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Dentists: The Four Period Of Retention

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In this study, the retention phase was divided into four periods, and the dentists were asked to define the duration of each period in details, while using removable retainers. There were big differences in dentists' responses, because not all the dentists were following a four periods retention regimen. In addition, a high variety regarding the duration of retention phase was described, which was between 6 months and lifelong, as many dentists prefer to instruct their patients to wear the removable retainer permanently. In general, the median of the first period of retention was six months, in which the patients were asked to wear the retainer 13 hours per day, and seven days per week (Table 4.2). When fixed retainers were applied, the vast

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