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NJXDG EXAM 2025 QUESTIONS AND ANSWERS Applying topical fluoride gel or foam (efda) - ....ANSWER ...-Selecting the tray 1) Select a disposable tray that is of the appropriate size for the patient's mouth. The tray must be long and sufficiently deep to cover all erupted teeth completely without extending beyond the distal surface of the most posterior tooth. Trays are available in sizes to fit primary, mixed, and adult dentition. If the patient's mouth can accommodate it, you may use a double-arch tray. This saves time by treating both arches at the same time. Remember, trays are discarded after a single use & if you try a tray in the mouth but do not use it that tray must be discarded. Preparing the teeth 2) Check to see whether calculus is present; if it is not, no preparation is required. Fluoride diffuses easily through the acquired pellicle and bacterial plaque. 3) If calculus is present, request that the dentist or dental hygienist remove it. The presence of plaque will not affect the uptake of fluoride. ....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1