Hydration and Dehydration Periods of Crown Fragments Prior to Reattachment

Abstract

Compared to a 30-minute period, a 24-hour rehydration of the tooth fragment before treatment seems to salvage enough moisture to result in an increase in reattachment strength.

In vitro tooth reattachment techniques: A systematic review

“…In relation to the dental fragment rehydration process, the Capp et al study showed that BS could be recovered in a tooth whose fragment was dehydrated for a period of 48 hour, if the fragment was rehydrated with distilled water for 30 min prior to reattachment, resulting in a BS value equivalent to 167.59 N. The same study showed that the value of the BS was higher if the fragment was kept hydrated, attaining 184.36 N . Shirani et al showed that teeth rehydrated with distilled water for a period of 24 hours presented higher BS values than those rehydrated for 30 minute prior to the reattachment. However, when the fragment was dehydrated for a period of 30 minute or less, rehydration with distilled water 30 min before reattachment can promote recovery of part of the BS .…”

“…Shirani et al showed that teeth rehydrated with distilled water for a period of 24 hours presented higher BS values than those rehydrated for 30 minute prior to the reattachment. However, when the fragment was dehydrated for a period of 30 minute or less, rehydration with distilled water 30 min before reattachment can promote recovery of part of the BS . Using the same rehydration time (24 hour) for all groups analyzed, the Shirani et al study showed that teeth with the highest BS values were those that used milk (374.20 N) or saliva (328.6 N) as a moisturizing solution for the dental fragment, whereas a later Sharmin et al study showed that the group presenting the highest BS values was rehydrated in saline for a period of 24 h (75.91 N).…”

Tooth Fragment Reattachment and a Class IV Restoration: Case Report

“…Transport the fragment in an appropriate solution: Hank's Balanced Solution (HBSS), milk, egg white, hypertonic dextrose solution or saliva, water [4][5][6][7][8]. If these solutions are not available, store the fragment in the patient's saliva [17].…”

“…In cases where the tooth fragment has been recovered and stored in a recommended solution, reattachment of the fragment is possibly. Tested and recommended solutions are: Hank's Balanced Solution (HBSS), milk, egg white, hypertonic dextrose solution or saliva, water [4][5][6][7][8]. However, other treatments could be considered: class IV direct composite restoration, direct composite veneer, indirect ceramic veneer, post and cores, and indirect full prostheses.…”

10-year Follow-up of Natural Crown Bonding After Tooth Fracture

“…It is considered a key step in the treatment of fractured teeth and should be routinely conducted to avoid any flaws in the restoration of teeth that could compromise the bonding and esthetics; the fragment cannot regain its original color when it is dehydrated. 17 The limitations can be controlled by strictly following the adhesive protocol in order to ensure good fracture resistance and to maintain a satisfactory esthetic appearance without compromising the remaining dental tissue. 15 …”