooth occlusal plane were the place that plaque removalefficiency was the best.ConclusionsUse of plaque displaying agents and intensively and clinically regular training of oralhealth[7]can make adolescent patients understand intuitively plaques so that the plaquesare removed timely and effectively, and meanwhile the interest of children’s brushing teethcan be not only improved, but the occurrence and development of dental and periodontaldisease are also prevented and controlled to achieve a better orthodontic treatment effect. |
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