Successful auto-transplantation of a mandibular third molar: A case report on restoring esthetics and function in a 66-year-old patient.

Key Clinical Message: This article describes a successful case of auto-transplantation of a mandibular third molar to replace a non-restorable second molar, highlighting the efficacy of this procedure in restoring function with factors like asepsis, surgical technique, and postoperative care contributing to the success. Abstract: This case report describes successful auto-transplantation of a mandibular third molar to replace a non-restorable second molar in a 66-year-old patient. The procedure involved atraumatic extraction, repositioning, and stabilization of the donor tooth, followed by postoperative care and 1-year follow-up. The favorable outcome highlights the potential of mature third molar transplantation as an effective approach for replacement of missing or non-restorable permanent molar teeth to restore esthetics and function. The success of the procedure was attributed to factors such as asepsis, atraumatic surgical technique, preservation of the periodontal ligament (PDL) vitality, minimal extraoral time, optimal occlusion, and adequate fixation. At the 1-year follow-up, the patient was asymptomatic with stable occlusion, highlighting the optimal efficacy of the procedure.

Management of a supernumerary tooth fused to the labial surface of a permanent maxillary central incisor.

Key Clinical Message: Management of supernumerary teeth fused to the labial surface of permanent maxillary central incisors would require a multidisciplinary approach comprising of endodontic treatment, periodontal recontouring, and cosmetic composite restoration. Abstract: The reported cases of supernumerary teeth fused to the labial surface of maxillary central incisors are rare. Such cases need multidisciplinary approaches. Herein, management of a supernumerary tooth fused to the labial surface of a maxillary central incisor is reported. Due to the presence of a communication path between the root canal systems of the two fused teeth, root canal therapy was performed first for the maxillary left central incisor and the supernumerary tooth. The crown of the supernumerary tooth was then removed in a surgical setting while preserving the root to maintain the thin covering of alveolar bone and prevent future periodontal problems. Subsequently, an esthetic composite restoration was performed.

An odontogenic cutaneous sinus tract in an unusual site with multiple misdiagnoses.

Key Clinical Message: Dental clinicians and physicians should be careful in differential diagnosis of facial cutaneous nodules, since they might have an odontogenic origin. Abstract: Odontogenic cutaneous sinus tracts are commonly misdiagnosed and mismanaged; thus, they are prone to recurrence. Herein, a 21-year-old female patient is reported with a red fluctuant nodule on her right cheek which had been misdiagnosed as an epidermoid cyst, cystic acne, and parotid gland fistula. The odontogenic origin of the lesion was first suspected when the patient presented to the Department of Endodontics, Faculty of Dentistry for a routine dental check-up. Multiple-visit non-surgical root canal retreatment of the maxillary right first molar, without any additional treatment, resulted in shrinkage of the lesion. After 1 year, the lesion was resolved completely, the respective tooth and the cheek were asymptomatic, and the patient had no complaint.

Effect of Intracanal Glass-Ionomer Barrier Thickness on Microleakage in Coronal Part of Root in Endodontically Treated Teeth: an In Vitro Study.

STATEMENT OF THE PROBLEM: The most common cause of endodontic treatment failures is improper coronal sealing. Therefore, besides to proper root sealing, coronal sealing which is supported by a proper restoration has a major role in endodontic treatment success, and coronal microleakage should be considered as an etiologic factor in endodontic treatment failure. Glass-ionomer (GI) has been proposed as a coronal barrier for microleakage after endodontic treatment. PURPOSE: This study aimed to evaluate the coronal microleakage in GI-obturated root canals in endodontically treated teeth using different thicknesses of GI. MATERIALS AND METHOD: In this in vitro study, forty-five single-rooted extracted human teeth with single canals were collected and disinfected with 0.5% chloramine solution. After endodontic treatment, teeth were divided into 3 groups. In the group 1 to 3, 1 to 3mm of gutta-percha was removed and GI was replaced at 1-, 2- and 3-mm thicknesses respectively. Then subgroups were placed in methylene blue dye and the microleakage was assessed using dye penetration. RESULTS: The mean dye penetration in groups 1, 2 and 3 were 5.1, 3.7 and 2.9, respectively, with statistically significant differences. Group 1 exhibited the highest amount of dye penetration while group 3 showed the least one. Moreover, a significant difference between groups 1 and 2 (p= 0.002) and a non-significant difference between groups 2 and 3 (p= 0.098) was detected in mean dye penetration. CONCLUSION: Thicker layers of GI might decrease the coronal microleakage. GI at 3-mm thickness resulted in the best protective effect on coronal microleakage in endodontically treated teeth, though further studies are needed to confirm these results.