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This case involves the reimplantation of an avulsed mandibular central tooth that occurred two hours after an accident. A nine-year old girl had visited nearest dental health care center complaining of an avulsed mandibular central tooth two hours after her bicycle accident. The avulsed tooth had been kept in milk in for those two hours. It was reimplanted and referred to a dentistry faculty with a composite splint. The patient presented to our clinic three days later. The nonhygienic composite splint was removed and gingivoplasty procedure was performed by a periodontologist. The new splint was applied using polythene fiber post. Clinically normal periodontal tissues were detected after two weeks, and endodontic treatment was begun. Root filling of the clinicall y asymptomatic tooth was performed after 30 days, and coronal restoration finished using composites. The tooth is still functional now after five years. The long-term prognosis for the replanted tooth is unclear. During this growth period, however, the hei ght of the alveolar bone has been preserved and is aesthetically satisfying.

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The surgical procedure that lessens edema formation after frenectomy surgery is important.Re-epithelialization with lasers occurs differently from conventional surgery, and this can affect the salivary EGF level. The aim of this study was to determine edema caused by frenectomy surgery and compare the amount of EGF in saliva. Conventional and 810 nm diode laser surgery performed with thirty-four patients. Laser parameters were 400 µm fiber with 2.5 W output energy, in continuous mode.3D face scan data was obtained with a Planmeca Proface Mid device and analyzed with the 3D metrology method using the CloudCompare V2 software. Cephalometric analysis was performed using 2D profile photographs with Geogebra software. Edema measurements were repeated on day 1 (T1), day 3 (T2) and day 14 (T3). All saliva samples were collected at T1 and T3 and salivary EGF concentration was determined using the ELISA method. In conventional surgery, a significant difference was found between ΔT2-T1 and ΔT3-T1 in 3D metrology measurements (p=0.0046). In 2D cephalometric measurements there was significant differences in Angle A T2-T1 vs. Angle A T3-T1 (p=0,0014) and vs. Angle B T2-T1 (p=0,0017) and vs. Angle B T3-T1 (p=0,0087) in conventional surgery. There were no significant changes in edema measurements of laser surgery. The laser frenectomy does not produce edema significantly (p=0,1232). There were no significant changes between groups in salivary EGF measurements (p>0.999). The 810 nm laser surgery produced less edema than conventional surgery. The 810 nm diode laser does not significantly affect salivary EGF.

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