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Intentional Replantation with a 2-segment Restoration Method to Treat Severe Palatogingival Grooves in the Maxillary Lateral Incisor: A Report of 3 Cases.
Journal of Endodontics 2019 October 30
The palatogingival groove is a developmental anomaly that typically starts near the cingulum of the maxillary incisors and extends along the roots at varying lengths and depths. Severe grooves that extend to the root apex often lead to complex combined periodontal-endodontic lesions. There are various therapeutic options available for these cases; however, the prognosis is unfavorable. Here, we report the successful surgical treatment of 3 cases of maxillary lateral incisors with severe palatogingival grooves using intentional replantation with a 2-segment restoration method. The teeth were gently extracted, resulting in minimal damage to the periodontal ligament. Under a dental operating microscope, 3 mm of the root end was resected. The palatogingival groove was removed, and root-end preparation was performed with a #700 fissure bur. The groove cavity was connected with root-end cavity to form a class II cavity. The cavity was then filled using a 2-segment restoration method (ie, dividing the cavity into 2 parts by the cementoenamel junction, the coronal portion was filled with a flowable composite while the radicular portion, including the root-end cavity, was filled with bioceramics). The tooth was then replanted into its alveolar bone and splinted with a flexible splint for 7 days. The sinus tract was closed at the 1-week postoperative visit. During subsequent recalls, the teeth showed almost complete periapical healing. In summary, intentional replantation with a 2-segment restoration method is a viable treatment modality for single-rooted teeth with a severe palatogingival groove that extends to the root apex.
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